/*! ******************************************************************************
*
* Pentaho Data Integration
*
* Copyright (C) 2002-2013 by Pentaho : http://www.pentaho.com
*
*******************************************************************************
*
* Licensed 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
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
******************************************************************************/
package org.pentaho.di.core.plugins;
import java.io.InputStream;
import java.lang.annotation.Annotation;
import java.net.URL;
import java.util.List;
import java.util.Map;
import org.pentaho.di.core.Const;
import org.pentaho.di.core.database.DatabaseInterface;
import org.pentaho.di.core.exception.KettlePluginException;
import org.pentaho.di.core.exception.KettleXMLException;
import org.pentaho.di.core.xml.XMLHandler;
import org.w3c.dom.Document;
import org.w3c.dom.Node;
/**
* This class represents the step plugin type.
*
* @author matt
*
*/
@PluginMainClassType( DatabaseInterface.class )
@PluginAnnotationType( DatabaseMetaPlugin.class )
public class DatabasePluginType extends BasePluginType implements PluginTypeInterface {
private static DatabasePluginType pluginType;
private DatabasePluginType() {
super( DatabaseMetaPlugin.class, "DATABASE", "Database" );
populateFolders( "databases" );
}
public static DatabasePluginType getInstance() {
if ( pluginType == null ) {
pluginType = new DatabasePluginType();
}
return pluginType;
}
/**
* Scan & register internal step plugins
*/
@Override
protected void registerNatives() throws KettlePluginException {
// Scan the native database types...
//
String xmlFile = Const.XML_FILE_KETTLE_DATABASE_TYPES;
// Load the plugins for this file...
//
try {
InputStream inputStream = getClass().getResourceAsStream( xmlFile );
if ( inputStream == null ) {
inputStream = getClass().getResourceAsStream( "/" + xmlFile );
}
if ( inputStream == null ) {
throw new KettlePluginException( "Unable to find native kettle database types definition file: " + xmlFile );
}
Document document = XMLHandler.loadXMLFile( inputStream, null, true, false );
Node repsNode = XMLHandler.getSubNode( document, "database-types" );
List<Node> repsNodes = XMLHandler.getNodes( repsNode, "database-type" );
for ( Node repNode : repsNodes ) {
registerPluginFromXmlResource( repNode, "./", this.getClass(), true, null );
}
} catch ( KettleXMLException e ) {
throw new KettlePluginException( "Unable to read the kettle database types XML config file: " + xmlFile, e );
}
}
@Override
protected void registerXmlPlugins() throws KettlePluginException {
}
@Override
public void handlePluginAnnotation( Class<?> clazz, Annotation annotation, List<String> libraries,
boolean nativePluginType, URL pluginFolder ) throws KettlePluginException {
// TODO Auto-generated method stub
super.handlePluginAnnotation( clazz, annotation, libraries, nativePluginType, pluginFolder );
}
public String[] getNaturalCategoriesOrder() {
return new String[0];
}
@Override
protected String extractCategory( Annotation annotation ) {
return "";
}
@Override
protected String extractDesc( Annotation annotation ) {
return ( (DatabaseMetaPlugin) annotation ).typeDescription();
}
@Override
protected String extractID( Annotation annotation ) {
return ( (DatabaseMetaPlugin) annotation ).type();
}
@Override
protected String extractName( Annotation annotation ) {
return ( (DatabaseMetaPlugin) annotation ).typeDescription();
}
@Override
protected String extractImageFile( Annotation annotation ) {
return null;
}
@Override
protected boolean extractSeparateClassLoader( Annotation annotation ) {
return false;
}
@Override
protected String extractI18nPackageName( Annotation annotation ) {
return null;
}
@Override
protected void addExtraClasses( Map<Class<?>, String> classMap, Class<?> clazz, Annotation annotation ) {
}
@Override
protected String extractDocumentationUrl( Annotation annotation ) {
return null;
}
@Override
protected String extractCasesUrl( Annotation annotation ) {
return null;
}
@Override
protected String extractForumUrl( Annotation annotation ) {
return null;
}
@Override
protected String extractClassLoaderGroup( Annotation annotation ) {
return ( (DatabaseMetaPlugin) annotation ).classLoaderGroup();
}
}