// ASM: a very small and fast Java bytecode manipulation framework
// Copyright (c) 2000-2011 INRIA, France Telecom
// All rights reserved.
//
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// modification, are permitted provided that the following conditions
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// 1. Redistributions of source code must retain the above copyright
//    notice, this list of conditions and the following disclaimer.
// 2. Redistributions in binary form must reproduce the above copyright
//    notice, this list of conditions and the following disclaimer in the
//    documentation and/or other materials provided with the distribution.
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//    contributors may be used to endorse or promote products derived from
//    this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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package org.eclipse.persistence.internal.libraries.asm.commons;

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

/**
 * A {@link Remapper} using a {@link Map} to define its mapping.
 *
 * @author Eugene Kuleshov
 */
public class SimpleRemapper extends Remapper {

  private final Map<String, String> mapping;

  public SimpleRemapper(Map<String, String> mapping) {
    this.mapping = mapping;
  }

  public SimpleRemapper(String oldName, String newName) {
    this.mapping = Collections.singletonMap(oldName, newName);
  }

  @Override
  public String mapMethodName(String owner, String name, String desc) {
    String s = map(owner + '.' + name + desc);
    return s == null ? name : s;
  }

  @Override
  public String mapInvokeDynamicMethodName(String name, String desc) {
    String s = map('.' + name + desc);
    return s == null ? name : s;
  }

  @Override
  public String mapFieldName(String owner, String name, String desc) {
    String s = map(owner + '.' + name);
    return s == null ? name : s;
  }

  @Override
  public String map(String key) {
    return mapping.get(key);
  }
}
