winery/org.eclipse.winery.topologymodeler/src/main/java/org/eclipse/winery/topologymodeler/addons/topologycompleter/helper/RESTHelper.java

   1 /*******************************************************************************
   2  * Copyright (c) 2013 Pascal Hirmer.
   3  * All rights reserved. This program and the accompanying materials
   4  * are made available under the terms of the Eclipse Public License v1.0
   5  * and the Apache License 2.0 which both accompany this distribution,
   6  * and are available at http://www.eclipse.org/legal/epl-v10.html
   7  * and http://www.apache.org/licenses/LICENSE-2.0
   8  *
   9  * Contributors:
  10  *    Pascal Hirmer - initial API and implementation
  11  *******************************************************************************/
  12
  13 package org.eclipse.winery.topologymodeler.addons.topologycompleter.helper;
  14
  15 import java.io.IOException;
  16 import java.io.OutputStreamWriter;
  17 import java.net.HttpURLConnection;
  18 import java.net.URL;
  19
  20
  21 import org.eclipse.winery.common.Util;
  22 import org.eclipse.winery.model.tosca.TTopologyTemplate;
  23 import org.slf4j.LoggerFactory;
  24
  25 /**
  26  * This class contains helper methods to call the REST API and PUT/POST information to it.
  27  */
  28 public class RESTHelper {
  29
  30         private static final org.slf4j.Logger logger = LoggerFactory.getLogger(RESTHelper.class.getName());
  31
  32         /**
  33          * This method uses a REST call to save the completed {@link TTopologyTemplate} to the repository.
  34          *
  35          * @param topology
  36          *            the {@link TTopologyTemplate} to be saved
  37          * @param topologyTemplateURL
  38          *            the URL the {@link TTopologyTemplate} is saved to
  39          * @param overwriteTopology
  40          *                        whether the topology is overwritten or a new topology shall be created
  41          * @param topologyName
  42          *                        the name of the newly created topology to build the URL if a new topology shall be created
  43          * @param topologyNamespace
  44          *                        the name space of the newly created topology to build the URL if a new topology shall be created
  45          * @param repositoryURL
  46          *                        the URL to the repository to build the URL if a new topology shall be created
  47          */
  48         public static void saveCompleteTopology(TTopologyTemplate topology, String topologyTemplateURL, boolean overwriteTopology, String topologyName, String topologyNamespace, String repositoryURL) {
  49                 try {
  50
  51                         URL url = null;
  52
  53                         if (overwriteTopology) {
  54                                 url = new URL(topologyTemplateURL);
  55                         } else {
  56                                 // this is necessary to avoid encoding issues
  57                                 topologyNamespace = Util.DoubleURLencode(topologyNamespace);
  58                                 // build the URL with the repositoryURL, the topology namespace and the topology name
  59                                 url = new URL(repositoryURL + "/servicetemplates/" + topologyNamespace + "/" + topologyName + "/topologytemplate/");
  60
  61                                 logger.info("The URL the topology is saved to: " + url);
  62                         }
  63
  64                         // using SSL
  65                         System.setProperty("javax.net.ssl.trustStore", "jssecacerts.cert");
  66
  67                         // configure message
  68                         HttpURLConnection urlConn;
  69                         urlConn = (HttpURLConnection) url.openConnection();
  70
  71                         logger.info("Sending HTTP request...");
  72
  73                         urlConn.setDoOutput(true);
  74                         urlConn.setRequestMethod("PUT");
  75                         urlConn.setRequestProperty("Content-type", "text/xml");
  76                         OutputStreamWriter out = new OutputStreamWriter(urlConn.getOutputStream());
  77
  78                         // build the XML string to be saved
  79                         TTopologyTemplate outputTopology = JAXBHelper.buildXML(topology);
  80                         String outputString = JAXBHelper.getXMLAsString(outputTopology.getClass(), outputTopology);
  81
  82                         logger.info(outputString);
  83                         logger.info("Sending output to Winery.");
  84
  85                         out.write(outputString);
  86                         out.close();
  87                         urlConn.getOutputStream().close();
  88                         logger.info("Output sent, waiting for response...");
  89                         urlConn.getInputStream();
  90
  91                         logger.info("HTTP Response Code is: " + urlConn.getResponseCode());
  92
  93                 } catch (IOException e) {
  94                         logger.error(e.getLocalizedMessage());
  95                 }
  96         }
  97 }