| /* |
| * 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.meecrowave.jolokia; |
| |
| import org.apache.meecrowave.Meecrowave; |
| import org.apache.meecrowave.runner.Cli; |
| import org.apache.meecrowave.runner.cli.CliOption; |
| import org.jolokia.http.AgentServlet; |
| |
| import javax.servlet.ServletContainerInitializer; |
| import javax.servlet.ServletContext; |
| import javax.servlet.ServletException; |
| import javax.servlet.ServletRegistration; |
| import java.util.Set; |
| |
| import static java.util.Optional.ofNullable; |
| |
| public class JolokiaInitializer implements ServletContainerInitializer { |
| @Override |
| public void onStartup(final Set<Class<?>> set, final ServletContext servletContext) throws ServletException { |
| final Meecrowave.Builder config = Meecrowave.Builder.class.cast(servletContext.getAttribute("meecrowave.configuration")); |
| final JolokiaConfiguration configuration = config.getExtension(JolokiaConfiguration.class); |
| if (!configuration.isActive()) { |
| return; |
| } |
| try { // if hawtio is setup skip it |
| servletContext.getClassLoader().loadClass("io.hawt.web.UserServlet"); |
| if (config.getExtension(HawtioInitializer.HawtioConfiguration.class).isActive()) { |
| return; |
| } |
| } catch (final ClassNotFoundException e) { |
| // that's what we want |
| } |
| |
| final ServletRegistration.Dynamic jolokia = servletContext.addServlet("jolokia", AgentServlet.class); |
| jolokia.setLoadOnStartup(1); |
| final String mapping = ofNullable(configuration.getMapping()).orElse("/jolokia/*"); |
| jolokia.addMapping(mapping); |
| servletContext.log("Installed Jolokia on " + mapping); |
| } |
| |
| public static class JolokiaConfiguration implements Cli.Options { |
| @CliOption(name = "jolokia-mapping", description = "Jolokia endpoint") |
| private String mapping; |
| |
| @CliOption(name = "jolokia-active", description = "Should Jolokia be deployed (only if hawt.io is not)") |
| private boolean active = true; |
| |
| public boolean isActive() { |
| return active; |
| } |
| |
| public void setActive(final boolean active) { |
| this.active = active; |
| } |
| |
| public String getMapping() { |
| return mapping; |
| } |
| |
| public void setMapping(final String mapping) { |
| this.mapping = mapping; |
| } |
| } |
| } |