Java tutorial
/* * Copyright 2007 Bruce Fancher * * 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. */ package com.iterative.groovy.service; import groovy.lang.Binding; import java.util.Map; import org.apache.commons.logging.Log; import org.apache.commons.logging.LogFactory; /** * * @author Bruce Fancher * */ public abstract class GroovyService { protected Log logger = LogFactory.getLog(getClass()); private Map<String, Object> bindings; private boolean launchAtStart; private Thread serverThread; public GroovyService() { super(); } public GroovyService(Map<String, Object> bindings) { this(); this.bindings = bindings; } public void launchInBackground() { serverThread = new Thread() { @Override public void run() { try { launch(); } catch (Exception e) { e.printStackTrace(); } } }; serverThread.setDaemon(true); serverThread.start(); } public abstract void launch(); protected Binding createBinding() { Binding binding = new Binding(); if (bindings != null) { for (Map.Entry<String, Object> nextBinding : bindings.entrySet()) { binding.setVariable(nextBinding.getKey(), nextBinding.getValue()); } } return binding; } public void initialize() { if (launchAtStart) { launchInBackground(); } } public void destroy() { } public void setBindings(final Map<String, Object> bindings) { this.bindings = bindings; } public boolean isLaunchAtStart() { return launchAtStart; } public void setLaunchAtStart(boolean launchAtStart) { this.launchAtStart = launchAtStart; } }