// base classes
import com.sun.star.uno.UnoRuntime;
import com.sun.star.ucb.*;
import com.sun.star.beans.PropertyValue;
import com.sun.star.io.*;


/**
 * Creating a New Resource
 */
public class ResourceCreator {

    /**
     * Member properties
     */
    private  Helper    m_helper;
    private  XContent  m_content;
    private  String    m_connectString = "";
    private  String    m_contenturl    = "";
    private  String    m_name          = "";
    private  String    m_srcURL        = "";

    /**
     * Constructor.
     *
     *@param      String[]   This construtor requires the arguments:
     *                          -connect=socket,host=..., port=...
     *                          -url=..
     *                          -srcURL=... (optional).
     *                          -name=...   (optional).
     *                       See Help (method printCmdLineUsage()).
     *                       Without the arguments a new connection to a
     *                       running office cannot created.
     *@exception  java.lang.Exception
     */
    public ResourceCreator( String args[] ) throws java.lang.Exception {

        // Parse arguments
        parseArguments( args );
        String connect = getConnect();
        String url     = getContentURL();

        // Init
        m_helper = new Helper( connect, url );
        if ( url.startsWith( "file:///" )) {

            // Create UCB content
            m_content  = m_helper.createUCBContent();
        } else  {
            throw new Exception(
                "Create new resource : parameter 'url' must contain a File URL " +
                "pointing to the file system folder in that the new resource " +
                "shall be created. (Example: file:///)" );
        }
    }

    /**
     *  Create a new resource.
     *  This method requires the main and the optional arguments to be set in order to work.
     *  See Constructor.
     *
     *@return boolean  Returns true if resource successfully created, false otherwise
     *@exception  com.sun.star.ucb.CommandAbortedException
     *@exception  com.sun.star.uno.Exception
     */
    public boolean createNewResource()
        throws com.sun.star.ucb.CommandAbortedException,
               com.sun.star.uno.Exception,
               java.lang.Exception {

        String sourceURL         = getSourceURL();
        String name              = getName();
        return createNewResource( sourceURL, name );
    }

    /**
     *  Create a new resource.
     *
     *@param  String   Source resource URL
     *@param  String   New resource name
     *@return boolean  Returns true if resource successfully created, false otherwise
     *@exception  com.sun.star.ucb.CommandAbortedException
     *@exception  com.sun.star.uno.Exception
     */
    public boolean createNewResource( String sourceURL, String name )
        throws com.sun.star.ucb.CommandAbortedException,
               com.sun.star.uno.Exception,
               java.lang.Exception {

        XInputStream stream = null;
        if ( sourceURL == null || sourceURL.equals( "" )) {
            stream = new MyInputStream();
        } else  {
            String[] args =  new String[ 2 ];
            args[ 0 ] = "-connect=" + getConnect();
            args[ 1 ] = "-url=" + sourceURL;
            DataStreamRetriever access = new DataStreamRetriever( args );
            stream = access.getDataStream();
        }
        return createNewResource( stream, name );
    }

    /**
     *  Create a new resource.
     *
     *@param  XInputStream   Source resource stream
     *@param  String         New resource name
     *@return boolean        Returns true if resource successfully created, false otherwise
     *@exception  com.sun.star.ucb.CommandAbortedException
     *@exception  com.sun.star.uno.Exception
     */
    public boolean createNewResource( XInputStream stream, String name )
        throws com.sun.star.ucb.CommandAbortedException, com.sun.star.uno.Exception {

        boolean result = false;
        if ( stream != null && name != null && !name.equals( "" )) {

            // Obtain content creator interface.
            XContentCreator creator = ( XContentCreator )UnoRuntime.queryInterface(
                    XContentCreator.class, m_content );

            // Note: The data for info may have been obtained using
            //       XContentCreator::queryCreatableContentsInfo().
            ContentInfo info = new ContentInfo();
            info.Type = "application/vnd.sun.staroffice.fsys-file";
            info.Attributes = 0;

            // Create new, empty content.
            XContent newContent = creator.createNewContent( info );
            if ( newContent != null ) {

                /////////////////////////////////////////////////////////////////////
                // Set mandatory properties...
                /////////////////////////////////////////////////////////////////////

                // Define property value sequence.
                PropertyValue[] props = new PropertyValue[ 1 ];
                PropertyValue prop = new PropertyValue();
                prop.Name   = "Title";
                prop.Handle = -1; // n/a
                prop.Value  = name;
                props[ 0 ] = prop;

                // Execute command "setPropertyValues".
                m_helper.executeCommand( newContent, "setPropertyValues",props );

                /////////////////////////////////////////////////////////////////////
                // Write the new file to disk...
                /////////////////////////////////////////////////////////////////////

                // Obtain document data for the new file.
                XInputStream data = stream;

                // Fill argument structure...
                InsertCommandArgument arg = new InsertCommandArgument();
                arg.Data = data;
                arg.ReplaceExisting = false;

                // Execute command "insert".
                m_helper.executeCommand( newContent, "insert", arg );
                result = true;
            }
        }
        return result;
    }

    /**
     * Get new resource name.
     *
     *@return String    That contains the name
     */
    public String getName() {
        return m_name;
    }

    /**
     * Get source URL.
     *
     *@return String    That contains the source URL
     */
    public String getSourceURL() {
        return m_srcURL;
    }

    /**
     *  Get connect URL.
     *
     *@return   String    That contains the connect URL
     */
    public String getContentURL() {
        return m_contenturl;
    }

    /**
     * Get source data connection.
     *
     *@return String    That contains the source data connection
     */
    public String getConnect() {
        return m_connectString;
    }

    /**
     * Parse arguments
     *
     *@param      String[]   Arguments
     *@exception  java.lang.Exception
     */
    public void parseArguments( String[] args ) throws java.lang.Exception {

        for ( int i = 0; i < args.length; i++ ) {
            if ( args[i].startsWith( "-connect=" )) {
                m_connectString = args[i].substring( 9 );
            } else if ( args[i].startsWith( "-url=" )) {
                m_contenturl = args[i].substring( 5 );
            } else if ( args[i].startsWith( "-name=" )) {
                m_name = args[i].substring( 6 );
            } else if ( args[i].startsWith( "-srcURL=" )) {
                m_srcURL = args[i].substring( 8 );
            } else if ( args[i].startsWith( "-help" ) ||
                        args[i].startsWith( "-?" )) {
                printCmdLineUsage();
                System.exit( 0 );
            }
        }

        if ( m_connectString == null || m_connectString.equals( "" )) {
            m_connectString = "socket,host=localhost,port=8100";
        }

        if ( m_contenturl == null || m_contenturl.equals( "" )) {
            m_contenturl = Helper.getCurrentDirAsAbsoluteFileURL();
        }

        if ( m_name == null || m_name.equals( "" )) {
            m_name = "newfile-" + System.currentTimeMillis();
        }

        if ( m_srcURL == null || m_srcURL.equals( "" )) {
            m_srcURL = Helper.getAbsoluteFileURL( "data/data.txt" );
        }
    }

    /**
     * Print the commands options
     */
    public void printCmdLineUsage() {
        System.out.println(
            "Usage   : ResourceCreator -connect=socket,host=...,port=... -url=...-srcURL=... -name=...n" );
        System.out.println(
            "Defaults: -connect=socket,host=localhost,port=8100 -url=<workdir> -name=newfile.txt -srcURL=<workdir>/data/data.txt>" );
        System.out.println(
            "\nExample : -url=file:///home/kai/ -name=newfile-<uniquepostfix> -srcURL=file:///home/kai/sourcefile.txt" );
    }

    /**
     *  Create a new connection with the specific args to a running office and
     *  create a new resource.
     *
     *@param  String[]   Arguments
     */
    public static void main ( String args[] ) {
        System.out.println( "\n" );
        System.out.println(
            "-----------------------------------------------------------------------" );
        System.out.println(
            "ResourceCreator - creates a new file in an existing file system folder." );
        System.out.println(
            " (Content for the new file can be retrieved from another file)." );
        System.out.println(
            "-----------------------------------------------------------------------" );
        try {
            ResourceCreator create = new ResourceCreator( args );
            boolean result = create.createNewResource();
            if ( result )  {
                System.out.println(
                    "Creation of new resource " + create.getName() + " in folder: " +
                    create.getContentURL() + " succeeded." );
            } else  {
                System.out.println(
                    "Creation of new resource " + create.getName() + " in folder: " +
                    create.getContentURL() + " failed." );
            }
        } catch ( com.sun.star.ucb.CommandAbortedException e ) {
            System.out.println( "Error: " + e );
        } catch ( com.sun.star.uno.Exception e ) {
            System.out.println( "Error: " + e );
        } catch ( java.lang.Exception e ) {
            System.out.println( "Error: " + e );
        }
        System.exit( 0 );
    }
}