| /* |
| * 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.apache.ranger.common; |
| |
| import java.util.ArrayList; |
| import java.util.List; |
| |
| import javax.persistence.Query; |
| |
| public class SearchGroup { |
| public enum CONDITION { |
| AND, OR |
| } |
| |
| CONDITION condition = CONDITION.AND; |
| |
| List<SearchValue> values = new ArrayList<SearchValue>(); |
| List<SearchGroup> searchGroups = new ArrayList<SearchGroup>(); |
| |
| /** |
| * @param condition |
| */ |
| public SearchGroup(CONDITION condition) { |
| this.condition = condition; |
| } |
| |
| public String getWhereClause(String prefix) { |
| if (values == null || values.isEmpty() || searchGroups == null || searchGroups.isEmpty()) { |
| return ""; |
| } |
| |
| int count = -1; |
| int innerCount = 0; |
| StringBuilder whereClause = new StringBuilder("("); |
| for (SearchValue value : values) { |
| count++; |
| if (count > 0) { |
| if (CONDITION.AND.equals(condition)) { |
| whereClause.append(" AND "); |
| } else { |
| whereClause.append(" OR "); |
| } |
| } |
| SearchField searchField = value.getSearchField(); |
| if (value.isList()) { |
| whereClause.append(" ("); |
| int listCount = value.getValueList().size(); |
| for (int i = 0; i < listCount; i++) { |
| if (i > 0) { |
| whereClause.append(" OR "); |
| } |
| whereClause |
| .append(searchField.getFieldName()) |
| .append(" = :") |
| .append(searchField.getClientFieldName() + "_" |
| + prefix + "_" + count + "_" + innerCount); |
| innerCount++; |
| } |
| whereClause.append(") "); |
| } else { |
| whereClause |
| .append(searchField.getFieldName()) |
| .append(" = :") |
| .append(searchField.getClientFieldName() + "_" + prefix |
| + "_" + count); |
| } |
| } |
| |
| for (SearchGroup searchGroup : searchGroups) { |
| count++; |
| if (count > 0) { |
| if (CONDITION.AND.equals(condition)) { |
| whereClause.append(" AND "); |
| } else { |
| whereClause.append(" OR "); |
| } |
| } |
| whereClause.append(" ") |
| .append(searchGroup.getWhereClause(prefix + "_" + count)) |
| .append(" "); |
| } |
| whereClause.append(") "); |
| return whereClause.toString(); |
| } |
| |
| /** |
| * @param query |
| */ |
| public void resolveValues(Query query, String prefix) { |
| if ((values == null || values.isEmpty()) |
| || (searchGroups == null || searchGroups.isEmpty())) { |
| return; |
| } |
| |
| int count = -1; |
| int innerCount = 0; |
| for (SearchValue value : values) { |
| count++; |
| SearchField searchField = value.getSearchField(); |
| if (value.isList()) { |
| int listCount = value.getValueList().size(); |
| for (int i = 0; i < listCount; i++) { |
| String paramName = searchField.getClientFieldName() + "_" |
| + prefix + "_" + count + "_" + innerCount; |
| query.setParameter(paramName, value.getValueList().get(i)); |
| innerCount++; |
| } |
| } else { |
| String paramName = searchField.getClientFieldName() + "_" |
| + prefix + "_" + count; |
| query.setParameter(paramName, value.getValue()); |
| } |
| } |
| |
| for (SearchGroup searchGroup : searchGroups) { |
| count++; |
| searchGroup.resolveValues(query, prefix + "_" + count); |
| } |
| } |
| } |