protected void generateProxyMethods(
SourceWriter w,
SerializableTypeOracle serializableTypeOracle,
TypeOracle typeOracle,
Map<JMethod, JMethod> syncMethToAsyncMethMap) {
JMethod[] syncMethods = serviceIntf.getOverridableMethods();
for (JMethod syncMethod : syncMethods) {
JMethod asyncMethod = syncMethToAsyncMethMap.get(syncMethod);
assert (asyncMethod != null);
JClassType enclosingType = syncMethod.getEnclosingType();
JParameterizedType isParameterizedType = enclosingType.isParameterized();
if (isParameterizedType != null) {
JMethod[] methods = isParameterizedType.getMethods();
for (int i = 0; i < methods.length; ++i) {
if (methods[i] == syncMethod) {
/*
* Use the generic version of the method to ensure that the server
* can find the method using the erasure of the generic signature.
*/
syncMethod = isParameterizedType.getBaseType().getMethods()[i];
}
}
}
generateProxyMethod(w, serializableTypeOracle, typeOracle, syncMethod, asyncMethod);
}
}
private static void genericTypeToObject(JClassType type, StringBuilder sb) {
sb.append("{\\\"name\\\":\\\"").append(type.getQualifiedSourceName() + "\\\"");
sb.append(", \\\"types\\\":");
if (type.isParameterized() != null) {
sb.append("[");
JClassType[] inTypes = type.isParameterized().getTypeArgs();
for (int i = 0; i < inTypes.length; i++) {
genericTypeToObject(inTypes[i], sb);
if (i < inTypes.length - 1) {
sb.append(", ");
}
}
sb.append("]");
} else {
sb.append("null");
}
sb.append("}");
}
private boolean isQueryParamListType(JClassType type) {
if (type.isParameterized() == null) {
return false;
}
for (JClassType listType : QUERY_PARAM_LIST_TYPES) {
if (type.isAssignableTo(listType)) {
return true;
}
}
return false;
}
private void emitBody(SourceWriter w) throws NotFoundException {
JClassType baseClass =
context_.getTypeOracle().getType("org.rstudio.core.client.js.JsObjectInjector");
JClassType c = baseType_.asParameterizationOf(baseClass.isGenericType());
JType typeToInject = c.isParameterized().getTypeArgs()[0];
w.print("public native final void injectObject(");
w.print(typeToInject.getQualifiedSourceName());
w.println(" value) /*-{");
w.indent();
w.println(baseExpression_ + " = {");
w.indent();
JMethod[] methods = typeToInject.isClassOrInterface().getMethods();
for (int i = 0; i < methods.length; i++) {
JMethod method = methods[i];
final JParameter[] jParameters = method.getParameters();
StringBuilder argString = new StringBuilder();
for (int j = 0; j < jParameters.length; j++) {
argString.append("_").append(j);
if (j < jParameters.length - 1) argString.append(", ");
}
w.println(method.getName() + ": function(" + argString + ") {");
w.indent();
if (!method.getReturnType().getQualifiedSourceName().equals("void")) w.print("return ");
w.print("value.@");
w.print(typeToInject.getQualifiedSourceName());
w.print("::");
w.print(method.getName());
w.print("(");
for (JParameter param : jParameters) w.print(param.getType().getJNISignature());
w.print(")(");
w.print(argString.toString());
w.println(");");
w.outdent();
w.print("}");
w.println((i < methods.length - 1) ? "," : "");
}
w.outdent();
w.println("};");
w.outdent();
w.println("}-*/;");
}
public JParameterizedType asParameterizationOf(JGenericType type) {
Set<JClassType> supertypes = getFlattenedSuperTypeHierarchy(this);
for (JClassType supertype : supertypes) {
JParameterizedType isParameterized = supertype.isParameterized();
if (isParameterized != null && isParameterized.getBaseType() == type) {
return isParameterized;
}
JRawType isRaw = supertype.isRawType();
if (isRaw != null && isRaw.getBaseType() == type) {
return isRaw.asParameterizedByWildcards();
}
}
return null;
}
public String init(
TypeOracle oracle,
JField targetWidgetField,
JType targetType,
JField targetEntityMember,
JField targetEntityField,
String variable,
List<JField> fields) {
JClassType widgetCollectionType = targetWidgetField.getType().isClassOrInterface();
JClassType entityCollectionType = targetEntityMember.getType().isClassOrInterface();
JParameterizedType paramaterizedType = widgetCollectionType.isParameterized();
if (paramaterizedType == null) {
throw new RuntimeException(
"cannot generateGetField mappers for collection of widgets (the collection is not properly parameterized: eg. List<Widget>)");
}
JClassType widgetType = paramaterizedType.getTypeArgs()[0];
varName =
targetEntityField.getType().isClassOrInterface().getName()
+ targetWidgetField.getName()
+ "Mapper";
if (compiledTemplate == null) {
InputStream istream = this.getClass().getResourceAsStream("CollectionFMGenerator.mv");
compiledTemplate = TemplateCompiler.compileTemplate(istream, null);
}
Map vars = new HashMap();
vars.put("typeOracle", oracle);
vars.put("targetWidgetField", targetWidgetField);
vars.put("targetEntityField", targetEntityField);
vars.put("targetEntityMember", targetEntityMember);
vars.put("widgetType", widgetType);
vars.put("entityCollectionType", entityCollectionType);
vars.put("widgetCollectionType", widgetCollectionType);
vars.put("varName", varName);
return String.valueOf(TemplateRuntime.execute(compiledTemplate, vars));
}
/** Examines a type to see if it can be transported. */
private boolean validateTransportableType(
RequestMethod.Builder methodBuilder, JType type, boolean requireObject)
throws UnableToCompleteException {
JClassType transportedClass = type.isClassOrInterface();
if (transportedClass == null) {
if (requireObject) {
poison(
"The type %s cannot be transported by RequestFactory as" + " a return type",
type.getQualifiedSourceName());
return false;
} else {
// Primitives always ok
return true;
}
}
if (ModelUtils.isValueType(oracle, transportedClass)
|| splittableType.equals(transportedClass)) {
// Simple values, like Integer and String
methodBuilder.setValueType(true);
} else if (entityProxyInterface.isAssignableFrom(transportedClass)
|| valueProxyInterface.isAssignableFrom(transportedClass)) {
// EntityProxy and ValueProxy return types
methodBuilder.setEntityType(getEntityProxyType(transportedClass));
} else if (collectionInterface.isAssignableFrom(transportedClass)) {
// Only allow certain collections for now
JParameterizedType parameterized = transportedClass.isParameterized();
if (parameterized == null) {
poison("Requests that return collections of List or Set must be parameterized");
return false;
}
if (listInterface.equals(parameterized.getBaseType())) {
methodBuilder.setCollectionType(CollectionType.LIST);
} else if (setInterface.equals(parameterized.getBaseType())) {
methodBuilder.setCollectionType(CollectionType.SET);
} else {
poison(
"Requests that return collections may be declared with" + " %s or %s only",
listInterface.getQualifiedSourceName(), setInterface.getQualifiedSourceName());
return false;
}
// Also record the element type in the method builder
JClassType elementType =
ModelUtils.findParameterizationOf(collectionInterface, transportedClass)[0];
methodBuilder.setCollectionElementType(elementType);
validateTransportableType(methodBuilder, elementType, requireObject);
} else if (mapInterface.isAssignableFrom(transportedClass)) {
JParameterizedType parameterized = transportedClass.isParameterized();
if (parameterized == null) {
poison("Requests that return Maps must be parameterized");
return false;
}
if (mapInterface.equals(parameterized.getBaseType())) {
methodBuilder.setCollectionType(CollectionType.MAP);
} else {
poison(
"Requests that return maps may be declared with" + " %s only",
mapInterface.getQualifiedSourceName());
return false;
}
// Also record the element type in the method builder
JClassType[] params = ModelUtils.findParameterizationOf(mapInterface, transportedClass);
JClassType keyType = params[0];
JClassType valueType = params[1];
methodBuilder.setMapKeyType(keyType);
methodBuilder.setMapValueType(valueType);
validateTransportableType(methodBuilder, keyType, requireObject);
validateTransportableType(methodBuilder, valueType, requireObject);
} else {
// Unknown type, fail
poison("Invalid Request parameterization %s", transportedClass.getQualifiedSourceName());
return false;
}
methodBuilder.setDataType(transportedClass);
return true;
}
