/*
* 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.BeanCopier;
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.client.GWT;
import com.google.gwt.core.ext.GeneratorContext;
import com.google.gwt.core.ext.TreeLogger;
import com.google.gwt.core.ext.typeinfo.JClassType;
/**
* @author Thiago da Rosa de Bustamante
*
*/
public class BeanCopierProxyCreator extends AbstractInterfaceWrapperProxyCreator
{
private JClassType aType;
private JClassType bType;
/**
*
* @param logger
* @param context
* @param baseIntf
*/
public BeanCopierProxyCreator(TreeLogger logger, GeneratorContext context, JClassType baseIntf)
{
super(logger, context, baseIntf, true);
JClassType beanCopierType = context.getTypeOracle().findType(BeanCopier.class.getCanonicalName());
JClassType[] parameterTypes = JClassUtils.getActualParameterTypes(baseIntf, beanCopierType);
aType = parameterTypes[0];
bType = parameterTypes[1];
if (JClassUtils.isSimpleType(aType) || JClassUtils.isSimpleType(bType))
{
throw new CruxGeneratorException("Can not create a BeanCopier for simple types.");
}
}
@Override
protected void generateProxyMethods(SourcePrinter srcWriter) throws CruxGeneratorException
{
srcWriter.println("public void copyTo("+aType.getParameterizedQualifiedSourceName()+" from, "+bType.getParameterizedQualifiedSourceName()+" to){");
generateCopyBeanCode(srcWriter, "from", "to", aType, bType);
srcWriter.println("}");
srcWriter.println("public void copyFrom("+bType.getParameterizedQualifiedSourceName()+" from, "+aType.getParameterizedQualifiedSourceName()+" to){");
generateCopyBeanCode(srcWriter, "from", "to", bType, aType);
srcWriter.println("}");
}
protected void generateCopyBeanCode(SourcePrinter srcWriter, String fromVariable, String toVariable, JClassType fromType, JClassType toType)
{
if (fromType != null && toType != null)
{
PropertyInfo[] fromPropertiesInfo = JClassUtils.extractBeanPropertiesInfo(fromType);
PropertyInfo[] toPropertiesInfo = JClassUtils.extractBeanPropertiesInfo(toType);
for (PropertyInfo fromPropertyInfo : fromPropertiesInfo)
{
PropertyInfo toPropertyInfo = getEquivalentPropertyInfo(fromPropertyInfo, toPropertiesInfo);
if (toPropertyInfo != null)
{
if (JClassUtils.isSimpleType(fromPropertyInfo.getType()))
{
if (fromPropertyInfo.getType().equals(toPropertyInfo.getType()))
{
srcWriter.println(toVariable+"."+toPropertyInfo.getWriteMethod().getName()+"("+fromVariable+"."+fromPropertyInfo.getReadMethod().getName()+"());");
}
else
{
throw new CruxGeneratorException("Can not create a BeanCopier. Incopatibles type for property ["+fromPropertyInfo.getName()+"].");
}
}
else
{
JClassType fromPropClass = fromPropertyInfo.getType().isClassOrInterface();
JClassType toPropClass = toPropertyInfo.getType().isClassOrInterface();
if (fromPropClass.isAssignableTo(toPropClass))
{
srcWriter.println(toVariable+"."+toPropertyInfo.getWriteMethod().getName()+"("+fromVariable+"."+fromPropertyInfo.getReadMethod().getName()+"());");
}
else
{
srcWriter.println("if ("+fromVariable+"."+fromPropertyInfo.getReadMethod().getName()+"() != null){");
srcWriter.println(toVariable+"."+toPropertyInfo.getWriteMethod().getName()+"(GWT.create("+toPropClass.getQualifiedSourceName()+".class));");
generateCopyBeanCode(srcWriter, fromVariable+"."+fromPropertyInfo.getReadMethod().getName()+"()",
toVariable+"."+toPropertyInfo.getReadMethod().getName()+"()",
fromPropertyInfo.getType().isClassOrInterface(),
toPropertyInfo.getType().isClassOrInterface());
srcWriter.println("}else{");
srcWriter.println(toVariable+"."+toPropertyInfo.getWriteMethod().getName()+"(null);");
srcWriter.println("}");
}
}
}
}
}
}
protected PropertyInfo getEquivalentPropertyInfo(PropertyInfo aPropertyInfo, PropertyInfo[] bPropertiesInfo)
{
for (PropertyInfo bPropertyInfo : bPropertiesInfo)
{
if (bPropertyInfo.getName().equals(aPropertyInfo.getName()))
{
return bPropertyInfo;
}
}
return null;
}
@Override
protected String[] getImports()
{
return new String[]{
GWT.class.getCanonicalName(),
aType.getParameterizedQualifiedSourceName(),
bType.getParameterizedQualifiedSourceName()
};
}
}