appc-config/appc-flow-controller/provider/src/main/java/org/onap/appc/flow/controller/node/RestServiceNode.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.onap.appc.flow.controller.node;
  22
  23 import java.io.FileInputStream;
  24 import java.io.IOException;
  25 import java.io.InputStream;
  26 import java.util.ArrayList;
  27 import java.util.HashMap;
  28 import java.util.Map;
  29 import java.util.Properties;
  30
  31 import org.apache.commons.lang3.StringUtils;
  32 import org.onap.appc.flow.controller.data.Transaction;
  33 import org.onap.appc.flow.controller.executorImpl.RestExecutor;
  34 import org.onap.appc.flow.controller.utils.FlowControllerConstants;
  35 import org.onap.ccsdk.sli.core.sli.SvcLogicContext;
  36 import org.onap.ccsdk.sli.core.sli.SvcLogicException;
  37 import org.onap.ccsdk.sli.core.sli.SvcLogicJavaPlugin;
  38
  39 import com.att.eelf.configuration.EELFLogger;
  40 import com.att.eelf.configuration.EELFManager;
  41 import com.fasterxml.jackson.core.JsonProcessingException;
  42 import com.fasterxml.jackson.databind.JsonNode;
  43 import com.fasterxml.jackson.databind.ObjectMapper;
  44
  45 public class RestServiceNode implements SvcLogicJavaPlugin{
  46
  47
  48     private static final  EELFLogger log = EELFManager.getInstance().getLogger(RestServiceNode.class);
  49     private static final String SDNC_CONFIG_DIR_VAR = "SDNC_CONFIG_DIR";
  50
  51     public void sendRequest(Map<String, String> inParams, SvcLogicContext ctx) throws SvcLogicException {
  52         String fn = "RestServiceNode.sendRequest";
  53         log.info("Received processParamKeys call with params : " + inParams);
  54         String responsePrefix = inParams.get(FlowControllerConstants.INPUT_PARAM_RESPONSE_PRIFIX);
  55         try
  56         {
  57             responsePrefix = StringUtils.isNotBlank(responsePrefix) ? (responsePrefix+".") : "";
  58             //Remove below for Block
  59             for (Object key : ctx.getAttributeKeySet()) {
  60                 String parmName = (String) key;
  61                 String parmValue = ctx.getAttribute(parmName);
  62                 log.info(fn  + "Getting Key = "  + parmName + "and Value = " +  parmValue);
  63             }
  64
  65             send(ctx, inParams);
  66             ctx.setAttribute(responsePrefix + FlowControllerConstants.OUTPUT_PARAM_STATUS, FlowControllerConstants.OUTPUT_STATUS_SUCCESS);
  67
  68         } catch (Exception e) {
  69             ctx.setAttribute(responsePrefix + FlowControllerConstants.OUTPUT_PARAM_STATUS, FlowControllerConstants.OUTPUT_STATUS_FAILURE);
  70             ctx.setAttribute(responsePrefix + FlowControllerConstants.OUTPUT_PARAM_ERROR_MESSAGE, e.getMessage());
  71             e.printStackTrace();
  72             log.error("Error Message : "  + e.getMessage());
  73             throw new SvcLogicException(e.getMessage());
  74         }
  75     }
  76
  77     public void send(SvcLogicContext ctx, Map<String, String> inParams) throws Exception{
  78     try{
  79             Properties prop = loadProperties();
  80             log.info("Loaded Properties " + prop.toString());
  81             String responsePrefix = inParams.get(FlowControllerConstants.INPUT_PARAM_RESPONSE_PRIFIX);
  82             RestExecutor restRequestExecutor = new RestExecutor();
  83             String resourceUri = "";
  84             if(ctx.getAttribute(FlowControllerConstants.INPUT_URL) != null && !(ctx.getAttribute(FlowControllerConstants.INPUT_URL).isEmpty()))
  85                 resourceUri = ctx.getAttribute(FlowControllerConstants.INPUT_URL);
  86             else{
  87                 resourceUri = resourceUri.concat(FlowControllerConstants.HTTP);
  88                 log.info("resourceUri=  " + resourceUri );
  89                 resourceUri = resourceUri.concat(ctx.getAttribute(FlowControllerConstants.INPUT_HOST_IP_ADDRESS));
  90                 resourceUri = resourceUri.concat(":");
  91                 resourceUri = resourceUri.concat(ctx.getAttribute(FlowControllerConstants.INPUT_PORT_NUMBER));
  92
  93                 if(ctx.getAttribute(FlowControllerConstants.INPUT_CONTEXT) != null && !ctx.getAttribute(FlowControllerConstants.INPUT_CONTEXT).isEmpty()){
  94                     resourceUri = resourceUri.concat("/").concat(ctx.getAttribute(FlowControllerConstants.INPUT_CONTEXT));
  95                     log.info("resourceUri= " + resourceUri );
  96                 }
  97                 else if(prop.getProperty(ctx.getAttribute(FlowControllerConstants.INPUT_REQUEST_ACTION).concat(".context")) != null ){
  98                     log.info("resourceUri = " + resourceUri );
  99                     resourceUri = resourceUri.concat("/").concat(prop.getProperty(ctx.getAttribute(FlowControllerConstants.INPUT_REQUEST_ACTION).concat(".context")));
 100                 }
 101                 else
 102                     throw new Exception("Could Not found the context for operation " + ctx.getAttribute(FlowControllerConstants.INPUT_REQUEST_ACTION));
 103
 104
 105                 if(ctx.getAttribute(FlowControllerConstants.INPUT_SUB_CONTEXT) != null && !ctx.getAttribute(FlowControllerConstants.INPUT_SUB_CONTEXT).isEmpty()){
 106                     resourceUri = resourceUri.concat("/").concat(ctx.getAttribute(FlowControllerConstants.INPUT_SUB_CONTEXT));
 107                     log.info("resourceUri" + resourceUri );
 108                 }
 109                 else if(prop.getProperty(ctx.getAttribute(FlowControllerConstants.INPUT_REQUEST_ACTION).concat(".sub-context")) != null ){
 110                     resourceUri = resourceUri.concat("/").concat(prop.getProperty(ctx.getAttribute(FlowControllerConstants.INPUT_REQUEST_ACTION).concat(".sub-context")));
 111                     log.info("resourceUri" + resourceUri );
 112                 }
 113             }
 114
 115             log.info("Rest Constructed URL : " + resourceUri);
 116             Transaction transaction = new Transaction();
 117
 118             transaction.setExecutionEndPoint(resourceUri);
 119             transaction.setExecutionRPC(ctx.getAttribute(FlowControllerConstants.INPUT_REQUEST_ACTION_TYPE));
 120             transaction.setAction(FlowControllerConstants.INPUT_REQUEST_ACTION);
 121             if(ctx.getAttribute(FlowControllerConstants.INPUT_REQUEST_ACTION_TYPE) == null || ctx.getAttribute(FlowControllerConstants.INPUT_REQUEST_ACTION_TYPE).isEmpty())
 122                 throw new Exception("Dont know REST operation for Action " + transaction.getExecutionRPC());
 123             if(ctx.getAttribute(FlowControllerConstants.INPUT_REQUEST_ACTION) == null || ctx.getAttribute(FlowControllerConstants.INPUT_REQUEST_ACTION).isEmpty())
 124                 throw new Exception("Dont know request-action " + transaction.getAction());
 125
 126             //This code need to get changed to get the UserID and pass from a common place.
 127             if(transaction.getuId() == null )
 128                 transaction.setuId(prop.getProperty(ctx.getAttribute(FlowControllerConstants.INPUT_REQUEST_ACTION).concat(".default-rest-user")));
 129             if(transaction.getPswd() == null)
 130                 transaction.setPswd(prop.getProperty(ctx.getAttribute(FlowControllerConstants.INPUT_REQUEST_ACTION).concat(".default-rest-pass")));
 131
 132             HashMap<String, String> output = restRequestExecutor.execute(transaction, ctx);
 133
 134             if(output.get("restResponse") !=null && isValidJSON(output.get("restResponse")) != null)
 135             {
 136                     ctx.setAttribute(responsePrefix + "." + FlowControllerConstants.OUTPUT_STATUS_MESSAGE , output.get("restResponse"));
 137 //                JsonNode restResponse = isValidJSON(output.get("restResponse"));
 138 //                for (String key : inParams.keySet()) {
 139 //                    if(key !=null &&  key.startsWith("output-")){
 140 //                            log.info("Found Key = " + key);
 141 //                            log.info("Found Key in Params " + inParams.get(key) + ".");
 142 //                            JsonNode setValue =  restResponse.findValue(inParams.get(key));
 143 //                             log.info("Found value = " + setValue);
 144 //                             if(setValue !=null && setValue.textValue() !=null && !setValue.textValue().isEmpty())
 145 //                                 ctx.setAttribute(responsePrefix + "." + key, setValue.textValue());
 146 //                             else
 147 //                                 ctx.setAttribute(responsePrefix + "." + key, null);
 148 //                    }
 149 //                }
 150             }
 151             log.info("Response from Rest :" );
 152         }
 153         catch(Exception e)
 154         {
 155             e.printStackTrace();
 156             log.error("Error Message " + e.getMessage());
 157             throw e;
 158         }
 159     }
 160
 161     private Properties loadProperties() throws Exception {
 162         Properties props = new Properties();
 163         String propDir = System.getenv(SDNC_CONFIG_DIR_VAR);
 164         if (propDir == null)
 165             throw new Exception("Cannot find Property file -" + SDNC_CONFIG_DIR_VAR);
 166         String propFile = propDir + FlowControllerConstants.APPC_FLOW_CONTROLLER;
 167         InputStream propStream = new FileInputStream(propFile);
 168         try
 169         {
 170             props.load(propStream);
 171         }
 172         catch (Exception e)
 173         {
 174             throw new Exception("Could not load properties file " + propFile, e);
 175         }
 176         finally
 177         {
 178             try
 179             {
 180                 propStream.close();
 181             }
 182             catch (Exception e)
 183             {
 184                 log.warn("Could not close FileInputStream", e);
 185             }
 186         }
 187         // TODO Auto-generated method stub
 188         return props;
 189     }
 190
 191     public JsonNode isValidJSON(String json) throws IOException {
 192         JsonNode output = null;
 193         log.info("Received response from Interface " + json);
 194         if(json ==null  || json.isEmpty())
 195             return null;
 196         try{
 197             ObjectMapper objectMapper = new ObjectMapper();
 198             output = objectMapper.readTree(json);
 199         } catch(JsonProcessingException e){
 200             log.warn("Response received from interface is not a valid JSON block" + json);
 201             return null;
 202         }
 203         log.info("state is " + output.findValue("state"));
 204
 205         return output;
 206     }
 207 }