| /** |
| * 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.activemq.filter; |
| |
| import java.util.ArrayList; |
| import java.util.List; |
| |
| import javax.jms.JMSException; |
| |
| import org.apache.activemq.command.ActiveMQDestination; |
| import org.apache.activemq.command.Message; |
| |
| /** |
| * Helper class for decomposing a Destination into a number of paths |
| * |
| * |
| */ |
| public final class DestinationPath { |
| protected static final char SEPARATOR = '.'; |
| |
| private DestinationPath() { |
| } |
| |
| public static String[] getDestinationPaths(String subject) { |
| List<String> list = new ArrayList<String>(); |
| int previous = 0; |
| int lastIndex = subject.length() - 1; |
| while (true) { |
| int idx = subject.indexOf(SEPARATOR, previous); |
| if (idx < 0) { |
| list.add(subject.substring(previous, lastIndex + 1)); |
| break; |
| } |
| list.add(subject.substring(previous, idx)); |
| previous = idx + 1; |
| } |
| String[] answer = new String[list.size()]; |
| list.toArray(answer); |
| return answer; |
| } |
| |
| public static String[] getDestinationPaths(Message message) throws JMSException { |
| return getDestinationPaths(message.getDestination()); |
| } |
| |
| public static String[] getDestinationPaths(ActiveMQDestination destination) { |
| return getDestinationPaths(destination.getPhysicalName()); |
| } |
| |
| /** |
| * Converts the paths to a single String seperated by dots. |
| * |
| * @param paths |
| * @return |
| */ |
| public static String toString(String[] paths) { |
| StringBuffer buffer = new StringBuffer(); |
| for (int i = 0; i < paths.length; i++) { |
| if (i > 0) { |
| buffer.append(SEPARATOR); |
| } |
| String path = paths[i]; |
| if (path == null) { |
| buffer.append("*"); |
| } else { |
| buffer.append(path); |
| } |
| } |
| return buffer.toString(); |
| } |
| } |