/*
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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 2007 Sun Microsystems, Inc.
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*/
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package org.opends.server.core;
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import org.opends.server.types.DN;
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import org.opends.server.types.Operation;
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import org.opends.server.workflowelement.WorkflowElement;
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/**
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* This class implements the workflow interface. Each task in the workflow
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* is implemented by a WorkflowElement. All the tasks in the workflow are
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* structured in a tree of tasks and the root node of the task tree is
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* stored in the Workflow class itself. To execute a workflow, one just need
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* to call the execute method on the root node of the task tree. Then each
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* task in turn will execute its subordinate nodes and synchronizes them
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* as needed.
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*/
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public class WorkflowImpl implements Workflow
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{
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// The root of the workflow task tree.
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private WorkflowElement rootWorkflowElement = null;
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// The base DN of the data handled by the workflow.
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private DN baseDN = null;
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// Flag indicating whether the workflow root node of the task tree is
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// handling a private local backend.
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//
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// A private local backend is used by the server to store "private data"
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// such as schemas, tasks, monitoring data, configuration data... Such
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// private data are not returned upon a subtree search on the root DSE.
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// Also it is not planned to have anything but a single node task tree
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// to handle private local backend. So workflows used for proxy and
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// virtual will always be made public (ie. not private). So, unless the
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// rootWorkflowElement is handling a private local backend, the isPrivate
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// flag will always return false.
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private boolean isPrivate = false;
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/**
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* Creates a new instance of a workflow implementation. To define a worfklow
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* one needs to provide a task tree root node (the rootWorkflowElement) and
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* a base DN to identify the data set upon which the tasks can be applied.
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*
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* The rootWorkflowElement must not be null.
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*
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* @param baseDN identifies the data handled by the workflow
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* @param rootWorkflowElement the root node of the workflow task tree
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*/
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public WorkflowImpl(
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DN baseDN,
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WorkflowElement rootWorkflowElement
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)
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{
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this.baseDN = baseDN;
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this.rootWorkflowElement = rootWorkflowElement;
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if (this.rootWorkflowElement != null)
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{
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this.isPrivate = rootWorkflowElement.isPrivate();
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}
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}
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/**
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* Gets the base DN of the data set being handled by the workflow.
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*
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* @return the workflow base DN
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*/
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public DN getBaseDN()
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{
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return baseDN;
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}
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/**
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* Indicates whether the root node of the workflow task tree is
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* handling a private local backend.
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*
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* @return <code>true</code> if the workflow encapsulates a private local
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* backend
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*/
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public boolean isPrivate()
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{
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return isPrivate;
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}
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/**
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* Executes all the tasks defined by the workflow task tree for a given
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* operation.
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*
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* @param operation the operation to execute
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*/
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public void execute(
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Operation operation
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)
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{
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rootWorkflowElement.execute(operation);
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}
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}
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