/*
* RHQ Management Platform
* Copyright (C) 2005-2013 Red Hat, Inc.
* All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation version 2 of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
*/
package org.rhq.core.pluginapi.util;
import java.io.File;
import java.io.FilenameFilter;
/**
* Helps to find a response time filter log file.
*
* @author Thomas Segismont
*/
public class ResponseTimeLogFinder {
public static final File FALLBACK_RESPONSE_TIME_LOG_FILE_DIRECTORY = new File(System.getProperty("java.io.tmpdir")
+ File.separator + "rhq" + File.separator + "rt");
private ResponseTimeLogFinder() {
// Utility class
}
/**
* @param contextPath context path of the monitored web application
* @param responseTimeLogFileDirectory Where to search for the response time log file of the web application.
* @return the absolute file path of the response time log file or null if not found or responseTimeLogFileDirectory
* does not exist or is not a directory.
* @throws IllegalArgumentException if context path is null or does not start with a slash, or if
* responseTimeLogFileDirectory is null
*/
public static String findResponseTimeLogFileInDirectory(String contextPath, File responseTimeLogFileDirectory) {
if (contextPath == null) {
throw new IllegalArgumentException("contextPath is null");
}
if (!contextPath.startsWith("/")) {
throw new IllegalArgumentException("contextPath does not start with '/': " + contextPath);
}
if (responseTimeLogFileDirectory == null) {
throw new IllegalArgumentException("responseTimeLogFileDirectory is null");
}
if (responseTimeLogFileDirectory.exists() && responseTimeLogFileDirectory.isDirectory()) {
// Handle the root context path
// Remove leading slash and convert slashes to underscores
final String rtFileSuffix = (contextPath.equals("/") ? "ROOT" : contextPath).substring(1).replace('/', '_')
+ "_rt.log";
File[] files = responseTimeLogFileDirectory.listFiles(new FilenameFilter() {
@Override
public boolean accept(File dir, String name) {
return name.endsWith(rtFileSuffix);
}
});
if (files != null && files.length == 1) {
return files[0].getAbsolutePath();
}
}
return null;
}
}