ONAP-PDP-REST/src/main/java/org/onap/policy/pdp/rest/impl/XACMLPdpPIPFinderFactory.java

   1 /*-
   2  * ============LICENSE_START=======================================================
   3  * ONAP-PDP-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 package org.onap.policy.pdp.rest.impl;
  21
  22 import java.util.Properties;
  23
  24 import org.apache.commons.logging.Log;
  25 import org.apache.commons.logging.LogFactory;
  26 import org.onap.policy.common.logging.eelf.MessageCodes;
  27 import org.onap.policy.common.logging.eelf.PolicyLogger;
  28
  29 import org.onap.policy.xacml.api.XACMLErrorConstants;
  30 import com.att.research.xacml.api.pip.PIPException;
  31 import com.att.research.xacml.api.pip.PIPFinder;
  32 import com.att.research.xacml.api.pip.PIPFinderFactory;
  33 import com.att.research.xacml.std.pip.finders.ConfigurableEngineFinder;
  34 import com.att.research.xacml.util.XACMLProperties;
  35
  36 public class XACMLPdpPIPFinderFactory extends PIPFinderFactory {
  37         private ConfigurableEngineFinder pipFinder;
  38
  39         private static Log LOGGER       = LogFactory.getLog(XACMLPdpPIPFinderFactory.class);
  40
  41         public XACMLPdpPIPFinderFactory() {
  42         }
  43
  44         public XACMLPdpPIPFinderFactory(Properties properties) {
  45         }
  46
  47         @Override
  48         public PIPFinder getFinder() throws PIPException {
  49                 if (pipFinder == null) {
  50                         synchronized(this) {
  51                                 if (pipFinder == null) {
  52                                         if (LOGGER.isDebugEnabled()) {
  53                                                 LOGGER.debug("Creating default configurable engine finder");
  54                                         }
  55                                         pipFinder                                       = new ConfigurableEngineFinder();
  56                                         Properties xacmlProperties      = null;
  57                                         try {
  58                                                 xacmlProperties = XACMLProperties.getProperties();
  59                                         } catch (Exception ex) {
  60                                                 LOGGER.error( XACMLErrorConstants.ERROR_SYSTEM_ERROR+ "Exception getting XACML properties: " + ex.getMessage(), ex);
  61                                                 PolicyLogger.error(MessageCodes.ERROR_SYSTEM_ERROR, ex, "Exception getting XACML properties");
  62                                                 return null;
  63                                         }
  64                                         if (xacmlProperties != null) {
  65                                                 ((ConfigurableEngineFinder)pipFinder).configure(xacmlProperties);
  66                                         }
  67                                 }
  68                         }
  69                 }
  70                 return pipFinder;
  71         }
  72
  73         @Override
  74         public PIPFinder getFinder(Properties properties) throws PIPException {
  75                 if (pipFinder == null) {
  76                         synchronized(this) {
  77                                 if (pipFinder == null) {
  78                                         if (LOGGER.isDebugEnabled()) {
  79                                                 LOGGER.debug("Creating configurable engine finder using: " + properties);
  80                                         }
  81                                         pipFinder                                       = new ConfigurableEngineFinder();
  82                                         ((ConfigurableEngineFinder)pipFinder).configure(properties);
  83                                 }
  84                         }
  85                 }
  86                 return this.pipFinder;
  87         }
  88 }