other-products:pdf-content-comparer:documentation:samples:comparetwofolderswithcustomhandler.java

This sample class needs the CustomResultHandler.java file.
package samples;
 
import java.io.File;
 
import org.apache.log4j.ConsoleAppender;
import org.apache.log4j.Logger;
import org.apache.log4j.SimpleLayout;
 
import com.inet.pdfc.config.ConfigurationFactory;
import com.inet.pdfc.config.IConfiguration;
import com.inet.pdfc.config.PDFCProperty;
import com.inet.pdfc.results.IResultHandler;
import com.inet.pdfc.runner.BatchRunner;
 
/**
 * This sample demonstrates how you can compare two folder 
 * containing PDF files with pairwise identical names.
 */
public class CompareTwoFoldersWithCustomHandler {
 
    /**
     * @param args
     */
    public static void main( String[] args ) {
        // Configure Log Output
        Logger logger = Logger.getRootLogger();
        logger.addAppender( new ConsoleAppender( new SimpleLayout() ) );
 
        // Check command line arguments
        if (args == null || args.length != 2) {
            logger.error( "Usage: CompareTwoFilesWithCustomHandler <folder1> <folder2>" );
            System.exit(1);
        }
        File referenceFileDir = new File( args[0] ); // first Folder
        File currentFileDir   = new File( args[1] ); // second Folder
        if( !referenceFileDir.isDirectory() || !currentFileDir.isDirectory() ) {
            logger.error( "Directories defined through command line parameters must exist" );
            System.exit(1);
        }
 
        // Configure i-net PDFC
        IConfiguration configuration = ConfigurationFactory.getConfiguration();
        configuration.putObject( PDFCProperty.CREATE_DIFFIMAGES, Boolean.FALSE ); // don't create PNG image for each page of the PDF file with differences
        configuration.putObject( PDFCProperty.CREATE_ORIGIMAGES, Boolean.FALSE ); // don't create PNG image for each page with the original content 
 
        IResultHandler resultHandler =  new CustomResultHandler( configuration );
 
        // Compare Folders
        (new BatchRunner( configuration, resultHandler )).runComparison( referenceFileDir, currentFileDir );
 
        // The same Custom Result Handler can be used for File- and for Folder- Compare
        CustomResultHandler customResultHandler = (CustomResultHandler)resultHandler;
 
        int fileCount = customResultHandler.getResultCount();
 
        logger.debug( "number of file compare results: " + fileCount );
 
        int differentFileCount = 0;
        for( int i=0; i< fileCount; i++ ) {
            String referenceFileName = customResultHandler.getName( i );
            logger.debug("");
            logger.debug( "File name: " + referenceFileName );
            logger.debug( "-------------------------------" );
 
            int differenceCount = customResultHandler.getDifferenceCount( i );
            logger.debug( "number of differences: " + differenceCount );
            if( differenceCount != 0 ) {
                differentFileCount++;
            }
        }
 
        if( fileCount != 0 ) {
            logger.debug("");
            if( differentFileCount == 0 ) {
                logger.debug( "Files in folders " + referenceFileDir.getName() + " and " + currentFileDir.getName() + " are identical" );
            } else {
                logger.debug( "Different files count: " + differentFileCount );
            }
        }    
    }
}