/*
* Copyright 2011 JBoss, by Red Hat, 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.jboss.errai.bus.rebind;
import java.lang.reflect.Method;
import org.jboss.errai.codegen.framework.Statement;
import org.jboss.errai.codegen.framework.meta.MetaClassFactory;
import org.jboss.errai.codegen.framework.meta.MetaMethod;
import org.jboss.errai.codegen.framework.meta.MetaParameter;
import org.jboss.errai.codegen.framework.util.Stmt;
import org.mvel2.util.StringAppender;
public class RebindUtils {
public static String createCallSignature(MetaMethod m) {
StringAppender append = new StringAppender(m.getName()).append(':');
for (MetaParameter parm : m.getParameters()) {
append.append(parm.getType().getCanonicalName()).append(':');
}
return append.toString();
}
public static String createCallSignature(Method m) {
StringAppender append = new StringAppender(m.getName()).append(':');
for (Class c : m.getParameterTypes()) {
append.append(c.getCanonicalName()).append(':');
}
return append.toString();
}
public static boolean isMethodInInterface(Class iface, Method member) {
try {
if (iface.getMethod(member.getName(), member.getParameterTypes()) != null) return true;
}
catch (NoSuchMethodException e) {
}
return false;
}
public static Statement generateProxyMethodReturnStatement(MetaMethod method) {
Statement returnStatement = null;
if (!method.getReturnType().equals(MetaClassFactory.get(void.class))) {
// if it's a Number and not a BigDecimal or BigInteger
if (MetaClassFactory.get(Number.class).isAssignableFrom(method.getReturnType().asBoxed())
&& method.getReturnType().asUnboxed().getFullyQualifiedName().indexOf('.') == -1) {
if (MetaClassFactory.get(Double.class).isAssignableFrom(method.getReturnType().asBoxed())) {
returnStatement = Stmt.load(0.0).returnValue();
}
else if (MetaClassFactory.get(Float.class).isAssignableFrom(method.getReturnType().asBoxed())) {
returnStatement = Stmt.load(0f).returnValue();
}
else if (MetaClassFactory.get(Long.class).isAssignableFrom(method.getReturnType().asBoxed())) {
returnStatement = Stmt.load(0l).returnValue();
}
else {
returnStatement = Stmt.load(0).returnValue();
}
}
else if (MetaClassFactory.get(char.class).equals(method.getReturnType())) {
returnStatement = Stmt.load(0).returnValue();
}
else if (MetaClassFactory.get(Boolean.class).isAssignableFrom(method.getReturnType().asBoxed())) {
returnStatement = Stmt.load(false).returnValue();
}
else {
returnStatement = Stmt.load(null).returnValue();
}
}
return returnStatement;
}
}