/* * 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.catalina.ha;
/** * A <b>ClusterDeployer</b> interface allows to plug in and out the different deployment implementations
*/ publicinterface ClusterDeployer extends ChannelListener {
/** * Start the cluster deployer, the owning container will invoke this * * @throws Exception - if failure to start cluster
*/ void start() throws Exception;
/** * Stops the cluster deployer, the owning container will invoke this * * @throws LifecycleException Error stopping cluster deployer
*/ void stop() throws LifecycleException;
/** * Install a new web application, whose web application archive is at the specified URL, into this container and all * the other members of the cluster with the specified context name. * <p> * If this application is successfully installed locally, a ContainerEvent of type <code>INSTALL_EVENT</code> will * be sent to all registered listeners, with the newly created <code>Context</code> as an argument. * * @param contextName The context name to which this application should be installed (must be unique) * @param webapp A WAR file or unpacked directory structure containing the web application to be installed * * @exception IllegalArgumentException if the specified context name is malformed * @exception IllegalStateException if the specified context name is already attached to an existing web * application * @exception IOException if an input/output error was encountered during installation
*/ void install(String contextName, File webapp) throws IOException;
/** * Remove an existing web application, attached to the specified context name. If this application is successfully * removed, a ContainerEvent of type <code>REMOVE_EVENT</code> will be sent to all registered listeners, with the * removed <code>Context</code> as an argument. Deletes the web application war file and/or directory if they exist * in the Host's appBase. * * @param contextName The context name of the application to be removed * @param undeploy boolean flag to remove web application from server * * @exception IllegalArgumentException if the specified context name is malformed * @exception IllegalArgumentException if the specified context name does not identify a currently installed web * application * @exception IOException if an input/output error occurs during removal
*/ void remove(String contextName, boolean undeploy) throws IOException;
/** * call from container Background Process
*/ void backgroundProcess();
/** * Returns the cluster the cluster deployer is associated with * * @return CatalinaCluster
*/
CatalinaCluster getCluster();
/** * Associates the cluster deployer with a cluster * * @param cluster CatalinaCluster
*/ void setCluster(CatalinaCluster cluster);
}
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