/*
* 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.cocoon.monitoring.servletservice;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;
import javax.management.MalformedObjectNameException;
import javax.management.ObjectName;
import javax.servlet.Servlet;
import javax.servlet.ServletConfig;
import javax.servlet.ServletContext;
import org.apache.cocoon.servletservice.ServletServiceContext;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.springframework.jmx.export.MBeanExporter;
public class ServletServiceMonitorInitializer {
private final Log logger = LogFactory.getLog(this.getClass());
public ServletServiceMonitorInitializer(Map<String, Servlet> servlets, MBeanExporter exporter) {
List<String> servletNames = new ArrayList<String>();
for (Servlet servlet : servlets.values()) {
ServletConfig servletConfig = servlet.getServletConfig();
// get only ServletServices servlets
ServletContext servletContext = servletConfig.getServletContext();
String servletName = servletConfig.getServletName();
if (!(servletContext instanceof ServletServiceContext)) {
this.logger.info(servletName + " isn't Servlet-Service servlet, it will be ignored.");
continue;
}
ServletServiceContext servletServiceContext = (ServletServiceContext) servletContext;
ObjectName name = null;
String stringName = "org.apache.cocoon:group=ServletServices,name=["
+ this.getMountPath(servletServiceContext) + "] " + servletName;
try {
name = new ObjectName(stringName);
} catch (MalformedObjectNameException e) {
this.logger.error("The string passed as a parameter does not have the right format.", e);
continue;
} catch (NullPointerException e) {
this.logger.fatal("Should never happened. Value of name parameter always is different than null.", e);
continue;
}
if (name == null) {
this.logger.error("ObjectName is null, something strange happen. Should never happen.");
continue;
}
ServletServiceMonitor servletServiceMonitor = new ServletServiceMonitor(servlet);
if (!servletNames.contains(stringName)) {
exporter.registerManagedResource(servletServiceMonitor, name);
servletNames.add(stringName);
}
}
}
private String getMountPath(ServletServiceContext servletServiceContext) {
String mountPath = servletServiceContext.getMountPath();
if (mountPath != null && !mountPath.startsWith("/")) {
return "/" + mountPath;
}
if (mountPath == null) {
return "not mounted";
}
return mountPath;
}
}