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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 *
 * Copyright 1997-2008 Sun Microsystems, Inc. All rights reserved.
 *
 * The contents of this file are subject to the terms of either the GNU
 * General Public License Version 2 only ("GPL") or the Common Development
 * and Distribution License("CDDL") (collectively, the "License").  You
 * may not use this file except in compliance with the License. You can obtain
 * a copy of the License at https://glassfish.dev.java.net/public/CDDL+GPL.html
 * or glassfish/bootstrap/legal/LICENSE.txt.  See the License for the specific
 * language governing permissions and limitations under the License.
 *
 * When distributing the software, include this License Header Notice in each
 * file and include the License file at glassfish/bootstrap/legal/LICENSE.txt.
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 * as provided by Sun in the GPL Version 2 section of the License file that
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 * Version 2] license."  If you don't indicate a single choice of license, a
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 * its licensees as provided above.  However, if you add GPL Version 2 code
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package org.glassfish.embed;

import static com.sun.enterprise.universal.glassfish.SystemPropertyConstants.*;
import static org.glassfish.embed.ServerConstants.*;
import com.sun.enterprise.universal.io.SmartFile;
import com.sun.enterprise.util.io.FileUtils;
import java.io.File;
import java.net.MalformedURLException;
import java.net.URL;

/**
 * There are currently some ugly things we MUST do:
 * 
 * write out our hard-wired domain.xml to disk for use by core V3
 * 
write out magic JDBC xml files to disk
 * 
 * We are concentrating these things here for ease of maintenance.
 *
 * @author bnevins
 */
public final class EmbeddedFileSystem {

    public static void setSystemProps() {
        efs.setSystemPropsInternal();
    }

    public static File getInstallRoot() {
        return efs.installRoot;
    }

    public static File getInstanceRoot() {
        return efs.instanceRoot;
    }

    public static void setRoot(File f) throws EmbeddedException {
        setInstallRoot(f);
        setInstanceRoot(f);
    }
    
    public static void setInstallRoot(File f) throws EmbeddedException {
        efs.installRoot = SmartFile.sanitize(f);

        f.mkdirs();

        if (!f.isDirectory()) {
            throw new EmbeddedException("bad_install_root", f);
        }

        efs.setSystemPropsInternal();
    }

    public static void setInstanceRoot(File f) throws EmbeddedException {
        efs.instanceRoot = SmartFile.sanitize(f);

        f.mkdirs();

        if (!f.isDirectory()) {
            throw new EmbeddedException("bad_instance_root", f);
        }

        efs.setSystemPropsInternal();
    }

    public static void setAutoDelete(boolean b) {
        efs.autoDelete = b;
    }

    static void cleanup() {
        if (efs.shouldCleanup()) {
            System.out.println("Cleaning up files");
            FileUtils.whack(efs.installRoot);
            FileUtils.whack(efs.instanceRoot);
        }
    }

    static URL getDomainXmlUrl() {
        File dom = new File(getInstanceRoot(), "domain.xml");

        if(!dom.exists())
            return null;
        try {
            return dom.toURI().toURL();
        }
        catch (MalformedURLException ex) {
            return null;
        }
    }

    private EmbeddedFileSystem() {
        defaultRoots.mkdirs();
        installRoot = defaultRoots;
        instanceRoot = defaultRoots;
        setSystemPropsInternal();
    }

    private void setSystemPropsInternal() {
        System.setProperty(INSTANCE_ROOT_PROPERTY, instanceRoot.getPath());
        System.setProperty(INSTALL_ROOT_PROPERTY, installRoot.getPath());

        System.setProperty(INSTANCE_ROOT_URI_PROPERTY, instanceRoot.toURI().toString());
        System.setProperty(INSTALL_ROOT_URI_PROPERTY, installRoot.toURI().toString());
    }

    private boolean shouldCleanup() {
        // don't EVER delete if the flag is false!!!
        // don't EVER delete if they specified a directory

        if(autoDelete == true &&
                defaultRoots.equals(installRoot)    &&
                defaultRoots.equals(instanceRoot))
            return true;

        return false;
    }

    private static final File defaultRoots = SmartFile.sanitize(new File("gfe"));
    private static final EmbeddedFileSystem efs = new EmbeddedFileSystem();
    private File installRoot;
    private File instanceRoot;
    private boolean autoDelete = true;
}