Java tutorial
/* * geo-platform * Rich webgis framework * http://geo-platform.org * ==================================================================== * * Copyright (C) 2008-2013 geoSDI Group (CNR IMAA - Potenza - ITALY). * * This program is free software: you can redistribute it and/or modify it * under the terms of the GNU 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/ * * ==================================================================== * * Linking this library statically or dynamically with other modules is * making a combined work based on this library. Thus, the terms and * conditions of the GNU General Public License cover the whole combination. * * As a special exception, the copyright holders of this library give you permission * to link this library with independent modules to produce an executable, regardless * of the license terms of these independent modules, and to copy and distribute * the resulting executable under terms of your choice, provided that you also meet, * for each linked independent module, the terms and conditions of the license of * that module. An independent module is a module which is not derived from or * based on this library. If you modify this library, you may extend this exception * to your version of the library, but you are not obligated to do so. If you do not * wish to do so, delete this exception statement from your version. * */ package org.geosdi.geoplatform.gui.server.command.publish.cas; import java.io.BufferedReader; import java.io.FileNotFoundException; import java.io.IOException; import java.io.InputStream; import java.io.InputStreamReader; import java.io.Reader; import java.io.StringWriter; import java.io.Writer; import java.net.MalformedURLException; import java.util.List; import javax.annotation.Resource; import javax.servlet.http.HttpServletRequest; import org.apache.http.HttpHost; import org.apache.http.HttpResponse; import org.apache.http.client.methods.HttpGet; import org.apache.http.impl.client.DefaultHttpClient; import org.apache.http.protocol.HttpContext; import org.geosdi.geoplatform.exception.ResourceNotFoundFault; import org.geosdi.geoplatform.gui.client.command.publish.basic.PublishLayerPreviewResponse; import org.geosdi.geoplatform.gui.client.command.publish.cas.CasPublishLayerPreviewRequest; import org.geosdi.geoplatform.gui.command.server.GPCommand; import org.geosdi.geoplatform.gui.global.GeoPlatformException; import org.geosdi.geoplatform.gui.server.SessionUtility; import org.geosdi.geoplatform.gui.utility.GPReloadURLException; import org.geosdi.geoplatform.gui.utility.GPSessionTimeout; import org.geosdi.geoplatform.services.GPPublisherBasicServiceImpl; import org.slf4j.Logger; import org.slf4j.LoggerFactory; import org.springframework.beans.factory.InitializingBean; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.beans.factory.annotation.Qualifier; import org.springframework.beans.factory.annotation.Value; import org.springframework.context.annotation.Lazy; import org.springframework.stereotype.Component; /** * * @author Giuseppe La Scaleia - CNR IMAA geoSDI Group * @email giuseppe.lascaleia@geosdi.org */ @Lazy(true) @Component(value = "command.publish.cas.CasPublishLayerPreviewCommand") public class CasPublishLayerPreviewCommand implements GPCommand<CasPublishLayerPreviewRequest, PublishLayerPreviewResponse>, InitializingBean { private static final Logger logger = LoggerFactory.getLogger(CasPublishLayerPreviewCommand.class); private GPPublisherBasicServiceImpl casPublisherService; private HttpGet httpget; private DefaultHttpClient httpclient; private HttpContext localContext; private HttpHost targetHost; @Autowired private SessionUtility sessionUtility; // private @Value("configurator{cluster_reload_url}") String urlClusterReload; private @Value("configurator{cluster_reload_host_url}") String hostUrlClusterReload; private @Value("configurator{cluser_reload_username}") String userNameClusterReload; private @Value("configurator{cluser_reload_password}") String passwordClusterReload; @Override public void afterPropertiesSet() throws Exception { this.httpget = new HttpGet(urlClusterReload); this.targetHost = new HttpHost(hostUrlClusterReload); } @Override public PublishLayerPreviewResponse execute(CasPublishLayerPreviewRequest request, HttpServletRequest httpServletRequest) { try { sessionUtility.getLoggedAccount(httpServletRequest); } catch (GPSessionTimeout timeout) { throw new GeoPlatformException(timeout); } String result = null; try { List<String> layerList = request.getLayerList(); casPublisherService.publishAll(httpServletRequest.getSession().getId(), "previews", "dataTest", layerList); boolean reloadCluster = request.isReloadCluster(); if (reloadCluster) { HttpResponse response = httpclient.execute(targetHost, httpget, localContext); // HttpResponse response = httpclient.execute(get, localContext); InputStream is = response.getEntity().getContent(); Writer writer = new StringWriter(); char[] buffer = new char[1024]; try { Reader reader = new BufferedReader(new InputStreamReader(is, "UTF-8")); int n; while ((n = reader.read(buffer)) != -1) { writer.write(buffer, 0, n); } } finally { is.close(); } result = writer.toString(); } } catch (ResourceNotFoundFault ex) { logger.error("Error on publish shape: " + ex); throw new GeoPlatformException("Error on publish shape."); } catch (FileNotFoundException ex) { logger.error("Error on publish shape: " + ex); throw new GeoPlatformException("Error on publish shape."); } catch (MalformedURLException e) { logger.error("Error on cluster url: " + e); throw new GeoPlatformException(new GPReloadURLException("Error on cluster url.")); } catch (IOException e) { logger.error("Error on reloading cluster: " + e); throw new GeoPlatformException(new GPReloadURLException("Error on reloading cluster.")); } return new PublishLayerPreviewResponse(result); } /** * @param geoPlatformServiceClient the geoPlatformServiceClient to set */ @Resource public void setCasPublisherService( @Qualifier("casPublisherService") GPPublisherBasicServiceImpl casPublisherService) { // System.out.println("*************** Setting publisher service: " + ); this.casPublisherService = casPublisherService; } }