| Classes in this File | Line Coverage | Branch Coverage | Complexity | ||||
| BeanPredicate |
|
| 2.3333333333333335;2.333 |
| 1 | /* | |
| 2 | * Licensed to the Apache Software Foundation (ASF) under one or more | |
| 3 | * contributor license agreements. See the NOTICE file distributed with | |
| 4 | * this work for additional information regarding copyright ownership. | |
| 5 | * The ASF licenses this file to You under the Apache License, Version 2.0 | |
| 6 | * (the "License"); you may not use this file except in compliance with | |
| 7 | * the License. You may obtain a copy of the License at | |
| 8 | * | |
| 9 | * http://www.apache.org/licenses/LICENSE-2.0 | |
| 10 | * | |
| 11 | * Unless required by applicable law or agreed to in writing, software | |
| 12 | * distributed under the License is distributed on an "AS IS" BASIS, | |
| 13 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | |
| 14 | * See the License for the specific language governing permissions and | |
| 15 | * limitations under the License. | |
| 16 | */ | |
| 17 | ||
| 18 | package org.apache.commons.beanutils; | |
| 19 | ||
| 20 | import org.apache.commons.collections.Predicate; | |
| 21 | import org.apache.commons.logging.Log; | |
| 22 | import org.apache.commons.logging.LogFactory; | |
| 23 | ||
| 24 | import java.lang.reflect.InvocationTargetException; | |
| 25 | ||
| 26 | /** | |
| 27 | * <p>Predicate implementation that applies the given <code>Predicate</code> | |
| 28 | * to the result of calling the given property getter. | |
| 29 | * </p> | |
| 30 | */ | |
| 31 | public class BeanPredicate implements Predicate { | |
| 32 | ||
| 33 | 4 | private final Log log = LogFactory.getLog(this.getClass()); |
| 34 | ||
| 35 | /** Name of the property whose value will be predicated */ | |
| 36 | private String propertyName; | |
| 37 | /** <code>Predicate</code> to be applied to the property value */ | |
| 38 | private Predicate predicate; | |
| 39 | ||
| 40 | /** | |
| 41 | * Constructs a <code>BeanPredicate</code> that applies the given | |
| 42 | * <code>Predicate</code> to the named property value. | |
| 43 | * @param propertyName the name of the property whose value is to be predicated, | |
| 44 | * not null | |
| 45 | * @param predicate the <code>Predicate</code> to be applied, | |
| 46 | * not null | |
| 47 | */ | |
| 48 | 4 | public BeanPredicate(String propertyName, Predicate predicate) { |
| 49 | 4 | this.propertyName = propertyName; |
| 50 | 4 | this.predicate = predicate; |
| 51 | 4 | } |
| 52 | ||
| 53 | /** | |
| 54 | * Evaluates the given object by applying the {@link #getPredicate()} | |
| 55 | * to a property value named by {@link #getPropertyName()}. | |
| 56 | * | |
| 57 | * @param object The object being evaluated | |
| 58 | * @return the result of the predicate evaluation | |
| 59 | * @throws IllegalArgumentException when the property cannot be evaluated | |
| 60 | */ | |
| 61 | public boolean evaluate(Object object) { | |
| 62 | ||
| 63 | 8 | boolean evaluation = false; |
| 64 | ||
| 65 | try { | |
| 66 | 8 | Object propValue = PropertyUtils.getProperty( object, propertyName ); |
| 67 | 8 | evaluation = predicate.evaluate(propValue); |
| 68 | 0 | } catch (IllegalArgumentException e) { |
| 69 | 0 | final String errorMsg = "Problem during evaluation."; |
| 70 | 0 | log.error("ERROR: " + errorMsg, e); |
| 71 | 0 | throw e; |
| 72 | 0 | } catch (IllegalAccessException e) { |
| 73 | 0 | final String errorMsg = "Unable to access the property provided."; |
| 74 | 0 | log.error(errorMsg, e); |
| 75 | 0 | throw new IllegalArgumentException(errorMsg); |
| 76 | 0 | } catch (InvocationTargetException e) { |
| 77 | 0 | final String errorMsg = "Exception occurred in property's getter"; |
| 78 | 0 | log.error(errorMsg, e); |
| 79 | 0 | throw new IllegalArgumentException(errorMsg); |
| 80 | 0 | } catch (NoSuchMethodException e) { |
| 81 | 0 | final String errorMsg = "Property not found."; |
| 82 | 0 | log.error(errorMsg, e); |
| 83 | 0 | throw new IllegalArgumentException(errorMsg); |
| 84 | 8 | } |
| 85 | ||
| 86 | 8 | return evaluation; |
| 87 | } | |
| 88 | ||
| 89 | /** | |
| 90 | * Gets the name of the property whose value is to be predicated. | |
| 91 | * in the evaluation. | |
| 92 | * @return the property name, not null | |
| 93 | */ | |
| 94 | public String getPropertyName() { | |
| 95 | 0 | return propertyName; |
| 96 | } | |
| 97 | ||
| 98 | /** | |
| 99 | * Sets the name of the property whose value is to be predicated. | |
| 100 | * @param propertyName the name of the property whose value is to be predicated, | |
| 101 | * not null | |
| 102 | */ | |
| 103 | public void setPropertyName(String propertyName) { | |
| 104 | 0 | this.propertyName = propertyName; |
| 105 | 0 | } |
| 106 | ||
| 107 | /** | |
| 108 | * Gets the <code>Predicate</code> to be applied to the value of the named property | |
| 109 | * during {@link #evaluate}. | |
| 110 | * @return <code>Predicate</code>, not null | |
| 111 | */ | |
| 112 | public Predicate getPredicate() { | |
| 113 | 0 | return predicate; |
| 114 | } | |
| 115 | ||
| 116 | /** | |
| 117 | * Sets the <code>Predicate</code> to be applied to the value of the named property | |
| 118 | * during {@link #evaluate(Object)}. | |
| 119 | * @param predicate <code>Predicate</code>, not null | |
| 120 | */ | |
| 121 | public void setPredicate(Predicate predicate) { | |
| 122 | 0 | this.predicate = predicate; |
| 123 | 0 | } |
| 124 | ||
| 125 | } |