/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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.ofbiz.entity.sql;
import java.util.List;
import java.util.Map;
import javolution.util.FastList;
import org.ofbiz.entity.condition.EntityCondition;
import org.ofbiz.entity.condition.EntityFieldValue;
import org.ofbiz.entity.condition.EntityOperator;
import org.ofbiz.sql.BooleanCondition;
import org.ofbiz.sql.Condition;
import org.ofbiz.sql.ConditionList;
import org.ofbiz.sql.ConditionPlanner;
import org.ofbiz.sql.FieldValue;
import org.ofbiz.sql.Joiner;
import org.ofbiz.sql.NumberValue;
import org.ofbiz.sql.ParameterValue;
import org.ofbiz.sql.ParameterizedConditionException;
import org.ofbiz.sql.StringValue;
import org.ofbiz.sql.Value;
public class EntityConditionPlanner implements ConditionPlanner<EntityCondition> {
public EntityCondition parse(Condition condition, Map<String, ? extends Object> params) throws ParameterizedConditionException {
if (condition == null) return null;
if (condition instanceof BooleanCondition) {
BooleanCondition bc = (BooleanCondition) condition;
return EntityCondition.makeCondition(buildFieldValue(bc.getLeft()), EntityOperator.lookupComparison(bc.getOp()), buildValue(bc.getRight(), params));
} else if (condition instanceof ConditionList) {
ConditionList cl = (ConditionList) condition;
List<EntityCondition> conditions = FastList.newInstance();
for (Condition subCondition: cl) {
conditions.add(parse(subCondition, params));
}
return EntityCondition.makeCondition(conditions, cl.getJoiner() == Joiner.AND ? EntityOperator.AND : EntityOperator.OR);
} else {
throw new UnsupportedOperationException(condition.toString());
}
}
private static EntityFieldValue buildFieldValue(Value value) {
if (value instanceof FieldValue) {
FieldValue fv = (FieldValue) value;
return EntityFieldValue.makeFieldValue(fv.getFieldName(), fv.getTableName(), null, null);
}
throw new UnsupportedOperationException(value.toString());
}
private static Object buildValue(Object value, Map<String, ? extends Object> params) throws ParameterizedConditionException {
if (value instanceof NumberValue<?>) {
return ((NumberValue<?>) value).getNumber();
} else if (value instanceof StringValue) {
return ((StringValue) value).getString();
} else if (value instanceof FieldValue) {
FieldValue fv = (FieldValue) value;
return EntityFieldValue.makeFieldValue(fv.getFieldName(), fv.getTableName(), null, null);
} else if (value instanceof List<?>) {
List<Object> values = FastList.newInstance();
for (Object sqlValue: (List<?>) value) {
values.add(buildValue(sqlValue, params));
}
return values;
} else if (value == Value.NULL) {
return null;
} else if (value instanceof ParameterValue) {
if (params == null) {
throw new ParameterizedConditionException();
}
return params.get(((ParameterValue) value).getName());
}
throw new UnsupportedOperationException(value.getClass().getName() + ":" + value.toString());
}
}