/*
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* CDDL HEADER START
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*
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* The contents of this file are subject to the terms of the
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* Common Development and Distribution License, Version 1.0 only
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* (the "License"). You may not use this file except in compliance
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* with the License.
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*
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* You can obtain a copy of the license at
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* trunk/opends/resource/legal-notices/OpenDS.LICENSE
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* or https://OpenDS.dev.java.net/OpenDS.LICENSE.
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* See the License for the specific language governing permissions
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* and limitations under the License.
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*
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* When distributing Covered Code, include this CDDL HEADER in each
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* file and include the License file at
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* trunk/opends/resource/legal-notices/OpenDS.LICENSE. If applicable,
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* add the following below this CDDL HEADER, with the fields enclosed
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* by brackets "[]" replaced with your own identifying * information:
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* Portions Copyright [yyyy] [name of copyright owner]
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*
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* CDDL HEADER END
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*
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*
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* Portions Copyright 2006 Sun Microsystems, Inc.
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*/
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package org.opends.server.tasks;
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import java.util.LinkedHashSet;
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import java.util.List;
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import org.opends.server.backends.task.Task;
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import org.opends.server.backends.task.TaskState;
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import org.opends.server.core.DirectoryServer;
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import org.opends.server.types.Attribute;
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import org.opends.server.types.AttributeType;
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import org.opends.server.types.AttributeValue;
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import org.opends.server.types.DirectoryException;
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import org.opends.server.types.Entry;
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import static org.opends.server.config.ConfigConstants.*;
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import static org.opends.server.loggers.Debug.*;
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import static org.opends.server.messages.MessageHandler.*;
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import static org.opends.server.messages.TaskMessages.*;
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import static org.opends.server.util.StaticUtils.*;
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/**
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* This class provides an implementation of a Directory Server task that can be
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* used to stop the server.
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*/
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public class ShutdownTask
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extends Task
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{
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/**
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* The fully-qualified name of this class for debugging purposes.
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*/
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private static final String CLASS_NAME =
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"org.opends.server.tasks.ShutdownTask";
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// Indicates whether to use an exit code that indicates the server should be
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// restarted.
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private boolean restart;
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// The shutdown message that will be used.
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private String shutdownMessage;
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/**
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* Performs any task-specific initialization that may be required before
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* processing can start. This default implementation does not do anything,
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* but subclasses may override it as necessary. This method will be called at
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* the time the task is scheduled, and therefore any failure in this method
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* will be returned to the client.
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*
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* @throws DirectoryException If a problem occurs during initialization that
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* should be returned to the client.
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*/
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public void initializeTask()
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throws DirectoryException
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{
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assert debugEnter(CLASS_NAME, "initializeTask");
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// FIXME -- Do we need any special authorization here?
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// See if the entry contains a shutdown message. If so, then use it.
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// Otherwise, use a default message.
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Entry taskEntry = getTaskEntry();
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restart = false;
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shutdownMessage = getMessage(MSGID_TASK_SHUTDOWN_DEFAULT_MESSAGE,
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String.valueOf(taskEntry.getDN()));
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AttributeType attrType =
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DirectoryServer.getAttributeType(ATTR_SHUTDOWN_MESSAGE, true);
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List<Attribute> attrList = taskEntry.getAttribute(attrType);
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if ((attrList != null) && (attrList.size() > 0))
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{
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Attribute attr = attrList.get(0);
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LinkedHashSet<AttributeValue> values = attr.getValues();
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if ((values != null) && (! values.isEmpty()))
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{
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String valueString = values.iterator().next().getStringValue();
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shutdownMessage = getMessage(MSGID_TASK_SHUTDOWN_CUSTOM_MESSAGE,
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String.valueOf(taskEntry.getDN()),
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String.valueOf(valueString));
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}
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}
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attrType = DirectoryServer.getAttributeType(ATTR_RESTART_SERVER, true);
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attrList = taskEntry.getAttribute(attrType);
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if ((attrList != null) && (attrList.size() > 0))
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{
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Attribute attr = attrList.get(0);
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LinkedHashSet<AttributeValue> values = attr.getValues();
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if ((values != null) && (! values.isEmpty()))
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{
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String valueString =
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toLowerCase(values.iterator().next().getStringValue());
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restart = (valueString.equals("true") || valueString.equals("yes") ||
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valueString.equals("on") || valueString.equals("1"));
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}
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}
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}
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/**
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* Performs the actual core processing for this task. This method should not
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* return until all processing associated with this task has completed.
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*
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* @return The final state to use for the task.
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*/
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public TaskState runTask()
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{
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assert debugEnter(CLASS_NAME, "runTask");
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// This is a unique case in that the shutdown cannot finish until this task
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// is finished, but this task can't really be finished until the shutdown is
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// complete. To work around this catch-22, we'll spawn a separate thread
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// that will be responsible for really invoking the shutdown and then this
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// method will return. We'll have to use different types of threads
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// depending on whether we're doing a restart or a shutdown.
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if (restart)
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{
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RestartTaskThread restartThread = new RestartTaskThread(shutdownMessage);
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restartThread.start();
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}
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else
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{
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ShutdownTaskThread shutdownThread =
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new ShutdownTaskThread(shutdownMessage);
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shutdownThread.start();
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}
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return TaskState.COMPLETED_SUCCESSFULLY;
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}
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}
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