ONAP-REST/src/main/java/org/onap/policy/rest/util/Webapps.java

   1 /*-
   2  * ============LICENSE_START=======================================================
   3  * ONAP-REST
   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.policy.rest.util;
  22
  23 import java.io.IOException;
  24 import java.nio.file.Files;
  25 import java.nio.file.Path;
  26 import java.nio.file.Paths;
  27
  28 import org.apache.commons.logging.Log;
  29 import org.apache.commons.logging.LogFactory;
  30 import org.onap.policy.rest.XACMLRestProperties;
  31
  32 import org.onap.policy.xacml.api.XACMLErrorConstants;
  33
  34 import com.att.research.xacml.api.pap.PAPException;
  35 import com.att.research.xacml.util.XACMLProperties;
  36
  37 import org.onap.policy.common.logging.eelf.MessageCodes;
  38 import org.onap.policy.common.logging.eelf.PolicyLogger;
  39
  40 public class Webapps {
  41         private static String actionHome = null;
  42         private static String configHome = null;
  43         private static Log logger       = LogFactory.getLog(Webapps.class);
  44
  45         private Webapps() {
  46         }
  47
  48         public static String getConfigHome(){
  49                 try {
  50                         loadWebapps();
  51                 } catch (PAPException e) {
  52                         logger.error("Exception Occured while loading webapps",e);
  53                         return null;
  54                 }
  55                 return configHome;
  56         }
  57
  58         public static String getActionHome(){
  59                 try {
  60                         loadWebapps();
  61                 } catch (PAPException e) {
  62                         logger.error("Exception Occured while loading webapps",e);
  63                         return null;
  64                 }
  65                 return actionHome;
  66         }
  67
  68         private static void loadWebapps() throws PAPException{
  69                 String errorMessageName = "Invalid Webapps Path Location property :";
  70                 if(actionHome == null || configHome == null){
  71                         Path webappsPath = Paths.get(XACMLProperties.getProperty(XACMLRestProperties.PROP_PAP_WEBAPPS));
  72                         //Sanity Check
  73                         if (webappsPath == null) {
  74                                 logger.error(errorMessageName + XACMLRestProperties.PROP_PAP_WEBAPPS);
  75                                 PolicyLogger.error(errorMessageName + XACMLRestProperties.PROP_PAP_WEBAPPS);
  76                                 throw new PAPException(errorMessageName + XACMLRestProperties.PROP_PAP_WEBAPPS);
  77                         }
  78                         Path webappsPathConfig;
  79                         Path webappsPathAction;
  80                         if(webappsPath.toString().contains("\\")){
  81                                 webappsPathConfig = Paths.get(webappsPath.toString()+"\\Config");
  82                                 webappsPathAction = Paths.get(webappsPath.toString()+"\\Action");
  83                         }else{
  84                                 webappsPathConfig = Paths.get(webappsPath.toString()+"/Config");
  85                                 webappsPathAction = Paths.get(webappsPath.toString()+"/Action");
  86                         }
  87
  88                         checkConfigActionHomeExists(webappsPathConfig, webappsPathAction);
  89
  90                         actionHome = webappsPathAction.toString();
  91                         configHome = webappsPathConfig.toString();
  92                 }
  93         }
  94
  95         private  static void checkConfigActionHomeExists(Path webappsPathConfig, Path webappsPathAction){
  96                 if (!webappsPathConfig.toFile().exists()){
  97                         try {
  98                                 Files.createDirectories(webappsPathConfig);
  99                         } catch (IOException e) {
 100                                 logger.error(XACMLErrorConstants.ERROR_PROCESS_FLOW + "Failed to create config directory: "
 101                                                 + webappsPathConfig.toAbsolutePath().toString(), e);
 102                                 PolicyLogger.error(MessageCodes.ERROR_PROCESS_FLOW, e, "Webapps", "Failed to create config directory");
 103                         }
 104                 }
 105
 106                 if (!webappsPathAction.toFile().exists()){
 107                         try {
 108                                 Files.createDirectories(webappsPathAction);
 109                         } catch (IOException e) {
 110                                 logger.error(XACMLErrorConstants.ERROR_PROCESS_FLOW + "Failed to create config directory: "
 111                                                 + webappsPathAction.toAbsolutePath().toString(), e);
 112                                 PolicyLogger.error(MessageCodes.ERROR_PROCESS_FLOW, e, "Webapps", "Failed to create config directory");
 113                         }
 114                 }
 115         }
 116
 117 }