Java tutorial
/* * TeleStax, Open Source Cloud Communications * Copyright 2011-2013, Telestax Inc and individual contributors * by the @authors tag. * * 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.restcomm.sbc.rest.converter; import java.lang.reflect.Type; import java.util.Iterator; import java.util.Map; import org.apache.commons.configuration.Configuration; import org.apache.log4j.Logger; import org.restcomm.sbc.call.Call; import org.restcomm.sbc.managers.MonitoringServiceResponse; import org.restcomm.sbc.rest.SecuredEndpoint; import com.google.gson.JsonArray; import com.google.gson.JsonElement; import com.google.gson.JsonObject; import com.google.gson.JsonSerializationContext; import com.google.gson.JsonSerializer; import com.thoughtworks.xstream.converters.MarshallingContext; import com.thoughtworks.xstream.io.HierarchicalStreamWriter; /** * @author <a href="mailto:gvagenas@gmail.com">gvagenas</a> * */ public class MonitoringServiceConverter extends AbstractConverter implements JsonSerializer<MonitoringServiceResponse> { protected Logger logger = Logger.getLogger(MonitoringServiceConverter.class); public MonitoringServiceConverter(Configuration configuration) { super(configuration); } @Override public boolean canConvert(final Class klass) { return MonitoringServiceResponse.class.equals(klass); } @Override public JsonElement serialize(MonitoringServiceResponse monitoringServiceResponse, Type typeOfSrc, JsonSerializationContext context) { Map<String, Integer> countersMap = monitoringServiceResponse.getCountersMap(); JsonObject result = new JsonObject(); JsonObject metrics = new JsonObject(); JsonArray callsArray = new JsonArray(); if (logger.isInfoEnabled()) { logger.info("MonitoringServiceConverter " + monitoringServiceResponse); } //First add InstanceId and Version details //result.addProperty("InstanceId", monitoringServiceResponse.getInstanceId().getId().toString()); result.addProperty("Version", org.restcomm.sbc.Version.getVersion()); result.addProperty("Revision", org.restcomm.sbc.Version.getRevision()); Iterator<String> counterIterator = countersMap.keySet().iterator(); while (counterIterator.hasNext()) { String counter = counterIterator.next(); metrics.addProperty(counter, countersMap.get(counter)); } result.add("Metrics", metrics); if (monitoringServiceResponse.getCallDetailsList().size() > 0) for (Call callInfo : monitoringServiceResponse.getCallDetailsList()) { callsArray.add(context.serialize(callInfo)); } result.add("LiveCallDetails", callsArray); return result; } @Override public void marshal(Object object, HierarchicalStreamWriter writer, MarshallingContext context) { final MonitoringServiceResponse monitoringServiceResponse = (MonitoringServiceResponse) object; int size = monitoringServiceResponse.getCallDetailsList().size(); final Map<String, Integer> countersMap = monitoringServiceResponse.getCountersMap(); Iterator<String> counterIterator = countersMap.keySet().iterator(); writer.startNode("InstanceId"); writer.setValue(monitoringServiceResponse.getInstanceId().getId().toString()); writer.endNode(); writer.startNode("Version"); writer.setValue(org.restcomm.sbc.Version.getVersion()); writer.endNode(); writer.startNode("Revision"); writer.setValue(org.restcomm.sbc.Version.getRevision()); writer.endNode(); writer.startNode("Metrics"); while (counterIterator.hasNext()) { String counter = counterIterator.next(); writer.startNode(counter); writer.setValue(String.valueOf(countersMap.get(counter))); writer.endNode(); } writer.endNode(); if (size > 0) { writer.startNode("LiveCallDetails"); for (final Call callInfo : monitoringServiceResponse.getCallDetailsList()) { context.convertAnother(callInfo); } writer.endNode(); } } }