JMethod asyncMethod) {
w.println();
// Write the method signature
JType asyncReturnType = asyncMethod.getReturnType().getErasedType();
w.print("public ");
w.print(asyncReturnType.getQualifiedSourceName());
w.print(" ");
w.print(asyncMethod.getName() + "(");
boolean needsComma = false;
NameFactory nameFactory = new NameFactory();
JParameter[] asyncParams = asyncMethod.getParameters();
for (int i = 0; i < asyncParams.length; ++i) {
JParameter param = asyncParams[i];
if (needsComma) {
w.print(", ");
} else {
needsComma = true;
}
/*
* Ignoring the AsyncCallback parameter, if any method requires a call to
* SerializationStreamWriter.writeObject we need a try catch block
*/
JType paramType = param.getType();
paramType = paramType.getErasedType();
w.print(paramType.getQualifiedSourceName());
w.print(" ");
String paramName = param.getName();
nameFactory.addName(paramName);
w.print(paramName);
}
w.println(") {");
w.indent();
String requestIdName = nameFactory.createName("requestId");
w.println("int " + requestIdName + " = getNextRequestId();");
String statsMethodExpr = getProxySimpleName() + "." + syncMethod.getName();
String tossName = nameFactory.createName("toss");
w.println("boolean " + tossName + " = isStatsAvailable() && stats("
+ "timeStat(\"" + statsMethodExpr + "\", " + requestIdName
+ ", \"begin\"));");
w.print(SerializationStreamWriter.class.getSimpleName());
w.print(" ");
String streamWriterName = nameFactory.createName("streamWriter");
w.println(streamWriterName + " = createStreamWriter();");
w.println("// createStreamWriter() prepared the stream");
w.println("try {");
w.indent();
w.println(streamWriterName + ".writeString(REMOTE_SERVICE_INTERFACE_NAME);");
// Write the method name
w.println(streamWriterName + ".writeString(\"" + syncMethod.getName()
+ "\");");
// Write the parameter count followed by the parameter values
JParameter[] syncParams = syncMethod.getParameters();
w.println(streamWriterName + ".writeInt(" + syncParams.length + ");");
for (JParameter param : syncParams) {
JType paramType = param.getType().getErasedType();
String typeNameExpression = computeTypeNameExpression(paramType);
assert typeNameExpression != null : "Could not compute a type name for "
+ paramType.getQualifiedSourceName();
w.println(streamWriterName + ".writeString(" + typeNameExpression + ");");
}
// Encode all of the arguments to the asynchronous method, but exclude the
// last argument which is the callback instance.
//
for (int i = 0; i < asyncParams.length - 1; ++i) {
JParameter asyncParam = asyncParams[i];
w.print(streamWriterName + ".");
w.print(Shared.getStreamWriteMethodNameFor(asyncParam.getType()));
w.println("(" + asyncParam.getName() + ");");
}
String payloadName = nameFactory.createName("payload");
w.println("String " + payloadName + " = " + streamWriterName
+ ".toString();");
w.println(tossName + " = isStatsAvailable() && stats(" + "timeStat(\""
+ statsMethodExpr + "\", " + requestIdName
+ ", \"requestSerialized\"));");
/*
* Depending on the return type for the async method, return a
* RequestBuilder, a Request, or nothing at all.
*/
if (asyncReturnType == JPrimitiveType.VOID) {
w.print("doInvoke(");
} else if (asyncReturnType.getQualifiedSourceName().equals(
RequestBuilder.class.getName())) {
w.print("return doPrepareRequestBuilder(");
} else if (asyncReturnType.getQualifiedSourceName().equals(
Request.class.getName())) {
w.print("return doInvoke(");
} else {
// This method should have been caught by RemoteServiceAsyncValidator
throw new RuntimeException("Unhandled return type "
+ asyncReturnType.getQualifiedSourceName());
}
JParameter callbackParam = asyncParams[asyncParams.length - 1];
String callbackName = callbackParam.getName();
JType returnType = syncMethod.getReturnType();
w.print("ResponseReader." + getResponseReaderFor(returnType).name());
w.println(", \"" + getProxySimpleName() + "." + syncMethod.getName()
+ "\", " + requestIdName + ", " + payloadName + ", " + callbackName
+ ");");