/* Copyright 2009 Tonny Kohar.
*
* 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.qi4j.tools.model.util;
import java.lang.reflect.Method;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import org.qi4j.api.association.Association;
import org.qi4j.api.association.ManyAssociation;
import org.qi4j.api.association.NamedAssociation;
import org.qi4j.api.composite.CompositeDescriptor;
import org.qi4j.api.property.Property;
import org.qi4j.tools.model.descriptor.CompositeDetailDescriptor;
import org.qi4j.tools.model.descriptor.CompositeMethodDetailDescriptor;
public class MethodFinder
{
public List<CompositeMethodDetailDescriptor> findMethod( CompositeDetailDescriptor<?> descriptor )
{
return findMethod( descriptor.methods() );
}
/**
* The Methods tab should show all the methods of all Mixins (private and public separated)
* that don't return one of Property, Association or ManyAssociation.
*
* "private" and "public" refers to if the interface they are declared in is extended by the Composite.
* If yes, then it is a public method, meaning, clients can call it.
* If no, then it is a private mixin type, and can only be used internally through @This injections.
*/
private List<CompositeMethodDetailDescriptor> findMethod( Iterable<CompositeMethodDetailDescriptor> iter )
{
List<CompositeMethodDetailDescriptor> publicList = new ArrayList<>();
List<CompositeMethodDetailDescriptor> privateList = new ArrayList<>();
for( CompositeMethodDetailDescriptor descriptor : iter )
{
CompositeDescriptor compositeDescriptor = descriptor.composite().descriptor();
Iterable<Class<?>> compositeType = compositeDescriptor.types();
Class<?> mixinMethodClass = descriptor.descriptor().method().getDeclaringClass();
for( Class<?> compositeClass : compositeType )
{
if( mixinMethodClass.isAssignableFrom( compositeClass ) )
{
publicList.add( descriptor );
}
else
{
privateList.add( descriptor );
}
}
}
// combine into one list, with public listed first then private
publicList.addAll( privateList );
// filter Property, Association, ManyAssociation and NamedAssociation
doFilter( publicList );
return publicList;
}
/**
* Do the filter for method return type (Property, Association, ManyAssociation, NamedAssociation)
* by removing the entry from the list.
*
* @param list list of CompositeMethodDetailDescriptor
*/
private void doFilter( List<CompositeMethodDetailDescriptor> list )
{
if( list.isEmpty() )
{
return;
}
Iterator<CompositeMethodDetailDescriptor> iter = list.iterator();
while( iter.hasNext() )
{
CompositeMethodDetailDescriptor descriptor = iter.next();
Method method = descriptor.descriptor().method();
if( Property.class.isAssignableFrom( method.getReturnType() ) )
{
iter.remove();
}
else if( Association.class.isAssignableFrom( method.getReturnType() ) )
{
iter.remove();
}
else if( ManyAssociation.class.isAssignableFrom( method.getReturnType() ) )
{
iter.remove();
}
else if( NamedAssociation.class.isAssignableFrom( method.getReturnType() ) )
{
iter.remove();
}
}
}
}