twill-api/src/main/java/org/apache/twill/internal/DefaultEventHandlerSpecification.java

/*
 * 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.twill.internal;

import org.apache.twill.api.EventHandler;
import org.apache.twill.api.EventHandlerSpecification;

import java.util.Collections;
import java.util.HashMap;
import java.util.Map;

/**
 *
 */
public class DefaultEventHandlerSpecification implements EventHandlerSpecification {

  private final String className;
  private final Map<String, String> configs;

  public DefaultEventHandlerSpecification(String className, Map<String, String> configs) {
    this.className = className;
    this.configs = configs;
  }

  public DefaultEventHandlerSpecification(EventHandler eventHandler) {
    EventHandlerSpecification spec = eventHandler.configure();
    this.className = eventHandler.getClass().getName();
    this.configs = Collections.unmodifiableMap(new HashMap<String, String>(spec.getConfigs()));
  }

  @Override
  public String getClassName() {
    return className;
  }

  @Override
  public Map<String, String> getConfigs() {
    return configs;
  }
}