This routine will help you. I wrote this a while ago for something I was doing at the time. Not used it in a while, but believe it should work for you. You will need the org.apache.commons.codec Jar and will need to set it as a routine library. After you have done that, this will work for you.
package routines;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import org.apache.commons.codec.binary.Base64;
/*
* user specification: the function's comment should contain keys as follows: 1. write about the function's comment.but
* it must be before the "{talendTypes}" key.
*
* 2. {talendTypes} 's value must be talend Type, it is required . its value should be one of: String, char | Character,
* long | Long, int | Integer, boolean | Boolean, byte | Byte, Date, double | Double, float | Float, Object, short |
* Short
*
* 3. {Category} define a category for the Function. it is required. its value is user-defined .
*
* 4. {param} 's format is: {param} <type>[(<default value or closed list values>)] <name>[ : <comment>]
*
* <type> 's value should be one of: string, int, list, double, object, boolean, long, char, date. <name>'s value is the
* Function's parameter name. the {param} is optional. so if you the Function without the parameters. the {param} don't
* added. you can have many parameters for the Function.
*
* 5. {example} gives a example for the Function. it is optional.
*/
public class Base64Encoding {
public static String encodeFileToString(String filepath){
File originalFile = new File(filepath);
String encodedBase64 = null;
try {
FileInputStream fileInputStreamReader = new FileInputStream(originalFile);
byte[] bytes = new byte[(int)originalFile.length()];
fileInputStreamReader.read(bytes);
encodedBase64 = new String(Base64.encodeBase64(bytes));
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
return encodedBase64;
}
}
