bundles/org.eclipse.build.tools/src/org/eclipse/releng/generators/FetchBaseTask.java

/*******************************************************************************
 * Copyright (c) 2005, 2006 IBM Corporation and others. All rights reserved.
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Public License v1.0 which accompanies this distribution,
 * and is available at http://www.eclipse.org/legal/epl-v10.html
 * 
 * Contributors: IBM Corporation - initial API and implementation
 *******************************************************************************/

package org.eclipse.releng.generators;

import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileWriter;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.Enumeration;
import java.util.Hashtable;
import java.util.Properties;

import org.apache.tools.ant.Task;

public class FetchBaseTask extends Task {

    /**
     * @param args
     */
    public static void main(final String[] args) {
        // TODO Auto-generated method stub
        final FetchBaseTask task = new FetchBaseTask();
        task.mapFile = "d:/workspace/org.eclipse.releng/maps/base.map";
        task.outputFile = "d:/workspace/org.eclipse.releng/fetch.xml";
        task.execute();
    }

    private String          mapFile;
    private String          outputFile;
    private final Hashtable entries;

    public FetchBaseTask() {
        entries = new Hashtable();
    }

    @Override
    public void execute() {
        readMap();
        printScript(fetchScript());
    }

    private String fetchDirectoryTarget(final String type, final String id, final String fullName, final String[] cvsinfo) {
        return "\t<target name=\"fetch.base." + type + "@" + id + "\">\n" + "\t\t<mkdir dir=\"${baseLocation}/" + type + "s\" />\n"
                + "\t\t<property name=\"cvsroot\" value=\"" + cvsinfo[1] + "\" />\n" + "\t\t<cvs command=\"export -d " + fullName
                + "\"\n" + "\t\t\tcvsRoot=\"${cvsroot}\"\n" + "\t\t\tpackage=\"" + cvsinfo[3] + "\"\n" + "\t\t\ttag=\""
                + cvsinfo[0] + "\"\n" + "\t\t\tdest=\"${baseLocation}/" + type + "s\"\n" + "\t\t\tquiet=\"true\"/>\n"
                + "\t\t<delete includeemptydirs=\"true\">\n" + "\t\t\t<fileset dir=\"${baseLocation}/" + type
                + "s\" includes=\"**/CVS/**\" defaultexcludes=\"no\"/>\n" + "\t\t</delete>\n" + "\t</target>\n";

    }

    private String fetchJarTarget(final String type, final String id, final String[] cvsinfo) {
        return "\t<target name=\"fetch.base." + type + "@" + id + "\">\n" + "\t\t<mkdir dir=\"${baseLocation}/" + type + "s\" />\n"
                + "\t\t<property name=\"cvsroot\" value=\"" + cvsinfo[1] + "\" />\n" + "\t\t<property name=\"fetchTag\" value=\""
                + cvsinfo[0] + "\" />\n" + "\t\t<cvs command=\"export -d " + type + "s\"\n" + "\t\t\tcvsRoot=\"${cvsroot}\"\n"
                + "\t\t\tpackage=\"" + cvsinfo[3] + "\"\n" + "\t\t\ttag=\"${fetchTag}\"\n" + "\t\t\tdest=\"${baseLocation}\"\n"
                + "\t\t\tquiet=\"true\"/>\n" + "\t\t<delete includeemptydirs=\"true\">\n" + "\t\t\t<fileset dir=\"${baseLocation}/"
                + type + "s\" includes=\"**/CVS/**\" defaultexcludes=\"no\"/>\n" + "\t\t</delete>\n" + "\t</target>\n";

    }

    private String fetchScript() {
        String script = "<project default=\"all.elements\">\n"
                + "<!--Ant script which will fetch pre-built plug-ins and features to a location where they\n"
                + "will be consumed by the build, i.e. ${baseLocation}.  Stored in this project to capture revisions/urls of\n"
                + "binaries.-->\n" + "\t<property name=\"baseLocation\" value=\"${basedir}/baseLocation\" />\n"
                + "\t<target name=\"all.elements\">\n";

        Enumeration keys = entries.keys();
        while (keys.hasMoreElements()) {
            script = script.concat("\t\t<antcall target=\"" + keys.nextElement() + "\" />\n");
        }
        script = script.concat("\t</target>");
        keys = entries.keys();
        while (keys.hasMoreElements()) {
            script = script.concat("\n\n" + entries.get(keys.nextElement()));
        }
        script = script.concat("</project>");

        return script;
    }

    public String getMapFile() {
        return mapFile;
    }

    public String getOutputFile() {
        return outputFile;
    }

    private String getScript(final String key, final String entry) {
        final String[] keyParts = key.split("@");
        if (keyParts.length == 0) {
            return null;
        }
        final String[] cvsinfo = entry.split(",");
        if (cvsinfo.length < 3) {
            return null;
        }

        final String[] typeParts = keyParts[0].split("base.");
        final String type = typeParts[1];
        final String id = keyParts[1];

        final String fullName = entry.substring(entry.lastIndexOf("/") + 1, entry.length());
        if (fullName.endsWith(".jar")) {
            return fetchJarTarget(type, id, cvsinfo);
        } else {
            return fetchDirectoryTarget(type, id, fullName, cvsinfo);
        }
    }

    private void printScript(final String script) {
        try {
            final PrintWriter out = new PrintWriter(new FileWriter(new File(outputFile)));
            out.print(script);
            out.flush();
            out.close();
        }
        catch (final IOException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
    }

    private void readMap() {
        final File file = new File(mapFile);
        final Properties properties = new Properties();
        try {
            properties.load(new FileInputStream(file));
            final Enumeration keys = properties.keys();
            while (keys.hasMoreElements()) {
                final String key = keys.nextElement().toString();
                final String script = getScript(key, properties.get(key).toString());
                entries.put("fetch." + key, script);
            }

        }
        catch (final FileNotFoundException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
        catch (final IOException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
    }

    public void setMapFile(final String mapFile) {
        this.mapFile = mapFile;
    }

    public void setOutputFile(final String outputFile) {
        this.outputFile = outputFile;
    }
}