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Jodd BeanUtil is fast and powerful bean manipulation library.
// Copyright (c) 2003-present, Jodd Team (http://jodd.org)
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
//
// 1. Redistributions of source code must retain the above copyright notice,
// this list of conditions and the following disclaimer.
//
// 2. Redistributions in binary form must reproduce the above copyright
// notice, this list of conditions and the following disclaimer in the
// documentation and/or other materials provided with the distribution.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
// POSSIBILITY OF SUCH DAMAGE.
package jodd.introspector;
import jodd.util.ClassUtil;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import java.lang.reflect.Type;
/**
* Method descriptor. Holds additional method data,
* that might be specific to implementation class.
*/
public class MethodDescriptor extends Descriptor implements Getter, Setter {
protected final Method method;
protected final Type returnType;
protected final Class rawReturnType;
protected final Class rawReturnComponentType;
protected final Class rawReturnKeyComponentType;
protected final Class[] rawParameterTypes;
protected final Class[] rawParameterComponentTypes;
public MethodDescriptor(final ClassDescriptor classDescriptor, final Method method) {
super(classDescriptor, ClassUtil.isPublic(method));
this.method = method;
this.returnType = method.getGenericReturnType();
this.rawReturnType = ClassUtil.getRawType(returnType, classDescriptor.getType());
Class[] componentTypes = ClassUtil.getComponentTypes(returnType, classDescriptor.getType());
if (componentTypes != null) {
this.rawReturnComponentType = componentTypes[componentTypes.length - 1];
this.rawReturnKeyComponentType = componentTypes[0];
} else {
this.rawReturnComponentType = null;
this.rawReturnKeyComponentType = null;
}
ClassUtil.forceAccess(method);
Type[] params = method.getGenericParameterTypes();
Type[] genericParams = method.getGenericParameterTypes();
rawParameterTypes = new Class[params.length];
rawParameterComponentTypes = genericParams.length == 0 ? null : new Class[params.length];
for (int i = 0; i < params.length; i++) {
Type type = params[i];
rawParameterTypes[i] = ClassUtil.getRawType(type, classDescriptor.getType());
if (rawParameterComponentTypes != null) {
rawParameterComponentTypes[i] = ClassUtil.getComponentType(genericParams[i], classDescriptor.getType(), -1);
}
}
}
/**
* Returns method name.
*/
@Override
public String getName() {
return method.getName();
}
/**
* Returns method.
*/
public Method getMethod() {
return method;
}
/**
* Returns raw return type.
*/
public Class getRawReturnType() {
return rawReturnType;
}
/**
* Returns raw component type of return type.
* May be null
if return type does not have
* components.
*/
public Class getRawReturnComponentType() {
return rawReturnComponentType;
}
/**
* Returns raw component type of return type.
* May be null
if return type does not have
* components.
*/
public Class getRawReturnKeyComponentType() {
return rawReturnKeyComponentType;
}
/**
* Resolves raw return component types
* This value is NOT cached.
*/
public Class[] resolveRawReturnComponentTypes() {
return ClassUtil.getComponentTypes(returnType, classDescriptor.getType());
}
/**
* Returns raw parameter types.
*/
public Class[] getRawParameterTypes() {
return rawParameterTypes;
}
/**
* Returns raw parameter component types. Returns null
* if data does not exist.
*/
public Class[] getRawParameterComponentTypes() {
return rawParameterComponentTypes;
}
// ---------------------------------------------------------------- getter/setter
@Override
public Object invokeGetter(final Object target) throws InvocationTargetException, IllegalAccessException {
return method.invoke(target, null);
}
@Override
public Class getGetterRawType() {
return getRawReturnType();
}
@Override
public Class getGetterRawComponentType() {
return getRawReturnComponentType();
}
@Override
public Class getGetterRawKeyComponentType() {
return getRawReturnKeyComponentType();
}
@Override
public void invokeSetter(final Object target, final Object argument) throws IllegalAccessException, InvocationTargetException {
method.invoke(target, argument);
}
@Override
public Class getSetterRawType() {
return getRawParameterTypes()[0];
}
@Override
public Class getSetterRawComponentType() {
Class[] ts = getRawParameterComponentTypes();
if (ts == null) {
return null;
}
return ts[0];
}
// ---------------------------------------------------------------- toString
@Override
public String toString() {
return classDescriptor.getType().getSimpleName() + '#' + method.getName() + "()";
}
}