| /* |
| * 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.LinkedList; |
| import java.util.List; |
| import java.util.Map; |
| |
| 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 = new LinkedList<EntityCondition>(); |
| 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 = new LinkedList<Object>(); |
| 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()); |
| } |
| } |