ClassList.java

/*
 *  Copyright (c) 2001-2024, Jean Tessier
 *  All rights reserved.
 *  
 *  Redistribution and use in source and binary forms, with or without
 *  modification, are permitted provided that the following conditions
 *  are met:
 *  
 *      * Redistributions of source code must retain the above copyright
 *        notice, this list of conditions and the following disclaimer.
 *  
 *      * Redistributions in binary form must reproduce the above copyright
 *        notice, this list of conditions and the following disclaimer in the
 *        documentation and/or other materials provided with the distribution.
 *  
 *      * Neither the name of Jean Tessier nor the names of his contributors
 *        may be used to endorse or promote products derived from this software
 *        without specific prior written permission.
 *  
 *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 *  "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 *  LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 *  A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR
 *  CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 *  EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 *  PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
 *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
 *  LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
 *  NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 *  SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

package com.jeantessier.dependencyfinder.cli;

import java.io.IOException;
import java.util.*;

import com.jeantessier.classreader.*;

import static java.util.stream.Collectors.*;

public class ClassList extends DirectoryExplorerCommand {
    private final static String EOL = System.getProperty("line.separator", "\n");

    protected void populateCommandLineSwitches() {
        super.populateCommandLineSwitches();

        getCommandLine().addSingleValueSwitch("indent-text", "    ");
    }

    public void doProcessing() throws Exception {
        getCommandLine().getParameters().forEach(filename -> {
            ClassfileLoader loader = new AggregatingClassfileLoader();
            loader.addLoadListener(getVerboseListener());
            loader.load(Collections.singleton(filename));

            try {
                getOut().print(filename);
                getOut().println(":");
                getOut().println(
                        loader.getAllClassfiles().stream()
                                .map(Classfile::getClassName)
                                .map(className -> getCommandLine().getSingleSwitch("indent-text") + className)
                                .collect(joining(EOL))
                );
                getOut().println();
            } catch (IOException e) {
                throw new RuntimeException(e);
            }
        });
    }

    public static void main(String[] args) throws Exception {
        new ClassList().run(args);
    }
}