| /** |
| * 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.hadoop.hdfs; |
| |
| import java.util.ArrayList; |
| import java.util.List; |
| |
| import org.apache.log4j.AppenderSkeleton; |
| import org.apache.log4j.spi.LoggingEvent; |
| import org.apache.log4j.spi.ThrowableInformation; |
| |
| /** |
| * Used to verify that certain exceptions or messages are present in log output. |
| */ |
| public class LogVerificationAppender extends AppenderSkeleton { |
| private final List<LoggingEvent> log = new ArrayList<LoggingEvent>(); |
| |
| @Override |
| public boolean requiresLayout() { |
| return false; |
| } |
| |
| @Override |
| protected void append(final LoggingEvent loggingEvent) { |
| log.add(loggingEvent); |
| } |
| |
| @Override |
| public void close() { |
| } |
| |
| public List<LoggingEvent> getLog() { |
| return new ArrayList<LoggingEvent>(log); |
| } |
| |
| public int countExceptionsWithMessage(final String text) { |
| int count = 0; |
| for (LoggingEvent e: getLog()) { |
| ThrowableInformation t = e.getThrowableInformation(); |
| if (t != null) { |
| String m = t.getThrowable().getMessage(); |
| if (m.contains(text)) { |
| count++; |
| } |
| } |
| } |
| return count; |
| } |
| |
| public int countLinesWithMessage(final String text) { |
| int count = 0; |
| for (LoggingEvent e: getLog()) { |
| String msg = e.getRenderedMessage(); |
| if (msg != null && msg.contains(text)) { |
| count++; |
| } |
| } |
| return count; |
| } |
| } |