common-app-api/src/main/java/org/openecomp/sdc/be/config/ConfigurationManager.java

   1 /*-
   2  * ============LICENSE_START=======================================================
   3  * SDC
   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.sdc.be.config;
  22
  23 import com.google.common.annotations.VisibleForTesting;
  24 import org.openecomp.sdc.common.api.BasicConfiguration;
  25 import org.openecomp.sdc.common.api.ConfigurationListener;
  26 import org.openecomp.sdc.common.api.ConfigurationSource;
  27 import org.openecomp.sdc.common.api.FileChangeCallback;
  28 import org.openecomp.sdc.common.config.EcompErrorConfiguration;
  29 import org.openecomp.sdc.common.config.IEcompConfigurationManager;
  30
  31 import java.util.HashMap;
  32 import java.util.Map;
  33
  34 public class ConfigurationManager implements FileChangeCallback, IEcompConfigurationManager {
  35
  36
  37         ConfigurationSource configurationSource = null;
  38         private static ConfigurationManager instance;
  39         final Map<String, Object> configurations = new HashMap<>();
  40
  41     @VisibleForTesting
  42     public ConfigurationManager() {
  43         super();
  44         instance = this;
  45     }
  46
  47         public ConfigurationManager(ConfigurationSource configurationSource) {
  48                 super();
  49                 this.configurationSource = configurationSource;
  50                 loadConfigurationFiles();
  51                 instance = this;
  52         }
  53
  54         private void loadConfigurationFiles() {
  55
  56                 loadConfigurationClass(Configuration.class);
  57                 loadConfigurationClass(ErrorConfiguration.class);
  58                 loadConfigurationClass(Neo4jErrorsConfiguration.class);
  59                 loadConfigurationClass(EcompErrorConfiguration.class);
  60                 loadConfigurationClass(DistributionEngineConfiguration.class);
  61         }
  62
  63         private <T extends BasicConfiguration> void loadConfigurationClass(Class<T> clazz) {
  64                 ConfigurationListener configurationListener = new ConfigurationListener(clazz, this);
  65
  66                 T object = configurationSource.getAndWatchConfiguration(clazz, configurationListener);
  67
  68                 configurations.put(getKey(clazz), object);
  69         }
  70
  71         private <T> String getKey(Class<T> class1) {
  72
  73                 return class1.getSimpleName();
  74
  75         }
  76
  77         public Configuration getConfiguration() {
  78
  79                 return (Configuration) configurations.get(getKey(Configuration.class));
  80
  81         }
  82
  83         public void setConfiguration(Configuration configuration) {
  84
  85                 configurations.put(getKey(Configuration.class), configuration);
  86
  87         }
  88
  89         public void setErrorConfiguration(ErrorConfiguration configuration) {
  90
  91                 configurations.put(getKey(ErrorConfiguration.class), configuration);
  92
  93         }
  94
  95         public ErrorConfiguration getErrorConfiguration() {
  96
  97                 return (ErrorConfiguration) configurations.get(getKey(ErrorConfiguration.class));
  98
  99         }
 100
 101         public Neo4jErrorsConfiguration getNeo4jErrorsConfiguration() {
 102                 return (Neo4jErrorsConfiguration) configurations.get(getKey(Neo4jErrorsConfiguration.class));
 103         }
 104
 105         @Override
 106         public EcompErrorConfiguration getEcompErrorConfiguration() {
 107
 108                 return (EcompErrorConfiguration) configurations.get(getKey(EcompErrorConfiguration.class));
 109
 110         }
 111
 112         public Configuration getConfigurationAndWatch(ConfigurationListener configurationListener) {
 113
 114                 if (configurationListener != null) {
 115
 116                         configurationSource.addWatchConfiguration(Configuration.class, configurationListener);
 117
 118                 }
 119                 return (Configuration) configurations.get(getKey(Configuration.class));
 120
 121         }
 122
 123         public static ConfigurationManager getConfigurationManager() {
 124                 return instance;
 125         }
 126
 127     public void reconfigure(final BasicConfiguration basicConfiguration) {
 128                 if (basicConfiguration instanceof Configuration) {
 129                         configurations.put(getKey(Configuration.class), basicConfiguration);
 130                 }
 131         }
 132
 133         /**
 134          * FOR TEST ONLY
 135          *
 136          * @param ecompErrorConfiguration
 137          */
 138         public void setEcompErrorConfiguration(EcompErrorConfiguration ecompErrorConfiguration) {
 139
 140                 configurations.put(getKey(EcompErrorConfiguration.class), ecompErrorConfiguration);
 141
 142         }
 143
 144         public DistributionEngineConfiguration getDistributionEngineConfiguration() {
 145
 146                 return (DistributionEngineConfiguration) configurations.get(getKey(DistributionEngineConfiguration.class));
 147
 148         }
 149 }