Java tutorial
/** * Copyright (C) 2003-2008 eXo Platform SAS. * * This program is free software; you can redistribute it and/or * modify it 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 General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, see<http://www.gnu.org/licenses/>. */ package org.exoplatform.rest.client.openfire; import java.io.IOException; import java.net.URL; import java.util.HashMap; import java.util.List; import java.util.Map; import java.util.Set; import javax.xml.parsers.DocumentBuilderFactory; import org.apache.commons.httpclient.HttpClient; import org.apache.commons.httpclient.HttpException; import org.apache.commons.httpclient.UsernamePasswordCredentials; import org.apache.commons.httpclient.auth.AuthScope; import org.apache.commons.httpclient.methods.GetMethod; import org.apache.commons.httpclient.methods.PostMethod; import org.jivesoftware.util.JiveGlobals; import org.w3c.dom.Document; /** * @author <a href="mailto:vitalka_p@ukr.net">Vitaly Parfonov</a> * @version $Id: $ */ class Utils { static String getBaseURL() { String serverBaseURL = JiveGlobals.getXMLProperty("eXo.env.serverBaseURL"); serverBaseURL = (serverBaseURL != null) ? serverBaseURL : new String("http://localhost:8080/"); serverBaseURL = serverBaseURL.endsWith("/") ? serverBaseURL : serverBaseURL + "/"; String restContext = JiveGlobals.getXMLProperty("eXo.env.restContextName"); restContext = (restContext != null) ? restContext : new String("rest"); // If "eXo.env.restContextName" system property exists, it will override value from Openfire.xml restContext = (System.getProperty("eXo.env.restContextName") != null) ? System.getProperty("eXo.env.restContextName") : restContext; return (serverBaseURL + restContext); } private static UsernamePasswordCredentials usernamePasswordCredentials = new UsernamePasswordCredentials( JiveGlobals.getXMLProperty("provider.authorizedUser.name"), JiveGlobals.getXMLProperty("provider.authorizedUser.password")); static Response doGet(URL url) throws HttpException, IOException { HttpClient httpClient = new HttpClient(); httpClient.getState().setCredentials(new AuthScope(url.getHost(), url.getPort()), usernamePasswordCredentials); GetMethod get = new GetMethod(url.toString()); get.setDoAuthentication(true); int status = httpClient.executeMethod(get); Document resDoc = null; try { if (get.getResponseBody().length > 0) { // if response has body resDoc = DocumentBuilderFactory.newInstance().newDocumentBuilder() .parse(get.getResponseBodyAsStream()); } } catch (Exception e) { throw new HttpException("XML parsing error : " + e); } finally { get.releaseConnection(); } return new Response(status, resDoc); } static Response doPost(URL url) throws HttpException, IOException { HttpClient httpClient = new HttpClient(); httpClient.getState().setCredentials(new AuthScope(url.getHost(), url.getPort()), usernamePasswordCredentials); PostMethod post = new PostMethod(url.toString()); post.setDoAuthentication(true); int status = httpClient.executeMethod(post); Document resDoc = null; try { if (post.getResponseBody().length > 0) { // if response has body resDoc = DocumentBuilderFactory.newInstance().newDocumentBuilder() .parse(post.getResponseBodyAsStream()); } } catch (Exception e) { throw new HttpException("XML parsing error : " + e); } finally { post.releaseConnection(); } return new Response(status, resDoc); } static Response doGet(URL url, HashMap<String, String> params) throws HttpException, IOException { if (params == null || params.size() == 0) return doGet(url); HttpClient httpClient = new HttpClient(); httpClient.getState().setCredentials(new AuthScope(url.getHost(), url.getPort()), usernamePasswordCredentials); String _url = url.toString(); Set<String> key_set = params.keySet(); _url += (key_set.size() > 0) ? "?" : ""; for (String key : key_set) _url += (key + "=" + params.get(key)); GetMethod get = new GetMethod(_url); get.setDoAuthentication(true); int status = httpClient.executeMethod(get); Document resDoc = null; try { if (get.getResponseBody().length > 0) { // if response has body resDoc = DocumentBuilderFactory.newInstance().newDocumentBuilder() .parse(get.getResponseBodyAsStream()); } } catch (Exception e) { throw new HttpException("XML parsing error : " + e); } finally { get.releaseConnection(); } return new Response(status, resDoc); } static Response doPost(URL url, HashMap<String, String> params) throws HttpException, IOException { if (params == null || params.size() == 0) return doPost(url); HttpClient httpClient = new HttpClient(); httpClient.getState().setCredentials(new AuthScope(url.getHost(), url.getPort()), usernamePasswordCredentials); PostMethod post = new PostMethod(url.toString()); post.setDoAuthentication(true); Set<String> key_set = params.keySet(); for (String key : key_set) { post.setParameter(key, params.get(key)); } int status = httpClient.executeMethod(post); Document resDoc = null; try { if (post.getResponseBody().length > 0) { // if response has body resDoc = DocumentBuilderFactory.newInstance().newDocumentBuilder() .parse(post.getResponseBodyAsStream()); } } catch (Exception e) { throw new HttpException("XML parsing error : " + e); } finally { post.releaseConnection(); } return new Response(status, resDoc); } static Map<String, String> parseQuery(List<String> l) { Map<String, String> m = new HashMap<String, String>(); if (l != null && l.size() > 0) { for (String s : l) { int eq = s.indexOf('='); if (eq <= 0) continue; String key = s.substring(0, eq).trim(); String value = s.substring(eq + 1, s.length()).trim(); m.put(key, value); } } return m; } static class Response { private final int status_; private final Document d_; public Response(int status, Document d) { status_ = status; d_ = d; } public int getStatus() { return status_; } public Document getResponseDoc() { return d_; } } }