/*
* Copyright (c) 2008-2013, Hazelcast, Inc. All Rights Reserved.
*
* Licensed 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.
*/
package com.hazelcast.client.connection.nio;
import com.hazelcast.nio.ClientPacket;
import com.hazelcast.nio.IOSelector;
import com.hazelcast.util.Clock;
import java.io.EOFException;
import java.io.IOException;
import java.nio.ByteBuffer;
import java.nio.channels.SelectionKey;
public class ClientReadHandler extends ClientAbstractSelectionHandler {
private final ByteBuffer buffer;
private volatile long lastHandle;
private ClientPacket packet = null;
public ClientReadHandler(ClientConnection connection, IOSelector ioSelector, int bufferSize) {
super(connection, ioSelector);
buffer = ByteBuffer.allocate(bufferSize);
}
@Override
public void run() {
registerOp(SelectionKey.OP_READ);
}
@Override
public void handle() {
lastHandle = Clock.currentTimeMillis();
if (!connection.live()) {
if (logger.isFinestEnabled()) {
String message = "We are being asked to read, but connection is not live so we won't";
logger.finest( message);
}
return;
}
try {
int readBytes = socketChannel.read(buffer);
if (readBytes == -1) {
throw new EOFException("Remote socket closed!");
}
} catch (IOException e) {
handleSocketException(e);
return;
}
try {
if (buffer.position() == 0) return;
buffer.flip();
while (buffer.hasRemaining()) {
if (packet == null) {
packet = new ClientPacket(connection.getConnectionManager().getSerializationContext());
}
boolean complete = packet.readFrom(buffer);
if (complete) {
packet.setConn(connection);
connectionManager.handlePacket(packet);
packet = null;
} else {
break;
}
}
if (buffer.hasRemaining()) {
buffer.compact();
} else {
buffer.clear();
}
} catch (Throwable t) {
handleSocketException(t);
}
}
long getLastHandle() {
return lastHandle;
}
}