public void registerResource(IString javaClass, IEvaluatorContext ctx) {
try {
String className = javaClass.getValue();
List<ClassLoader> loaders = ctx.getEvaluator().getClassLoaders();
Class<?> resourceClass = null;
for (ClassLoader loader : loaders) {
try {
resourceClass = loader.loadClass(className);
} catch (ClassNotFoundException e) {
continue;
}
break;
}
if (resourceClass != null) {
IResource handler = (IResource) resourceClass.newInstance();
Resource.registerResourceHandler(handler);
} else {
throw new ClassNotFoundException(className);
}
} catch (ClassNotFoundException e) {
e.printStackTrace();
} catch (InstantiationException e) {
e.printStackTrace();
} catch (IllegalAccessException e) {
e.printStackTrace();
}
}
public IValue getTypedResource(ISourceLocation uriLoc, IValue type, IEvaluatorContext ctx) {
// TODO: We may not need this here, since we already create the same type internally
// when we create the resource. Commenting out for now...
Type resourceType = ((ReifiedType) type.getType()).getTypeParameters().getFieldType(0);
IResource handler = Resource.getResourceHandler(uriLoc);
ResourceResult rr = handler.createResource(ctx, uriLoc, resourceType);
return rr.getValue();
}
public void generateTypedInterfaceInternal(
IString tag, ISourceLocation uriLoc, IEvaluatorContext ctx) {
IResource handler = Resource.getResourceHandler(uriLoc);
String tagStr = tag.getValue();
Type t = handler.getResourceType(ctx, uriLoc);
PrintWriter currentOutStream = ctx.getStdOut();
// Declare an alias to the type of the resource
TypeStore ts = ctx.getCurrentEnvt().getStore();
Type alias2t = TypeFactory.getInstance().aliasType(ts, tagStr + "Type", t);
currentOutStream.println(
"Generated type alias " + alias2t.toString() + ": " + alias2t.getAliased().toString());
currentOutStream.flush();
// Declare a function that just uses the given URI. This way, if we provide
// the complete URI up front, we don't need to keep providing it later.
StringBuilder sb = new StringBuilder();
sb.append("public ").append(tagStr).append("Type ").append(tagStr).append("() { ");
sb.append(" return getTypedResource(")
.append(uriLoc.toString())
.append(",#")
.append(tagStr)
.append("Type); }");
IConstructor declTree =
ctx.getEvaluator()
.parseCommand(
ctx.getEvaluator().getMonitor(),
sb.toString(),
ctx.getCurrentAST().getLocation().getURI());
Command cmd = ctx.getEvaluator().getBuilder().buildCommand(declTree);
Environment env = ctx.getCurrentEnvt();
ctx.setCurrentEnvt(env.getRoot());
Result<IValue> fun0 = ctx.getEvaluator().eval(ctx.getEvaluator().getMonitor(), cmd);
ctx.unwind(env);
currentOutStream.println("Generated function " + fun0.toString());
currentOutStream.flush();
}
