/*! ******************************************************************************
*
* Pentaho Data Integration
*
* Copyright (C) 2002-2016 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
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package org.pentaho.di.trans.steps.metainject;
import org.apache.commons.vfs2.FileObject;
import org.apache.commons.vfs2.FileSystemException;
import org.pentaho.di.core.Const;
import org.pentaho.di.core.ObjectLocationSpecificationMethod;
import org.pentaho.di.core.exception.KettleException;
import org.pentaho.di.core.extension.ExtensionPoint;
import org.pentaho.di.core.extension.ExtensionPointInterface;
import org.pentaho.di.core.logging.LogChannelInterface;
import org.pentaho.di.core.vfs.KettleVFS;
import org.pentaho.di.i18n.BaseMessages;
import org.pentaho.di.repository.filerep.KettleFileRepository;
import org.pentaho.di.trans.TransMeta;
import org.pentaho.di.trans.step.StepMeta;
@ExtensionPoint(
id = "RepositoryExporterPatchTransStep",
description = "Patch the step in a transformation during repository export",
extensionPointId = "RepositoryExporterPatchTransStep" )
public class RepositoryExporterExtension implements ExtensionPointInterface {
@Override
public void callExtensionPoint( LogChannelInterface log, Object object ) throws KettleException {
Object[] metaInjectObjectArray = (Object[]) object;
TransMeta transMeta = (TransMeta) metaInjectObjectArray[0];
Class<?> PKG = (Class<?>) metaInjectObjectArray[1];
KettleFileRepository fileRep = (KettleFileRepository) metaInjectObjectArray[2];
StepMeta stepMeta = (StepMeta) metaInjectObjectArray[3];
if ( stepMeta.isEtlMetaInject() ) {
MetaInjectMeta metaInjectMeta = (MetaInjectMeta) stepMeta.getStepMetaInterface();
// convert to a named based reference.
//
if ( metaInjectMeta.getSpecificationMethod() == ObjectLocationSpecificationMethod.FILENAME ) {
try {
TransMeta meta =
MetaInjectMeta.loadTransformationMeta( metaInjectMeta, fileRep, fileRep.metaStore, transMeta );
FileObject fileObject = KettleVFS.getFileObject( meta.getFilename() );
metaInjectMeta.setSpecificationMethod( ObjectLocationSpecificationMethod.REPOSITORY_BY_NAME );
metaInjectMeta.setFileName( null );
metaInjectMeta.setTransName( meta.getName() );
metaInjectMeta.setDirectoryPath( Const.NVL( calcRepositoryDirectory( fileRep, fileObject ), "/" ) );
} catch ( Exception e ) {
log.logError( BaseMessages.getString( PKG, "Repository.Exporter.Log.UnableToLoadTransInMDI",
metaInjectMeta.getName() ), e );
}
}
}
}
private String calcRepositoryDirectory( KettleFileRepository fileRep, FileObject fileObject ) throws FileSystemException {
String path = fileObject.getParent().getName().getPath();
String baseDirectory = fileRep.getRepositoryMeta().getBaseDirectory();
// Double check!
//
if ( path.startsWith( baseDirectory ) ) {
return path.substring( baseDirectory.length() );
} else {
return path;
}
}
}