| /* |
| * |
| * 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.qpid.server.protocol.v1_0.codec; |
| |
| |
| final class BinaryString |
| { |
| |
| private byte[] _data; |
| private int _offset; |
| private int _size; |
| private int _hashCode; |
| |
| BinaryString(final byte[] data) |
| { |
| |
| this(data, 0, data.length); |
| } |
| |
| BinaryString(final byte[] data, final int offset, final int size) |
| { |
| |
| setData(data, offset, size); |
| } |
| |
| BinaryString() |
| { |
| } |
| |
| void setData(byte[] data, int offset, int size) |
| { |
| _data = data; |
| _offset = offset; |
| _size = size; |
| int hc = 0; |
| for (int i = 0; i < size; i++) |
| { |
| hc = 31*hc + (0xFF & data[offset + i]); |
| } |
| _hashCode = hc; |
| } |
| |
| |
| @Override |
| public final int hashCode() |
| { |
| return _hashCode; |
| } |
| |
| @Override |
| public final boolean equals(Object o) |
| { |
| if(!(o instanceof BinaryString)) |
| { |
| return false; |
| } |
| |
| BinaryString buf = (BinaryString) o; |
| final int size = _size; |
| if (size != buf._size) |
| { |
| return false; |
| } |
| |
| final byte[] myData = _data; |
| final byte[] theirData = buf._data; |
| int myOffset = _offset; |
| int theirOffset = buf._offset; |
| final int myLimit = myOffset + size; |
| |
| while(myOffset < myLimit) |
| { |
| if (myData[myOffset++] != theirData[theirOffset++]) |
| { |
| return false; |
| } |
| } |
| |
| return true; |
| } |
| |
| |
| } |