Annotation[] extractAnnotations(
TreeLogger logger,
JClassType type,
JMethod ifaceMethod,
JMethod classMethod,
GeneratorContext ctx) {
Map<Class<?>, Annotation> unique = new LinkedHashMap<Class<?>, Annotation>();
// Prefer annotation on classes before interfaces.
for (Annotation classAnno : classMethod.getAnnotations()) {
unique.put(classAnno.annotationType(), classAnno);
}
// Transverse supertypes
JClassType next = type.getSuperclass();
while (next != null) {
JMethod method = next.findMethod(ifaceMethod.getName(), ifaceMethod.getParameterTypes());
if (method != null)
for (Annotation classAnno : method.getAnnotations()) {
unique.put(classAnno.annotationType(), classAnno);
}
next = next.getSuperclass();
}
for (Annotation ifaceAnno : ifaceMethod.getAnnotations()) {
unique.put(ifaceAnno.annotationType(), ifaceAnno);
}
return unique.values().toArray(new Annotation[unique.size()]);
}
private void implementSetter(
TreeLogger logger,
MethodBuffer mb,
JMethod method,
ModelMagic manifest,
HasModelFields models,
Annotation[] annos) {
JPrimitiveType primitive = method.getReturnType().isPrimitive();
boolean isVoid = primitive == JPrimitiveType.VOID;
boolean isFluent = ModelGeneratorGwt.isFluent(method);
String name = ModelGeneratorGwt.fieldName(method, manifest);
ModelField field = models.getOrMakeField(name);
field.addSetter(
X_Source.binaryToSource(method.getReturnType().getQualifiedBinaryName()),
name,
ModelGeneratorGwt.toTypes(method.getParameterTypes()))
.fluent =
isFluent;
if (!isFluent && !isVoid) {
mb.println("var value = getProperty(\"" + name + "\");");
}
JParameter[] params = method.getParameters();
if (params.length != 1)
throw new NotConfiguredCorrectly(
"A setter method, " + method.getJsniSignature() + " must have exactly one parameter");
mb.println("setProperty(\"" + name + "\", A);");
if (!isVoid) mb.println("return " + (isFluent ? "this;" : "value;"));
}
private void implementAction(
TreeLogger logger,
ModelGenerator generator,
JMethod method,
ModelMagic models,
Annotation[] annos) {
boolean fluent = ModelGeneratorGwt.isFluent(method);
JPrimitiveType primitive = method.getReturnType().isPrimitive();
if (primitive != JPrimitiveType.VOID) {
if (!fluent) {
// non-fluent, non-void return type is not an action
// TODO change this!
// implementGetter(logger, mb, method, models, annos,
// method.getReturnType().getSimpleSourceName());
logger.log(
Type.ERROR,
"No getter for "
+ method.getJsniSignature()
+ "; "
+ "If your type does not use javabean getField() naming conventions, "
+ "then you MUST annotate a getter field with @GetterField");
}
return;
}
MethodBuffer mb =
generator.createMethod(
method.getReturnType().getQualifiedSourceName(),
method.getName(),
ModelGeneratorGwt.typeToParameterString(method.getParameterTypes()));
if (method.getName().equals("clear")) {
// implement clear
}
if (fluent) {
mb.println("return this;");
}
}
@Override
public void visitClientRpc(TreeLogger logger, JClassType type, ConnectorBundle bundle)
throws UnableToCompleteException {
checkGenericType(logger, type);
Set<? extends JClassType> hierarchy = type.getFlattenedSupertypeHierarchy();
for (JClassType subType : hierarchy) {
JMethod[] methods = subType.getMethods();
for (JMethod method : methods) {
checkReturnType(logger, method);
bundle.setNeedsInvoker(type, method);
bundle.setNeedsParamTypes(type, method);
if (method.getAnnotation(NoLayout.class) != null) {
bundle.setMethodAttribute(type, method, MethodAttribute.NO_LAYOUT);
}
JType[] parameterTypes = method.getParameterTypes();
for (JType paramType : parameterTypes) {
bundle.setNeedsSerialize(paramType);
}
}
}
}
public void build(
TreeLogger logger, SourceBuilder<ModelMagic> builder, GeneratorContext ctx, JClassType type)
throws UnableToCompleteException {
ModelMagic models = builder.getPayload();
ModelGenerator generator = new ModelGenerator(builder);
// Step one; determine if we already have a concrete type or not.
// TODO if JClassType is final, we need to wrap it using a delegate model.
JClassType concrete;
// ClassBuffer cb = builder.getClassBuffer();
JClassType root = models.getRootType(logger, ctx);
if (type.isInterface() == null && type != root) {
concrete = type;
generator.setSuperClass(type.getQualifiedSourceName());
} else {
// We have an interface on our hands; search for an existing or
// buildable model.
// search for a supertype to inherit. Anything that extends Model,
// does not implement any method we do implement, preferred type
// being the one that implements the most interfaces possible
final JClassType model;
try {
model = ctx.getTypeOracle().getType(Model.class.getName());
} catch (NotFoundException e) {
logger.log(
Type.ERROR,
"Cannot load "
+ Model.class.getName()
+ "; "
+ "make sure you have xapi-gwt-model:sources.jar on classpath.");
throw new UnableToCompleteException();
}
concrete = model;
for (JClassType supertype : concrete.getFlattenedSupertypeHierarchy()) {
// Only interfaces explicitly extending Model become concrete.
if (ModelGeneratorGwt.canBeSupertype(type, supertype)) {
// prefer the concrete type with the most methods in common.
concrete = supertype;
}
}
if (concrete == null || concrete == model) {
concrete = models.getRootType(logger, ctx);
generator.setSuperClass(concrete.getQualifiedSourceName());
} else {
// We have to make sure this concrete supertype is created.
if (!models.hasModel(concrete.getQualifiedSourceName())) {
// Concrete type is not cached. Build it now.
RebindResult result =
ModelGeneratorGwt.execImpl(logger, ctx, concrete.getQualifiedSourceName());
generator.setSuperClass(result.getResultTypeName());
}
}
}
// This will probably become jsni, if we can avoid jso interface sickness...
generator.createFactory(type.getQualifiedSourceName());
HasModelFields fieldMap = new HasModelFields();
fieldMap.setDefaultSerializable(type.getAnnotation(Serializable.class));
for (JMethod method : methods.keySet()) {
if (!toGenerate.contains(ModelGeneratorGwt.toSignature(method))) {
logger.log(
Type.TRACE, "Skipping method defined in supertype: " + method.getJsniSignature());
continue;
}
Annotation[] annos = methods.get(method);
String methodName = method.getName();
String returnType = method.getReturnType().getQualifiedSourceName();
String params = ModelGeneratorGwt.typeToParameterString(method.getParameterTypes());
// TODO: check imports if we are safe to use simple name.
returnType = method.getReturnType().getSimpleSourceName();
IsType returns = X_Source.binaryToSource(method.getReturnType().getQualifiedBinaryName());
IsType[] parameters = ModelGeneratorGwt.toTypes(method.getParameterTypes());
GetterFor getter = method.getAnnotation(GetterFor.class);
if (getter != null) {
String name = getter.value();
if (name.length() == 0) {
name = ModelUtil.stripGetter(method.getName());
}
ModelField field = fieldMap.getOrMakeField(name);
field.setType(returnType);
assert parameters.length == 0
: "A getter method cannot have parameters. "
+ "Generated code requires using getter methods without args. You provided "
+ method.getJsniSignature();
grabAnnotations(logger, models, fieldMap, method, annos, type);
field.addGetter(returns, methodName);
continue;
}
SetterFor setter = method.getAnnotation(SetterFor.class);
if (setter != null) {
String name = setter.value();
if (name.length() == 0) name = ModelUtil.stripSetter(method.getName());
grabAnnotations(logger, models, fieldMap, method, annos, type);
continue;
}
if (method.getAnnotation(DeleterFor.class) != null) {
implementAction(logger, generator, method, models, annos);
continue;
}
// No annotation. We have to guess the type.
boolean isVoid = method.getReturnType().isPrimitive() == JPrimitiveType.VOID;
boolean isGetter =
methodName.startsWith("get")
|| methodName.startsWith("is")
|| methodName.startsWith("has");
boolean isSetter, isAction;
if (isGetter) {
assert !isVoid
: "Cannot have a void return type with method name "
+ methodName
+ "; getter prefixes get(), is() and has() must return a type.";
isSetter = false;
isAction = false;
} else {
isSetter =
methodName.startsWith("set")
|| methodName.startsWith("add")
|| methodName.startsWith("put")
|| methodName.startsWith("rem")
|| methodName.startsWith("remove");
if (isSetter) {
isAction = false;
} else {
isAction = true;
}
}
if (isVoid) {
// definitely a setter / action method.
if (isSetter) {
MethodBuffer mb = generator.createMethod(returnType, methodName, params);
implementSetter(logger, mb, method, models, fieldMap, annos);
} else if (isAction) {
implementAction(logger, generator, method, models, annos);
} else {
MethodBuffer mb = generator.createMethod(returnType, methodName, params);
implementException(logger, mb, method);
}
} else {
if (isGetter) {
String name = ModelUtil.stripGetter(method.getName());
ModelField field = fieldMap.getOrMakeField(name);
field.setType(returnType);
field.addGetter(returns, methodName);
grabAnnotations(logger, models, fieldMap, method, annos, type);
} else if (isSetter) {
MethodBuffer mb = generator.createMethod(returnType, methodName, params);
implementSetter(logger, mb, method, models, fieldMap, annos);
} else if (isAction) {
implementAction(logger, generator, method, models, annos);
} else {
MethodBuffer mb = generator.createMethod(returnType, methodName, params);
implementException(logger, mb, method);
}
}
}
generator.generateModel(
X_Source.toType(builder.getPackage(), builder.getClassBuffer().getSimpleName()), fieldMap);
}
private RequestQueueModel collectModel(
TreeLogger logger, GeneratorContext context, JClassType toGenerate)
throws UnableToCompleteException {
RequestQueueModel.Builder rqBuilder = new RequestQueueModel.Builder();
TypeOracle typeOracle = context.getTypeOracle();
JClassType requestQueue = typeOracle.findType(RequestQueue.class.getName());
JClassType asyncCallback = typeOracle.findType(AsyncCallback.class.getName());
JClassType voidType = typeOracle.findType(Void.class.getName());
rqBuilder.setRequestQueueInterfaceName(toGenerate.getParameterizedQualifiedSourceName());
AsyncServiceModel.Builder serviceBuilder = new AsyncServiceModel.Builder();
for (JMethod m : toGenerate.getMethods()) {
TreeLogger serviceLogger =
logger.branch(Type.DEBUG, "Reading async service " + m.getReadableDeclaration());
// Skip those defined at RequestQueue
if (m.getEnclosingType().equals(requestQueue)) {
continue;
}
JClassType returnType = m.getReturnType().isClassOrInterface();
if (returnType == null) {
serviceLogger.log(Type.ERROR, "Unexpected method return type " + returnType);
throw new UnableToCompleteException();
}
serviceBuilder.setAsyncServiceInterfaceName(returnType.getParameterizedQualifiedSourceName());
serviceBuilder.setDeclaredMethodName(m.getName());
Service serviceAnnotation = m.getAnnotation(Service.class);
if (serviceAnnotation == null) {
serviceLogger.log(Type.ERROR, "Missing @Service annotation");
throw new UnableToCompleteException();
}
serviceBuilder.setService(serviceAnnotation.value().getName());
AsyncServiceMethodModel.Builder methodBuilder = new AsyncServiceMethodModel.Builder();
for (JMethod asyncMethod : m.getReturnType().isClassOrInterface().getMethods()) {
TreeLogger methodLogger =
serviceLogger.branch(
Type.DEBUG, "Reading service method " + asyncMethod.getReadableDeclaration());
List<JType> types = new ArrayList<JType>();
methodBuilder.setReturnTypeName(voidType.getParameterizedQualifiedSourceName());
boolean asyncFound = false;
for (JType param : asyncMethod.getParameterTypes()) {
if (asyncFound) {
methodLogger.log(
Type.WARN, "Already passed an AsyncCallback param - is that what you meant?");
}
if (param.isClassOrInterface() != null
&& param.isClassOrInterface().isAssignableTo(asyncCallback)) {
JClassType boxedReturnType =
ModelUtils.findParameterizationOf(asyncCallback, param.isClassOrInterface())[0];
methodBuilder
.setHasCallback(true)
.setReturnTypeName(boxedReturnType.getParameterizedQualifiedSourceName());
asyncFound = true;
continue; // should be last, check for this...
}
types.add(param);
}
Set<JClassType> throwables = new HashSet<JClassType>();
Throws t = asyncMethod.getAnnotation(Throws.class);
if (t != null) {
for (Class<? extends Throwable> throwable : t.value()) {
throwables.add(typeOracle.findType(throwable.getName()));
}
}
methodBuilder
.setMethodName(asyncMethod.getName())
.setArgTypes(types)
.setThrowables(throwables);
serviceBuilder.addMethod(methodBuilder.build());
}
rqBuilder.addService(serviceBuilder.build());
}
return rqBuilder.build();
}
