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30 day Evaluation Version distributed via the Maven Jar Repository. Clover is not free. You have 30 days to evaluate it. Please visit http://www.thecortex.net/clover to obtain a licensed version of Clover | |||||||||||||||||||
Source file | Conditionals | Statements | Methods | TOTAL | |||||||||||||||
AsynchToSynchChannelAdapter.java | 64.3% | 67.5% | 73.3% | 68.1% |
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/**
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*
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* Copyright 2004 Hiram Chirino
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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**/
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package org.activeio.adapter;
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import java.io.IOException;
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import java.io.InterruptedIOException;
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import org.activeio.AsynchChannel;
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import org.activeio.AsynchChannelListener;
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import org.activeio.Packet;
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import org.activeio.SynchChannel;
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import EDU.oswego.cs.dl.util.concurrent.Channel;
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import EDU.oswego.cs.dl.util.concurrent.LinkedQueue;
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/**
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* Adapts a {@see org.activeio.AsynchChannel} so that it provides an
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* {@see org.activeio.SynchChannel} interface.
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*
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* This object buffers asynchronous messages from the {@see org.activeio.AsynchChannel}
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* and buffers them in a {@see EDU.oswego.cs.dl.util.concurrent.Channel} util the client receives them.
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*
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* @version $Revision$
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*/
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final public class AsynchToSynchChannelAdapter implements SynchChannel, AsynchChannelListener { |
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private final AsynchChannel asynchChannel;
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private final Channel buffer;
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static public SynchChannel adapt(org.activeio.Channel channel) { |
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return adapt(channel, new LinkedQueue()); |
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} |
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static public SynchChannel adapt(org.activeio.Channel channel, Channel upPacketChannel) { |
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// It might not need adapting
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if( channel instanceof SynchChannel ) { |
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return (SynchChannel) channel;
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} |
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// Can we just just undo the adaptor
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if( channel.getClass() == SynchToAsynchChannelAdapter.class ) { |
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return ((SynchToAsynchChannelAdapter)channel).getSynchChannel();
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} |
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return new AsynchToSynchChannelAdapter((AsynchChannel)channel, upPacketChannel); |
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} |
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/**
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* @deprecated {@see #adapt(AsynchChannel)}
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*/
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public AsynchToSynchChannelAdapter(AsynchChannel asynchChannel) {
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this(asynchChannel, new LinkedQueue()); |
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} |
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/**
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* @deprecated {@see #adapt(AsynchChannel, Channel)}
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*/
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public AsynchToSynchChannelAdapter(AsynchChannel asynchChannel, Channel upPacketChannel){
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this.asynchChannel = asynchChannel;
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this.asynchChannel.setAsynchChannelListener(this); |
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this.buffer=upPacketChannel;
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} |
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/**
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* @see org.activeio.Channel#write(org.activeio.channel.Packet)
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*/
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public void write(org.activeio.Packet packet) throws IOException { |
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asynchChannel.write(packet); |
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} |
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/**
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* @see org.activeio.Channel#flush()
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*/
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public void flush() throws IOException { |
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asynchChannel.flush(); |
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} |
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/**
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* @see org.activeio.SynchChannel#read(long)
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*/
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public Packet read(long timeout) throws IOException { |
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try {
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Object o; |
101 | 6020 |
if( timeout == NO_WAIT_TIMEOUT ) {
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o = buffer.poll(0); |
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} else if( timeout == WAIT_FOREVER_TIMEOUT ) { |
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o = buffer.take(); |
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} else {
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o = buffer.poll(timeout); |
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} |
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if( o == null ) |
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return null; |
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if( o instanceof Packet ) |
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return (Packet)o;
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Throwable e = (Throwable)o; |
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throw (IOException)new IOException("Asynch error occured: "+e).initCause(e); |
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} catch (InterruptedException e) {
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throw new InterruptedIOException(e.getMessage()); |
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} |
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} |
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/**
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* @see org.activeio.Disposable#dispose()
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*/
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public void dispose() { |
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asynchChannel.dispose(); |
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} |
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/**
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* @see org.activeio.Service#start()
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*/
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public void start() throws IOException { |
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asynchChannel.start(); |
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} |
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/**
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* @see org.activeio.Service#stop(long)
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*/
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public void stop(long timeout) throws IOException { |
141 | 0 |
asynchChannel.stop(timeout); |
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} |
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/**
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* @see org.activeio.AsynchChannelListener#onPacket(org.activeio.channel.Packet)
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*/
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public void onPacket(Packet packet) { |
148 | 6028 |
try {
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buffer.put(packet); |
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} catch (InterruptedException e) {
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Thread.currentThread().interrupt(); |
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} |
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} |
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/**
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* @see org.activeio.AsynchChannelListener#onPacketError(org.activeio.channel.ChannelException)
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*/
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158 | 38 |
public void onPacketError(IOException error) { |
159 | 38 |
try {
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buffer.put(error); |
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} catch (InterruptedException e) {
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Thread.currentThread().interrupt(); |
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} |
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} |
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166 | 40 |
public Object narrow(Class target) {
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167 | 40 |
if( target.isAssignableFrom(getClass()) ) {
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return this; |
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} |
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return asynchChannel.narrow(target);
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} |
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public AsynchChannel getAsynchChannel() {
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return asynchChannel;
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} |
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public String toString() {
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return asynchChannel.toString();
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} |
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} |
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