/**
* Copyright 2010 JBoss Inc
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.drools.guvnor.gwtutil;
/*
* Copyright 2005 JBoss Inc
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
import java.lang.reflect.Method;
import org.drools.guvnor.client.rpc.RepositoryService;
/**
* This utility uses reflection to generate the async interface from the
* Service interface as per GWT standard.
*
* @author Michael Neale
*/
public class AsyncInterfaceGenerator {
public static void main(String[] args) throws Exception {
Class cls = RepositoryService.class;
String line = "";
Method[] methods = cls.getMethods();
for ( int i = 0; i < methods.length; i++ ) {
Method meth = methods[i];
if (meth.getDeclaringClass() == cls) {
line += "public void " + meth.getName() + "(";
Class params[] = meth.getParameterTypes();
for ( int j = 0; j < params.length; j++ ) {
String type = arrayIfy(params[j].getName());
if (type.startsWith("[L")) {
type = type.replace("[L", "").replace(";", "[]");
}
line += type;
line += " p" + j;
if (j < params.length -1) {
line += ", ";
}
}
String retType = arrayIfy(meth.getReturnType().getName());
if (retType.equals("void") || retType.startsWith("java.util")) {
if (line.endsWith( "(" )) {
line += "AsyncCallback cb";
} else {
line += ", AsyncCallback cb";
}
} else {
if (line.endsWith( "(" )) {
line += "AsyncCallback<" + retType +"> cb";
} else {
line += ", AsyncCallback<" + retType +"> cb";
}
}
line += ");\n";
}
}
System.out.println("/** PLACE THE FOLLOWING IN RepositoryServiceAsync.java **/\n");
System.out.println("/** Generated by AsyncInterfaceGenerator hackery */");
System.out.println(line);
}
public static String arrayIfy(String type) {
if (type.startsWith("[L")) {
type = type.replace("[L", "").replace(";", "[]");
}
return type;
}
}