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LogicalOperation.java
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LogicalOperation.java
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/*
* Copyright (c) 2010-2013 Evolveum
*
* 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 com.evolveum.midpoint.provisioning.ucf.query;
import java.util.ArrayList;
import java.util.List;
import org.identityconnectors.framework.common.objects.filter.Filter;
import org.identityconnectors.framework.common.objects.filter.FilterBuilder;
import com.evolveum.midpoint.prism.query.AndFilter;
import com.evolveum.midpoint.prism.query.NaryLogicalFilter;
import com.evolveum.midpoint.prism.query.NotFilter;
import com.evolveum.midpoint.prism.query.ObjectFilter;
import com.evolveum.midpoint.prism.query.OrFilter;
import com.evolveum.midpoint.provisioning.ucf.impl.IcfNameMapper;
import com.evolveum.midpoint.util.exception.SchemaException;
import com.evolveum.midpoint.util.logging.Trace;
import com.evolveum.midpoint.util.logging.TraceManager;
public class LogicalOperation extends Operation{
private static final Trace LOGGER = TraceManager.getTrace(LogicalOperation.class);
public LogicalOperation(FilterInterpreter interpreter) {
super(interpreter);
}
@Override
public <T> Filter interpret(ObjectFilter objectFilter, IcfNameMapper icfNameMapper) throws SchemaException{
if (objectFilter instanceof NotFilter){
NotFilter not = (NotFilter) objectFilter;
if (not.getFilter() == null){
LOGGER.debug("Not filter does not contain any condition. Skipping processing not filter.");
return null;
}
Filter f = getInterpreter().interpret(objectFilter, icfNameMapper);
return FilterBuilder.not(f);
} else {
NaryLogicalFilter nAry = (NaryLogicalFilter) objectFilter;
List<? extends ObjectFilter> conditions = nAry.getConditions();
if (conditions == null || conditions.isEmpty()){
LOGGER.debug("No conditions sepcified for logical filter. Skipping processing logical filter.");
return null;
}
if (conditions.size() < 2){
LOGGER.debug("Logical filter contains only one condition. Skipping processing logical filter and process simple operation of type {}.", conditions.get(0).getClass().getSimpleName());
return getInterpreter().interpret(conditions.get(0), icfNameMapper);
}
List<Filter> filters = new ArrayList<Filter>();
for (ObjectFilter objFilter : nAry.getConditions()){
Filter f = getInterpreter().interpret(objFilter, icfNameMapper);
filters.add(f);
}
Filter nAryFilter = null;
if (filters.size() >= 2) {
if (nAry instanceof AndFilter) {
nAryFilter = interpretAnd(filters.get(0), filters.subList(1, filters.size()));
} else if (nAry instanceof OrFilter) {
nAryFilter = interpretOr(filters.get(0), filters.subList(1, filters.size()));
}
}
return nAryFilter;
}
}
private Filter interpretAnd(Filter andF, List<Filter> filters){
if (filters.size() == 0){
return andF;
}
andF = FilterBuilder.and(andF, filters.get(0));
andF = interpretAnd(andF, filters.subList(1, filters.size()));
return andF;
}
private Filter interpretOr(Filter orF, List<Filter> filters){
if (filters.size() == 0){
return orF;
}
orF = FilterBuilder.and(orF, filters.get(0));
orF = interpretAnd(orF, filters.subList(1, filters.size()));
return orF;
}
}