//===-------------------------- Factory.java ------------------------------===//
//
//                            The VMKit project
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//

package org.j3.mmtk;

import org.vmutil.options.OptionSet;
import org.mmtk.utility.gcspy.Color;
import org.mmtk.utility.gcspy.drivers.AbstractDriver;
import org.mmtk.vm.ReferenceProcessor.Semantics;

import org.j3.runtime.VM;

/**
 * This is a VM-specific class which defines factory methods for
 * VM-specific types which must be instantiated within MMTk.
 *
 * @see org.mmtk.vm.Factory
 */
public final class Factory extends org.mmtk.vm.Factory {

  private static final String DEFAULT_MMTK_PROPERTIES = ".mmtk.properties";
  private static final String CONFIG_FILE_PROPERTY = "mmtk.properties";

  /**
   * Create or retrieve the OptionSet used for MMTk options.
   *
   * @return A concrete VM-specific OptionSet instance
   */
  public OptionSet getOptionSet() {
    return org.j3.options.OptionSet.gc;
  }

  /**
   * Create a new ActivePlan instance using the appropriate VM-specific
   * concrete ActivePlan sub-class.
   *
   * @see ActivePlan
   * @return A concrete VM-specific ActivePlan instance.
   */
  public org.mmtk.vm.ActivePlan newActivePlan() {
    try {
      return new ActivePlan();
    } catch (Exception e) {
      VM.sysFail("Failed to allocate new ActivePlan!");
      return null; // never get here
    }
  }

  /**
   * Create a new Assert instance using the appropriate VM-specific
   * concrete Assert sub-class.
   *
   * @see Assert
   * @return A concrete VM-specific Assert instance.
   */
  public org.mmtk.vm.Assert newAssert() {
    try {
      return new Assert();
    } catch (Exception e) {
      VM.sysFail("Failed to allocate new Assert!");
      return null; // never get here
    }
  }

  /**
   * Create a new Barriers instance using the appropriate VM-specific
   * concrete Barriers sub-class.
   *
   * @see Barriers
   * @return A concrete VM-specific Barriers instance.
   */
  public org.mmtk.vm.Barriers newBarriers() {
    try {
      return new Barriers();
    } catch (Exception e) {
      VM.sysFail("Failed to allocate new Barriers!");
      return null; // never get here
    }
  }

  /**
   * Create a new Collection instance using the appropriate VM-specific
   * concrete Collection sub-class.
   *
   * @see Collection
   * @return A concrete VM-specific Collection instance.
   */
  public org.mmtk.vm.Collection newCollection() {
    try {
      return new Collection();
    } catch (Exception e) {
      VM.sysFail("Failed to allocate new Collection!");
      return null; // never get here
    }
  }

  /**
   * Create a new BuildTimeConfig instance using the appropriate VM-specific
   * concrete BuildTimeConfig sub-class.
   *
   * @see Collection
   * @return A concrete VM-specific Collection instance.
   */
  public org.mmtk.vm.BuildTimeConfig newBuildTimeConfig() {
    try {
      return new BuildTimeConfig(CONFIG_FILE_PROPERTY, DEFAULT_MMTK_PROPERTIES);
    } catch (Exception e) {
      VM.sysFail("Failed to allocate new BuildTimeConfiguration!");
      return null; // never get here
    }
  }

  /**
   * Create a new Lock instance using the appropriate VM-specific
   * concrete Lock sub-class.
   *
   * @see Lock
   *
   * @param name The string to be associated with this lock instance
   * @return A concrete VM-specific Lock instance.
   */
  public org.mmtk.vm.Lock newLock(String name) {
    try {
      return new Lock(name);
    } catch (Exception e) {
      VM.sysFail("Failed to allocate new Lock!");
      return null; // never get here
    }
  }

  /**
   * Create a new Memory instance using the appropriate VM-specific
   * concrete Memory sub-class.
   *
   * @see Memory
   * @return A concrete VM-specific Memory instance.
   */
  public org.mmtk.vm.Memory newMemory() {
    try {
      return new Memory();
    } catch (Exception e) {
      VM.sysFail("Failed to allocate new Memory!");
      return null; // never get here
    }
  }

  /**
   * Create a new ObjectModel instance using the appropriate VM-specific
   * concrete ObjectModel sub-class.
   *
   * @see ObjectModel
   * @return A concrete VM-specific ObjectModel instance.
   */
  public org.mmtk.vm.ObjectModel newObjectModel() {
    try {
      return new ObjectModel();
    } catch (Exception e) {
      VM.sysFail("Failed to allocate new ObjectModel!");
      return null; // never get here
    }
  }

  /**
   * Create a new ReferenceProcessor instance using the appropriate VM-specific
   * concrete ReferenceProcessor sub-class.
   *
   * @see ReferenceProcessor
   * @return A concrete VM-specific ReferenceProcessor instance.
   */
  public org.mmtk.vm.ReferenceProcessor newReferenceProcessor(Semantics semantics) {
    try {
      return ReferenceProcessor.get(semantics);
    } catch (Exception e) {
      VM.sysFail("Failed to allocate new ReferenceProcessor!");
      return null; // never get here
    }
  }

  /**
   * Create a new FinalizableProcessor instance using the appropriate VM-specific
   * concrete FinalizableProcessor sub-class.
   *
   * @see ReferenceProcessor
   * @return A concrete VM-specific FinalizableProcessor instance.
   */
  public org.mmtk.vm.FinalizableProcessor newFinalizableProcessor() {
    try {
      return FinalizableProcessor.getProcessor();
    } catch (Exception e) {
      VM.sysFail("Failed to allocate new FinalizableProcessor!");
      return null; // never get here
    }
  }

  /**
   * Create a new Scanning instance using the appropriate VM-specific
   * concrete Scanning sub-class.
   *
   * @see Scanning
   * @return A concrete VM-specific Scanning instance.
   */
  public org.mmtk.vm.Scanning newScanning() {
    try {
      return new Scanning();
    } catch (Exception e) {
      VM.sysFail("Failed to allocate new Scanning!");
      return null; // never get here
    }
  }

  /**
   * Create a new Statistics instance using the appropriate VM-specific
   * concrete Statistics sub-class.
   *
   * @see Statistics
   * @return A concrete VM-specific Statistics instance.
   */
  public org.mmtk.vm.Statistics newStatistics() {
    try {
      return new Statistics();
    } catch (Exception e) {
      VM.sysFail("Failed to allocate new Statistics!");
      return null; // never get here
    }
  }

  /**
   * Create a new Strings instance using the appropriate VM-specific
   * concrete Strings sub-class.
   *
   * @see Strings
   * @return A concrete VM-specific Strings instance.
   */
  public org.mmtk.vm.Strings newStrings() {
    try {
      return new Strings();
    } catch (Exception e) {
      VM.sysFail("Failed to allocate new Strings!");
      return null; // never get here
    }
  }

  /**
   * Create a new SynchronizedCounter instance using the appropriate
   * VM-specific concrete SynchronizedCounter sub-class.
   *
   * @see SynchronizedCounter
   *
   * @return A concrete VM-specific SynchronizedCounter instance.
   */
  public org.mmtk.vm.SynchronizedCounter newSynchronizedCounter() {
    try {
      return new SynchronizedCounter();
    } catch (Exception e) {
     VM.sysFail("Failed to allocate new SynchronizedCounter!");
      return null; // never get here
    }
  }

  /**
   * Create a new TraceInterface instance using the appropriate VM-specific
   * concrete TraceInterface sub-class.
   *
   * @see TraceInterface
   * @return A concrete VM-specific TraceInterface instance.
   */
  public org.mmtk.vm.TraceInterface newTraceInterface() {
    try {
      return new TraceInterface();
    } catch (Exception e) {
      VM.sysFail("Failed to allocate new TraceInterface!");
      return null; // never get here
    }
  }

  /**
   * Create a new MMTk_Events instance using the appropriate VM-specific
   * concrete MMTk_Events sub-class.
   *
   * @see MMTk_Events
   * @return A concrete VM-specific MMTk_Events instance.
   */
  public org.mmtk.vm.MMTk_Events newEvents() {
    try {
      return new MMTk_Events();
    } catch (Exception e) {
      VM.sysFail("Failed to allocate new MMTk_Events!");
      return null; // never get here
    }
  }

  public org.mmtk.vm.Debug newDebug() {
    return new Debug();
  }

  /**********************************************************************
   * GCspy methods
   */

  /**
   * Create a new Util instance using the appropriate VM-specific
   * concrete Util sub-class.
   *
   * @see org.mmtk.vm.gcspy.Util
   * @return A concrete VM-specific Util instance.
   */
  public org.mmtk.vm.gcspy.Util newGCspyUtil() {
    try {
      return null;
    } catch (Exception e) {
      VM.sysFail("Failed to allocate new Util!");
      return null; // never get here
    }
  }

  /**
   * Create a new ServerInterpreter instance using the appropriate VM-specific
   * concrete ServerInterpreter sub-class.
   *
   * @see org.mmtk.vm.gcspy.ServerInterpreter
   * @return A concrete VM-specific ServerInterpreter instance.
   */
  public org.mmtk.vm.gcspy.ServerInterpreter newGCspyServerInterpreter() {
    try {
      return null;
    } catch (Exception e) {
      VM.sysFail("Failed to allocate new ServerInterpreter!");
      return null; // never get here
    }
  }

  /**
   * Create a new ServerSpace instance using the appropriate VM-specific
   * concrete ServerSpace sub-class.
   *
   * @param serverInterpreter The server that owns this space
   * @param serverName The server's name
   * @param driverName The space driver's name
   * @param title Title for the space
   * @param blockInfo A label for each block
   * @param tileNum Max number of tiles in this space
   * @param unused A label for unused blocks
   * @param mainSpace Whether this space is the main space
   *
   * @see org.mmtk.vm.gcspy.ServerSpace
   * @return A concrete VM-specific ServerSpace instance.
   */
  public org.mmtk.vm.gcspy.ServerSpace newGCspyServerSpace(
      org.mmtk.vm.gcspy.ServerInterpreter serverInterpreter,
      String serverName,
      String driverName,
      String title,
      String blockInfo,
      int tileNum,
      String unused,
      boolean mainSpace){
    try {
      return null;
    } catch (Exception e) {
      VM.sysFail("Failed to allocate new ServerSpace!");
      return null; // never get here
    }
  }

  /**
   * Create a new ByteStream instance using the appropriate
   * VM-specific concrete ByteStream sub-class.
   *
   * @param driver        The driver that owns this Stream
   * @param name           The name of the stream (e.g. "Used space")
   * @param minValue       The minimum value for any item in this stream.
   *                       Values less than this will be represented as "minValue-"
   * @param maxValue       The maximum value for any item in this stream.
   *                       Values greater than this will be represented as "maxValue+"
   * @param zeroValue      The zero value for this stream
   * @param defaultValue   The default value for this stream
   * @param stringPre      A string to prefix values (e.g. "Used: ")
   * @param stringPost     A string to suffix values (e.g. " bytes.")
   * @param presentation   How a stream value is to be presented.
   * @param paintStyle     How the value is to be painted.
   * @param indexMaxStream The index of the maximum stream if the presentation is *_VAR.
   * @param colour         The default colour for tiles of this stream
   * @see org.mmtk.vm.gcspy.IntStream
   *
   * @return A concrete VM-specific ByteStream instance.
   */
  public org.mmtk.vm.gcspy.ByteStream newGCspyByteStream(
      AbstractDriver driver,
      String name,
      byte minValue,
      byte maxValue,
      byte zeroValue,
      byte defaultValue,
      String stringPre,
      String stringPost,
      int presentation,
      int paintStyle,
      int indexMaxStream,
      Color colour,
      boolean summary) {
    try {
      return null;
    } catch (Exception e) {
      VM.sysFail("Failed to allocate new ByteStream!");
      return null; // never get here
    }
  }
  /**
   * Create a new IntStream instance using the appropriate
   * VM-specific concrete IntStream sub-class.
   *
   * @param driver        The driver that owns this Stream
   * @param name           The name of the stream (e.g. "Used space")
   * @param minValue       The minimum value for any item in this stream.
   *                       Values less than this will be represented as "minValue-"
   * @param maxValue       The maximum value for any item in this stream.
   *                       Values greater than this will be represented as "maxValue+"
   * @param zeroValue      The zero value for this stream
   * @param defaultValue   The default value for this stream
   * @param stringPre      A string to prefix values (e.g. "Used: ")
   * @param stringPost     A string to suffix values (e.g. " bytes.")
   * @param presentation   How a stream value is to be presented.
   * @param paintStyle     How the value is to be painted.
   * @param indexMaxStream The index of the maximum stream if the presentation is *_VAR.
   * @param colour         The default colour for tiles of this stream
   * @see org.mmtk.vm.gcspy.IntStream
   *
   * @return A concrete VM-specific IntStream instance.
   */
  public org.mmtk.vm.gcspy.IntStream newGCspyIntStream(
      AbstractDriver driver,
      String name,
      int minValue,
      int maxValue,
      int zeroValue,
      int defaultValue,
      String stringPre,
      String stringPost,
      int presentation,
      int paintStyle,
      int indexMaxStream,
      Color colour,
      boolean summary) {
    try {
      return null;
    } catch (Exception e) {
      VM.sysFail("Failed to allocate new IntStream!");
      return null; // never get here
    }
  }

  /**
   * Create a new ShortStream instance using the appropriate
   * VM-specific concrete ShortStream sub-class.
   *
   * @param driver        The driver that owns this Stream
   * @param name           The name of the stream (e.g. "Used space")
   * @param minValue       The minimum value for any item in this stream.
   *                       Values less than this will be represented as "minValue-"
   * @param maxValue       The maximum value for any item in this stream.
   *                       Values greater than this will be represented as "maxValue+"
   * @param zeroValue      The zero value for this stream
   * @param defaultValue   The default value for this stream
   * @param stringPre      A string to prefix values (e.g. "Used: ")
   * @param stringPost     A string to suffix values (e.g. " bytes.")
   * @param presentation   How a stream value is to be presented.
   * @param paintStyle     How the value is to be painted.
   * @param indexMaxStream The index of the maximum stream if the presentation is *_VAR.
   * @param colour         The default colour for tiles of this stream
   * @see org.mmtk.vm.gcspy.IntStream
   *
   * @return A concrete VM-specific ShortStream instance.
   */
  public org.mmtk.vm.gcspy.ShortStream newGCspyShortStream(
      AbstractDriver driver,
      String name,
      short minValue,
      short maxValue,
      short zeroValue,
      short defaultValue,
      String stringPre,
      String stringPost,
      int presentation,
      int paintStyle,
      int indexMaxStream,
      Color colour,
      boolean summary) {
    try {
      return null;
    } catch (Exception e) {
      VM.sysFail("Failed to allocate new ShortStream!");
      return null; // never get here
    }
  }
}