/*
 * The Apache Software License, Version 1.1
 *
 * Copyright (c) 1999 The Apache Software Foundation.  All rights 
 * reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer. 
 *
 * 2. 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.
 *
 * 3. The end-user documentation included with the redistribution, if
 *    any, must include the following acknowlegement:  
 *       "This product includes software developed by the 
 *        Apache Software Foundation (http://www.apache.org/)."
 *    Alternately, this acknowlegement may appear in the software itself,
 *    if and wherever such third-party acknowlegements normally appear.
 *
 * 4. The names "The Jakarta Project", "Ant", and "Apache Software
 *    Foundation" must not be used to endorse or promote products derived
 *    from this software without prior written permission. For written 
 *    permission, please contact apache@apache.org.
 *
 * 5. Products derived from this software may not be called "Apache"
 *    nor may "Apache" appear in their names without prior written
 *    permission of the Apache Group.
 *
 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED 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 APACHE SOFTWARE FOUNDATION OR
 * ITS 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.
 * ====================================================================
 *
 * This software consists of voluntary contributions made by many
 * individuals on behalf of the Apache Software Foundation.  For more
 * information on the Apache Software Foundation, please see
 * <http://www.apache.org/>.
 */
 
package org.apache.tools.ant.taskdefs.optional.ide;


import com.ibm.ivj.util.base.ExportCodeSpec;
import com.ibm.ivj.util.base.IvjException;
import com.ibm.ivj.util.base.Package;
import java.io.File;
import java.util.Enumeration;
import java.util.Vector;
import org.apache.tools.ant.BuildException;
import org.apache.tools.ant.Project;
import org.apache.tools.ant.Task;
import org.apache.tools.ant.types.PatternSet;

/**
 * Export packages from the Visual Age for Java workspace. 
 * The packages are specified similar to all other MatchingTasks. 
 * Since the VA Workspace is not file based, this task is simulating 
 * a directory hierarchy for the workspace:
 * The 'root' contains all project 'dir's, and the projects contain 
 * their respective package 'dir's.
 * Example:  
 * <blockquote> 
 * &lt;vajexport destdir="C:/builddir/source">
 * &nbsp;&lt;include name="/MyVAProject/org/foo/subsystem1/**" />
 * &nbsp;&lt;exclude name="/MyVAProject/org/foo/subsystem1/test/**"/>
 * &lt;/vajexport>
 * </blockquote>
 * exports all packages in the project MyVAProject which start with
 * 'org.foo.subsystem1' except of these starting with 
 * 'org.foo.subsystem1.test'.
 *
 * There are flags to choose which items to export:
 * exportSources:   export Java sources
 * exportResources: export project resources
 * exportClasses:   export class files
 * exportDebugInfo: export class files with debug info (use with exportClasses)
 * default is exporting Java files and resources.
 *
 * @author Wolf Siberski, TUI Infotec GmbH
 */

public class VAJExport extends Task {
    protected File destDir;
    protected boolean exportSources = true;
    protected boolean exportResources = true;
    protected boolean exportClasses = false;
    protected boolean exportDebugInfo = false;
    protected boolean useDefaultExcludes = true;

    protected PatternSet patternSet = new PatternSet();

    /**
     * add a name entry on the exclude list
     */
    public PatternSet.NameEntry createExclude() {
        return patternSet.createExclude();
    }

    /**
     * add a name entry on the include list
     */
    public PatternSet.NameEntry createInclude() {
        return patternSet.createInclude();
    }

    /**
     * do the export
     */
    public void execute() throws BuildException {
        // first off, make sure that we've got a destdir
        if (destDir == null) {
            throw new BuildException("destdir attribute must be set!");
        }

        VAJWorkspaceScanner ds = this.getWorkspaceScanner();

        Package[] packages = ds.getIncludedPackages();

        export(packages);
    }

    /**
     * export the array of Packages
     */
    public void export(Package[] packages) {
        try {
            String dest = destDir.getAbsolutePath();

            log("Exporting " + packages.length + " package(s) to " + dest);
            for (int i = 0; i < packages.length; i++) {
                log("    " + packages[i].getName(), Project.MSG_VERBOSE);
            }

            ExportCodeSpec exportSpec = new ExportCodeSpec();

            exportSpec.setPackages(packages);
            exportSpec.includeJava(exportSources);
            exportSpec.includeClass(exportClasses);
            exportSpec.includeResources(exportResources);
            exportSpec.includeClassDebugInfo(exportDebugInfo);
            exportSpec.useSubdirectories(true);
            exportSpec.overwriteFiles(true);
            exportSpec.setExportDirectory(dest);
            VAJUtil.getWorkspace().exportData(exportSpec);
        } catch (IvjException ex) {
            throw VAJUtil.createBuildException("Exporting failed!", ex);
        }
    }

    /**
     * Returns the directory scanner needed to access the files to process.
     */
    protected VAJWorkspaceScanner getWorkspaceScanner() {
        VAJWorkspaceScanner scanner = new VAJWorkspaceScanner();
        scanner.setIncludes(patternSet.getIncludePatterns(getProject()));
        scanner.setExcludes(patternSet.getExcludePatterns(getProject()));
        if (useDefaultExcludes)
            scanner.addDefaultExcludes();
        scanner.scan();
        return scanner;
    }

    /**
     * Sets whether default exclusions should be used or not.
     *
     * @param useDefaultExcludes "true"|"on"|"yes" when default exclusions 
     *                           should be used, "false"|"off"|"no" when they
     *                           shouldn't be used.
     */
    public void setDefaultexcludes(boolean useDefaultExcludes) {
        this.useDefaultExcludes = useDefaultExcludes;
    }

    /**
     * Set the destination directory into which the Java source
     * files should be compiled.
     */
    public void setDestdir(File destDir) {
        this.destDir = destDir;
    }

    /**
     * Sets the set of exclude patterns. Patterns may be separated by a comma
     * or a space.
     *
     * @param excludes the string containing the exclude patterns
     */
    public void setExcludes(String excludes) {
        patternSet.setExcludes(excludes);
    }

    /**
     */
    public void setExportClasses(boolean doExport) {
        exportClasses = doExport;
    }

    /**
     */
    public void setExportDebugInfo(boolean doExport) {
        exportDebugInfo = doExport;
    }

    /**
     */
    public void setExportResources(boolean doExport) {
        exportResources = doExport;
    }

    /**
     */
    public void setExportSources(boolean doExport) {
        exportSources = doExport;
    }
    /**
     * Sets the set of include patterns. Patterns may be separated by a comma
     * or a space.
     *
     * @param includes the string containing the include patterns
     */
    public void setIncludes(String includes) {
        patternSet.setIncludes(includes);
    }
}