diff --git a/lib/cocoa/src/TApplicationException.h b/lib/cocoa/src/TApplicationException.h
new file mode 100644
index 0000000..cf1641d
--- /dev/null
+++ b/lib/cocoa/src/TApplicationException.h
@@ -0,0 +1,44 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+#import "TException.h"
+#import "TProtocol.h"
+
+enum {
+  TApplicationException_UNKNOWN = 0,
+  TApplicationException_UNKNOWN_METHOD = 1,
+  TApplicationException_INVALID_MESSAGE_TYPE = 2,
+  TApplicationException_WRONG_METHOD_NAME = 3,
+  TApplicationException_BAD_SEQUENCE_ID = 4,
+  TApplicationException_MISSING_RESULT = 5
+};
+
+// FIXME
+@interface TApplicationException : TException {
+  int mType;
+}
+
++ (TApplicationException *) read: (id <TProtocol>) protocol;
+
+- (void) write: (id <TProtocol>) protocol;
+
++ (TApplicationException *) exceptionWithType: (int) type
+                                       reason: (NSString *) message;
+
+@end
diff --git a/lib/cocoa/src/TApplicationException.m b/lib/cocoa/src/TApplicationException.m
new file mode 100644
index 0000000..7068753
--- /dev/null
+++ b/lib/cocoa/src/TApplicationException.m
@@ -0,0 +1,130 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+#import "TApplicationException.h"
+#import "TProtocolUtil.h"
+
+@implementation TApplicationException
+
+- (id) initWithType: (int) type
+             reason: (NSString *) reason
+{
+  mType = type;
+
+  NSString * name;
+  switch (type) {
+  case TApplicationException_UNKNOWN_METHOD:
+    name = @"Unknown method";
+    break;
+  case TApplicationException_INVALID_MESSAGE_TYPE:
+    name = @"Invalid message type";
+    break;
+  case TApplicationException_WRONG_METHOD_NAME:
+    name = @"Wrong method name";
+    break;
+  case TApplicationException_BAD_SEQUENCE_ID:
+    name = @"Bad sequence ID";
+    break;
+  case TApplicationException_MISSING_RESULT:
+    name = @"Missing result";
+    break;
+  default:
+    name = @"Unknown";
+    break;
+  }
+
+  self = [super initWithName: name reason: reason userInfo: nil];
+  return self;
+}
+
+
++ (TApplicationException *) read: (id <TProtocol>) protocol
+{
+  NSString * reason = nil;
+  int type = TApplicationException_UNKNOWN;
+  int fieldType;
+  int fieldID;
+
+  [protocol readStructBeginReturningName: NULL];
+
+  while (true) {
+    [protocol readFieldBeginReturningName: NULL
+              type: &fieldType
+              fieldID: &fieldID];
+    if (fieldType == TType_STOP) {
+      break;
+    }
+    switch (fieldID) {
+    case 1:
+      if (fieldType == TType_STRING) {
+        reason = [protocol readString];
+      } else {
+        [TProtocolUtil skipType: fieldType onProtocol: protocol];
+      }
+      break;
+    case 2:
+      if (fieldType == TType_I32) {
+        type = [protocol readI32];
+      } else {
+        [TProtocolUtil skipType: fieldType onProtocol: protocol];
+      }
+      break;
+    default:
+      [TProtocolUtil skipType: fieldType onProtocol: protocol];
+      break;
+    }
+    [protocol readFieldEnd];
+  }
+  [protocol readStructEnd];
+
+  return [TApplicationException exceptionWithType: type reason: reason];
+}
+
+
+- (void) write: (id <TProtocol>) protocol
+{
+  [protocol writeStructBeginWithName: @"TApplicationException"];
+
+  if ([self reason] != nil) {
+    [protocol writeFieldBeginWithName: @"message"
+                 type: TType_STRING
+                 fieldID: 1];
+    [protocol writeString: [self reason]];
+    [protocol writeFieldEnd];
+  }
+
+  [protocol writeFieldBeginWithName: @"type"
+               type: TType_I32
+               fieldID: 2];
+  [protocol writeI32: mType];
+  [protocol writeFieldEnd];
+
+  [protocol writeFieldStop];
+  [protocol writeStructEnd];
+}
+
+
++ (TApplicationException *) exceptionWithType: (int) type
+                                      reason: (NSString *) reason
+{
+  return [[[TApplicationException alloc] initWithType: type
+                                         reason: reason] autorelease];
+}
+
+@end
diff --git a/lib/cocoa/src/TException.h b/lib/cocoa/src/TException.h
new file mode 100644
index 0000000..b069a86
--- /dev/null
+++ b/lib/cocoa/src/TException.h
@@ -0,0 +1,34 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+#import <Cocoa/Cocoa.h>
+
+@interface TException : NSException {
+}
+
++ (id) exceptionWithName: (NSString *) name;
+
++ (id) exceptionWithName: (NSString *) name
+                  reason: (NSString *) reason;
+
++ (id) exceptionWithName: (NSString *) name
+                  reason: (NSString *) reason
+                   error: (NSError *) error;
+
+@end
diff --git a/lib/cocoa/src/TException.m b/lib/cocoa/src/TException.m
new file mode 100644
index 0000000..7c84199
--- /dev/null
+++ b/lib/cocoa/src/TException.m
@@ -0,0 +1,64 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+#import "TException.h"
+
+@implementation TException
+
++ (id) exceptionWithName: (NSString *) name
+{
+  return [self exceptionWithName: name reason: @"unknown" error: nil];
+}
+
+
++ (id) exceptionWithName: (NSString *) name
+                  reason: (NSString *) reason
+{
+  return [self exceptionWithName: name reason: reason error: nil];
+}
+
+
++ (id) exceptionWithName: (NSString *) name
+                  reason: (NSString *) reason
+                   error: (NSError *) error
+{
+  NSDictionary * userInfo = nil;
+  if (error != nil) {
+    userInfo = [NSDictionary dictionaryWithObject: error forKey: @"error"];
+  }
+
+  return [super exceptionWithName: name
+                reason: reason
+                userInfo: userInfo];
+}
+
+
+- (NSString *) description
+{
+  NSMutableString * result = [NSMutableString stringWithString: [self name]];
+  [result appendFormat: @": %@", [self reason]];
+  if ([self userInfo] != nil) {
+    [result appendFormat: @"\n  userInfo = %@", [self userInfo]];
+  }
+
+  return result;
+}
+
+
+@end
diff --git a/lib/cocoa/src/TProcessor.h b/lib/cocoa/src/TProcessor.h
new file mode 100644
index 0000000..f8df225
--- /dev/null
+++ b/lib/cocoa/src/TProcessor.h
@@ -0,0 +1,28 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+#import <Cocoa/Cocoa.h>
+
+
+@protocol TProcessor <NSObject>
+
+- (BOOL) processOnInputProtocol: (id <TProtocol>) inProtocol
+                 outputProtocol: (id <TProtocol>) outProtocol;
+
+@end
diff --git a/lib/cocoa/src/protocol/TBinaryProtocol.h b/lib/cocoa/src/protocol/TBinaryProtocol.h
new file mode 100644
index 0000000..52cf266
--- /dev/null
+++ b/lib/cocoa/src/protocol/TBinaryProtocol.h
@@ -0,0 +1,51 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+#import "TProtocol.h"
+#import "TTransport.h"
+#import "TProtocolFactory.h"
+
+
+@interface TBinaryProtocol : NSObject <TProtocol> {
+  id <TTransport> mTransport;
+  BOOL mStrictRead;
+  BOOL mStrictWrite;
+  int32_t mMessageSizeLimit;
+}
+
+- (id) initWithTransport: (id <TTransport>) transport;
+
+- (id) initWithTransport: (id <TTransport>) transport
+              strictRead: (BOOL) strictRead
+             strictWrite: (BOOL) strictWrite;
+
+- (int32_t) messageSizeLimit;
+- (void) setMessageSizeLimit: (int32_t) sizeLimit;
+
+@end;
+
+
+@interface TBinaryProtocolFactory : NSObject <TProtocolFactory> {
+}
+
++ (TBinaryProtocolFactory *) sharedFactory;
+
+- (TBinaryProtocol *) newProtocolOnTransport: (id <TTransport>) transport;
+
+@end
diff --git a/lib/cocoa/src/protocol/TBinaryProtocol.m b/lib/cocoa/src/protocol/TBinaryProtocol.m
new file mode 100644
index 0000000..ba7f462
--- /dev/null
+++ b/lib/cocoa/src/protocol/TBinaryProtocol.m
@@ -0,0 +1,469 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+#import "TBinaryProtocol.h"
+#import "TProtocolException.h"
+
+int32_t VERSION_1 = 0x80010000;
+int32_t VERSION_MASK = 0xffff0000;
+
+
+static TBinaryProtocolFactory * gSharedFactory = nil;
+
+@implementation TBinaryProtocolFactory
+
++ (TBinaryProtocolFactory *) sharedFactory {
+  if (gSharedFactory == nil) {
+    gSharedFactory = [[TBinaryProtocolFactory alloc] init];
+  }
+
+  return gSharedFactory;
+}
+
+- (TBinaryProtocol *) newProtocolOnTransport: (id <TTransport>) transport {
+  return [[[TBinaryProtocol alloc] initWithTransport: transport] autorelease];
+}
+
+@end
+
+
+
+@implementation TBinaryProtocol
+
+- (id) initWithTransport: (id <TTransport>) transport
+{
+  return [self initWithTransport: transport strictRead: NO strictWrite: NO];
+}
+
+- (id) initWithTransport: (id <TTransport>) transport
+              strictRead: (BOOL) strictRead
+             strictWrite: (BOOL) strictWrite
+{
+  self = [super init];
+  mTransport = [transport retain];
+  mStrictRead = strictRead;
+  mStrictWrite = strictWrite;
+  return self;
+}
+
+
+- (int32_t) messageSizeLimit
+{
+  return mMessageSizeLimit;
+}
+
+
+- (void) setMessageSizeLimit: (int32_t) sizeLimit
+{
+  mMessageSizeLimit = sizeLimit;
+}
+
+
+- (void) dealloc
+{
+  [mTransport release];
+  [super dealloc];
+}
+
+
+- (id <TTransport>) transport
+{
+  return mTransport;
+}
+
+
+- (NSString *) readStringBody: (int) size
+{
+  char buff[size+1];
+  [mTransport readAll: (uint8_t *) buff offset: 0 length: size];
+  buff[size] = 0;
+  return [NSString stringWithUTF8String: buff];
+}
+
+
+- (void) readMessageBeginReturningName: (NSString **) name
+                                  type: (int *) type
+                            sequenceID: (int *) sequenceID
+{
+  int32_t size = [self readI32];
+  if (size < 0) {
+    int version = size & VERSION_MASK;
+    if (version != VERSION_1) {
+      @throw [TProtocolException exceptionWithName: @"TProtocolException"
+                                 reason: @"Bad version in readMessageBegin"];
+    }
+    if (type != NULL) {
+      *type = version & 0x00FF;
+    }
+    NSString * messageName = [self readString];
+    if (name != NULL) {
+      *name = messageName;
+    }
+    int seqID = [self readI32];
+    if (sequenceID != NULL) {
+      *sequenceID = seqID;
+    }
+  } else {
+    if (mStrictRead) {
+      @throw [TProtocolException exceptionWithName: @"TProtocolException"
+                                 reason: @"Missing version in readMessageBegin, old client?"];
+    }
+    if ([self messageSizeLimit] > 0 && size > [self messageSizeLimit]) {
+      @throw [TProtocolException exceptionWithName: @"TProtocolException"
+                                            reason: [NSString stringWithFormat: @"Message too big.  Size limit is: %d Message size is: %d",
+                                                     mMessageSizeLimit,
+                                                     size]];
+    }
+    NSString * messageName = [self readStringBody: size];
+    if (name != NULL) {
+      *name = messageName;
+    }
+    int messageType = [self readByte];
+    if (type != NULL) {
+      *type = messageType;
+    }
+    int seqID = [self readI32];
+    if (sequenceID != NULL) {
+      *sequenceID = seqID;
+    }
+  }
+}
+
+
+- (void) readMessageEnd {}
+
+
+- (void) readStructBeginReturningName: (NSString **) name
+{
+  if (name != NULL) {
+    *name = nil;
+  }
+}
+
+
+- (void) readStructEnd {}
+
+
+- (void) readFieldBeginReturningName: (NSString **) name
+                                type: (int *) fieldType
+                             fieldID: (int *) fieldID
+{
+  if (name != NULL) {
+    *name = nil;
+  }
+  int ft = [self readByte];
+  if (fieldType != NULL) {
+    *fieldType = ft;
+  }
+  if (ft != TType_STOP) {
+    int fid = [self readI16];
+    if (fieldID != NULL) {
+      *fieldID = fid;
+    }
+  }
+}
+
+
+- (void) readFieldEnd {}
+
+
+- (int32_t) readI32
+{
+  uint8_t i32rd[4];
+  [mTransport readAll: i32rd offset: 0 length: 4];
+  return
+    ((i32rd[0] & 0xff) << 24) |
+    ((i32rd[1] & 0xff) << 16) |
+    ((i32rd[2] & 0xff) <<  8) |
+    ((i32rd[3] & 0xff));
+}
+
+
+- (NSString *) readString
+{
+  int size = [self readI32];
+  return [self readStringBody: size];
+}
+
+
+- (BOOL) readBool
+{
+  return [self readByte] == 1;
+}
+
+- (uint8_t) readByte
+{
+  uint8_t myByte;
+  [mTransport readAll: &myByte offset: 0 length: 1];
+  return myByte;
+}
+
+- (short) readI16
+{
+  uint8_t buff[2];
+  [mTransport readAll: buff offset: 0 length: 2];
+  return (short)
+    (((buff[0] & 0xff) << 8) |
+     ((buff[1] & 0xff)));
+  return 0;
+}
+
+- (int64_t) readI64;
+{
+  uint8_t i64rd[8];
+  [mTransport readAll: i64rd offset: 0 length: 8];
+  return
+    ((int64_t)(i64rd[0] & 0xff) << 56) |
+    ((int64_t)(i64rd[1] & 0xff) << 48) |
+    ((int64_t)(i64rd[2] & 0xff) << 40) |
+    ((int64_t)(i64rd[3] & 0xff) << 32) |
+    ((int64_t)(i64rd[4] & 0xff) << 24) |
+    ((int64_t)(i64rd[5] & 0xff) << 16) |
+    ((int64_t)(i64rd[6] & 0xff) <<  8) |
+    ((int64_t)(i64rd[7] & 0xff));
+}
+
+- (double) readDouble;
+{
+  // FIXME - will this get us into trouble on PowerPC?
+  int64_t ieee754 = [self readI64];
+  return *((double *) &ieee754);
+}
+
+
+- (NSData *) readBinary
+{
+  int32_t size = [self readI32];
+  uint8_t * buff = malloc(size);
+  if (buff == NULL) {
+    @throw [TProtocolException
+             exceptionWithName: @"TProtocolException"
+             reason: [NSString stringWithFormat: @"Out of memory.  Unable to allocate %d bytes trying to read binary data.",
+                               size]];
+  }
+  [mTransport readAll: buff offset: 0 length: size];
+  return [NSData dataWithBytesNoCopy: buff length: size];
+}
+
+
+- (void) readMapBeginReturningKeyType: (int *) keyType
+                            valueType: (int *) valueType
+                                 size: (int *) size
+{
+  int kt = [self readByte];
+  int vt = [self readByte];
+  int s = [self readI32];
+  if (keyType != NULL) {
+    *keyType = kt;
+  }
+  if (valueType != NULL) {
+    *valueType = vt;
+  }
+  if (size != NULL) {
+    *size = s;
+  }
+}
+
+- (void) readMapEnd {}
+
+
+- (void) readSetBeginReturningElementType: (int *) elementType
+                                     size: (int *) size
+{
+  int et = [self readByte];
+  int s = [self readI32];
+  if (elementType != NULL) {
+    *elementType = et;
+  }
+  if (size != NULL) {
+    *size = s;
+  }
+}
+
+
+- (void) readSetEnd {}
+
+
+- (void) readListBeginReturningElementType: (int *) elementType
+                                      size: (int *) size
+{
+  int et = [self readByte];
+  int s = [self readI32];
+  if (elementType != NULL) {
+    *elementType = et;
+  }
+  if (size != NULL) {
+    *size = s;
+  }
+}
+
+
+- (void) readListEnd {}
+
+
+- (void) writeByte: (uint8_t) value
+{
+  [mTransport write: &value offset: 0 length: 1];
+}
+
+
+- (void) writeMessageBeginWithName: (NSString *) name
+                              type: (int) messageType
+                        sequenceID: (int) sequenceID
+{
+  if (mStrictWrite) {
+    int version = VERSION_1 | messageType;
+    [self writeI32: version];
+    [self writeString: name];
+    [self writeI32: sequenceID];
+  } else {
+    [self writeString: name];
+    [self writeByte: messageType];
+    [self writeI32: sequenceID];
+  }
+}
+
+
+- (void) writeMessageEnd {}
+
+
+- (void) writeStructBeginWithName: (NSString *) name {}
+
+
+- (void) writeStructEnd {}
+
+
+- (void) writeFieldBeginWithName: (NSString *) name
+                            type: (int) fieldType
+                         fieldID: (int) fieldID
+{
+  [self writeByte: fieldType];
+  [self writeI16: fieldID];
+}
+
+
+- (void) writeI32: (int32_t) value
+{
+  uint8_t buff[4];
+  buff[0] = 0xFF & (value >> 24);
+  buff[1] = 0xFF & (value >> 16);
+  buff[2] = 0xFF & (value >> 8);
+  buff[3] = 0xFF & value;
+  [mTransport write: buff offset: 0 length: 4];
+}
+
+- (void) writeI16: (short) value
+{
+  uint8_t buff[2];
+  buff[0] = 0xff & (value >> 8);
+  buff[1] = 0xff & value;
+  [mTransport write: buff offset: 0 length: 2];
+}
+
+
+- (void) writeI64: (int64_t) value
+{
+  uint8_t buff[8];
+  buff[0] = 0xFF & (value >> 56);
+  buff[1] = 0xFF & (value >> 48);
+  buff[2] = 0xFF & (value >> 40);
+  buff[3] = 0xFF & (value >> 32);
+  buff[4] = 0xFF & (value >> 24);
+  buff[5] = 0xFF & (value >> 16);
+  buff[6] = 0xFF & (value >> 8);
+  buff[7] = 0xFF & value;
+  [mTransport write: buff offset: 0 length: 8];
+}
+
+- (void) writeDouble: (double) value
+{
+  // spit out IEEE 754 bits - FIXME - will this get us in trouble on
+  // PowerPC?
+  [self writeI64: *((int64_t *) &value)];
+}
+
+
+- (void) writeString: (NSString *) value
+{
+  if (value != nil) {
+    const char * utf8Bytes = [value UTF8String];
+    size_t length = strlen(utf8Bytes);
+    [self writeI32: length];
+    [mTransport write: (uint8_t *) utf8Bytes offset: 0 length: length];
+  } else {
+    // instead of crashing when we get null, let's write out a zero
+    // length string
+    [self writeI32: 0];
+  }
+}
+
+
+- (void) writeBinary: (NSData *) data
+{
+  [self writeI32: [data length]];
+  [mTransport write: [data bytes] offset: 0 length: [data length]];
+}
+
+- (void) writeFieldStop
+{
+  [self writeByte: TType_STOP];
+}
+
+
+- (void) writeFieldEnd {}
+
+
+- (void) writeMapBeginWithKeyType: (int) keyType
+                        valueType: (int) valueType
+                             size: (int) size
+{
+  [self writeByte: keyType];
+  [self writeByte: valueType];
+  [self writeI32: size];
+}
+
+- (void) writeMapEnd {}
+
+
+- (void) writeSetBeginWithElementType: (int) elementType
+                                 size: (int) size
+{
+  [self writeByte: elementType];
+  [self writeI32: size];
+}
+
+- (void) writeSetEnd {}
+
+
+- (void) writeListBeginWithElementType: (int) elementType
+                                  size: (int) size
+{
+  [self writeByte: elementType];
+  [self writeI32: size];
+}
+
+- (void) writeListEnd {}
+
+
+- (void) writeBool: (BOOL) value
+{
+  [self writeByte: (value ? 1 : 0)];
+}
+
+@end
diff --git a/lib/cocoa/src/protocol/TProtocol.h b/lib/cocoa/src/protocol/TProtocol.h
new file mode 100644
index 0000000..cc8cdb4
--- /dev/null
+++ b/lib/cocoa/src/protocol/TProtocol.h
@@ -0,0 +1,148 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+#import <Cocoa/Cocoa.h>
+
+#import "TTransport.h"
+
+
+enum {
+  TMessageType_CALL = 1,
+  TMessageType_REPLY = 2,
+  TMessageType_EXCEPTION = 3,
+  TMessageType_ONEWAY = 4
+};
+
+enum {
+  TType_STOP   = 0,
+  TType_VOID   = 1,
+  TType_BOOL   = 2,
+  TType_BYTE   = 3,
+  TType_DOUBLE = 4,
+  TType_I16    = 6,
+  TType_I32    = 8,
+  TType_I64    = 10,
+  TType_STRING = 11,
+  TType_STRUCT = 12,
+  TType_MAP    = 13,
+  TType_SET    = 14,
+  TType_LIST   = 15
+};
+
+
+@protocol TProtocol <NSObject>
+
+- (id <TTransport>) transport;
+
+- (void) readMessageBeginReturningName: (NSString **) name
+                                  type: (int *) type
+                            sequenceID: (int *) sequenceID;
+- (void) readMessageEnd;
+
+- (void) readStructBeginReturningName: (NSString **) name;
+- (void) readStructEnd;
+
+- (void) readFieldBeginReturningName: (NSString **) name
+                                type: (int *) fieldType
+                             fieldID: (int *) fieldID;
+- (void) readFieldEnd;
+
+- (NSString *) readString;
+
+- (BOOL) readBool;
+
+- (unsigned char) readByte;
+
+- (short) readI16;
+
+- (int32_t) readI32;
+
+- (int64_t) readI64;
+
+- (double) readDouble;
+
+- (NSData *) readBinary;
+
+- (void) readMapBeginReturningKeyType: (int *) keyType
+                            valueType: (int *) valueType
+                                 size: (int *) size;
+- (void) readMapEnd;
+
+
+- (void) readSetBeginReturningElementType: (int *) elementType
+                                     size: (int *) size;
+- (void) readSetEnd;
+
+
+- (void) readListBeginReturningElementType: (int *) elementType
+                                      size: (int *) size;
+- (void) readListEnd;
+
+
+- (void) writeMessageBeginWithName: (NSString *) name
+                              type: (int) messageType
+                        sequenceID: (int) sequenceID;
+- (void) writeMessageEnd;
+
+- (void) writeStructBeginWithName: (NSString *) name;
+- (void) writeStructEnd;
+
+- (void) writeFieldBeginWithName: (NSString *) name
+                            type: (int) fieldType
+                         fieldID: (int) fieldID;
+
+- (void) writeI32: (int32_t) value;
+
+- (void) writeI64: (int64_t) value;
+
+- (void) writeI16: (short) value;
+
+- (void) writeByte: (uint8_t) value;
+
+- (void) writeString: (NSString *) value;
+
+- (void) writeDouble: (double) value;
+
+- (void) writeBool: (BOOL) value;
+
+- (void) writeBinary: (NSData *) data;
+
+- (void) writeFieldStop;
+
+- (void) writeFieldEnd;
+
+- (void) writeMapBeginWithKeyType: (int) keyType
+                        valueType: (int) valueType
+                             size: (int) size;
+- (void) writeMapEnd;
+
+
+- (void) writeSetBeginWithElementType: (int) elementType
+                                 size: (int) size;
+- (void) writeSetEnd;
+
+
+- (void) writeListBeginWithElementType: (int) elementType
+                                  size: (int) size;
+
+- (void) writeListEnd;
+
+
+@end
+
diff --git a/lib/cocoa/src/protocol/TProtocolException.h b/lib/cocoa/src/protocol/TProtocolException.h
new file mode 100644
index 0000000..ad354fc
--- /dev/null
+++ b/lib/cocoa/src/protocol/TProtocolException.h
@@ -0,0 +1,25 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+#import "TException.h"
+
+@interface TProtocolException : TException {
+}
+
+@end
diff --git a/lib/cocoa/src/protocol/TProtocolException.m b/lib/cocoa/src/protocol/TProtocolException.m
new file mode 100644
index 0000000..681487a
--- /dev/null
+++ b/lib/cocoa/src/protocol/TProtocolException.m
@@ -0,0 +1,23 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+#import "TProtocolException.h"
+
+@implementation TProtocolException
+@end
diff --git a/lib/cocoa/src/protocol/TProtocolFactory.h b/lib/cocoa/src/protocol/TProtocolFactory.h
new file mode 100644
index 0000000..2d125e9
--- /dev/null
+++ b/lib/cocoa/src/protocol/TProtocolFactory.h
@@ -0,0 +1,29 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+#import <Cocoa/Cocoa.h>
+#import "TProtocol.h"
+#import "TTransport.h"
+
+
+@protocol TProtocolFactory <NSObject>
+
+- (id <TProtocol>) newProtocolOnTransport: (id <TTransport>) transport;
+
+@end
diff --git a/lib/cocoa/src/protocol/TProtocolUtil.h b/lib/cocoa/src/protocol/TProtocolUtil.h
new file mode 100644
index 0000000..c2d2521
--- /dev/null
+++ b/lib/cocoa/src/protocol/TProtocolUtil.h
@@ -0,0 +1,29 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+#import "TProtocol.h"
+#import "TTransport.h"
+
+@interface TProtocolUtil : NSObject {
+
+}
+
++ (void) skipType: (int) type onProtocol: (id <TProtocol>) protocol;
+
+@end;
diff --git a/lib/cocoa/src/protocol/TProtocolUtil.m b/lib/cocoa/src/protocol/TProtocolUtil.m
new file mode 100644
index 0000000..13d7095
--- /dev/null
+++ b/lib/cocoa/src/protocol/TProtocolUtil.m
@@ -0,0 +1,104 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+#import "TProtocolUtil.h"
+
+@implementation TProtocolUtil
+
++ (void) skipType: (int) type onProtocol: (id <TProtocol>) protocol
+{
+  switch (type) {
+  case TType_BOOL:
+    [protocol readBool];
+    break;
+  case TType_BYTE:
+    [protocol readByte];
+    break;
+  case TType_I16:
+    [protocol readI16];
+    break;
+  case TType_I32:
+    [protocol readI32];
+    break;
+  case TType_I64:
+    [protocol readI64];
+    break;
+  case TType_DOUBLE:
+    [protocol readDouble];
+    break;
+  case TType_STRING:
+    [protocol readString];
+    break;
+  case TType_STRUCT:
+    [protocol readStructBeginReturningName: NULL];
+    while (true) {
+      int fieldType;
+      [protocol readFieldBeginReturningName: nil type: &fieldType fieldID: nil];
+      if (fieldType == TType_STOP) {
+        break;
+      }
+      [TProtocolUtil skipType: fieldType onProtocol: protocol];
+      [protocol readFieldEnd];
+    }
+    [protocol readStructEnd];
+    break;
+  case TType_MAP:
+  {
+    int keyType;
+    int valueType;
+    int size;
+    [protocol readMapBeginReturningKeyType: &keyType valueType: &valueType size: &size];
+    int i;
+    for (i = 0; i < size; i++) {
+      [TProtocolUtil skipType: keyType onProtocol: protocol];
+      [TProtocolUtil skipType: valueType onProtocol: protocol];
+    }
+    [protocol readMapEnd];
+  }
+    break;
+    case TType_SET:
+    {
+      int elemType;
+      int size;
+      [protocol readSetBeginReturningElementType: &elemType size: &size];
+      int i;
+      for (i = 0; i < size; i++) {
+        [TProtocolUtil skipType: elemType onProtocol: protocol];
+      }
+      [protocol readSetEnd];
+    }
+      break;
+    case TType_LIST:
+    {
+      int elemType;
+      int size;
+      [protocol readListBeginReturningElementType: &elemType size: &size];
+      int i;
+      for (i = 0; i < size; i++) {
+        [TProtocolUtil skipType: elemType onProtocol: protocol];
+      }
+      [protocol readListEnd];
+    }
+      break;
+    default:
+      return;
+  }
+}
+
+@end
diff --git a/lib/cocoa/src/server/TSocketServer.h b/lib/cocoa/src/server/TSocketServer.h
new file mode 100644
index 0000000..3d4a9e0
--- /dev/null
+++ b/lib/cocoa/src/server/TSocketServer.h
@@ -0,0 +1,40 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+#import <Cocoa/Cocoa.h>
+#import "TProtocolFactory.h"
+#import "TProcessor.h"
+
+
+@interface TSocketServer : NSObject {
+  NSSocketPort * mServerSocket;
+  NSFileHandle * mSocketFileHandle;
+  id <TProtocolFactory> mInputProtocolFactory;
+  id <TProtocolFactory> mOutputProtocolFactory;
+  id <TProcessor> mProcessor;
+}
+
+- (id) initWithPort: (int) port
+    protocolFactory: (id <TProtocolFactory>) protocolFactory
+          processor: (id <TProcessor>) processor;
+
+@end
+
+
+
diff --git a/lib/cocoa/src/server/TSocketServer.m b/lib/cocoa/src/server/TSocketServer.m
new file mode 100644
index 0000000..97d8bae
--- /dev/null
+++ b/lib/cocoa/src/server/TSocketServer.m
@@ -0,0 +1,114 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+#import <Cocoa/Cocoa.h>
+#import "TSocketServer.h"
+#import "TNSFileHandleTransport.h"
+#import "TProtocol.h"
+#import "TTransportException.h"
+
+
+@implementation TSocketServer
+
+- (id) initWithPort: (int) port
+    protocolFactory: (id <TProtocolFactory>) protocolFactory
+          processor: (id <TProcessor>) processor;
+{
+  self = [super init];
+
+  mInputProtocolFactory = [protocolFactory retain];
+  mOutputProtocolFactory = [protocolFactory retain];
+  mProcessor = [processor retain];
+
+  // create a socket
+  mServerSocket = [[NSSocketPort alloc] initWithTCPPort: port];
+  // FIXME - move this separate start method and add method to close
+  // and cleanup any open ports
+
+  if (mServerSocket == nil) {
+    NSLog(@"Unable to listen on TCP port %d", port);
+  } else {
+    NSLog(@"Listening on TCP port %d", port);
+
+    // wrap it in a file handle so we can get messages from it
+    mSocketFileHandle = [[NSFileHandle alloc] initWithFileDescriptor: [mServerSocket socket]
+                                                      closeOnDealloc: YES];
+
+    // register for notifications of accepted incoming connections
+    [[NSNotificationCenter defaultCenter] addObserver: self
+                                             selector: @selector(connectionAccepted:)
+                                                 name: NSFileHandleConnectionAcceptedNotification
+                                               object: mSocketFileHandle];
+
+    // tell socket to listen
+    [mSocketFileHandle acceptConnectionInBackgroundAndNotify];
+  }
+
+  return self;
+}
+
+
+- (void) dealloc {
+  [mInputProtocolFactory release];
+  [mOutputProtocolFactory release];
+  [mProcessor release];
+  [mSocketFileHandle release];
+  [mServerSocket release];
+  [super dealloc];
+}
+
+
+- (void) connectionAccepted: (NSNotification *) aNotification
+{
+  NSFileHandle * socket = [[aNotification userInfo] objectForKey: NSFileHandleNotificationFileHandleItem];
+
+  // now that we have a client connected, spin off a thread to handle activity
+  [NSThread detachNewThreadSelector: @selector(handleClientConnection:)
+                           toTarget: self
+                         withObject: socket];
+
+  [[aNotification object] acceptConnectionInBackgroundAndNotify];
+}
+
+
+- (void) handleClientConnection: (NSFileHandle *) clientSocket
+{
+  NSAutoreleasePool * pool = [[NSAutoreleasePool alloc] init];
+
+  TNSFileHandleTransport * transport = [[TNSFileHandleTransport alloc] initWithFileHandle: clientSocket];
+
+  id <TProtocol> inProtocol = [mInputProtocolFactory newProtocolOnTransport: transport];
+  id <TProtocol> outProtocol = [mOutputProtocolFactory newProtocolOnTransport: transport];
+
+  @try {
+    while ([mProcessor processOnInputProtocol: inProtocol outputProtocol: outProtocol]);
+  }
+  @catch (TTransportException * te) {
+    NSLog(@"%@", te);
+  }
+
+  [pool release];
+}
+
+
+
+@end
+
+
+
diff --git a/lib/cocoa/src/transport/THTTPClient.h b/lib/cocoa/src/transport/THTTPClient.h
new file mode 100644
index 0000000..86f3f05
--- /dev/null
+++ b/lib/cocoa/src/transport/THTTPClient.h
@@ -0,0 +1,42 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+#import <Cocoa/Cocoa.h>
+#import "TTransport.h"
+
+@interface THTTPClient : NSObject <TTransport> {
+  NSURL * mURL;
+  NSMutableURLRequest * mRequest;
+  NSMutableData * mRequestData;
+  NSData * mResponseData;
+  int mResponseDataOffset;
+  NSString * mUserAgent;
+  int mTimeout;
+}
+
+- (id) initWithURL: (NSURL *) aURL;
+
+- (id) initWithURL: (NSURL *) aURL
+         userAgent: (NSString *) userAgent
+           timeout: (int) timeout;
+
+- (void) setURL: (NSURL *) aURL;
+
+@end
+
diff --git a/lib/cocoa/src/transport/THTTPClient.m b/lib/cocoa/src/transport/THTTPClient.m
new file mode 100644
index 0000000..6391bea
--- /dev/null
+++ b/lib/cocoa/src/transport/THTTPClient.m
@@ -0,0 +1,159 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+#import "THTTPClient.h"
+#import "TTransportException.h"
+
+@implementation THTTPClient
+
+
+- (void) setupRequest
+{
+  if (mRequest != nil) {
+    [mRequest release];
+  }
+
+  // set up our request object that we'll use for each request
+  mRequest = [[NSMutableURLRequest alloc] initWithURL: mURL];
+  [mRequest setHTTPMethod: @"POST"];
+  [mRequest setValue: @"application/x-thrift" forHTTPHeaderField: @"Content-Type"];
+  [mRequest setValue: @"application/x-thrift" forHTTPHeaderField: @"Accept"];
+
+  NSString * userAgent = mUserAgent;
+  if (!userAgent) {
+    userAgent = @"Cocoa/THTTPClient";
+  }
+  [mRequest setValue: userAgent forHTTPHeaderField: @"User-Agent"];
+
+  [mRequest setCachePolicy: NSURLRequestReloadIgnoringCacheData];
+  if (mTimeout) {
+    [mRequest setTimeoutInterval: mTimeout];
+  }
+}
+
+
+- (id) initWithURL: (NSURL *) aURL
+{
+  return [self initWithURL: aURL
+                 userAgent: nil
+                   timeout: 0];
+}
+
+
+- (id) initWithURL: (NSURL *) aURL
+         userAgent: (NSString *) userAgent
+           timeout: (int) timeout
+{
+  self = [super init];
+  if (!self) {
+    return nil;
+  }
+
+  mTimeout = timeout;
+  if (userAgent) {
+    mUserAgent = [userAgent retain];
+  }
+  mURL = [aURL retain];
+
+  [self setupRequest];
+
+  // create our request data buffer
+  mRequestData = [[NSMutableData alloc] initWithCapacity: 1024];
+
+  return self;
+}
+
+
+- (void) setURL: (NSURL *) aURL
+{
+  [aURL retain];
+  [mURL release];
+  mURL = aURL;
+
+  [self setupRequest];
+}
+
+
+- (void) dealloc
+{
+  [mURL release];
+  [mUserAgent release];
+  [mRequest release];
+  [mRequestData release];
+  [mResponseData release];
+  [super dealloc];
+}
+
+
+- (int) readAll: (uint8_t *) buf offset: (int) off length: (int) len
+{
+  NSRange r;
+  r.location = mResponseDataOffset;
+  r.length = len;
+
+  [mResponseData getBytes: buf+off range: r];
+  mResponseDataOffset += len;
+
+  return len;
+}
+
+
+- (void) write: (const uint8_t *) data offset: (unsigned int) offset length: (unsigned int) length
+{
+  [mRequestData appendBytes: data+offset length: length];
+}
+
+
+- (void) flush
+{
+  [mRequest setHTTPBody: mRequestData]; // not sure if it copies the data
+
+  // make the HTTP request
+  NSURLResponse * response;
+  NSError * error;
+  NSData * responseData =
+    [NSURLConnection sendSynchronousRequest: mRequest returningResponse: &response error: &error];
+
+  [mRequestData setLength: 0];
+
+  if (responseData == nil) {
+    @throw [TTransportException exceptionWithName: @"TTransportException"
+                                reason: @"Could not make HTTP request"
+                                error: error];
+  }
+  if (![response isKindOfClass: [NSHTTPURLResponse class]]) {
+    @throw [TTransportException exceptionWithName: @"TTransportException"
+                                           reason: @"Unexpected NSURLResponse type"];
+  }
+
+  NSHTTPURLResponse * httpResponse = (NSHTTPURLResponse *) response;
+  if ([httpResponse statusCode] != 200) {
+    @throw [TTransportException exceptionWithName: @"TTransportException"
+                                           reason: [NSString stringWithFormat: @"Bad response from HTTP server: %d",
+                                                    [httpResponse statusCode]]];
+  }
+
+  // phew!
+  [mResponseData release];
+  mResponseData = [responseData retain];
+  mResponseDataOffset = 0;
+}
+
+
+@end
diff --git a/lib/cocoa/src/transport/TNSFileHandleTransport.h b/lib/cocoa/src/transport/TNSFileHandleTransport.h
new file mode 100644
index 0000000..64a6af3
--- /dev/null
+++ b/lib/cocoa/src/transport/TNSFileHandleTransport.h
@@ -0,0 +1,35 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+
+#import <Cocoa/Cocoa.h>
+#import "TTransport.h"
+
+@interface TNSFileHandleTransport : NSObject <TTransport> {
+  NSFileHandle * mInputFileHandle;
+  NSFileHandle * mOutputFileHandle;
+}
+
+- (id) initWithFileHandle: (NSFileHandle *) fileHandle;
+
+- (id) initWithInputFileHandle: (NSFileHandle *) inputFileHandle
+              outputFileHandle: (NSFileHandle *) outputFileHandle;
+
+
+@end
diff --git a/lib/cocoa/src/transport/TNSFileHandleTransport.m b/lib/cocoa/src/transport/TNSFileHandleTransport.m
new file mode 100644
index 0000000..1533934
--- /dev/null
+++ b/lib/cocoa/src/transport/TNSFileHandleTransport.m
@@ -0,0 +1,87 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+
+#import "TNSFileHandleTransport.h"
+#import "TTransportException.h"
+
+
+@implementation TNSFileHandleTransport
+
+- (id) initWithFileHandle: (NSFileHandle *) fileHandle
+{
+  return [self initWithInputFileHandle: fileHandle
+                      outputFileHandle: fileHandle];
+}
+
+
+- (id) initWithInputFileHandle: (NSFileHandle *) inputFileHandle
+              outputFileHandle: (NSFileHandle *) outputFileHandle
+{
+  self = [super init];
+
+  mInputFileHandle = [inputFileHandle retain];
+  mOutputFileHandle = [outputFileHandle retain];
+
+  return self;
+}
+
+
+- (void) dealloc {
+  [mInputFileHandle release];
+  [mOutputFileHandle release];
+  [super dealloc];
+}
+
+
+- (int) readAll: (uint8_t *) buf offset: (int) off length: (int) len
+{
+  int got = 0;
+  while (got < len) {
+    NSData * d = [mInputFileHandle readDataOfLength: len-got];
+    if ([d length] == 0) {
+      @throw [TTransportException exceptionWithName: @"TTransportException"
+                                  reason: @"Cannot read. No more data."];
+    }
+    [d getBytes: buf+got];
+    got += [d length];
+  }
+  return got;
+}
+
+
+- (void) write: (uint8_t *) data offset: (unsigned int) offset length: (unsigned int) length
+{
+  NSData * dataObject = [[NSData alloc] initWithBytesNoCopy: data+offset
+                                                     length: length
+                                               freeWhenDone: NO];
+
+  [mOutputFileHandle writeData: dataObject];
+
+
+  [dataObject release];
+}
+
+
+- (void) flush
+{
+
+}
+
+@end
diff --git a/lib/cocoa/src/transport/TNSStreamTransport.h b/lib/cocoa/src/transport/TNSStreamTransport.h
new file mode 100644
index 0000000..295a185
--- /dev/null
+++ b/lib/cocoa/src/transport/TNSStreamTransport.h
@@ -0,0 +1,38 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+#import <Cocoa/Cocoa.h>
+#import "TTransport.h"
+
+@interface TNSStreamTransport : NSObject <TTransport> {
+  NSInputStream * mInput;
+  NSOutputStream * mOutput;
+}
+
+- (id) initWithInputStream: (NSInputStream *) input
+              outputStream: (NSOutputStream *) output;
+
+- (id) initWithInputStream: (NSInputStream *) input;
+
+- (id) initWithOutputStream: (NSOutputStream *) output;
+
+@end
+
+
+
diff --git a/lib/cocoa/src/transport/TNSStreamTransport.m b/lib/cocoa/src/transport/TNSStreamTransport.m
new file mode 100644
index 0000000..52a02e2
--- /dev/null
+++ b/lib/cocoa/src/transport/TNSStreamTransport.m
@@ -0,0 +1,87 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+#import "TNSStreamTransport.h"
+#import "TTransportException.h"
+
+
+@implementation TNSStreamTransport
+
+- (id) initWithInputStream: (NSInputStream *) input
+              outputStream: (NSOutputStream *) output
+{
+  [super init];
+  mInput = [input retain];
+  mOutput = [output retain];
+  return self;
+}
+
+- (id) initWithInputStream: (NSInputStream *) input
+{
+  return [self initWithInputStream: input outputStream: nil];
+}
+
+- (id) initWithOutputStream: (NSOutputStream *) output
+{
+  return [self initWithInputStream: nil outputStream: output];
+}
+
+- (void) dealloc
+{
+  [mInput release];
+  [mOutput release];
+  [super dealloc];
+}
+
+
+- (int) readAll: (uint8_t *) buf offset: (int) off length: (int) len
+{
+  int got = 0;
+  int ret = 0;
+  while (got < len) {
+    ret = [mInput read: buf+off+got maxLength: len-got];
+    if (ret <= 0) {
+      @throw [TTransportException exceptionWithReason: @"Cannot read. Remote side has closed."];
+    }
+    got += ret;
+  }
+  return got;
+}
+
+
+// FIXME:geech:20071019 - make this write all
+- (void) write: (uint8_t *) data offset: (unsigned int) offset length: (unsigned int) length
+{
+  int result = [mOutput write: data+offset maxLength: length];
+  if (result == -1) {
+    @throw [TTransportException exceptionWithReason: @"Error writing to transport output stream."
+                                              error: [mOutput streamError]];
+  } else if (result == 0) {
+    @throw [TTransportException exceptionWithReason: @"End of output stream."];
+  } else if (result != length) {
+    @throw [TTransportException exceptionWithReason: @"Output stream did not write all of our data."];
+  }
+}
+
+- (void) flush
+{
+  // no flush for you!
+}
+
+@end
diff --git a/lib/cocoa/src/transport/TSocketClient.h b/lib/cocoa/src/transport/TSocketClient.h
new file mode 100644
index 0000000..a883acb
--- /dev/null
+++ b/lib/cocoa/src/transport/TSocketClient.h
@@ -0,0 +1,32 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+#import <Cocoa/Cocoa.h>
+#import "TNSStreamTransport.h"
+
+@interface TSocketClient : TNSStreamTransport {
+}
+
+- (id) initWithHostname: (NSString *) hostname
+                   port: (int) port;
+
+@end
+
+
+
diff --git a/lib/cocoa/src/transport/TSocketClient.m b/lib/cocoa/src/transport/TSocketClient.m
new file mode 100644
index 0000000..7c07c56
--- /dev/null
+++ b/lib/cocoa/src/transport/TSocketClient.m
@@ -0,0 +1,47 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+#import <Cocoa/Cocoa.h>
+#import "TSocketClient.h"
+
+@implementation TSocketClient
+
+- (id) initWithHostname: (NSString *) hostname
+                   port: (int) port
+{
+  NSInputStream * input = nil;
+  NSOutputStream * output = nil;
+
+  [NSStream getStreamsToHost: [NSHost hostWithName: hostname]
+            port: port
+            inputStream: &input
+            outputStream: &output];
+
+  self = [super initWithInputStream: input outputStream: output];
+  [input open];
+  [output open];
+
+  return self;
+}
+
+
+@end
+
+
+
diff --git a/lib/cocoa/src/transport/TTransport.h b/lib/cocoa/src/transport/TTransport.h
new file mode 100644
index 0000000..61ebbd2
--- /dev/null
+++ b/lib/cocoa/src/transport/TTransport.h
@@ -0,0 +1,36 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+@protocol TTransport <NSObject>
+
+  /**
+   * Guarantees that all of len bytes are read
+   *
+   * @param buf Buffer to read into
+   * @param off Index in buffer to start storing bytes at
+   * @param len Maximum number of bytes to read
+   * @return The number of bytes actually read, which must be equal to len
+   * @throws TTransportException if there was an error reading data
+   */
+- (int) readAll: (uint8_t *) buf offset: (int) off length: (int) len;
+
+- (void) write: (const uint8_t *) data offset: (unsigned int) offset length: (unsigned int) length;
+
+- (void) flush;
+@end
diff --git a/lib/cocoa/src/transport/TTransportException.h b/lib/cocoa/src/transport/TTransportException.h
new file mode 100644
index 0000000..6749fe2
--- /dev/null
+++ b/lib/cocoa/src/transport/TTransportException.h
@@ -0,0 +1,30 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+#import "TException.h"
+
+@interface TTransportException : TException {
+}
+
++ (id) exceptionWithReason: (NSString *) reason
+                     error: (NSError *) error;
+
++ (id) exceptionWithReason: (NSString *) reason;
+
+@end
diff --git a/lib/cocoa/src/transport/TTransportException.m b/lib/cocoa/src/transport/TTransportException.m
new file mode 100644
index 0000000..aa67149
--- /dev/null
+++ b/lib/cocoa/src/transport/TTransportException.m
@@ -0,0 +1,43 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+#import "TTransportException.h"
+
+@implementation TTransportException
+
++ (id) exceptionWithReason: (NSString *) reason
+                     error: (NSError *) error
+{
+  NSDictionary * userInfo = nil;
+  if (error != nil) {
+    userInfo = [NSDictionary dictionaryWithObject: error forKey: @"error"];
+  }
+
+  return [super exceptionWithName: @"TTransportException"
+                           reason: reason
+                         userInfo: userInfo];
+}
+
+
++ (id) exceptionWithReason: (NSString *) reason
+{
+  return [self exceptionWithReason: reason error: nil];
+}
+
+@end