/** @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depLogger.fine("Generated source file '" + outputFile + "' is out-of-date, regenerate.");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;
}
}
}
/**
* 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;
}
}
}
