| /************************************************************** |
| * |
| * 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 com.sun.star.lib.uno.environments.remote; |
| |
| import com.sun.star.uno.UnoRuntime; |
| import java.io.UnsupportedEncodingException; |
| import java.math.BigInteger; |
| import java.util.Arrays; |
| |
| public final class ThreadId { |
| public static ThreadId createFresh() { |
| BigInteger c; |
| synchronized (PREFIX) { |
| c = count; |
| count = count.add(BigInteger.ONE); |
| } |
| try { |
| return new ThreadId((PREFIX + c).getBytes("UTF-8")); |
| } catch (UnsupportedEncodingException e) { |
| throw new RuntimeException("this cannot happen: " + e); |
| } |
| } |
| |
| public ThreadId(byte[] id) { |
| this.id = id; |
| } |
| |
| public boolean equals(Object obj) { |
| return obj instanceof ThreadId |
| && Arrays.equals(id, ((ThreadId) obj).id); |
| } |
| |
| public int hashCode() { |
| int h = hash; |
| if (h == 0) { |
| // Same algorithm as java.util.List.hashCode (also see Java 1.5 |
| // java.util.Arrays.hashCode(byte[])): |
| h = 1; |
| for (int i = 0; i < id.length; ++i) { |
| h = 31 * h + id[i]; |
| } |
| hash = h; |
| } |
| return h; |
| } |
| |
| public String toString() { |
| StringBuffer b = new StringBuffer("[ThreadId:"); |
| for (int i = 0; i < id.length; ++i) { |
| String n = Integer.toHexString(id[i] & 0xFF); |
| if (n.length() == 1) { |
| b.append('0'); |
| } |
| b.append(n); |
| } |
| b.append(']'); |
| return b.toString(); |
| } |
| |
| public byte[] getBytes() { |
| return id; |
| } |
| |
| private static final String PREFIX |
| = "java:" + UnoRuntime.getUniqueKey() + ":"; |
| private static BigInteger count = BigInteger.ZERO; |
| |
| private byte[] id; |
| private int hash = 0; |
| } |