import org.apache.tools.ant.*;
import org.apache.tools.ant.taskdefs.*;
import atg.beanmaker.*;
import java.io.*;
import org.apache.tools.ant.types.*;

public class BeanMaker extends MatchingTask {

    private File dir;
    public void setDir(File dir) {
        this.dir = dir;
    }

    public File getDir(){
        return dir;
    }

    public void execute() throws BuildException {

        if (dir != null) {
            String sep = System.getProperty("file.separator");
            DirectoryScanner ds = super.getDirectoryScanner(dir);
            String [] files = ds.getIncludedFiles();
            String destDir;
            Commandline command;
            int index;
            System.out.println("   [make beans] Creating " + files.length +
                " beans in directory " + dir);
            System.out.print("   ");
            for( int i=0;i<files.length;i++){
                index = files[i].lastIndexOf( sep );
                if (index >= 0){
                    destDir = files[i].substring(0, index );
                } else {
                    destDir = ".";
                }
                try{
                    System.out.print('.');
                    command = new Commandline( "java atg.beanmaker.BeanMaker -d " + destDir + " " + files[i]);
                    run( command.getCommandline() );
                } catch (Exception e) {
                    throw( new BuildException( e.getMessage() ) );
                }
            }
            System.out.println();
        }
    }

     /**
     * Executes the given classname with the given arguments in a separate VM.
     */
    private int run(String[] command) throws BuildException {
        Execute exe = new Execute(new LogStreamHandler(this, Project.MSG_INFO,
                                                       Project.MSG_WARN),
                                  null);

        exe.setAntRun(project);
        if (dir == null) {
            dir = project.getBaseDir();
        } else if (!dir.exists() || !dir.isDirectory()) {
            throw new BuildException(dir.getAbsolutePath()+" is not a valid directory",
                                     location);
        }

        exe.setWorkingDirectory(dir);
        exe.setCommandline(command);
        try {
            return exe.execute();
        } catch (IOException e) {
            throw new BuildException(e, location);
        }
    }
}