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/*
 * Copyright (c) 2010-2015 Pivotal Software, Inc. All rights reserved.
 *
 * Licensed 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. See accompanying
 * LICENSE file.
 */
package quickstart;

import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.lang.reflect.Method;

/**
 * Provides a main which delegates to another main for testing after waiting
 * for one input.
 * 
 * @author Kirk Lund
 */
public class MainLauncher {
  public static void main(String... args) throws Exception {
    assert args.length > 0;
    String innerMain = args[0];
    Class clazz = Class.forName(innerMain);
    
    //System.out.println(MainLauncher.class.getSimpleName() + " waiting to start...");
    BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(System.in));
    bufferedReader.readLine();
    
    //System.out.println(MainLauncher.class.getSimpleName() + " delegating...");
    Object[] innerArgs = new String[args.length - 1];
    for (int i = 0; i < innerArgs.length; i++) {
      innerArgs[i] = args[i + 1];
    }
    Method mainMethod = clazz.getMethod("main", String[].class);
    mainMethod.invoke(null, new Object[] { innerArgs });
  }
}