appc-config/appc-flow-controller/provider/src/main/java/org/onap/appc/flow/controller/node/RestServiceNode.java

   1 /*-
   2  * ============LICENSE_START=======================================================
   3  * ONAP : APPC
   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  *
  19  * ECOMP is a trademark and service mark of AT&T Intellectual Property.
  20  * ============LICENSE_END=========================================================
  21  */
  22
  23 package org.onap.appc.flow.controller.node;
  24
  25 import com.att.eelf.configuration.EELFLogger;
  26 import com.att.eelf.configuration.EELFManager;
  27 import com.fasterxml.jackson.core.JsonProcessingException;
  28 import com.fasterxml.jackson.databind.JsonNode;
  29 import com.fasterxml.jackson.databind.ObjectMapper;
  30 import java.io.FileInputStream;
  31 import java.io.IOException;
  32 import java.io.InputStream;
  33 import java.util.Map;
  34 import java.util.Properties;
  35 import org.apache.commons.lang3.StringUtils;
  36 import org.onap.appc.flow.controller.data.Transaction;
  37 import org.onap.appc.flow.controller.executorImpl.RestExecutor;
  38 import org.onap.appc.flow.controller.utils.FlowControllerConstants;
  39 import org.onap.ccsdk.sli.core.sli.SvcLogicContext;
  40 import org.onap.ccsdk.sli.core.sli.SvcLogicException;
  41 import org.onap.ccsdk.sli.core.sli.SvcLogicJavaPlugin;
  42
  43 public class RestServiceNode implements SvcLogicJavaPlugin {
  44
  45     private static final  EELFLogger log = EELFManager.getInstance().getLogger(RestServiceNode.class);
  46     private static final String SDNC_CONFIG_DIR_VAR = "SDNC_CONFIG_DIR";
  47
  48     public void sendRequest(Map<String, String> inParams, SvcLogicContext ctx) throws SvcLogicException {
  49         String fn = "RestServiceNode.sendRequest";
  50         log.info("Received processParamKeys call with params : " + inParams);
  51         String responsePrefix = inParams.get(FlowControllerConstants.INPUT_PARAM_RESPONSE_PRIFIX);
  52         try {
  53             responsePrefix = StringUtils.isNotBlank(responsePrefix) ? (responsePrefix + ".") : "";
  54             //Remove below for Block
  55             for (Object key : ctx.getAttributeKeySet()) {
  56                 String parmName = (String) key;
  57                 String parmValue = ctx.getAttribute(parmName);
  58                 log.info(fn  + "Getting Key = "  + parmName + "and Value = " +  parmValue);
  59             }
  60
  61             send(ctx, inParams);
  62             ctx.setAttribute(responsePrefix + FlowControllerConstants.OUTPUT_PARAM_STATUS,
  63                 FlowControllerConstants.OUTPUT_STATUS_SUCCESS);
  64
  65         } catch (Exception e) {
  66             ctx.setAttribute(responsePrefix + FlowControllerConstants.OUTPUT_PARAM_STATUS,
  67                 FlowControllerConstants.OUTPUT_STATUS_FAILURE);
  68             ctx.setAttribute(responsePrefix + FlowControllerConstants.OUTPUT_PARAM_ERROR_MESSAGE,
  69                 e.getMessage());
  70             log.error("Error Message : "  + e.getMessage(), e);
  71             throw new SvcLogicException(e.getMessage());
  72         }
  73     }
  74
  75     private void send(SvcLogicContext ctx, Map<String, String> inParams) throws Exception {
  76         try {
  77             Properties prop = loadProperties();
  78             log.info("Loaded Properties " + prop.toString());
  79             String responsePrefix = inParams.get(FlowControllerConstants.INPUT_PARAM_RESPONSE_PRIFIX);
  80             String resourceUri = "";
  81             if (ctx.getAttribute(FlowControllerConstants.INPUT_URL) != null
  82                 && !(ctx.getAttribute(FlowControllerConstants.INPUT_URL).isEmpty())) {
  83                 resourceUri = ctx.getAttribute(FlowControllerConstants.INPUT_URL);
  84
  85             } else {
  86                 resourceUri = resourceUri.concat(FlowControllerConstants.HTTP);
  87                 log.info("resourceUri=  " + resourceUri );
  88                 resourceUri = resourceUri.concat(ctx.getAttribute(FlowControllerConstants.INPUT_HOST_IP_ADDRESS));
  89                 resourceUri = resourceUri.concat(":");
  90                 resourceUri = resourceUri.concat(ctx.getAttribute(FlowControllerConstants.INPUT_PORT_NUMBER));
  91
  92                 if (ctx.getAttribute(FlowControllerConstants.INPUT_CONTEXT) != null
  93                     && !ctx.getAttribute(FlowControllerConstants.INPUT_CONTEXT).isEmpty()) {
  94                     resourceUri = resourceUri
  95                         .concat("/")
  96                         .concat(ctx.getAttribute(FlowControllerConstants.INPUT_CONTEXT));
  97                     log.info("resourceUri= " + resourceUri );
  98
  99                 } else if (prop.getProperty(ctx.getAttribute(FlowControllerConstants.INPUT_REQUEST_ACTION)
 100                     .concat(".context")) != null ) {
 101                     log.info("resourceUri = " + resourceUri );
 102                     resourceUri = resourceUri
 103                         .concat("/")
 104                         .concat(prop.getProperty(ctx.getAttribute(FlowControllerConstants.INPUT_REQUEST_ACTION)
 105                             .concat(".context")));
 106
 107                 } else {
 108                     throw new Exception("Could Not found the context for operation "
 109                         + ctx.getAttribute(FlowControllerConstants.INPUT_REQUEST_ACTION));
 110                 }
 111
 112                 if (ctx.getAttribute(FlowControllerConstants.INPUT_SUB_CONTEXT) != null
 113                     && !ctx.getAttribute(FlowControllerConstants.INPUT_SUB_CONTEXT).isEmpty()) {
 114                     resourceUri = resourceUri
 115                         .concat("/")
 116                         .concat(ctx.getAttribute(FlowControllerConstants.INPUT_SUB_CONTEXT));
 117                     log.info("resourceUri" + resourceUri );
 118
 119                 } else if (prop.getProperty(ctx.getAttribute(FlowControllerConstants.INPUT_REQUEST_ACTION)
 120                     .concat(".sub-context")) != null ) {
 121                     resourceUri = resourceUri
 122                         .concat("/")
 123                         .concat(prop.getProperty(ctx.getAttribute(FlowControllerConstants.INPUT_REQUEST_ACTION)
 124                             .concat(".sub-context")));
 125                     log.info("resourceUri" + resourceUri );
 126                 }
 127             }
 128             log.info("Rest Constructed URL : " + resourceUri);
 129
 130             Transaction transaction = new Transaction();
 131             transaction.setExecutionEndPoint(resourceUri);
 132             transaction.setExecutionRPC(ctx.getAttribute(FlowControllerConstants.INPUT_REQUEST_ACTION_TYPE));
 133             transaction.setAction(FlowControllerConstants.INPUT_REQUEST_ACTION);
 134             if (ctx.getAttribute(FlowControllerConstants.INPUT_REQUEST_ACTION_TYPE) == null
 135                 || ctx.getAttribute(FlowControllerConstants.INPUT_REQUEST_ACTION_TYPE).isEmpty()) {
 136                 throw new Exception("Dont know REST operation for Action " + transaction.getExecutionRPC());
 137             }
 138             if (ctx.getAttribute(FlowControllerConstants.INPUT_REQUEST_ACTION) == null
 139                 || ctx.getAttribute(FlowControllerConstants.INPUT_REQUEST_ACTION).isEmpty()) {
 140                 throw new Exception("Dont know request-action " + transaction.getAction());
 141             }
 142
 143             //This code need to get changed to get the UserID and pass from a common place.
 144             if (transaction.getuId() == null) {
 145                 transaction.setuId(prop.getProperty(ctx.getAttribute(FlowControllerConstants.INPUT_REQUEST_ACTION)
 146                     .concat(".default-rest-user")));
 147             }
 148             if (transaction.getPswd() == null) {
 149                 transaction.setPswd(prop.getProperty(ctx.getAttribute(FlowControllerConstants.INPUT_REQUEST_ACTION)
 150                     .concat(".default-rest-pass")));
 151             }
 152
 153             RestExecutor restRequestExecutor = new RestExecutor();
 154             Map<String, String> output = restRequestExecutor.execute(transaction, ctx);
 155
 156             if (isValidJson(output.get("restResponse")) != null) {
 157                 ctx.setAttribute(responsePrefix + "." + FlowControllerConstants.OUTPUT_STATUS_MESSAGE,
 158                     output.get("restResponse"));
 159 //                JsonNode restResponse = isValidJson(output.get("restResponse"));
 160 //                for (String key : inParams.keySet()) {
 161 //                    if(key !=null &&  key.startsWith("output-")){
 162 //                            log.info("Found Key = " + key);
 163 //                            log.info("Found Key in Params " + inParams.get(key) + ".");
 164 //                            JsonNode setValue =  restResponse.findValue(inParams.get(key));
 165 //                             log.info("Found value = " + setValue);
 166 //                             if(setValue !=null && setValue.textValue() !=null && !setValue.textValue().isEmpty())
 167 //                                 ctx.setAttribute(responsePrefix + "." + key, setValue.textValue());
 168 //                             else
 169 //                                 ctx.setAttribute(responsePrefix + "." + key, null);
 170 //                    }
 171 //                }
 172             }
 173             log.info("Response from Rest :" );
 174
 175         } catch(Exception e) {
 176             log.error("Error Message: " + e.getMessage(), e);
 177             throw e;
 178         }
 179     }
 180
 181     private Properties loadProperties() throws Exception {
 182         Properties props = new Properties();
 183         String propDir = System.getenv(SDNC_CONFIG_DIR_VAR);
 184         if (propDir == null) {
 185             throw new Exception("Cannot find Property file -" + SDNC_CONFIG_DIR_VAR);
 186         }
 187         String propFile = propDir + FlowControllerConstants.APPC_FLOW_CONTROLLER;
 188         try (InputStream propStream = new FileInputStream(propFile)) {
 189
 190             props.load(propStream);
 191         }
 192         catch (Exception e) {
 193             throw new Exception("Could not load properties file " + propFile, e);
 194         }
 195         return props;
 196     }
 197
 198     private JsonNode isValidJson(String json) throws IOException {
 199         JsonNode output;
 200         log.info("Received response from Interface " + json);
 201         if (json == null  || json.isEmpty()) {
 202             return null;
 203         }
 204         try {
 205             ObjectMapper objectMapper = new ObjectMapper();
 206             output = objectMapper.readTree(json);
 207         } catch(JsonProcessingException e) {
 208             log.warn("Response received from interface is not a valid JSON block" + json, e);
 209             return null;
 210         }
 211         log.info("state is " + output.findValue("state"));
 212         return output;
 213     }
 214 }