In this program, you will see complete steps to extract content and metadata from a class file by TIka ClassParser.

Sample File

Complete Example

import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;

import org.apache.tika.exception.TikaException;
import org.apache.tika.metadata.Metadata;
import org.apache.tika.parser.ParseContext;
import org.apache.tika.parser.asm.ClassParser;
import org.apache.tika.sax.BodyContentHandler;
import org.xml.sax.SAXException;

public class TikaJavaClassParsingExample {

	public static void main(String[] args) throws IOException, SAXException, TikaException {
		 //detecting the file type
	      BodyContentHandler handler = new BodyContentHandler();
	      Metadata metadata = new Metadata();
	      FileInputStream inputstream = new FileInputStream(new File("C:\\Users\\Saurabh Gupta\\Desktop\\TIKA\\TikaTest.class"));
	      ParseContext pcontext = new ParseContext();

	      //Html parser
	      ClassParser  ClassParser = new  ClassParser();
	      ClassParser.parse(inputstream, handler, metadata);
	      System.out.println("Contents of the Java Class File:\n" + handler.toString());
	      System.out.println("Metadata of the Java Class File:\n");
	      String[] metadataNames = metadata.names();

	      for(String name : metadataNames) {
	         System.out.println(name + " :  " + metadata.get(name));
	      }

	}

}

Output

Contents of the Java Class File:
package com.fiot.tika.examples;

public class TikaTest {

    public static void main(String[] args) {
        System.out.println("You are in FacingIssuesOnIT.");
        
        System.out.println("Learn from Others Experience.");
    }

}


Metadata of the Java Class File:

dc:title :  TikaTest
resourceName :  TikaTest.class
title :  TikaTest