/*
* Copyright 2003,2004,2005 Colin Crist
*
* 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 hermes.renderers;
import hermes.swing.MyTextArea;
import hermes.util.DumpUtils;
import hermes.util.MessageUtils;
import java.awt.Font;
import javax.jms.BytesMessage;
import javax.jms.Message;
import javax.swing.JComponent;
import javax.swing.JScrollPane;
import javax.swing.JTextArea;
import org.apache.log4j.Logger;
/**
* A renderer that converts the message into hex for viewing.
*
* @author colincrist@hermesjms.com
* @version $Id: HexMessageRenderer.java,v 1.3 2007/02/18 16:13:41 colincrist
* Exp $
*/
public class HexMessageRenderer extends AbstractMessageRenderer {
private static final Logger log = Logger.getLogger(HexMessageRenderer.class);
public HexMessageRenderer() {
super();
}
@Override
public JComponent render(JScrollPane parent, Message m) {
final JTextArea textArea = new MyTextArea();
textArea.setEditable(false);
textArea.setFont(Font.decode("Monospaced-PLAIN-12"));
byte[] bytes = null;
try {
bytes = MessageUtils.asBytes(m);
textArea.setText(DumpUtils.dumpBinary(bytes, DumpUtils.DUMP_AS_HEX_AND_ALPHA));
} catch (Throwable e) {
textArea.setText(e.getMessage());
log.error("exception converting message to byte[]: ", e);
}
textArea.setCaretPosition(0);
return textArea;
}
/**
* BytesMessages are handled by the DefaultMessageRenderer so no point in
* doing it twice.
*/
@Override
public boolean canRender(Message message) {
return !(message instanceof BytesMessage);
}
@Override
public String getDisplayName() {
return "Hex";
}
}