Now that we have BeanUtils "free" versions of these they do not need to be maintained in experimental.
git-svn-id: https://svn.apache.org/repos/asf/jakarta/commons/proper/math/trunk@141264 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Mark R. Diggory
parent
7538855855
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/*
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* Copyright 2003-2004 The Apache Software Foundation.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package org.apache.commons.math.util;
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import java.lang.reflect.InvocationTargetException;
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import org.apache.commons.math.MathException;
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import org.apache.commons.beanutils.PropertyUtils;
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/**
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* Uses PropertyUtils to map a Bean getter to a double value.
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* @version $Revision: 1.1 $ $Date: 2004/06/01 22:10:17 $
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*/
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public class BeanTransformer implements NumberTransformer {
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/**
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* The propertyName for this Transformer
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*/
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private String propertyName;
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/**
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* Create a BeanTransformer
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*/
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public BeanTransformer() {
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this(null);
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}
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/**
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* Create a BeanTransformer with a specific PropertyName.
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* @param property The property.
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*/
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public BeanTransformer(final String property) {
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super();
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setPropertyName(property);
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}
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/**
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* Get the property String
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* @return the Property Name String
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*/
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public String getPropertyName() {
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return propertyName;
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}
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/**
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* Set the propertyString
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* @param string The string to set the property to.
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*/
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public void setPropertyName(final String string) {
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propertyName = string;
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}
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/**
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* @see org.apache.commons.math.util.NumberTransformer#transform(java.lang.Object)
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*/
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public double transform(final Object o) throws MathException {
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try {
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return ((Number) PropertyUtils.getProperty(o, getPropertyName())).doubleValue();
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} catch (IllegalAccessException e) {
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throw new MathException("IllegalAccessException in Transformation: " + e.getMessage(), e);
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} catch (InvocationTargetException e) {
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throw new MathException("InvocationTargetException in Transformation: " + e.getMessage(), e);
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} catch (NoSuchMethodException e) {
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throw new MathException("oSuchMethodException in Transformation: " + e.getMessage(), e);
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}
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}
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}
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@ -1,94 +0,0 @@
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/*
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* Copyright 2003-2004 The Apache Software Foundation.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package org.apache.commons.math.util;
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import org.apache.commons.math.MathException;
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import org.apache.commons.math.TestUtils;
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import junit.framework.TestCase;
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/**
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* @version $Revision: 1.1 $ $Date: 2004/06/01 22:10:17 $
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*/
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public class BeanTransformerTest extends TestCase {
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/**
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*
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*/
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public void testConstructor(){
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BeanTransformer b = new BeanTransformer();
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assertNull(b.getPropertyName());
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}
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/**
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*
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*/
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public void testConstructorString(){
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String name = "property";
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BeanTransformer b = new BeanTransformer(name);
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assertEquals(name, b.getPropertyName());
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}
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/**
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*
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*/
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public void testSetPropertyName(){
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String name = "property";
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BeanTransformer b = new BeanTransformer();
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b.setPropertyName(name);
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assertEquals(name, b.getPropertyName());
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}
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/**
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*
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*/
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public void testTransformNoSuchMethod(){
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BeanTransformer b = new BeanTransformer("z");
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TestBean target = new TestBean();
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try {
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b.transform(target);
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fail("Expecting MathException");
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} catch (MathException e) {
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// expected
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}
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}
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/**
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*
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*/
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public void testTransform() throws Exception {
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BeanTransformer b = new BeanTransformer("x");
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TestBean target = new TestBean();
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double value = Double.NaN;
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value = b.transform(target);
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TestUtils.assertEquals(1.0, value, 1.0e-2);
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}
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/**
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*
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*/
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public void testTransformInvalidType() throws Exception {
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BeanTransformer b = new BeanTransformer("y");
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TestBean target = new TestBean();
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try {
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b.transform(target);
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fail("Expecting ClassCastException");
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} catch(ClassCastException ex){
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// success
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}
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}
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}
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