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/*
* Copyright 2003,2004 The Apache Software Foundation
*
* 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.mockito.cglib.beans;
import java.lang.reflect.Constructor;
import java.lang.reflect.Method;
import java.lang.reflect.Modifier;
import java.util.*;
import org.mockito.asm.ClassVisitor;
import org.mockito.asm.Type;
import org.mockito.cglib.core.*;
class BulkBeanEmitter extends ClassEmitter {
private static final Signature GET_PROPERTY_VALUES =
TypeUtils.parseSignature("void getPropertyValues(Object, Object[])");
private static final Signature SET_PROPERTY_VALUES =
TypeUtils.parseSignature("void setPropertyValues(Object, Object[])");
private static final Signature CSTRUCT_EXCEPTION =
TypeUtils.parseConstructor("Throwable, int");
private static final Type BULK_BEAN =
TypeUtils.parseType("org.mockito.cglib.beans.BulkBean");
private static final Type BULK_BEAN_EXCEPTION =
TypeUtils.parseType("org.mockito.cglib.beans.BulkBeanException");
public BulkBeanEmitter(ClassVisitor v,
String className,
Class target,
String[] getterNames,
String[] setterNames,
Class[] types) {
super(v);
Method[] getters = new Method[getterNames.length];
Method[] setters = new Method[setterNames.length];
validate(target, getterNames, setterNames, types, getters, setters);
begin_class(Constants.V1_2, Constants.ACC_PUBLIC, className, BULK_BEAN, null, Constants.SOURCE_FILE);
EmitUtils.null_constructor(this);
generateGet(target, getters);
generateSet(target, setters);
end_class();
}
private void generateGet(final Class target, final Method[] getters) {
CodeEmitter e = begin_method(Constants.ACC_PUBLIC, GET_PROPERTY_VALUES, null);
if (getters.length >= 0) {
e.load_arg(0);
e.checkcast(Type.getType(target));
Local bean = e.make_local();
e.store_local(bean);
for (int i = 0; i < getters.length; i++) {
if (getters[i] != null) {
MethodInfo getter = ReflectUtils.getMethodInfo(getters[i]);
e.load_arg(1);
e.push(i);
e.load_local(bean);
e.invoke(getter);
e.box(getter.getSignature().getReturnType());
e.aastore();
}
}
}
e.return_value();
e.end_method();
}
private void generateSet(final Class target, final Method[] setters) {
// setPropertyValues
CodeEmitter e = begin_method(Constants.ACC_PUBLIC, SET_PROPERTY_VALUES, null);
if (setters.length > 0) {
Local index = e.make_local(Type.INT_TYPE);
e.push(0);
e.store_local(index);
e.load_arg(0);
e.checkcast(Type.getType(target));
e.load_arg(1);
Block handler = e.begin_block();
int lastIndex = 0;
for (int i = 0; i < setters.length; i++) {
if (setters[i] != null) {
MethodInfo setter = ReflectUtils.getMethodInfo(setters[i]);
int diff = i - lastIndex;
if (diff > 0) {
e.iinc(index, diff);
lastIndex = i;
}
e.dup2();
e.aaload(i);
e.unbox(setter.getSignature().getArgumentTypes()[0]);
e.invoke(setter);
}
}
handler.end();
e.return_value();
e.catch_exception(handler, Constants.TYPE_THROWABLE);
e.new_instance(BULK_BEAN_EXCEPTION);
e.dup_x1();
e.swap();
e.load_local(index);
e.invoke_constructor(BULK_BEAN_EXCEPTION, CSTRUCT_EXCEPTION);
e.athrow();
} else {
e.return_value();
}
e.end_method();
}
private static void validate(Class target,
String[] getters,
String[] setters,
Class[] types,
Method[] getters_out,
Method[] setters_out) {
int i = -1;
if (setters.length != types.length || getters.length != types.length) {
throw new BulkBeanException("accessor array length must be equal type array length", i);
}
try {
for (i = 0; i < types.length; i++) {
if (getters[i] != null) {
Method method = ReflectUtils.findDeclaredMethod(target, getters[i], null);
if (method.getReturnType() != types[i]) {
throw new BulkBeanException("Specified type " + types[i] +
" does not match declared type " + method.getReturnType(), i);
}
if (Modifier.isPrivate(method.getModifiers())) {
throw new BulkBeanException("Property is private", i);
}
getters_out[i] = method;
}
if (setters[i] != null) {
Method method = ReflectUtils.findDeclaredMethod(target, setters[i], new Class[]{ types[i] });
if (Modifier.isPrivate(method.getModifiers()) ){
throw new BulkBeanException("Property is private", i);
}
setters_out[i] = method;
}
}
} catch (NoSuchMethodException e) {
throw new BulkBeanException("Cannot find specified property", i);
}
}
}
