/** * 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.camel; /** * Allows objects to be notified when {@link CamelContext} has done all work when starting. * <p/> * This can be used to perform any custom work when the entire {@link CamelContext} has been initialized and <b>almost</b> * started. For example this ensures that all Camel routes have been started and are up and running, before this callback * is invoked. * <p/> * The state of {@link CamelContext} may still be in <tt>starting</tt> when this callback is invoked, this is by design. * The callback is invoked as the last step during all the processes that occur during starting {@link CamelContext}. * <p/> * For example the QuartzComponent leverages this to ensure the Quartz scheduler does not start until after all the * Camel routes and services have already been started. * * @version */ public interface StartupListener { /** * Callback invoked when the {@link CamelContext} has just been started. * * @param context the Camel context * @param alreadyStarted whether or not the {@link CamelContext} already has been started. For example the context * could already have been started, and then a service is added/started later which still * triggers this callback to be invoked. * @throws Exception can be thrown in case of errors to fail the startup process and have the application * fail on startup. */ void onCamelContextStarted(CamelContext context, boolean alreadyStarted) throws Exception; }