/***
* Copyright (c) 2009 Caelum - www.caelum.com.br/opensource
* All rights reserved.
*
* 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 br.com.caelum.vraptor.core;
import javax.enterprise.context.RequestScoped;
import javax.enterprise.event.Observes;
import javax.enterprise.inject.Produces;
import javax.inject.Inject;
import br.com.caelum.vraptor.controller.ControllerMethod;
import br.com.caelum.vraptor.events.ControllerFound;
import br.com.caelum.vraptor.http.Parameter;
import br.com.caelum.vraptor.http.ParameterNameProvider;
import br.com.caelum.vraptor.http.ValuedParameter;
/**
* Holder for method being invoked and parameters being passed.
*
* @author Guilherme Silveira
* @author Fabio Kung
*/
@RequestScoped
public class MethodInfo {
private final ParameterNameProvider parameterNameProvider;
private ControllerMethod controllerMethod;
private ValuedParameter[] valuedParameters;
private Object result;
/**
* @deprecated CDI eyes only
*/
public MethodInfo() {
this(null);
}
@Inject
public MethodInfo(ParameterNameProvider parameterNameProvider) {
this.parameterNameProvider = parameterNameProvider;
}
@Produces
public ControllerMethod getControllerMethod() {
return controllerMethod;
}
public void observeController(@Observes ControllerFound event) {
setControllerMethod(event.getMethod());
}
public void setControllerMethod(ControllerMethod controllerMethod) {
this.controllerMethod = controllerMethod;
}
public ValuedParameter[] getValuedParameters() {
createValuedParameter(controllerMethod);
return valuedParameters;
}
public void setParameter(int index, Object value) {
getValuedParameters()[index].setValue(value);
}
public Object[] getParametersValues() {
Object[] out = new Object[getValuedParameters().length];
for (int i = 0; i < getValuedParameters().length; i++) {
out[i] = getValuedParameters()[i].getValue();
}
return out;
}
public Object getResult() {
return result;
}
public void setResult(Object result) {
this.result = result;
}
private void createValuedParameter(ControllerMethod controllerMethod) {
if (valuedParameters == null) {
valuedParameters = new ValuedParameter[controllerMethod.getArity()];
if (controllerMethod != null && controllerMethod.getMethod() != null) {
Parameter[] parameters = parameterNameProvider.parametersFor(controllerMethod.getMethod());
for (int i = 0; i < valuedParameters.length; i++) {
valuedParameters[i] = new ValuedParameter(parameters[i], null);
}
}
}
}
}