/** @author ozcane */
public abstract class AbstractSourceGenerator extends AbstractStringTemplateProcessor {

  // The dep logger
  protected static Logger depLogger = FractalADLLogManager.getLogger("dep");

  @Inject protected OutputFileLocator outputFileLocatorItf;

  @Inject protected InputResourceLocator inputResourceLocatorItf;

  // ---------------------------------------------------------------------------
  // Constructor
  // ---------------------------------------------------------------------------

  protected AbstractSourceGenerator(final String templateGroupName) {
    super(templateGroupName);
  }

  // ---------------------------------------------------------------------------
  // Utility methods
  // ---------------------------------------------------------------------------

  protected boolean regenerate(
      final File outputFile, final Definition definition, final Map<Object, Object> context) {
    if (ForceRegenContextHelper.getForceRegen(context)) return true;

    if (!outputFile.exists()) {
      if (depLogger.isLoggable(Level.FINE)) {
        depLogger.fine("Generated source file '" + outputFile + "' does not exist, generate.");
      }
      return true;
    }

    if (!inputResourceLocatorItf.isUpToDate(
        outputFile, InputResourcesHelper.getInputResources(definition), context)) {
      if (depLogger.isLoggable(Level.FINE)) {
        depLogger.fine("Generated source file '" + outputFile + "' is out-of-date, regenerate.");
      }
      return true;
    } else {
      if (depLogger.isLoggable(Level.FINE)) {
        depLogger.fine(
            "Generated source file '" + outputFile + "' is up-to-date, do not regenerate.");
      }
      return false;
    }
  }
}
示例#2
0
/**
 * Delegating loader that tries to load ADL definition from binary files (if presents and up to
 * date).
 */
public class BinaryADLLoader extends AbstractDelegatingLoader {

  protected static Logger logger = FractalADLLogManager.getLogger("loader.BinaryLoader");

  @Inject protected ErrorManager errorManagerItf;

  @Inject protected ADLLocator adlLocatorItf;

  @Inject protected InputResourceLocator inputResourceLocatorItf;

  @Inject protected NodeFactory nodeFactoryItf;

  // ---------------------------------------------------------------------------
  // Implementation of the Loader interface
  // ---------------------------------------------------------------------------

  public Definition load(final String name, final Map<Object, Object> context) throws ADLException {

    if (ForceRegenContextHelper.getForceRegen(context)) {
      if (logger.isLoggable(Level.FINE))
        logger.log(Level.FINE, "Load ADL \"" + name + "\". Forced mode, load source");
      return loadSourceADL(name, context);
    }

    final URL binADL = adlLocatorItf.findBinaryADL(name, context);
    if (binADL == null) {
      if (logger.isLoggable(Level.FINE))
        logger.log(Level.FINE, "Load ADL \"" + name + "\". binary ADL not found, load source");
      return loadSourceADL(name, context);
    }

    final URL srcADL = adlLocatorItf.findSourceADL(name, context);
    if (srcADL == null) {
      // only binary file is available, load from binary file.
      if (logger.isLoggable(Level.FINE))
        logger.log(Level.FINE, "Load ADL \"" + name + "\". source unavailable, load binary");
      try {
        return loadBinaryADL(name, binADL, context);
      } catch (final IOException e) {
        errorManagerItf.logFatal(
            GenericErrors.INTERNAL_ERROR, e, "Can't read binary ADL " + binADL + ".");
        return null;
      }
    }

    // both binary and source file are available, check timestamps:
    boolean outOfDate;
    long binTimestamp = 0;
    try {
      binTimestamp = getTimestamp(binADL);
      outOfDate = getTimestamp(srcADL) >= binTimestamp;
    } catch (final MalformedURLException e) {
      if (logger.isLoggable(Level.WARNING))
        logger.log(Level.WARNING, "Load ADL \"" + name + "\". can't determine file timestamps");
      outOfDate = true;
    }
    if (outOfDate) {
      logger.log(
          Level.FINE, "Load ADL \"" + name + "\". Binary ADL older from source, load source");

    } else {
      // if binary file is more recent than source file, check dependencies.

      // load binary ADL to retrieve list of input resources.
      Definition binDef;
      try {
        binDef = loadBinaryADL(name, binADL, context);
      } catch (final IOException e) {
        errorManagerItf.logWarning(
            GenericErrors.INTERNAL_ERROR,
            e,
            "Can't read binary ADL " + binADL + ". Use source ADL.");
        return null;
      }

      if (binDef != null) {
        final Set<InputResource> dependencies = InputResourcesHelper.getInputResources(binDef);
        if (logger.isLoggable(Level.FINEST))
          logger.log(Level.FINEST, "Load ADL \"" + name + "\". check dependencies=" + dependencies);
        if (dependencies != null
            && inputResourceLocatorItf.isUpToDate(binTimestamp, dependencies, context)) {
          if (logger.isLoggable(Level.FINEST))
            logger.log(Level.FINEST, "Load ADL \"" + name + "\". Binary version is up-to-date");

          // binary version is up to date, return it
          return binDef;
        }
      }
    }

    if (logger.isLoggable(Level.FINE))
      logger.log(Level.FINE, "Load ADL \"" + name + "\". Binary ADL out of date, load source");
    // binary version is older than source file, load from source
    return loadSourceADL(name, context);
  }

  protected Definition loadSourceADL(final String name, final Map<Object, Object> context)
      throws ADLException {
    long t = 0;
    if (logger.isLoggable(Level.FINER)) t = currentTimeMillis();

    final Definition definition = clientLoader.load(name, context);

    if (logger.isLoggable(Level.FINER)) {
      t = currentTimeMillis() - t;
      logger.log(Level.FINER, "ADL \"" + name + "\" loaded from source in " + t + "ms.");
    }
    return definition;
  }

  protected Definition loadBinaryADL(
      final String name, final URL location, final Map<Object, Object> context)
      throws ADLException, IOException {
    try {
      final InputStream is = location.openStream();
      final NodeInputStream nis = new NodeInputStream(is, nodeFactoryItf.getClassLoader());
      if (logger.isLoggable(Level.FINE))
        logger.log(Level.FINE, "Load ADL \"" + name + "\". Read ADL from " + location);

      long t = 0;
      if (logger.isLoggable(Level.FINER)) t = currentTimeMillis();

      final Definition d = NodeUtil.castNodeError(nis.readObject(), Definition.class);

      if (logger.isLoggable(Level.FINER)) {
        t = currentTimeMillis() - t;
        logger.log(
            Level.FINER, "Load ADL \"" + name + "\".  read from binary file in " + t + "ms.");
      }

      nis.close();

      return d;
    } catch (final ClassNotFoundException e) {
      errorManagerItf.logFatal(
          GenericErrors.INTERNAL_ERROR, e, "Can't read binary ADL " + location);
      return null;
    }
  }
}