DependencyClosure.java :  » Code-Analyzer » DependencyFinder » com » jeantessier » dependencyfinder » cli » Java Open Source

/*
 *  Copyright (c) 2001-2007, 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.*;

import org.apache.log4j.*;

import com.jeantessier.dependency.*;
import com.jeantessier.dependency.Printer;
import com.jeantessier.dependency.TextPrinter;
import com.jeantessier.commandline.*;

public class DependencyClosure extends Command {
    public DependencyClosure() throws CommandLineException {
        super("DependencyClosure");
    }

    protected void showSpecificUsage(PrintStream out) {
        out.println();
        out.println("Defaults is text output to the console.");
        out.println();
    }

    protected void populateCommandLineSwitches() {
        super.populateCommandLineSwitches();
        populateCommandLineSwitchesForXMLOutput(XMLPrinter.DEFAULT_ENCODING, XMLPrinter.DEFAULT_DTD_PREFIX);

        populateCommandLineSwitchesForStartCondition();
        populateCommandLineSwitchesForStopCondition();

        getCommandLine().addOptionalValueSwitch("maximum-inbound-depth");
        getCommandLine().addOptionalValueSwitch("maximum-outbound-depth");

        getCommandLine().addToggleSwitch("xml");
        getCommandLine().addToggleSwitch("validate");
    }

    protected ParameterStrategy getParameterStrategy() {
        return new AtLeastParameterStrategy(1);
    }

    protected void doProcessing() throws Exception {
        NodeFactory factory = new NodeFactory();

        for (String filename : getCommandLine().getParameters()) {
            if (filename.endsWith(".xml")) {
                getVerboseListener().print("Reading " + filename);

                NodeLoader loader = new NodeLoader(factory, getCommandLine().getToggleSwitch("validate"));
                loader.addDependencyListener(getVerboseListener());
                loader.load(filename);

                getVerboseListener().print("Read \"" + filename + "\".");
            } else {
                getVerboseListener().print("Skipping \"" + filename + "\".");
            }
        }

        TransitiveClosure selector = new TransitiveClosure(getStartCriteria(), getStopCriteria());

        try {
            if (getCommandLine().isPresent("maximum-inbound-depth")) {
                selector.setMaximumInboundDepth(Long.parseLong(getCommandLine().getSingleSwitch("maximum-inbound-depth")));
            }
        } catch (NumberFormatException ex) {
            selector.setMaximumInboundDepth(TransitiveClosure.UNBOUNDED_DEPTH);
        }

        try {
            if (getCommandLine().isPresent("maximum-outbound-depth")) {
                selector.setMaximumOutboundDepth(Long.parseLong(getCommandLine().getSingleSwitch("maximum-outbound-depth")));
            }
        } catch (NumberFormatException ex) {
            selector.setMaximumOutboundDepth(TransitiveClosure.UNBOUNDED_DEPTH);
        }

        Logger.getLogger(getClass()).info("Operating on " + factory.getPackages().values().size() + " package(s) ...");

        selector.traverseNodes(factory.getPackages().values());

        Logger.getLogger(getClass()).info("Reporting " + selector.getFactory().getPackages().values().size() + " package(s) ...");

        getVerboseListener().print("Printing the graph ...");

        Printer printer;
        if (getCommandLine().isPresent("xml")) {
            printer = new XMLPrinter(out, getCommandLine().getSingleSwitch("encoding"), getCommandLine().getSingleSwitch("dtd-prefix"));
        } else {
            printer = new TextPrinter(out);
        }

        if (getCommandLine().isPresent("indent-text")) {
            printer.setIndentText(getCommandLine().getSingleSwitch("indent-text"));
        }

        printer.traverseNodes(selector.getFactory().getPackages().values());
    }

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