Java tutorial
/******************************************************************************* * Copyright (c) 2013 IBM Corporation and others. * All rights reserved. This program and the accompanying materials * are made available under the terms of the Eclipse Public License v1.0 * which accompanies this distribution, and is available at * http://www.eclipse.org/legal/epl-v10.html * * Contributors: * IBM Corporation - initial API and implementation *******************************************************************************/ package org.eclipse.orion.server.logs.jobs; import java.net.URI; import java.util.List; import javax.servlet.http.HttpServletResponse; import org.eclipse.core.runtime.IStatus; import org.eclipse.core.runtime.Status; import org.eclipse.orion.internal.server.servlets.ProtocolConstants; import org.eclipse.orion.server.core.ServerStatus; import org.eclipse.orion.server.core.tasks.TaskJob; import org.eclipse.orion.server.logs.ILogService; import org.eclipse.orion.server.logs.LogUtils; import org.eclipse.orion.server.logs.objects.RollingFileAppenderResource; import org.json.JSONArray; import org.json.JSONObject; import ch.qos.logback.classic.spi.ILoggingEvent; import ch.qos.logback.core.rolling.RollingFileAppender; public class ListRollingFileAppendersJob extends TaskJob { private final ILogService logService; private final URI baseLocation; public ListRollingFileAppendersJob(String userRunningTask, ILogService logService, URI baseLocation) { super(userRunningTask, false); this.logService = logService; this.baseLocation = baseLocation; } @Override protected IStatus performJob() { try { List<RollingFileAppender<ILoggingEvent>> appenders = logService.getRollingFileAppenders(); JSONObject appendersJSON = new JSONObject(); appendersJSON.put(ProtocolConstants.KEY_CHILDREN, new JSONArray()); for (RollingFileAppender<ILoggingEvent> appender : appenders) { RollingFileAppenderResource rollingFileAppender = new RollingFileAppenderResource(appender, baseLocation); if (rollingFileAppender.getArchivedLogFiles() == null) LogUtils.attachArchivedLogFiles(appender, rollingFileAppender, logService); appendersJSON.append(ProtocolConstants.KEY_CHILDREN, rollingFileAppender.toJSON()); } return new ServerStatus(Status.OK_STATUS, HttpServletResponse.SC_OK, appendersJSON); } catch (Exception e) { return new ServerStatus(IStatus.ERROR, HttpServletResponse.SC_INTERNAL_SERVER_ERROR, "An error occured when listing rolling file appenders", e); } } }