/**
* Debug Helper!!!!
*
* <p>I'm leaving this message here without any callers for a reason: During debugs it's important
* eventually to identify what's on the bodies, and this method will give you a good idea about
* them. Add the message.bodyToString() to the Watch variables on the debugger view and this will
* show up like a charm!!!
*
* @return
*/
public String bodyToString() {
getEndOfBodyPosition();
int readerIndex1 = this.buffer.readerIndex();
buffer.readerIndex(0);
byte[] buffer1 = new byte[buffer.writerIndex()];
buffer.readBytes(buffer1);
buffer.readerIndex(readerIndex1);
byte[] buffer2 = null;
if (bodyBuffer != null) {
int readerIndex2 = this.bodyBuffer.readerIndex();
bodyBuffer.readerIndex(0);
buffer2 = new byte[bodyBuffer.writerIndex() - bodyBuffer.readerIndex()];
bodyBuffer.readBytes(buffer2);
bodyBuffer.readerIndex(readerIndex2);
}
return "ServerMessage@"
+ Integer.toHexString(System.identityHashCode(this))
+ "["
+ ",bodyStart="
+ getEndOfBodyPosition()
+ " buffer="
+ ByteUtil.bytesToHex(buffer1, 1)
+ ", bodyBuffer="
+ ByteUtil.bytesToHex(buffer2, 1);
}
private void decode() {
endOfBodyPosition = buffer.getInt(BUFFER_HEADER_SPACE);
buffer.readerIndex(endOfBodyPosition + DataConstants.SIZE_INT);
decodeHeadersAndProperties(buffer);
endOfMessagePosition = buffer.readerIndex();
bufferValid = true;
}
@Override
public void decodeRest(final HornetQBuffer buffer) {
// Buffer comes in after having read standard headers and positioned at Beginning of body part
message.decodeFromBuffer(buffer);
int ri = buffer.readerIndex();
requiresResponse = buffer.readBoolean();
buffer.readerIndex(ri);
}
public static void assertEqualsBuffers(
final int size, final HornetQBuffer expected, final HornetQBuffer actual) {
// assertEquals(expected.length, actual.length);
expected.readerIndex(0);
actual.readerIndex(0);
for (int i = 0; i < size; i++) {
byte b1 = expected.readByte();
byte b2 = actual.readByte();
Assert.assertEquals("byte at index " + i, b1, b2);
}
expected.resetReaderIndex();
actual.resetReaderIndex();
}
public void decode(final HornetQBuffer buffer) {
channelID = buffer.readLong();
decodeRest(buffer);
size = buffer.readerIndex();
}
@Override
public HornetQBuffer encode(final RemotingConnection connection) {
HornetQBuffer buffer = message.getEncodedBuffer();
// Sanity check
if (buffer.writerIndex() != message.getEndOfMessagePosition()) {
throw new IllegalStateException("Wrong encode position");
}
buffer.writeBoolean(requiresResponse);
size = buffer.writerIndex();
// Write standard headers
int len = size - DataConstants.SIZE_INT;
buffer.setInt(0, len);
buffer.setByte(DataConstants.SIZE_INT, getType());
buffer.setLong(DataConstants.SIZE_INT + DataConstants.SIZE_BYTE, channelID);
// Position reader for reading by Netty
buffer.readerIndex(0);
message.resetCopied();
return buffer;
}
// Decode from journal or paging
public void decode(final HornetQBuffer buff) {
int start = buff.readerIndex();
endOfBodyPosition = buff.readInt();
endOfMessagePosition = buff.getInt(endOfBodyPosition - BUFFER_HEADER_SPACE + start);
int length = endOfMessagePosition - BUFFER_HEADER_SPACE;
buffer.setIndex(0, BUFFER_HEADER_SPACE);
buffer.writeBytes(buff, start, length);
decode();
buff.readerIndex(start + length);
}
public synchronized List<PagedMessage> read(StorageManager storage) throws Exception {
if (isDebug) {
HornetQServerLogger.LOGGER.debug(
"reading page " + this.pageId + " on address = " + storeName);
}
if (!file.isOpen()) {
throw HornetQMessageBundle.BUNDLE.invalidPageIO();
}
ArrayList<PagedMessage> messages = new ArrayList<PagedMessage>();
size.set((int) file.size());
// Using direct buffer, as described on https://jira.jboss.org/browse/HORNETQ-467
ByteBuffer directBuffer = storage.allocateDirectBuffer((int) file.size());
try {
file.position(0);
file.read(directBuffer);
directBuffer.rewind();
HornetQBuffer fileBuffer = HornetQBuffers.wrappedBuffer(directBuffer);
fileBuffer.writerIndex(fileBuffer.capacity());
while (fileBuffer.readable()) {
final int position = fileBuffer.readerIndex();
byte byteRead = fileBuffer.readByte();
if (byteRead == Page.START_BYTE) {
if (fileBuffer.readerIndex() + DataConstants.SIZE_INT < fileBuffer.capacity()) {
int messageSize = fileBuffer.readInt();
int oldPos = fileBuffer.readerIndex();
if (fileBuffer.readerIndex() + messageSize < fileBuffer.capacity()
&& fileBuffer.getByte(oldPos + messageSize) == Page.END_BYTE) {
PagedMessage msg = new PagedMessageImpl();
msg.decode(fileBuffer);
byte b = fileBuffer.readByte();
if (b != Page.END_BYTE) {
// Sanity Check: This would only happen if there is a bug on decode or any internal
// code, as
// this
// constraint was already checked
throw new IllegalStateException(
"Internal error, it wasn't possible to locate END_BYTE " + b);
}
msg.initMessage(storage);
if (isTrace) {
HornetQServerLogger.LOGGER.trace(
"Reading message "
+ msg
+ " on pageId="
+ this.pageId
+ " for address="
+ storeName);
}
messages.add(msg);
} else {
markFileAsSuspect(file.getFileName(), position, messages.size());
break;
}
}
} else {
markFileAsSuspect(file.getFileName(), position, messages.size());
break;
}
}
} finally {
storage.freeDirectBuffer(directBuffer);
}
numberOfMessages.set(messages.size());
return messages;
}
