openecomp-be/lib/openecomp-sdc-translator-lib/openecomp-sdc-translator-core/src/main/java/org/openecomp/sdc/translator/services/heattotosca/FunctionTranslationFactory.java

   1 /*
   2  * Copyright © 2016-2018 European Support Limited
   3  *
   4  * Licensed under the Apache License, Version 2.0 (the "License");
   5  * you may not use this file except in compliance with the License.
   6  * You may obtain a copy of the License at
   7  *
   8  *      http://www.apache.org/licenses/LICENSE-2.0
   9  *
  10  * Unless required by applicable law or agreed to in writing, software
  11  * distributed under the License is distributed on an "AS IS" BASIS,
  12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  * See the License for the specific language governing permissions and
  14  * limitations under the License.
  15  */
  16
  17 package org.openecomp.sdc.translator.services.heattotosca;
  18
  19 import org.onap.config.api.Configuration;
  20 import org.onap.config.api.ConfigurationManager;
  21 import org.openecomp.core.utilities.CommonMethods;
  22 import org.openecomp.sdc.datatypes.configuration.ImplementationConfiguration;
  23
  24 import java.util.Map;
  25 import java.util.Optional;
  26
  27 public class FunctionTranslationFactory {
  28     private static final Map<String, ImplementationConfiguration> functionTranslationImplMap;
  29
  30     static {
  31         Configuration config = ConfigurationManager.lookup();
  32         functionTranslationImplMap = config.populateMap(ConfigConstants.TRANSLATOR_NAMESPACE,
  33                 ConfigConstants.FUNCTION_TRANSLATION_IMPL_KEY, ImplementationConfiguration.class);
  34         functionTranslationImplMap.putAll(config.populateMap(ConfigConstants.MANDATORY_TRANSLATOR_NAMESPACE,
  35                 ConfigConstants.FUNCTION_TRANSLATION_IMPL_KEY, ImplementationConfiguration.class));
  36
  37     }
  38
  39     /**
  40      * Gets function translation instance.
  41      *
  42      * @param heatFunctionKey heat function key
  43      * @return the instance
  44      */
  45     public static Optional<FunctionTranslation> getInstance(String heatFunctionKey) {
  46         if (isSupportedFunction(heatFunctionKey)) {
  47             String functionTranslationImplClassName =
  48                     functionTranslationImplMap.get(heatFunctionKey).getImplementationClass();
  49             return Optional.of(CommonMethods
  50                     .newInstance(functionTranslationImplClassName, FunctionTranslation.class));
  51         }
  52         return Optional.empty();
  53     }
  54
  55     private static boolean isSupportedFunction(String heatFunctionKey) {
  56         return functionTranslationImplMap.containsKey(heatFunctionKey);
  57     }
  58
  59 }
  60