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Licensed to the Apache Software Foundation (ASF) under one or more contributor license agreements. See the NOTICE file distributed with this work for additional information regarding copyright ownership. The ASF licenses this file to you under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0 Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.
package org.apache.whirr;
HandlerMapFactory used in ScriptBasedClusterAction classes to create a map of action handlers. This implementation allow reuse of the same handler map by multiple ScriptBasedClusterAction instances. Note: Another motivation of extracting this code outside of ScriptBasedClusterAction is that the same code inside action implementation is not possible to mock by Mockito for JUnit testing purposes. Without this code the action classes can be plugged with another factory and remain JUnit testable.
    ServiceLoader.load(ClusterActionHandler.class);
  
    Map<StringClusterActionHandlerhandlerMap = Maps.newHashMap();
    for (ClusterActionHandler handler : ) {
      handlerMap.put(handler.getRole(), handler);
    }
    return handlerMap;
  }
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