/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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 org.apache.sling.ide.eclipse.ui.internal.console;
import java.io.IOException;
import java.io.PrintStream;
import java.text.DateFormat;
import java.util.Collections;
import java.util.Date;
import java.util.Iterator;
import java.util.LinkedHashMap;
import java.util.Set;
import org.apache.commons.io.IOUtils;
import org.apache.sling.ide.eclipse.ui.console.SlingConsoleFactory;
import org.apache.sling.ide.eclipse.ui.internal.Activator;
import org.apache.sling.ide.transport.CommandExecutionProperties;
import org.eclipse.ui.console.ConsolePlugin;
import org.eclipse.ui.console.IConsole;
import org.eclipse.ui.console.IConsoleListener;
import org.eclipse.ui.console.IConsoleManager;
import org.eclipse.ui.console.MessageConsole;
import org.eclipse.ui.console.MessageConsoleStream;
import org.osgi.service.event.Event;
import org.osgi.service.event.EventHandler;
public class SlingConsoleEventListener implements EventHandler {
private final Object sync = new Object();
private final Set<Event> delayedEvents = Collections.newSetFromMap(new LinkedHashMap<Event, Boolean>() {
private static final long serialVersionUID = 1L;
protected boolean removeEldestEntry(java.util.Map.Entry<Event, Boolean> eldest) {
return size() >= 500;
};
});
private MessageConsole slingConsole;
private IConsoleListener listener;
@Override
public void handleEvent(Event event) {
synchronized (sync) {
initSlingConsole();
if (slingConsole != null) {
logEvent(event, slingConsole);
return;
}
delayedEvents.add(event);
final IConsoleManager consoleManager = ConsolePlugin.getDefault().getConsoleManager();
if (listener == null) {
listener = new IConsoleListener() {
@Override
public void consolesRemoved(IConsole[] consoles) {
synchronized (sync) {
for (IConsole console : consoles) {
if (console.equals(slingConsole)) {
slingConsole = null;
}
}
}
}
@Override
public void consolesAdded(IConsole[] consoles) {
synchronized (sync) {
for (IConsole console : consoles) {
if (console.getType().equals(SlingConsoleFactory.CONSOLE_TYPE_SLING)) {
slingConsole = (MessageConsole) console;
synchronized (delayedEvents) {
for (Iterator<Event> it = delayedEvents.iterator(); it.hasNext();) {
logEvent(it.next(), slingConsole);
it.remove();
}
}
consoleManager.removeConsoleListener(listener);
listener = null;
break;
}
}
}
}
};
consoleManager.addConsoleListener(listener);
}
}
}
private void initSlingConsole() {
if (slingConsole == null) {
final IConsoleManager consoleManager = ConsolePlugin.getDefault().getConsoleManager();
for (IConsole console : consoleManager.getConsoles()) {
if (console.getType().equals(SlingConsoleFactory.CONSOLE_TYPE_SLING)) {
slingConsole = (MessageConsole) console;
break;
}
}
}
}
private void logEvent(Event event, MessageConsole console) {
MessageConsoleStream messageStream = console.newMessageStream();
try {
Long start = (Long) event.getProperty(CommandExecutionProperties.TIMESTAMP_START);
Long end = (Long) event.getProperty(CommandExecutionProperties.TIMESTAMP_END);
String type = (String) event.getProperty(CommandExecutionProperties.ACTION_TYPE);
String target = (String) event.getProperty(CommandExecutionProperties.ACTION_TARGET);
String result = (String) event.getProperty(CommandExecutionProperties.RESULT_TEXT);
Throwable t = (Throwable) event.getProperty(CommandExecutionProperties.RESULT_THROWABLE);
StringBuilder message = new StringBuilder();
DateFormat format = DateFormat.getDateTimeInstance(DateFormat.LONG, DateFormat.LONG);
message.append("[").append(format.format(new Date(start))).append("] ").append(type).append(" -> ")
.append(target);
message.append(" : ").append(result).append(" (").append(end - start).append(" ms)").append('\n');
messageStream.write(message.toString());
if (t != null) {
t.printStackTrace(new PrintStream(messageStream));
}
} catch (IOException e) {
Activator.getDefault().getPluginLogger().warn("Failed writing to the console", e);
} finally {
IOUtils.closeQuietly(messageStream);
}
}
}