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/*
 ************************************************************************
 *
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * Copyright 2000, 2010 Oracle and/or its affiliates.
 *
 * OpenOffice.org - a multi-platform office productivity suite
 *
 * This file is part of OpenOffice.org.
 *
 * OpenOffice.org is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License version 3
 * only, as published by the Free Software Foundation.
 *
 * OpenOffice.org is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Lesser General Public License version 3 for more details
 * (a copy is included in the LICENSE file that accompanied this code).
 *
 * You should have received a copy of the GNU Lesser General Public License
 * version 3 along with OpenOffice.org.  If not, see
 * <http://www.openoffice.org/license.html>
 * for a copy of the LGPLv3 License.
 *
 ************************************************************************/

/*
 * Created on 31.10.2003
 *
 * To change the template for this generated file go to
 * Window>Preferences>Java>Code Generation>Code and Comments
 */
package com.sun.star.wizards.common;

import java.util.List;
import java.util.Vector;

import com.sun.star.beans.Property;
import com.sun.star.lang.XMultiServiceFactory;
import com.sun.star.sdbc.XResultSet;
import com.sun.star.sdbc.XRow;
import com.sun.star.ucb.*;
import com.sun.star.uno.UnoRuntime;

/**
 * @author rpiterman
 * This class is used to copy the content of a folder to
 * another folder.
 * There is an incosistency with argument order.
 * It should be always: dir,filename.
 */
public class UCB
{

    private Object ucb;
    private FileAccess fa;

    public UCB(XMultiServiceFactory xmsf) throws Exception
    {
        String[] keys = new String[2];
        keys[ 0 ] = "Local";
        keys[ 1 ] = "Office";
        ucb = xmsf.createInstanceWithArguments(
            "com.sun.star.ucb.UniversalContentBroker", keys );
        fa = new FileAccess(xmsf);
    }

    public void deleteDirContent(String dir)
        throws Exception
    {
        if (!fa.exists(dir,true))
        {
          return;
        }
        List l = listFiles(dir,null);
        for (int i = 0; i<l.size(); i++)
        {
            delete(FileAccess.connectURLs(dir ,(String)l.get(i)));
    }
    }

    public void delete(String filename) throws Exception
    {
        //System.out.println("UCB.delete(" + filename);
        executeCommand( getContent(filename),"delete",Boolean.TRUE);
    }

    public void copy(String sourceDir, String targetDir) throws Exception
    {
        copy(sourceDir,targetDir,(Verifier)null);
    }

    public void copy(String sourceDir, String targetDir, Verifier verifier) throws Exception
    {
        List files = listFiles(sourceDir,verifier);
        for (int i = 0; i<files.size(); i++)
        {
          copy(sourceDir, (String)files.get(i), targetDir);
        }

    }

    public void copy(String sourceDir, String filename, String targetDir, String targetName) throws Exception
    {
        if (!fa.exists(targetDir,true))
        {
          fa.fileAccess.createFolder(targetDir);
        }
        //System.out.println("UCB.copy(" + sourceDir + ", " + filename +  ", " + targetDir+ ", " + targetName);
        executeCommand(ucb, "globalTransfer", copyArg(sourceDir,filename, targetDir,targetName));
    }

    /**
     * @deprecated
     * @param sourceDir
     * @param filename
     * @param targetDir
     * @throws Exception
     */
    public void copy(String sourceDir, String filename, String targetDir) throws Exception
    {
        copy(sourceDir,filename, targetDir, "");
    }

    /**
     * target name can be "", in which case the name stays lige the source name
     * @param sourceDir
     * @param sourceFilename
     * @param targetDir
     * @param targetFilename
     * @return
     */
    public GlobalTransferCommandArgument copyArg(String sourceDir, String sourceFilename, String targetDir, String targetFilename)
    {

        GlobalTransferCommandArgument aArg = new GlobalTransferCommandArgument();
        aArg.Operation = TransferCommandOperation.COPY;
        aArg.SourceURL = fa.getURL(sourceDir,sourceFilename);
        aArg.TargetURL = targetDir;
        aArg.NewTitle = targetFilename;
        // fail, if object with same name exists in target folder
        aArg.NameClash = NameClash.OVERWRITE;
        return aArg;
    }

    public Object executeCommand(Object xContent, String aCommandName, Object aArgument)
        throws com.sun.star.ucb.CommandAbortedException,
            com.sun.star.uno.Exception
    {
        XCommandProcessor xCmdProcessor = (XCommandProcessor)UnoRuntime.queryInterface(
            XCommandProcessor.class, xContent);
        Command aCommand  = new Command();
        aCommand.Name     = aCommandName;
        aCommand.Handle   = -1; // not available
        aCommand.Argument = aArgument;
        return xCmdProcessor.execute(aCommand, 0, null);
    }

    public List listFiles(String path, Verifier verifier) throws Exception
    {
        Object xContent = getContent(path);

        OpenCommandArgument2 aArg = new OpenCommandArgument2();
        aArg.Mode = OpenMode.ALL;
        aArg.Priority = 32768;

        // Fill info for the properties wanted.
        aArg.Properties = new Property[] {new Property()};

        aArg.Properties[0].Name = "Title";
        aArg.Properties[0].Handle = -1;

        XDynamicResultSet xSet;

        xSet = (XDynamicResultSet)UnoRuntime.queryInterface(
          XDynamicResultSet.class,executeCommand(xContent, "open", aArg));

        XResultSet xResultSet = xSet.getStaticResultSet();

        List files = new Vector();

        if (xResultSet.first())
        {
            // obtain XContentAccess interface for child content access and XRow for properties
            XContentAccess xContentAccess = (XContentAccess)UnoRuntime.queryInterface(
                XContentAccess.class, xResultSet);
            XRow xRow = (XRow)UnoRuntime.queryInterface(XRow.class, xResultSet);
            do
            {
                // Obtain URL of child.
                String aId = xContentAccess.queryContentIdentifierString();
                // First column: Title (column numbers are 1-based!)
                String aTitle = xRow.getString(1);
                if (aTitle.length() == 0 && xRow.wasNull())
                {
                    ; //ignore
                }
                else
                {
                    files.add(aTitle);
                }
            }
            while (xResultSet.next()); // next child
        }

        if (verifier != null)
        {
            for (int i = 0; i<files.size(); i++)
            {
                if (!verifier.verify(files.get(i)))
                {
                    files.remove(i--);
                }
            }
        }

        return files;
    }

    public Object getContentProperty(Object content, String propName, Class type)
        throws Exception
    {
        Property[] pv = new Property[1];
        pv[0] = new Property();
        pv[0].Name = propName;
        pv[0].Handle = -1;

        Object row = executeCommand(content,"getPropertyValues",pv);
        XRow xrow = (XRow)UnoRuntime.queryInterface(XRow.class,row);
        if (type.equals(String.class))
        {
           return xrow.getString(1);
        }
        else if (type.equals(Boolean.class))
        {
            return xrow.getBoolean(1) ? Boolean.TRUE : Boolean.FALSE;
        }
        else if (type.equals(Integer.class))
        {
            return new Integer(xrow.getInt(1));
        }
        else if (type.equals(Short.class))
        {
            return new Short(xrow.getShort(1));
        }
        else
        {
            return null;
        }

    }

    public Object getContent(String path) throws Exception
    {
        //System.out.println("Getting Content for : " + path);
        XContentIdentifier id = ((XContentIdentifierFactory) UnoRuntime.queryInterface(XContentIdentifierFactory.class, ucb)).createContentIdentifier(path);

        return ((XContentProvider)UnoRuntime.queryInterface(
          XContentProvider.class,ucb)).queryContent(id);
    }

    public static interface Verifier
    {

        public boolean verify(Object object);
    }
}