| /* |
| * Copyright 1999, 2000 ,2004 The Apache Software Foundation. |
| * |
| * Licensed 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.tester; |
| |
| |
| import java.io.*; |
| import java.util.*; |
| import javax.servlet.*; |
| import javax.servlet.http.*; |
| |
| |
| /** |
| * Logger that uses a static message buffer to facilitate intra-web-app |
| * recording and retrieval of log messages. |
| * |
| * @author Craig R. McClanahan |
| * @version $Revision$ $Date$ |
| */ |
| |
| public class StaticLogger { |
| |
| |
| // ----------------------------------------------------------- Constructors |
| |
| |
| // ------------------------------------------------------- Static Variables |
| |
| |
| /** |
| * The set of messages that have been logged. |
| */ |
| protected static ArrayList messages = new ArrayList(); |
| |
| |
| /** |
| * The index of the next message that will be retrieved by a read() call. |
| */ |
| protected static int position = 0; |
| |
| |
| // --------------------------------------------------------- Public Methods |
| |
| |
| /** |
| * Return the next message that has been logged, or <code>null</code> |
| * if there are no more messages. |
| */ |
| public static String read() { |
| |
| synchronized (messages) { |
| if (position < messages.size()) |
| return ((String) messages.get(position++)); |
| else |
| return (null); |
| } |
| |
| } |
| |
| |
| /** |
| * Reset the messages buffer and position. |
| */ |
| public static void reset() { |
| |
| synchronized (messages) { |
| messages.clear(); |
| position = 0; |
| } |
| |
| } |
| |
| |
| /** |
| * Write a new message to the end of the messages buffer. |
| * |
| * @param message The message to be added |
| */ |
| public static void write(String message) { |
| |
| synchronized (messages) { |
| messages.add(message); |
| } |
| |
| } |
| |
| |
| } |