/*
* JBoss, Home of Professional Open Source.
* Copyright 2010, Red Hat, Inc., and individual contributors
* as indicated by the @author tags. See the copyright.txt file in the
* distribution for a full listing of individual contributors.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.jboss.as.logging;
import org.jboss.logmanager.handlers.AsyncHandler;
import org.jboss.logmanager.handlers.AsyncHandler.OverflowAction;
import org.jboss.msc.service.StartContext;
import org.jboss.msc.service.StartException;
import org.jboss.msc.service.StopContext;
import org.jboss.msc.value.InjectedValue;
import java.io.UnsupportedEncodingException;
import java.util.ArrayList;
import java.util.List;
import java.util.logging.Filter;
import java.util.logging.Handler;
import java.util.logging.Level;
/**
* @author <a href="mailto:david.lloyd@redhat.com">David M. Lloyd</a>
*/
public final class AsyncHandlerService implements HandlerService {
private final List<InjectedValue<Handler>> subhandlers = new ArrayList<InjectedValue<Handler>>();
private OverflowAction overflowAction;
private int queueLength;
private AsyncHandler value;
private Level level;
private Filter filter;
private AbstractFormatterSpec formatterSpec;
private String encoding;
private boolean autoflush;
public synchronized void start(final StartContext context) throws StartException {
final AsyncHandler handler = new AsyncHandler(queueLength);
value = handler;
formatterSpec.apply(handler);
handler.setOverflowAction(overflowAction);
handler.setAutoFlush(autoflush);
if (filter != null) handler.setFilter(filter);
try {
handler.setEncoding(encoding);
} catch (UnsupportedEncodingException e) {
throw new StartException(e);
}
Handler[] handlers = new Handler[subhandlers.size()];
for (int i = 0, subhandlersSize = subhandlers.size(); i < subhandlersSize; i++) {
handlers[i] = subhandlers.get(i).getValue();
}
handler.setHandlers(handlers);
if (level != null) handler.setLevel(level);
}
public synchronized void stop(final StopContext context) {
final AsyncHandler handler = value;
handler.close();
handler.setLevel(Level.OFF);
handler.clearHandlers();
value = null;
}
public synchronized Handler getValue() throws IllegalStateException {
return value;
}
public synchronized void setOverflowAction(final OverflowAction overflowAction) {
this.overflowAction = overflowAction;
final AsyncHandler handler = value;
if (handler != null) {
handler.setOverflowAction(overflowAction);
}
}
public synchronized void setQueueLength(final int queueLength) {
this.queueLength = queueLength;
}
public synchronized void setLevel(final Level level) {
this.level = level;
final AsyncHandler handler = value;
if (handler != null) {
handler.setLevel(level);
}
}
@Override
public synchronized void setEncoding(final String encoding) throws UnsupportedEncodingException {
this.encoding = encoding;
final AsyncHandler handler = value;
if (handler != null) {
handler.setEncoding(encoding);
}
}
@Override
public synchronized void setFormatterSpec(final AbstractFormatterSpec formatterSpec) {
this.formatterSpec = formatterSpec;
final AsyncHandler handler = value;
if (handler != null) {
formatterSpec.apply(handler);
}
}
@Override
public synchronized void setFilter(final Filter filter) {
this.filter = filter;
final AsyncHandler handler = value;
if (handler != null) {
handler.setFilter(filter);
}
}
public synchronized void addHandlers(final List<InjectedValue<Handler>> list) {
subhandlers.addAll(list);
final AsyncHandler handler = value;
if (handler != null) {
for (InjectedValue<Handler> injectedHandler : list) {
handler.addHandler(injectedHandler.getValue());
}
}
}
public synchronized void addHandler(final InjectedValue<Handler> injectedHandler) {
subhandlers.add(injectedHandler);
final AsyncHandler handler = value;
if (handler != null) {
handler.addHandler(injectedHandler.getValue());
}
}
public synchronized void removeHandler(final Handler subHandler) {
InjectedValue<Handler> valueToRemove = null;
for (InjectedValue<Handler> injectedHandler : subhandlers) {
if (injectedHandler.getValue().equals(subHandler)) valueToRemove = injectedHandler;
}
if (valueToRemove != null) {
subhandlers.remove(valueToRemove);
final AsyncHandler handler = value;
if (handler != null) {
handler.removeHandler(valueToRemove.getValue());
}
}
}
}