xref: /trunk/main/odk/examples/DevelopersGuide/Database/CodeSamples.java (revision 34dd1e25)

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 * Licensed to the Apache Software Foundation (ASF) under one
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 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
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 *   http://www.apache.org/licenses/LICENSE-2.0
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import java.io.*;

import com.sun.star.comp.helper.RegistryServiceFactory;
import com.sun.star.comp.servicemanager.ServiceManager;
import com.sun.star.lang.XMultiComponentFactory;
import com.sun.star.lang.XSingleServiceFactory;
import com.sun.star.lang.XServiceInfo;
import com.sun.star.lang.XComponent;
import com.sun.star.bridge.XUnoUrlResolver;
import com.sun.star.uno.UnoRuntime;
import com.sun.star.uno.XComponentContext;
import com.sun.star.beans.XPropertySet;
import com.sun.star.container.XNameAccess;
import com.sun.star.container.XNameContainer;
import com.sun.star.sdbc.*;
import com.sun.star.sdb.*;
import com.sun.star.sdbcx.*;
import com.sun.star.frame.*;

public class CodeSamples
{
	public static XComponentContext xContext;
	public static XMultiComponentFactory xMCF;

	public static void main(String argv[]) throws java.lang.Exception
	{
        try {
            // get the remote office component context
            xContext = com.sun.star.comp.helper.Bootstrap.bootstrap();
            System.out.println("Connected to a running office ...");
            xMCF = xContext.getServiceManager();
        }
        catch(Exception e) {
            System.err.println("ERROR: can't get a component context from a running office ...");
            e.printStackTrace();
            System.exit(1);
        }

        try{
			createQuerydefinition( );
			printQueryColumnNames( );

			XConnection con = openConnectionWithDriverManager();
			if ( con != null ) {
				{
					SalesMan sm = new SalesMan( con );

					try {
						sm.dropSalesManTable( ); // doesn't matter here
					}
					catch(com.sun.star.uno.Exception e)
					{
					}
					sm.createSalesManTable( );
					sm.insertDataIntoSalesMan( );
					sm.updateSalesMan( );
					sm.retrieveSalesManData( );
				}

				{
					Sales sm = new Sales( con );

					try {
						sm.dropSalesTable( ); // doesn't matter here
					}
					catch(com.sun.star.uno.Exception e)
					{
					}
					sm.createSalesTable( );
					sm.insertDataIntoSales( );
					sm.updateSales( );
					sm.retrieveSalesData( );
					sm.displayColumnNames( );
				}
				displayTableStructure( con );
			}
			//	printDataSources();
		}
		catch(Exception e)
		{
			System.err.println(e);
			e.printStackTrace();
		}
		System.exit(0);
	}

	// check if the connection is not null aand dispose it later on.
	public static void checkConnection(XConnection con) throws com.sun.star.uno.Exception
	{
		if(con != null)
		{
			System.out.println("Connection was created!");
			// now we dispose the connection to close it
			XComponent xComponent = (XComponent)UnoRuntime.queryInterface(XComponent.class,con);
			if(xComponent != null)
			{
				// connections must be disposed
				xComponent.dispose();
				System.out.println("Connection disposed!");
			}
		}
		else
			System.out.println("Connection could not be created!");
	}

	// uses the driver manager to create a new connection and dispose it.
	public static XConnection openConnectionWithDriverManager() throws com.sun.star.uno.Exception
	{
		XConnection con = null;
		// create the DriverManager
		Object driverManager =
            xMCF.createInstanceWithContext("com.sun.star.sdbc.DriverManager",
                                           xContext);
		// query for the interface
		com.sun.star.sdbc.XDriverManager xDriverManager;
		xDriverManager = (XDriverManager)UnoRuntime.queryInterface(XDriverManager.class,driverManager);
		if(xDriverManager != null)
		{
			// first create the needed url
			String url = "jdbc:mysql://localhost:3306/TestTables";
			// second create the necessary properties
			com.sun.star.beans.PropertyValue [] props = new com.sun.star.beans.PropertyValue[]
			{
				new com.sun.star.beans.PropertyValue("user",0,"test1",com.sun.star.beans.PropertyState.DIRECT_VALUE),
				new com.sun.star.beans.PropertyValue("password",0,"test1",com.sun.star.beans.PropertyState.DIRECT_VALUE),
				new com.sun.star.beans.PropertyValue("JavaDriverClass",0,"org.gjt.mm.mysql.Driver",com.sun.star.beans.PropertyState.DIRECT_VALUE)
			};
			// now create a connection to mysql
			con = xDriverManager.getConnectionWithInfo(url,props);
		}
		return con;
	}

	// uses the driver directly to create a new connection and dispose it.
	public static XConnection openConnectionWithDriver() throws com.sun.star.uno.Exception
	{
		XConnection con = null;
		// create the Driver with the implementation name
		Object aDriver =
            xMCF.createInstanceWithContext("org.openoffice.comp.drivers.MySQL.Driver",
                                           xContext);
		// query for the interface
		com.sun.star.sdbc.XDriver xDriver;
		xDriver = (XDriver)UnoRuntime.queryInterface(XDriver.class,aDriver);
		if(xDriver != null)
		{
			// first create the needed url
			String url = "jdbc:mysql://localhost:3306/TestTables";
			// second create the necessary properties
			com.sun.star.beans.PropertyValue [] props = new com.sun.star.beans.PropertyValue[]
			{
				new com.sun.star.beans.PropertyValue("user",0,"test1",com.sun.star.beans.PropertyState.DIRECT_VALUE),
				new com.sun.star.beans.PropertyValue("password",0,"test1",com.sun.star.beans.PropertyState.DIRECT_VALUE),
                                new com.sun.star.beans.PropertyValue("JavaDriverClass",0,"org.gjt.mm.mysql.Driver",com.sun.star.beans.PropertyState.DIRECT_VALUE)
			};
			// now create a connection to mysql
			con = xDriver.connect(url,props);
		}
		return con;
	}

	// print all available datasources
	public static void printDataSources() throws com.sun.star.uno.Exception
	{
		// create a DatabaseContext and print all DataSource names
		XNameAccess xNameAccess = (XNameAccess)UnoRuntime.queryInterface(
            XNameAccess.class,
            xMCF.createInstanceWithContext("com.sun.star.sdb.DatabaseContext",
                                           xContext));
		String aNames [] = xNameAccess.getElementNames();
		for(int i=0;i<aNames.length;++i)
			System.out.println(aNames[i]);
	}

	// displays the structure of the first table
	public static void displayTableStructure(XConnection con) throws com.sun.star.uno.Exception
	{
		XDatabaseMetaData dm = con.getMetaData();
		XResultSet rsTables = dm.getTables(null,"%","SALES",null);
		XRow       rowTB = (XRow)UnoRuntime.queryInterface(XRow.class, rsTables);
		while ( rsTables.next() )
		{
			String catalog = rowTB.getString( 1 );
			if ( rowTB.wasNull() )
				catalog = null;

			String schema = rowTB.getString( 2 );
			if ( rowTB.wasNull() )
				schema = null;

			String table = rowTB.getString( 3 );
			String type = rowTB.getString( 4 );
			System.out.println("Catalog: " + catalog + " Schema: " + schema + " Table: " + table + " Type: " + type);
			System.out.println("------------------ Columns ------------------");
			XResultSet rsColumns = dm.getColumns(catalog,schema,table,"%");
			XRow       rowCL = (XRow)UnoRuntime.queryInterface(XRow.class, rsColumns);
			while ( rsColumns.next() )
			{
				System.out.println("Column: " + rowCL.getString( 4 ) + " Type: " + rowCL.getInt( 5 ) + " TypeName: " + rowCL.getString( 6 ) );
			}

		}
	}

	// quote the given name
	public static String quoteTableName(XConnection con, String sCatalog, String sSchema, String sTable) throws com.sun.star.uno.Exception
	{
		XDatabaseMetaData dbmd = con.getMetaData();
		String sQuoteString = dbmd.getIdentifierQuoteString();
		String sSeparator = ".";
		String sComposedName = "";
		String sCatalogSep = dbmd.getCatalogSeparator();
		if (0 != sCatalog.length() && dbmd.isCatalogAtStart() && 0 != sCatalogSep.length())
		{
			sComposedName += sCatalog;
			sComposedName += dbmd.getCatalogSeparator();
		}
		if (0 != sSchema.length())
		{
			sComposedName += sSchema;
			sComposedName += sSeparator;
			sComposedName += sTable;
		}
		else
                {
			sComposedName += sTable;
		}
		if (0 != sCatalog.length() && !dbmd.isCatalogAtStart() && 0 != sCatalogSep.length())
		{
			sComposedName += dbmd.getCatalogSeparator();
			sComposedName += sCatalog;
		}
		return sComposedName;
	}

	// creates a new query definition
	public static void createQuerydefinition() throws com.sun.star.uno.Exception
	{
		XNameAccess xNameAccess = (XNameAccess)UnoRuntime.queryInterface(
            XNameAccess.class,
            xMCF.createInstanceWithContext("com.sun.star.sdb.DatabaseContext",
                                           xContext));
		// we use the first datasource
		XQueryDefinitionsSupplier xQuerySup = (XQueryDefinitionsSupplier)
											UnoRuntime.queryInterface(XQueryDefinitionsSupplier.class,
											xNameAccess.getByName( "Bibliography" ));
		XNameAccess xQDefs = xQuerySup.getQueryDefinitions();
		// create new query definition
		XSingleServiceFactory xSingleFac =	(XSingleServiceFactory)
											UnoRuntime.queryInterface(XSingleServiceFactory.class, xQDefs);

		XPropertySet xProp = (XPropertySet) UnoRuntime.queryInterface(
            XPropertySet.class,xSingleFac.createInstance());
		xProp.setPropertyValue("Command","SELECT * FROM biblio");
		xProp.setPropertyValue("EscapeProcessing",new Boolean(true));

		XNameContainer xCont = (XNameContainer) UnoRuntime.queryInterface(XNameContainer.class, xQDefs);
                try
                {
                    if ( xCont.hasByName("Query1") )
                        xCont.removeByName("Query1");
                }
                catch(com.sun.star.uno.Exception e)
                {}
		xCont.insertByName("Query1",xProp);
		XDocumentDataSource xDs = (XDocumentDataSource)UnoRuntime.queryInterface(XDocumentDataSource.class, xQuerySup);

        XStorable xStore = (XStorable)UnoRuntime.queryInterface(XStorable.class,xDs.getDatabaseDocument());
        xStore.store();
	}

	// prints all column names from Query1
	public static void printQueryColumnNames() throws com.sun.star.uno.Exception
	{
		XNameAccess xNameAccess = (XNameAccess)UnoRuntime.queryInterface(
            XNameAccess.class,
            xMCF.createInstanceWithContext("com.sun.star.sdb.DatabaseContext",
                                           xContext));
		// we use the first datasource
		XDataSource xDS = (XDataSource)UnoRuntime.queryInterface(
            XDataSource.class, xNameAccess.getByName( "Bibliography" ));
		XConnection con = xDS.getConnection("","");
		XQueriesSupplier xQuerySup = (XQueriesSupplier)
											UnoRuntime.queryInterface(XQueriesSupplier.class, con);

		XNameAccess xQDefs = xQuerySup.getQueries();

		XColumnsSupplier xColsSup = (XColumnsSupplier) UnoRuntime.queryInterface(
            XColumnsSupplier.class,xQDefs.getByName("Query1"));
		XNameAccess xCols = xColsSup.getColumns();
		String aNames [] = xCols.getElementNames();
		for(int i=0;i<aNames.length;++i)
			System.out.println(aNames[i]);
	}
}