/*
* 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.nio.ascii;
import com.hazelcast.ascii.TextCommand;
import com.hazelcast.nio.tcp.SocketWriter;
import com.hazelcast.nio.tcp.TcpIpConnection;
import java.nio.ByteBuffer;
import java.util.Map;
import java.util.concurrent.ConcurrentHashMap;
public class SocketTextWriter implements SocketWriter<TextCommand> {
private final TcpIpConnection connection;
private final Map<Long, TextCommand> responses = new ConcurrentHashMap<Long, TextCommand>(100);
private long currentRequestId;
public SocketTextWriter(TcpIpConnection connection) {
this.connection = connection;
}
public void enqueue(TextCommand response) {
long requestId = response.getRequestId();
if (requestId == -1) {
connection.write(response);
} else {
if (currentRequestId == requestId) {
connection.write(response);
currentRequestId++;
processWaitingResponses();
} else {
responses.put(requestId, response);
}
}
}
private void processWaitingResponses() {
TextCommand response = responses.remove(currentRequestId);
while (response != null) {
connection.write(response);
currentRequestId++;
response = responses.remove(currentRequestId);
}
}
public boolean write(TextCommand socketWritable, ByteBuffer socketBuffer) throws Exception {
return socketWritable.writeTo(socketBuffer);
}
}