How to use

getFileEncoding

method

in

org.pentaho.di.core.row.ValueDataUtil

/**
 * Get file encoding.
 *
 * @param metaA
 *          The ValueMetaInterface
 * @param dataA
 *          The value (filename)
 * @return file encoding.
 * @deprecated Use {@link ValueDataUtil#getFileEncoding(ValueMetaInterface, Object, boolean)} instead
 */
@Deprecated
public static String getFileEncoding( ValueMetaInterface metaA, Object dataA ) throws KettleValueException {
 String encoding = null;
 try {
  encoding = getFileEncoding( metaA, dataA, true );
 } catch ( KettleFileNotFoundException e ) {
  throw new KettleValueException();
 }
 return encoding;
}

@Test
public void getFileEncodingWithFailIfNoFileTest() throws Exception {
 String path = getClass().getResource( "txt-sample.txt" ).getPath();
 String encoding = ValueDataUtil.getFileEncoding( new ValueMetaString(), path, true );
 assertEquals( "US-ASCII", encoding );
}

@Test( expected = KettleFileNotFoundException.class )
public void getFileEncodingFailIfNoFileTest() throws KettleFileNotFoundException, KettleValueException {
 String nonExistingPath = "nonExistingPath";
 ValueDataUtil.getFileEncoding( new ValueMetaString(), nonExistingPath, true );
}

@Test
public void getFileEncodingTest() throws Exception {
 String path = getClass().getResource( "txt-sample.txt" ).getPath();
 String encoding = ValueDataUtil.getFileEncoding( new ValueMetaString(), path );
 assertEquals( "US-ASCII", encoding );
}

@Test
public void getFileEncodingWithoutFailIfNoFileTest() throws Exception {
 String path = getClass().getResource( "txt-sample.txt" ).getPath();
 String encoding = ValueDataUtil.getFileEncoding( new ValueMetaString(), path, false );
 assertEquals( "US-ASCII", encoding );
}

@Test( expected = KettleValueException.class )
public void getFileEncodingMissingFileTest() throws KettleValueException {
 String nonExistingPath = "nonExistingPath";
 ValueDataUtil.getFileEncoding( new ValueMetaString(), nonExistingPath );
}

@Test
public void getFileEncodingNullPathNoFailTest() throws Exception {
 String encoding = ValueDataUtil.getFileEncoding( new ValueMetaString(), null, false );
 assertNull( encoding );
}

@Test
public void getFileEncodingNoFailIfNoFileTest() throws Exception {
 String nonExistingPath = "nonExistingPath";
 String encoding = ValueDataUtil.getFileEncoding( new ValueMetaString(), nonExistingPath, false );
 assertNull( encoding );
}

@Test
public void getFileEncodingNullPathFailTest() throws KettleFileNotFoundException, KettleValueException {
 String encoding = ValueDataUtil.getFileEncoding( new ValueMetaString(), null, true );
 assertNull( encoding );
}

@Test
public void getFileEncodingNullPathTest() throws Exception {
 assertNull( ValueDataUtil.getFileEncoding( new ValueMetaString(), null ) );
}

 break;
case CalculatorMetaFunction.CALC_GET_FILE_ENCODING: // Get file encoding from a file A
 calcData[index] = ValueDataUtil.getFileEncoding( metaA, dataA, meta.isFailIfNoFile() );
 resultType = CalculatorMetaFunction.calcDefaultResultType[calcType];
 break;