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Elasticsearch subproject :server
/*
* Licensed to Elasticsearch under one or more contributor
* license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright
* ownership. Elasticsearch 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.elasticsearch.common.bytes;
import org.apache.lucene.util.BytesRef;
public final class BytesArray extends BytesReference {
public static final BytesArray EMPTY = new BytesArray(BytesRef.EMPTY_BYTES, 0, 0);
private final byte[] bytes;
private final int offset;
private final int length;
public BytesArray(String bytes) {
this(new BytesRef(bytes));
}
public BytesArray(BytesRef bytesRef) {
this(bytesRef, false);
}
public BytesArray(BytesRef bytesRef, boolean deepCopy) {
if (deepCopy) {
bytesRef = BytesRef.deepCopyOf(bytesRef);
}
bytes = bytesRef.bytes;
offset = bytesRef.offset;
length = bytesRef.length;
}
public BytesArray(byte[] bytes) {
this(bytes, 0, bytes.length);
}
public BytesArray(byte[] bytes, int offset, int length) {
this.bytes = bytes;
this.offset = offset;
this.length = length;
}
@Override
public byte get(int index) {
return bytes[offset + index];
}
@Override
public int length() {
return length;
}
@Override
public BytesReference slice(int from, int length) {
if (from < 0 || (from + length) > this.length) {
throw new IllegalArgumentException("can't slice a buffer with length [" + this.length + "], with slice parameters from [" + from + "], length [" + length + "]");
}
return new BytesArray(bytes, offset + from, length);
}
public byte[] array() {
return bytes;
}
public int offset() {
return offset;
}
@Override
public BytesRef toBytesRef() {
return new BytesRef(bytes, offset, length);
}
@Override
public long ramBytesUsed() {
return bytes.length;
}
}