sunpreverifier.java

MoMEUnit是一个单元测试的J2ME的应用程序xUnit架构实例。这是来自JUnit框架

package org.momeunit.ant.preverifier;

import java.io.File;
import java.io.IOException;
import java.util.Enumeration;

import org.apache.tools.ant.BuildException;
import org.apache.tools.ant.Location;
import org.apache.tools.ant.Project;
import org.momeunit.ant.core.Utility;

/**
 * Preverifier that runs Sun WTK <code>preverify</code> tool.
 * 
 * @author Sergio Morozov
 * @version 1.1.2
 */
public class SunPreverifier extends Preverifier
{
  /**
   * Array of preverify executables to be tested.
   */
  private static final String[] EXECUTABLES = { "bin/preverify",
      "bin/preverify.exe" };

  /**
   * Instantiates Sun preverifier with given WTK home directory.
   * 
   * @param wtkHome
   *          WTK home directory.
   * @since 1.1
   */
  public SunPreverifier(File wtkHome)
  {
    super(wtkHome);
  }

  /**
   * Instantiates Sun preverifier.
   * 
   * @since 1.1
   */
  public SunPreverifier()
  {
    this(null);
  }

  /**
   * Starts Sun WTK <code>preverify</code> tool.
   * 
   * @since 1.1
   */
  public Process execute(File src, File toDir, File atDir)
  {
    if (getWtkHome() == null) throw new NullPointerException("wtkHome");
    Process res = null;
    Utility.assertExists(src);
    Utility.assertDirectory(toDir);
    if (atDir != null) Utility.assertDirectory(atDir);
    StringBuffer sb = new StringBuffer();
    sb.append(getExecutable());
    if (getClasspath() != null && getClasspath().size() > 0) sb.append(
        " -classpath ").append(getClasspath().toString());
    sb.append(" -d ").append(toDir.getAbsolutePath());
    if (getConfig() != null) sb.append(" -target CLDC").append(getConfig());
    for (Enumeration e = enumeratePropertyNames(); e.hasMoreElements();)
    {
      String name = (String) e.nextElement();
      if (name.equals("cldc")) sb.append(" -cldc");
      else if (name.equals("cldc10")) sb.append(" -cldc1.0");
      else if (name.equals("nonative")) sb.append(" -nonative");
      else if (name.equals("nofinalize")) sb.append(" -nofinalize");
      else if (name.equals("nofp")) sb.append(" -nofp");
      else throw new BuildException("unknown preverify property " + name,
          getTask() != null ? getTask().getLocation()
              : Location.UNKNOWN_LOCATION);
    }
    sb.append(' ').append(src.getAbsolutePath());
    try
    {
      res = Runtime.getRuntime().exec(sb.toString(), null, atDir);
      Utility.log(getTask(), "Prevrifier command-line " + sb.toString(),
          Project.MSG_DEBUG);
    } catch (IOException e)
    {
      throw new BuildException("Error executing preverifier.", e,
          getTask() != null ? getTask().getLocation()
              : Location.UNKNOWN_LOCATION);
    }
    return res;
  }

  /**
   * Returns existent executable of Sun WTK <code>preverify</code> tool.
   * 
   * @return the existent executable of Sun WTK <code>preverify</code> tool.
   * @throws BuildException
   *           when no executable found.
   * @since 1.1
   */
  public String getExecutable()
  {
    String res = null;
    for (int i = 0; i < EXECUTABLES.length; i++)
    {
      File executable = new File(getWtkHome().getAbsolutePath() + '/'
          + EXECUTABLES[i]);
      if (executable.exists() && executable.isFile()) res = executable
          .getAbsolutePath();
    }
    if (res == null) throw new BuildException("No Sun Preverifier found.");
    return res;
  }
}