| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF 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.apache.solr.common.util; |
| |
| public class StringBytes { |
| byte[] bytes; |
| |
| /** |
| * Offset of first valid byte. |
| */ |
| int offset; |
| |
| /** |
| * Length of used bytes. |
| */ |
| int length; |
| private int hash; |
| |
| public StringBytes(byte[] bytes, int offset, int length) { |
| reset(bytes, offset, length); |
| } |
| |
| StringBytes reset(byte[] bytes, int offset, int length) { |
| this.bytes = bytes; |
| this.offset = offset; |
| this.length = length; |
| hash = bytes == null ? 0 : Hash.murmurhash3_x86_32(bytes, offset, length, 0); |
| return this; |
| } |
| |
| @Override |
| public boolean equals(Object other) { |
| if (other == null) { |
| return false; |
| } |
| if (other instanceof StringBytes) { |
| return this.bytesEquals((StringBytes) other); |
| } |
| return false; |
| } |
| |
| boolean bytesEquals(StringBytes other) { |
| assert other != null; |
| if (length == other.length) { |
| int otherUpto = other.offset; |
| final byte[] otherBytes = other.bytes; |
| final int end = offset + length; |
| for (int upto = offset; upto < end; upto++, otherUpto++) { |
| if (bytes[upto] != otherBytes[otherUpto]) { |
| return false; |
| } |
| } |
| return true; |
| } else { |
| return false; |
| } |
| } |
| |
| @Override |
| public int hashCode() { |
| return hash; |
| } |
| } |