/*! ******************************************************************************
*
* 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
* limitations under the License.
*
******************************************************************************/
package org.pentaho.di.trans.steps.gpbulkloader;
import java.io.BufferedWriter;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.io.OutputStreamWriter;
import java.io.PrintWriter;
import java.math.BigDecimal;
import java.text.SimpleDateFormat;
import java.util.Date;
import org.pentaho.di.core.Const;
import org.pentaho.di.core.util.Utils;
import org.pentaho.di.core.exception.KettleException;
import org.pentaho.di.core.row.RowMetaInterface;
import org.pentaho.di.core.row.ValueMetaInterface;
import org.pentaho.di.core.variables.VariableSpace;
/**
* Does the opening of the output "stream". It's either a file or inter process communication which is transparant to
* users of this class.
*
* Copied from Sven Boden's Oracle version
*
* @author Luke Lonergan
* @since 28-mar-2008
*/
public class GPBulkDataOutput {
private GPBulkLoaderMeta meta;
private PrintWriter output = null;
private boolean first = true;
private int[] fieldNumbers = null;
private String enclosure = null;
private SimpleDateFormat sdfDate = null;
private SimpleDateFormat sdfDateTime = null;
public GPBulkDataOutput( GPBulkLoaderMeta meta ) {
this.meta = meta;
}
public void open( VariableSpace space, Process sqlldrProcess ) throws KettleException {
// String loadMethod = meta.getLoadMethod();
try {
OutputStream os = null;
// if ( GPBulkLoaderMeta.METHOD_AUTO_CONCURRENT.equals(loadMethod))
// {
// String dataFile = meta.getControlFile();
// dataFile = StringUtil.environmentSubstitute(dataFile);
// os = new FileOutputStream(dataFile, true);
// }
// else
// {
// Else open the data file filled in.
String dataFile = meta.getDataFile();
dataFile = space.environmentSubstitute( dataFile );
os = new FileOutputStream( dataFile, false );
// }
String encoding = meta.getEncoding();
if ( Utils.isEmpty( encoding ) ) {
// Use the default encoding.
output = new PrintWriter( new BufferedWriter( new OutputStreamWriter( os ) ) );
} else {
// Use the specified encoding
output = new PrintWriter( new BufferedWriter( new OutputStreamWriter( os, encoding ) ) );
}
} catch ( IOException e ) {
throw new KettleException( "IO exception occured: " + e.getMessage(), e );
}
}
public void close() throws IOException {
if ( output != null ) {
output.close();
}
}
PrintWriter getOutput() {
return output;
}
private String createEscapedString( String orig, String enclosure ) {
StringBuffer buf = new StringBuffer( orig );
Const.repl( buf, enclosure, enclosure + enclosure );
return buf.toString();
}
public void writeLine( RowMetaInterface mi, Object[] row ) throws KettleException {
if ( first ) {
first = false;
enclosure = meta.getEnclosure();
// Setup up the fields we need to take for each of the rows
// as this speeds up processing.
fieldNumbers = new int[meta.getFieldStream().length];
for ( int i = 0; i < fieldNumbers.length; i++ ) {
fieldNumbers[i] = mi.indexOfValue( meta.getFieldStream()[i] );
if ( fieldNumbers[i] < 0 ) {
throw new KettleException( "Could not find field " + meta.getFieldStream()[i] + " in stream" );
}
}
sdfDate = new SimpleDateFormat( "yyyy-MM-dd" );
sdfDateTime = new SimpleDateFormat( "yyyy-MM-dd HH:mm:ss.SSS" );
}
// Write the data to the output
ValueMetaInterface v = null;
int number = 0;
for ( int i = 0; i < fieldNumbers.length; i++ ) {
if ( i != 0 ) {
output.print( "," );
}
number = fieldNumbers[i];
v = mi.getValueMeta( number );
if ( row[number] == null ) {
// TODO (SB): special check for null in case of Strings.
output.print( enclosure );
output.print( enclosure );
} else {
switch ( v.getType() ) {
case ValueMetaInterface.TYPE_STRING:
String s = mi.getString( row, number );
if ( s.indexOf( enclosure ) >= 0 ) {
s = createEscapedString( s, enclosure );
}
output.print( enclosure );
output.print( s );
output.print( enclosure );
break;
case ValueMetaInterface.TYPE_INTEGER:
Long l = mi.getInteger( row, number );
output.print( enclosure );
output.print( l );
output.print( enclosure );
break;
case ValueMetaInterface.TYPE_NUMBER:
Double d = mi.getNumber( row, number );
output.print( enclosure );
output.print( d );
output.print( enclosure );
break;
case ValueMetaInterface.TYPE_BIGNUMBER:
BigDecimal bd = mi.getBigNumber( row, number );
output.print( enclosure );
output.print( bd );
output.print( enclosure );
break;
case ValueMetaInterface.TYPE_DATE:
Date dt = mi.getDate( row, number );
output.print( enclosure );
String mask = meta.getDateMask()[i];
if ( GPBulkLoaderMeta.DATE_MASK_DATETIME.equals( mask ) ) {
output.print( sdfDateTime.format( dt ) );
} else {
// Default is date format
output.print( sdfDate.format( dt ) );
}
output.print( enclosure );
break;
case ValueMetaInterface.TYPE_BOOLEAN:
Boolean b = mi.getBoolean( row, number );
output.print( enclosure );
if ( b.booleanValue() ) {
output.print( "Y" );
} else {
output.print( "N" );
}
output.print( enclosure );
break;
case ValueMetaInterface.TYPE_BINARY:
byte[] byt = mi.getBinary( row, number );
output.print( "<startlob>" );
output.print( byt );
output.print( "<endlob>" );
break;
default:
throw new KettleException( "Unsupported type" );
}
}
}
output.print( Const.CR );
}
}