Java tutorial
/* * TeleStax, Open Source Cloud Communications * Copyright 2011-2014, Telestax Inc and individual contributors * by the @authors tag. * * This program is free software: you can redistribute it and/or modify * under the terms of the GNU Affero General Public License as * published by the Free Software Foundation; either version 3 of * the License, or (at your option) any later version. * * This program 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 Affero General Public License for more details. * * You should have received a copy of the GNU Affero General Public License * along with this program. If not, see <http://www.gnu.org/licenses/> * */ package org.mobicents.servlet.restcomm.http.statistics; import static javax.ws.rs.core.MediaType.APPLICATION_JSON; import static javax.ws.rs.core.MediaType.APPLICATION_JSON_TYPE; import static javax.ws.rs.core.Response.ok; import static javax.ws.rs.core.Response.status; import static javax.ws.rs.core.Response.Status.UNAUTHORIZED; import java.util.List; import javax.annotation.PostConstruct; import javax.servlet.ServletContext; import javax.ws.rs.core.Context; import javax.ws.rs.core.MediaType; import javax.ws.rs.core.Response; import org.apache.commons.configuration.Configuration; import org.apache.shiro.authz.AuthorizationException; import org.mobicents.servlet.restcomm.annotations.concurrency.NotThreadSafe; import org.mobicents.servlet.restcomm.dao.AccountsDao; import org.mobicents.servlet.restcomm.dao.DaoManager; import org.mobicents.servlet.restcomm.dao.StatisticsDao; import org.mobicents.servlet.restcomm.entities.Client; import org.mobicents.servlet.restcomm.http.AbstractEndpoint; import org.mobicents.servlet.restcomm.statistics.StatisticsCallsPerMonthLast12Months; import com.google.gson.Gson; import com.google.gson.GsonBuilder; import com.thoughtworks.xstream.XStream; /** * @author charles.roufay@telestax.com (Charles Roufay) */ @NotThreadSafe public abstract class StatisticsCallsPerMonthLast12MonthsEndpoint extends AbstractEndpoint { @Context protected ServletContext context; protected Configuration configuration; protected StatisticsDao dao; protected Gson gson; protected XStream xstream; protected AccountsDao accountsDao; public StatisticsCallsPerMonthLast12MonthsEndpoint() { super(); } @PostConstruct public void init() { final DaoManager storage = (DaoManager) context.getAttribute(DaoManager.class.getName()); dao = storage.getStatisticsDao(); accountsDao = storage.getAccountsDao(); configuration = (Configuration) context.getAttribute(Configuration.class.getName()); configuration = configuration.subset("runtime-settings"); super.init(configuration); final StatisticsCallsPerMonthLast12MonthsConverter converter = new StatisticsCallsPerMonthLast12MonthsConverter( configuration); final GsonBuilder builder = new GsonBuilder(); builder.registerTypeAdapter(Client.class, converter); builder.setPrettyPrinting(); gson = builder.create(); } protected Response getStatistics(final String accountSid, final MediaType responseType) { try { secure(accountsDao.getAccount(accountSid), "RestComm:Read:Statistics"); } catch (final AuthorizationException exception) { return status(UNAUTHORIZED).build(); } final List<StatisticsCallsPerMonthLast12Months> statistics = dao.getCallsPerMonthLast12Months(); if (APPLICATION_JSON_TYPE == responseType) { return ok(gson.toJson(statistics), APPLICATION_JSON).build(); } else { return null; } } }