/*
* 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.bean;
import org.cruxframework.crux.core.client.bean.BeanComparator;
import org.cruxframework.crux.core.client.utils.ObjectUtils;
import org.cruxframework.crux.core.client.utils.StringUtils;
import org.cruxframework.crux.core.rebind.AbstractInterfaceWrapperProxyCreator;
import org.cruxframework.crux.core.rebind.CruxGeneratorException;
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.TreeLogger;
import com.google.gwt.core.ext.typeinfo.JClassType;
import com.google.gwt.core.ext.typeinfo.JEnumType;
import com.google.gwt.core.ext.typeinfo.JPrimitiveType;
/**
* @author Thiago da Rosa de Bustamante
*
*/
public class BeanComparatorProxyCreator extends AbstractInterfaceWrapperProxyCreator
{
private JClassType aType;
/**
*
* @param logger
* @param context
* @param baseIntf
*/
public BeanComparatorProxyCreator(TreeLogger logger, GeneratorContext context, JClassType baseIntf)
{
super(logger, context, baseIntf, true);
JClassType beanComparatorType = context.getTypeOracle().findType(BeanComparator.class.getCanonicalName());
JClassType[] parameterTypes = JClassUtils.getActualParameterTypes(baseIntf, beanComparatorType);
aType = parameterTypes[0];
if (JClassUtils.isSimpleType(aType))
{
throw new CruxGeneratorException("Can not create a BeanComparator for simple types.");
}
}
@Override
protected void generateProxyMethods(SourcePrinter srcWriter) throws CruxGeneratorException
{
srcWriter.println("public boolean equals("+aType.getParameterizedQualifiedSourceName()+" a1, "+aType.getParameterizedQualifiedSourceName()+" a2){");
generateCompareBeanCode(srcWriter, "a1", "a2", aType);
srcWriter.println("return true;");
srcWriter.println("}");
}
protected void generateCompareBeanCode(SourcePrinter srcWriter, String objVariable, String otherVariable, JClassType type)
{
if (type != null)
{
PropertyInfo[] propertiesInfo = JClassUtils.extractBeanPropertiesInfo(type);
if (propertiesInfo != null && propertiesInfo.length > 0)
{
for (PropertyInfo propertyInfo : propertiesInfo)
{
if (JClassUtils.isSimpleType(propertyInfo.getType()))
{
JPrimitiveType primitiveType = propertyInfo.getType().isPrimitive();
JEnumType enumType = propertyInfo.getType().isEnum();
JClassType classType = propertyInfo.getType().isClassOrInterface();
if (primitiveType != null || enumType != null)
{
srcWriter.println("if ("+objVariable+"."+propertyInfo.getReadMethod().getName()+"() != "+otherVariable+"."+propertyInfo.getReadMethod().getName()+"()){");
srcWriter.println("return false;");
srcWriter.println("}");
}
else if (classType.getQualifiedSourceName().equals(String.class.getCanonicalName()))
{
srcWriter.println("if (!StringUtils.equals("+objVariable+"."+propertyInfo.getReadMethod().getName()+"(), "+otherVariable+"."+propertyInfo.getReadMethod().getName()+"())){");
srcWriter.println("return false;");
srcWriter.println("}");
}
else
{
srcWriter.println("if (!ObjectUtils.isEqual("+objVariable+"."+propertyInfo.getReadMethod().getName()+"(), "+otherVariable+"."+propertyInfo.getReadMethod().getName()+"())){");
srcWriter.println("return false;");
srcWriter.println("}");
}
}
else
{
srcWriter.println("if ("+objVariable+"."+propertyInfo.getReadMethod().getName()+"() != null){");
srcWriter.println("if ("+otherVariable+"."+propertyInfo.getReadMethod().getName()+"() == null){");
srcWriter.println("return false;");
srcWriter.println("}");
generateCompareBeanCode(srcWriter, objVariable+"."+propertyInfo.getReadMethod().getName()+"()",
otherVariable+"."+propertyInfo.getReadMethod().getName()+"()",
propertyInfo.getType().isClassOrInterface());
srcWriter.println("}else if ("+otherVariable+"."+propertyInfo.getReadMethod().getName()+"() != null){");
srcWriter.println("return false;");
srcWriter.println("}");
}
}
}
else
{
srcWriter.println("if (!ObjectUtils.isEqual("+objVariable+","+otherVariable+")){");
srcWriter.println("return false;");
srcWriter.println("}");
}
}
}
@Override
protected String[] getImports()
{
return new String[]{
StringUtils.class.getCanonicalName(),
ObjectUtils.class.getCanonicalName(),
aType.getParameterizedQualifiedSourceName()
};
}
}