Java tutorial
package com.inmobi.grill.server; /* * #%L * Grill Server * %% * Copyright (C) 2014 Inmobi * %% * 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. * #L% */ import javax.ws.rs.GET; import javax.ws.rs.Produces; import javax.ws.rs.Path; import javax.ws.rs.core.MediaType; import org.apache.commons.lang.StringUtils; @Path("/") public class IndexResource { @GET @Produces(MediaType.TEXT_PLAIN) public String getMessage() { return "Grill server is up!"; } @GET @Path("/index") @Produces(MediaType.TEXT_PLAIN) public String getIndexMessage() { return "Hello World! from grill"; } @GET @Path("/admin/stack") @Produces(MediaType.TEXT_PLAIN) public String getThreadDump() { ThreadGroup topThreadGroup = Thread.currentThread().getThreadGroup(); while (topThreadGroup.getParent() != null) { topThreadGroup = topThreadGroup.getParent(); } Thread[] threads = new Thread[topThreadGroup.activeCount()]; int nr = topThreadGroup.enumerate(threads); StringBuilder builder = new StringBuilder(); builder.append("Total number of threads:").append(nr).append("\n"); for (int i = 0; i < nr; i++) { builder.append(threads[i].getName()).append("\n\tState: ").append(threads[i].getState()).append("\n"); String stackTrace = StringUtils.join(threads[i].getStackTrace(), "\n"); builder.append(stackTrace); builder.append("\n----------------------\n\n"); } return builder.toString(); } @GET @Path("/admin/status") @Produces(MediaType.TEXT_PLAIN) public String getStatus() { return GrillServices.get().getServiceState().toString(); } }