| /* |
| * 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.oodt.cas.product.rdf; |
| |
| //OODT imports |
| import org.apache.oodt.cas.filemgr.structs.ProductType; |
| import org.apache.oodt.cas.metadata.Metadata; |
| |
| //JDK imports |
| import java.util.Properties; |
| |
| /** |
| * |
| * Filters a {@link ProductType}, based on a set of constraints. |
| * |
| * @author mattmann |
| * @version $Revision$ |
| * |
| */ |
| public class ProductTypeFilter { |
| |
| private Properties constraints; |
| |
| public ProductTypeFilter() { |
| this(null); |
| } |
| |
| public ProductTypeFilter(String filter) { |
| this.constraints = new Properties(); |
| if (filter != null) |
| this.parse(filter); |
| } |
| |
| public void parse(String filter) { |
| if(filter == null) return; |
| String[] attrConstrs = filter.split(","); |
| for (String attrConstr : attrConstrs) { |
| String[] attrConstPair = attrConstr.split("\\:"); |
| this.constraints.put(attrConstPair[0], attrConstPair[1]); |
| } |
| } |
| |
| public boolean filter(ProductType type) { |
| if(this.constraints == null) return true; |
| if (type.getTypeMetadata() != null) { |
| Metadata typeMet = type.getTypeMetadata(); |
| for (Object constraintObj : this.constraints.keySet()) { |
| String constraintName = (String) constraintObj; |
| String constraintValue = this.constraints.getProperty(constraintName); |
| if (!typeMet.containsKey(constraintName)) { |
| return false; |
| } |
| |
| if (!typeMet.getMetadata(constraintName).equals(constraintValue)) { |
| return false; |
| } |
| |
| } |
| |
| return true; |
| } else { |
| return false; |
| } |
| |
| } |
| } |