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/* CompilationMXBeanImpl.java - Implementation of a compilation bean

   Copyright (C) 2006 Free Software Foundation

This file is part of GNU Classpath.

GNU Classpath is free software; you can redistribute it and/or modify

it under the terms of the GNU General Public License as published by

the Free Software Foundation; either version 2, or (at your option)

any later version.

GNU Classpath is distributed in the hope that it will be useful, but

WITHOUT ANY WARRANTY; without even the implied warranty of

MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

General Public License for more details.

You should have received a copy of the GNU General Public License

along with GNU Classpath; see the file COPYING.  If not, write to the

Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA

02110-1301 USA.

Linking this library statically or dynamically with other modules is

making a combined work based on this library.  Thus, the terms and

conditions of the GNU General Public License cover the whole

combination.

As a special exception, the copyright holders of this library give you

permission to link this library with independent modules to produce an

executable, regardless of the license terms of these independent

modules, and to copy and distribute the resulting executable under

terms of your choice, provided that you also meet, for each linked

independent module, the terms and conditions of the license of that

module.  An independent module is a module which is not derived from

or based on this library.  If you modify this library, you may extend

this exception to your version of the library, but you are not

obligated to do so.  If you do not wish to do so, delete this

exception statement from your version. */

package gnu.java.lang.management;

import gnu.classpath.SystemProperties;

import java.lang.management.CompilationMXBean;

import javax.management.NotCompliantMBeanException;

/**

 * Provides access to information about the JIT

 * compiler of the virtual machine, if one exists.

 * Instances of this bean are obtained by calling

 * {@link ManagementFactory#getCompilationMXBean()},

 * if this is the case.

 *

 * @author Andrew John Hughes (gnu_andrew@member.fsf.org)

 * @since 1.5

 */

public final class CompilationMXBeanImpl

  extends BeanImpl

  implements CompilationMXBean

{

  /**

   * Constant for compiler name.

   */

  private static final String COMPILER_NAME = "gnu.java.compiler.name";

  /**

   * Constant for compilation time support.

   */

  private static final String COMPILATION_TIME_SUPPORT =

    "gnu.java.lang.management.CompilationTimeSupport";

  /**

   * Constructs a new <code>CompilationMXBeanImpl</code>.

   *

   * @throws NotCompliantMBeanException if this class doesn't implement

   *                                    the interface or a method appears

   *                                    in the interface that doesn't comply

   *                                    with the naming conventions.

   */

  public CompilationMXBeanImpl()

    throws NotCompliantMBeanException

  {

    super(CompilationMXBean.class);

  }

  public String getName()

  {

    return SystemProperties.getProperty(COMPILER_NAME);

  }

  public boolean isCompilationTimeMonitoringSupported()

  {

    return SystemProperties.getProperty(COMPILATION_TIME_SUPPORT) != null;

  }

  public long getTotalCompilationTime()

  {

    if (isCompilationTimeMonitoringSupported())

      return VMCompilationMXBeanImpl.getTotalCompilationTime();

    else

      throw new UnsupportedOperationException("Compilation time monitoring "

                                              + "is not supported");

  }

}