Java tutorial
/* * RHQ Management Platform * Copyright (C) 2005-2014 Red Hat, Inc. * All rights reserved. * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License, version 2, as * published by the Free Software Foundation, and/or the GNU Lesser * General Public License, version 2.1, also as published by the Free * Software Foundation. * * 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 General Public License and the GNU Lesser General Public License * for more details. * * You should have received a copy of the GNU General Public License * and the GNU Lesser General Public License along with this program; * if not, write to the Free Software Foundation, Inc., * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ package org.jboss.as.jdr.commands; import java.io.File; import java.io.PrintWriter; import java.net.InetAddress; import java.net.Socket; import java.net.SocketException; import org.apache.commons.io.FileUtils; /** * Command to get data from the running RHQ server * @author Libor Zoubek */ public class RHQStatusCommand extends JdrCommand { private static final String RHQ_PREFIX = "rhq" + File.separator; private static final String RHQ_SERVER_STATE_JSON = RHQ_PREFIX + "rhq-server-state.json"; @Override public void execute() throws Exception { File keyFile = new File(System.getProperty("jboss.server.data.dir"), "jdr-token"); if (!keyFile.exists() || !keyFile.canRead()) { this.env.getZip().add("Cannot read access token file provided by [JDR Support] RHQ server plugin", RHQ_SERVER_STATE_JSON); return; } String token = FileUtils.readFileToString(keyFile); try { Socket socket = new Socket(InetAddress.getByName(null), 7079); PrintWriter out = new PrintWriter(socket.getOutputStream(), true); out.println(token); this.env.getZip().add(socket.getInputStream(), RHQ_SERVER_STATE_JSON); out.close(); socket.close(); } catch (SocketException se) { this.env.getZip().add(se.getMessage() + " - Make sure [JDR Support] server plugin is enabled", RHQ_SERVER_STATE_JSON); } catch (Exception e) { this.env.getZip().add("Failed to retrieve status : " + e.getMessage(), RHQ_SERVER_STATE_JSON); } } }