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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  org.drools.guvnor.client.rpc.RepositoryService;

This utility uses reflection to generate the async interface from the Service interface as per GWT standard.

Author(s):
Michael Neale
public class AsyncInterfaceGenerator {
    public static void main(String[] argsthrows Exception {
        Class cls = RepositoryService.class;
        String line = "";
        Method[] methods = cls.getMethods();
        for ( int i = 0; i < methods.lengthi++ ) {
            Method meth = methods[i];
            if (meth.getDeclaringClass() == cls) {
                line += "public void " + meth.getName() + "(";
                Class params[] = meth.getParameterTypes();
                for ( int j = 0; j < params.lengthj++ ) {
                    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";
            }
        }
        ..println("/** PLACE THE FOLLOWING IN RepositoryServiceAsync.java **/\n");
        ..println("/** Generated by AsyncInterfaceGenerator hackery */");
        ..println(line);
    }
    public static String arrayIfy(String type) {
        if (type.startsWith("[L")) {
        	type = type.replace("[L""").replace(";""[]");
        }
        return type;
    }
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