/*
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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 2006-2007 Sun Microsystems, Inc.
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*/
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package org.opends.quicksetup;
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import java.io.File;
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import java.io.IOException;
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/**
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* This class represents the current state of a particular installation.
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*/
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public class Status {
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private static boolean lockPathInitialized;
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private Installation installation;
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/**
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* Creates a status instance of the installation indicated by the
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* input parameter.
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* @param installation physical installation
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*/
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public Status(Installation installation) {
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this.installation = installation;
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}
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/**
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* Indicates whether there is something installed or not.
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*
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* @return <CODE>true</CODE> if there is something installed under the
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* binaries that we are running, or <CODE>false</CODE> if not.
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*/
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public boolean isInstalled() {
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File rootDirectory = installation.getRootDirectory();
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return rootDirectory == null || !rootDirectory.exists() ||
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!rootDirectory.isDirectory();
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}
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/**
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* Determines whether or not the configuration has been modified for this
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* installation.
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* @return boolean where true means the configuration has been modified
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*/
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public boolean configurationHasBeenModified() {
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boolean mod = false;
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try {
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mod = installation.getCurrentConfiguration().hasBeenModified();
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} catch (IOException e) {
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// do nothing for now;
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}
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return mod;
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}
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/**
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* Determines whether or not the schema has been modified for this
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* installation.
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* @return boolean where true means the schema has been modified
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*/
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public boolean schemaHasBeenModified() {
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File f = installation.getSchemaConcatFile();
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return f.exists();
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}
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/**
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* Returns if the server is running on the given path.
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* NOTE: this method is to be called only when the OpenDS.jar class has
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* already been loaded as it uses classes in that jar.
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*
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* @return <CODE>true</CODE> if the server is running and <CODE>false</CODE>
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* otherwise.
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* @throws java.io.IOException if there was a problem reading required
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* configuration information
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*/
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public boolean isServerRunning() throws IOException {
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boolean isServerRunning;
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if (!lockPathInitialized) {
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File lockDirectory = installation.getLocksDirectory();
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System.setProperty(
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org.opends.server.util.ServerConstants.PROPERTY_LOCK_DIRECTORY,
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lockDirectory.getCanonicalPath());
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lockPathInitialized = true;
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}
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String lockFile =
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org.opends.server.core.LockFileManager.getServerLockFileName();
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StringBuilder failureReason = new StringBuilder();
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try {
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if (org.opends.server.core.LockFileManager.acquireExclusiveLock(lockFile,
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failureReason)) {
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org.opends.server.core.LockFileManager.releaseLock(lockFile,
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failureReason);
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isServerRunning = false;
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} else {
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isServerRunning = true;
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}
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}
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catch (Throwable t) {
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// Assume that if we cannot acquire the lock file the server is
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// running.
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isServerRunning = true;
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}
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return isServerRunning;
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}
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/**
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* Indicates whether there are database files under this installation.
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*
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* @return <CODE>true</CODE> if there are database files, or
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* <CODE>false</CODE> if not.
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*/
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public boolean dbFilesExist() {
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boolean dbFilesExist = false;
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File dbDir = installation.getDatabasesDirectory();
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File[] children = dbDir.listFiles();
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if ((children != null) && (children.length > 0)) {
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dbFilesExist = true;
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}
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return dbFilesExist;
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}
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}
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