/*
* Copyright 2013 cruxframework.org.
*
* 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.cruxframework.crux.core.rebind.rest;
import java.lang.annotation.Annotation;
import org.cruxframework.crux.core.client.utils.StringUtils;
import org.cruxframework.crux.core.rebind.AbstractProxyCreator.SourcePrinter;
import org.cruxframework.crux.core.shared.rest.annotation.PathParam;
import org.cruxframework.crux.core.shared.rest.annotation.QueryParam;
import org.cruxframework.crux.core.utils.JClassUtils;
import org.cruxframework.crux.core.utils.JClassUtils.PropertyInfo;
import com.google.gwt.core.ext.GeneratorContext;
import com.google.gwt.core.ext.typeinfo.JMethod;
import com.google.gwt.core.ext.typeinfo.JParameter;
import com.google.gwt.core.ext.typeinfo.JType;
/**
* @author Thiago da Rosa de Bustamante
*
*/
class QueryParameterHandler extends AbstractParameterHelper
{
public QueryParameterHandler(GeneratorContext context)
{
super(context);
}
public String getQueryString(JMethod method, Annotation[][] parameterAnnotations)
{
StringBuilder str = new StringBuilder();
boolean first = true;
JParameter[] parameters = method.getParameters();
for (int i = 0; i< parameterAnnotations.length; i++)
{
Annotation[] annotations = parameterAnnotations[i];
for (Annotation annotation : annotations)
{
if (annotation instanceof QueryParam)
{
if (!first)
{
str.append("&");
}
first = false;
if (JClassUtils.isSimpleType(parameters[i].getType()))
{
buildQueryStringForSimpleType(str, ((QueryParam)annotation).value());
}
else
{
buildQueryStringForComplexType(str, parameters[i].getType(), ((QueryParam)annotation).value());
}
}
}
}
return str.toString();
}
public void generateMethodParamToURICode(SourcePrinter srcWriter, RestMethodInfo methodInfo, String parameterStringVariable)
{
JParameter[] parameters = methodInfo.method.getParameters();
for (int i = 0; i< methodInfo.parameterAnnotations.length; i++)
{
Annotation[] annotations = methodInfo.parameterAnnotations[i];
for (Annotation annotation : annotations)
{
if ((annotation instanceof QueryParam) || (annotation instanceof PathParam))
{
JParameter parameter = parameters[i];
JType parameterType = parameter.getType();
String parameterName = getParameterName(annotation);
String parameterExpression = parameter.getName();
if (JClassUtils.isSimpleType(parameterType))
{
generateMethodParamToCodeForSimpleType(srcWriter, parameterStringVariable, parameterType, parameterName,
parameterExpression, (parameterType.isPrimitive() != null?"true":parameterExpression+"!=null"),
annotation);
}
else
{
generateMethodParamToCodeForComplexType(srcWriter, parameterStringVariable, parameterType,
parameterName, parameterExpression, parameterExpression+"!=null", annotation);
}
}
}
}
}
private String getParameterName(Annotation annotation)
{
if (annotation instanceof QueryParam)
{
return ((QueryParam)annotation).value();
}
else if (annotation instanceof PathParam)
{
return ((PathParam)annotation).value();
}
return null;
}
private void buildQueryStringForComplexType(StringBuilder str, JType parameterType, String value)
{
PropertyInfo[] propertiesInfo = JClassUtils.extractBeanPropertiesInfo(parameterType.isClassOrInterface());
boolean first = true;
for (PropertyInfo propertyInfo : propertiesInfo)
{
if (!first)
{
str.append("&");
}
first = false;
String parameterName = (StringUtils.isEmpty(value)?propertyInfo.getName():value+"."+propertyInfo.getName());
if (JClassUtils.isSimpleType(propertyInfo.getType()))
{
buildQueryStringForSimpleType(str, parameterName);
}
else
{
buildQueryStringForComplexType(str, propertyInfo.getType(), parameterName);
}
}
}
private void buildQueryStringForSimpleType(StringBuilder str, String parameterName)
{
str.append(parameterName+"={"+parameterName+"}");
}
}