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Copy pathByteArrayWrapper.java
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56 lines (48 loc) · 1.53 KB
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/*
* Copyright 2010 sasc
*
* 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 sasc.util;
import java.util.Arrays;
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(Util.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;
}
}