/*
* Copyright 2010 JBoss Inc
*
* 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.drools.core.xml.jaxb.util;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import javax.xml.bind.annotation.adapters.XmlAdapter;
import org.kie.api.runtime.rule.FactHandle;
import org.drools.core.QueryResultsImpl;
import org.drools.core.common.InternalFactHandle;
import org.drools.core.runtime.rule.impl.FlatQueryResults;
public class JaxbUnknownAdapter extends XmlAdapter<Object, Object> {
@Override
public Object marshal(Object o) throws Exception {
if ( o instanceof List ) {
List v = ( List ) o;
return new JaxbListWrapper( v.toArray( new Object[v.size()]) );
} else if ( o instanceof Map ){
Map<Object, Object> value = ( Map<Object, Object> ) o;
if (value == null || value.isEmpty()) {
return new JaxbStringObjectPair[0];
}
List<JaxbObjectObjectPair> ret = new ArrayList<JaxbObjectObjectPair>(value.size());
for (Map.Entry<Object, Object> entry : value.entrySet()) {
Object obj = entry.getValue();
Class<? extends Object> vClass = obj.getClass();
if ( obj instanceof QueryResultsImpl) {
obj = new FlatQueryResults( (QueryResultsImpl)obj );
} else if (obj instanceof FactHandle ) {
obj = ((InternalFactHandle)obj).toExternalForm();
} else if (List.class.isAssignableFrom(vClass) && !JaxbListWrapper.class.equals(vClass)) {
obj = new JaxbListWrapper( ((List<?>) obj).toArray( new Object[((List<?>) obj).size()]) );;
}
ret.add(new JaxbObjectObjectPair((String)entry.getKey(), obj));
}
return ret.toArray(new JaxbObjectObjectPair[value.size()]);
} else {
return o;
}
}
@Override
public Object unmarshal(Object o) throws Exception {
if ( o instanceof JaxbListWrapper ) {
JaxbListWrapper v = ( JaxbListWrapper ) o;
return Arrays.asList( v.getElements() );
} else if (o instanceof JaxbObjectObjectPair[] ) {
JaxbObjectObjectPair[] value = ( JaxbObjectObjectPair[] ) o;
Map<Object, Object> r = new HashMap<Object, Object>();
for( JaxbObjectObjectPair p : value ) {
if ( p.getValue() instanceof JaxbListWrapper) {
r.put(p.getKey(), Arrays.asList( ((JaxbListWrapper)p.getValue()).getElements() ) );
} else {
r.put(p.getKey(), p.getValue());
}
}
return r;
} else {
return o;
}
}
}