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ProGuard is a free shrinker, optimizer, obfuscator, and preverifier for Java bytecode

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/*
 * ProGuard -- shrinking, optimization, obfuscation, and preverification
 *             of Java bytecode.
 *
 * Copyright (c) 2002-2021 Guardsquare NV
 */

package proguard;

import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import proguard.classfile.visitor.*;
import proguard.pass.Pass;
import proguard.util.PrintWriterUtil;

import java.io.PrintWriter;

/**
 * This pass prints the contents of the program class pool.
 *
 * @author Tim Van Den Broecke
 */
public class Dumper implements Pass
{
    private static final Logger logger = LogManager.getLogger(Dumper.class);

    private final Configuration configuration;

    public Dumper(Configuration configuration)
    {
        this.configuration = configuration;
    }


    @Override
    public void execute(AppView appView) throws Exception
    {
        logger.info("Printing classes to [{}]...", PrintWriterUtil.fileName(configuration.dump));

        PrintWriter pw = PrintWriterUtil.createPrintWriterOut(configuration.dump);
        try
        {
            appView.programClassPool.classesAccept(new ClassPrinter(pw));
        }
        finally
        {
            PrintWriterUtil.closePrintWriter(configuration.dump, pw);
        }
    }
}