private CompositeBuffer toCompositeInputContentBuffer() {
if (!inputContentBuffer.isComposite()) {
final CompositeBuffer compositeBuffer =
CompositeBuffer.newBuffer(connection.getMemoryManager());
compositeBuffer.allowBufferDispose(true);
compositeBuffer.allowInternalBuffersDispose(true);
int posAlign = 0;
if (readAheadLimit > 0) { // the simple inputContentBuffer is marked
// make the marked data still available
inputContentBuffer.position(inputContentBuffer.position() - readCount);
posAlign = readCount;
markPos = 0; // for the CompositeBuffer markPos is 0
}
compositeBuffer.append(inputContentBuffer);
compositeBuffer.position(posAlign);
inputContentBuffer = compositeBuffer;
}
return (CompositeBuffer) inputContentBuffer;
}
private static Buffer appendContentChunkAndTrim(
final MemoryManager memoryManager, final Buffer dstBuffer, final Buffer httpContentBuffer) {
final boolean useDstBufferForHeaders =
dstBuffer != null && dstBuffer.remaining() >= BODY_CHUNK_HEADER_SIZE;
final Buffer headerBuffer;
if (useDstBufferForHeaders) {
headerBuffer = dstBuffer;
} else {
if (dstBuffer != null) {
dstBuffer.trim();
}
headerBuffer = memoryManager.allocate(BODY_CHUNK_HEADER_SIZE);
headerBuffer.allowBufferDispose(true);
}
headerBuffer.put((byte) 'A');
headerBuffer.put((byte) 'B');
headerBuffer.putShort((short) (4 + httpContentBuffer.remaining()));
headerBuffer.put(AjpConstants.JK_AJP13_SEND_BODY_CHUNK);
headerBuffer.putShort((short) httpContentBuffer.remaining());
headerBuffer.trim();
Buffer resultBuffer = Buffers.appendBuffers(memoryManager, headerBuffer, httpContentBuffer);
// Add terminating \0
final Buffer terminatingBuffer = memoryManager.allocate(1);
terminatingBuffer.allowBufferDispose(true);
resultBuffer = Buffers.appendBuffers(memoryManager, resultBuffer, terminatingBuffer);
if (!useDstBufferForHeaders && dstBuffer != null) {
resultBuffer = Buffers.appendBuffers(memoryManager, dstBuffer, resultBuffer);
}
if (resultBuffer.isComposite()) {
// If during buffer appending - composite buffer was created -
// allow buffer disposing
((CompositeBuffer) resultBuffer).allowInternalBuffersDispose(true);
}
return resultBuffer;
}