appc-config/appc-flow-controller/provider/src/main/java/org/openecomp/appc/flow/controller/executorImpl/RestExecutor.java

   1 /*-
   2  * ============LICENSE_START=======================================================
   3  * ONAP : APP-C
   4  * ================================================================================
   5  * Copyright (C) 2017 AT&T Intellectual Property.  All rights reserved.
   6  * ================================================================================
   7  * Licensed under the Apache License, Version 2.0 (the "License");
   8  * you may not use this file except in compliance with the License.
   9  * You may obtain a copy of the License at
  10  *
  11  *      http://www.apache.org/licenses/LICENSE-2.0
  12  *
  13  * Unless required by applicable law or agreed to in writing, software
  14  * distributed under the License is distributed on an "AS IS" BASIS,
  15  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  16  * See the License for the specific language governing permissions and
  17  * limitations under the License.
  18  * ============LICENSE_END=========================================================
  19  */
  20
  21 package org.openecomp.appc.flow.controller.executorImpl;
  22
  23 import java.io.FileInputStream;
  24 import java.io.InputStream;
  25 import java.net.URI;
  26 import java.nio.charset.Charset;
  27 import java.util.ArrayList;
  28 import java.util.HashMap;
  29 import java.util.Properties;
  30
  31 import javax.net.ssl.HostnameVerifier;
  32 import javax.net.ssl.SSLContext;
  33 import javax.ws.rs.HttpMethod;
  34 import javax.ws.rs.core.MediaType;
  35
  36 import org.apache.commons.io.IOUtils;
  37 import org.openecomp.appc.flow.controller.data.Response;
  38 import org.openecomp.appc.flow.controller.data.Transaction;
  39 import org.openecomp.appc.flow.controller.interfaces.FlowExecutorInterface;
  40 import org.openecomp.appc.flow.controller.utils.FlowControllerConstants;
  41 import org.onap.ccsdk.sli.core.sli.SvcLogicContext;
  42 import com.sun.jersey.api.client.Client;
  43 import com.sun.jersey.api.client.ClientResponse;
  44 import com.sun.jersey.api.client.WebResource;
  45 import com.sun.jersey.api.client.config.DefaultClientConfig;
  46 import com.sun.jersey.api.client.filter.HTTPBasicAuthFilter;
  47 import com.att.eelf.configuration.EELFLogger;
  48 import com.att.eelf.configuration.EELFManager;
  49
  50
  51 public class RestExecutor implements FlowExecutorInterface {
  52
  53     private static final EELFLogger log = EELFManager.getInstance().getLogger(RestExecutor.class);
  54     private static final String SDNC_CONFIG_DIR_VAR = "SDNC_CONFIG_DIR";
  55     Properties props = new Properties();
  56     public RestExecutor() throws Exception {
  57         String propDir = System.getenv(SDNC_CONFIG_DIR_VAR);
  58         if (propDir == null)
  59             throw new Exception(" Cannot find Property file -" + SDNC_CONFIG_DIR_VAR);
  60         String propFile = propDir + FlowControllerConstants.APPC_FLOW_CONTROLLER;
  61         InputStream propStream = new FileInputStream(propFile);
  62         try{
  63             props.load(propStream);
  64         }
  65         catch (Exception e){
  66             throw new Exception("Could not load properties file " + propFile, e);
  67         }
  68         finally{
  69             try{
  70                 propStream.close();
  71             }
  72             catch (Exception e){
  73                 log.warn("Could not close FileInputStream", e);
  74             }
  75         }
  76     }
  77     @Override
  78     public HashMap<String, String> execute(Transaction transaction, SvcLogicContext ctx) throws Exception{
  79         log.info("Configuring Rest Operation....." + transaction.toString());
  80         Response response = new Response();
  81         HashMap<String, String> outputMessage = new HashMap<String, String>();
  82         Client client = null;
  83         WebResource webResource = null;
  84         ClientResponse clientResponse = null;
  85         String responseDataType=MediaType.APPLICATION_JSON;
  86         String requestDataType=MediaType.APPLICATION_JSON;
  87
  88
  89         try{
  90             DefaultClientConfig defaultClientConfig = new DefaultClientConfig();
  91             System.setProperty("jsse.enableSNIExtension", "false");
  92             SSLContext sslContext = null;
  93             SecureRestClientTrustManager secureRestClientTrustManager = new SecureRestClientTrustManager();
  94             sslContext = SSLContext.getInstance("SSL");
  95             sslContext.init(null, new javax.net.ssl.TrustManager[] { secureRestClientTrustManager }, null);
  96             defaultClientConfig.getProperties().put(
  97                     com.sun.jersey.client.urlconnection.HTTPSProperties.PROPERTY_HTTPS_PROPERTIES,
  98                     new com.sun.jersey.client.urlconnection.HTTPSProperties(getHostnameVerifier(), sslContext));
  99             client = Client.create(defaultClientConfig);
 100             client.addFilter(new HTTPBasicAuthFilter(transaction.getuId(), transaction.getPswd()));
 101             webResource = client.resource(new URI(transaction.getExecutionEndPoint()));
 102             webResource.setProperty("Content-Type", "application/json;charset=UTF-8");
 103
 104             log.info("Starting Rest Operation.....");
 105             if(HttpMethod.GET.equalsIgnoreCase(transaction.getExecutionRPC())){
 106                 clientResponse = webResource.accept(responseDataType).get(ClientResponse.class);
 107             }else if(HttpMethod.POST.equalsIgnoreCase(transaction.getExecutionRPC())){
 108                 clientResponse = webResource.type(requestDataType).post(ClientResponse.class, transaction.getPayload());
 109             }else if(HttpMethod.PUT.equalsIgnoreCase(transaction.getExecutionRPC())){
 110                 clientResponse = webResource.type(requestDataType).put(ClientResponse.class,transaction.getPayload());
 111             }else if(HttpMethod.DELETE.equalsIgnoreCase(transaction.getExecutionRPC())){
 112                 clientResponse = webResource.delete(ClientResponse.class);
 113             }
 114
 115             if(clientResponse.getStatus() == 200){
 116                 response.setResponseCode(String.valueOf(clientResponse.getStatus()));
 117                 ArrayList<Response> responses = new ArrayList<Response>();
 118                 responses.add(response);
 119                 transaction.setResponses(responses);
 120                 outputMessage.put("restResponse", clientResponse.getEntity(String.class));
 121             }
 122             else{
 123                 throw new Exception("Can not determine the state of : " + transaction.getActionLevel()  + " HTTP error code : "
 124                         + clientResponse.getStatus());
 125
 126             }
 127
 128             log.info("Completed Rest Operation.....");
 129
 130         }catch (Exception e) {
 131             e.printStackTrace();
 132             log.debug("failed in RESTCONT Action ("+transaction.getExecutionRPC()+") for the resource " + transaction.getExecutionEndPoint() + ", falut message :"+e.getMessage());
 133             throw new Exception("Error While Sending Rest Request" + e.getMessage());
 134         }
 135         finally {
 136             // clean up.
 137             webResource = null;
 138             if(client != null){
 139                 client.destroy();
 140                 client = null;
 141             }
 142         }
 143
 144         return outputMessage;
 145     }
 146
 147 private HostnameVerifier getHostnameVerifier() {
 148     return new HostnameVerifier() {
 149         @Override
 150         public boolean verify(String hostname, javax.net.ssl.SSLSession sslSession) {
 151             return true;
 152         }
 153     };
 154 }
 155
 156 }