mq5.0-source.main.mq-client.src.main.java.com.sun.messaging.jmq.jmsclient.protocol.SocketConnectionHandler Maven / Gradle / Ivy
/*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
*
* Copyright (c) 2012 Oracle and/or its affiliates. All rights reserved.
*
* The contents of this file are subject to the terms of either the GNU
* General Public License Version 2 only ("GPL") or the Common Development
* and Distribution License("CDDL") (collectively, the "License"). You
* may not use this file except in compliance with the License. You can
* obtain a copy of the License at
* https://glassfish.dev.java.net/public/CDDL+GPL_1_1.html
* or packager/legal/LICENSE.txt. See the License for the specific
* language governing permissions and limitations under the License.
*
* When distributing the software, include this License Header Notice in each
* file and include the License file at packager/legal/LICENSE.txt.
*
* GPL Classpath Exception:
* Oracle designates this particular file as subject to the "Classpath"
* exception as provided by Oracle in the GPL Version 2 section of the License
* file that accompanied this code.
*
* Modifications:
* If applicable, add the following below the License Header, with the fields
* enclosed by brackets [] replaced by your own identifying information:
* "Portions Copyright [year] [name of copyright owner]"
*
* Contributor(s):
* If you wish your version of this file to be governed by only the CDDL or
* only the GPL Version 2, indicate your decision by adding "[Contributor]
* elects to include this software in this distribution under the [CDDL or GPL
* Version 2] license." If you don't indicate a single choice of license, a
* recipient has the option to distribute your version of this file under
* either the CDDL, the GPL Version 2 or to extend the choice of license to
* its licensees as provided above. However, if you add GPL Version 2 code
* and therefore, elected the GPL Version 2 license, then the option applies
* only if the new code is made subject to such option by the copyright
* holder.
*/
package com.sun.messaging.jmq.jmsclient.protocol;
import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.util.Properties;
import com.sun.messaging.jmq.io.ReadWritePacket;
import com.sun.messaging.jmq.jmsclient.ConnectionHandler;
import com.sun.messaging.jmq.jmsclient.Debug;
public abstract class SocketConnectionHandler implements ConnectionHandler {
//default buffer size - String for use with system property.
private static String defaultBufferSize = "2048";
private boolean debug = Debug.debug;
private InputStream is = null;
private OutputStream os = null;
protected abstract void closeSocket() throws IOException ;
public boolean isDirectMode(){
return false;
}
public ReadWritePacket readPacket () throws IOException {
ReadWritePacket pkt = new ReadWritePacket();
pkt.readPacket(is);
return pkt;
}
public void writePacket (ReadWritePacket pkt) throws IOException {
pkt.writePacket(os);
}
public void configure(Properties configuration) throws IOException {
//for output stream
String prop = getProperty(configuration,"imqOutputBuffer", "true");
if (prop.equals("true")) {
String bufsize = getProperty(configuration,"imqOutputBufferSize", defaultBufferSize);
int outSize = Integer.parseInt(bufsize);
os = new BufferedOutputStream (getOutputStream(), outSize);
if (debug) {
Debug.println("buffered output stream, buffer size: " + outSize);
}
} else {
os = getOutputStream();
}
//for input stream
prop = getProperty(configuration,"imqInputBuffer", "true");
if (prop.equals("true")) {
String bufsize = getProperty(configuration,"imqInputBufferSize",
"2048");
int inSize = Integer.parseInt(bufsize);
is = new BufferedInputStream (getInputStream(), inSize);
if (debug) {
Debug.println("buffered input stream, buffer size: " + inSize);
}
} else {
is = getInputStream();
}
}
/**
* Returns a configuration property.
* Uses a System property if non-existant and a default if
* the System property doesn't exist.
*
* @param propname The key with which to retreive the property value.
* @param propdefault The default value to be returned.
*
* @return The property value of the property key propname
* If the key propname does not exist, then if a System
* property named propname exists, return that, otherwise
* return the value propdefault.
*/
private String getProperty(Properties configuration, String propname, String propdefault) {
String propval = (String)configuration.get(propname);
if (propval == null) {
propval = System.getProperty(propname) ;
}
return (propval == null ? propdefault : propval);
}
public void close() throws IOException {
getInputStream().close();
is.close();
os.close();
closeSocket();
}
}