Android Open Source - bankomatinfos Byte Array Wrapper

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Back to project page bankomatinfos.

License

The source code is released under:

GNU General Public License

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Java Source Code

/*
 * Copyright 2010 sasc// ww w .j a va2s  .com
 *
 * 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.
 */
package at.zweng.bankomatinfos.iso7816emv;

import java.util.Arrays;
import static at.zweng.bankomatinfos.util.Utils.*;

public final class ByteArrayWrapper {

  private final byte[] data;
  private final int hashcode;

  private ByteArrayWrapper(byte[] data) {
    this.data = data;
    this.hashcode = Arrays.hashCode(data);
  }

  public static ByteArrayWrapper wrapperAround(byte[] data) {
    if (data == null) {
      throw new NullPointerException();
    }
    return new ByteArrayWrapper(data);
  }

  public static ByteArrayWrapper copyOf(byte[] data) {
    if (data == null) {
      throw new NullPointerException();
    }
    return new ByteArrayWrapper(copyByteArray(data));
  }

  @Override
  public boolean equals(Object other) {
    if (!(other instanceof ByteArrayWrapper)) {
      return false;
    }
    return Arrays.equals(data, ((ByteArrayWrapper) other).data);
  }

  @Override
  public int hashCode() {
    return hashcode;
  }
}

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