/** XelfiCompilerMain class

* @author: Filip Dvorak

* @version: 1.3

*/

package xelfi.compiler;

import java.io.*;

import java.util.Arrays;

import javax.tools.JavaCompiler;

import javax.tools.StandardJavaFileManager;

import javax.tools.ToolProvider;

class XelfiCompilerMain extends Object implements MainCompiler

{

    /** Output from compiler is send here. */

  protected XelfiCompilerOutput out;

  XelfiCompilerMain(XelfiCompilerOutput o)

  {

    out = o;

  }

  public void compileClass(File file)

  {

    String args[] = null;

    if(CompilerOptions.getUseGparam())

    {

      args = new String[2];

      args[0] = "-g";

      args[1] = file.toString();

      output("Compiling: " + args[0] + " " + args[1]);

    }

    else

    {

      args = new String[1];

      args[0] = file.toString();

      output("Compiling: " + args[0]);

    }

    JavaCompiler compiler = ToolProvider.getSystemJavaCompiler();

    StandardJavaFileManager fm = compiler.getStandardFileManager(null, null, null);

    try {

      compiler.getTask(new OutputStreamWriter(out), fm, null, Arrays.asList(args).subList(0, args.length - 1), null, fm.getJavaFileObjects(args[args.length - 1])).call();

    } finally {

      try {

        fm.close();

      } catch (IOException ex) {

         ex.printStackTrace();

      }

    }

    output("\n");

  }

  public void error(String err)

  {

    out.topLevelError(err);

  }

  public void output(String msg)

  {

    out.topLevelOutput(msg);

  }

}