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Commons Beanutils example source code file (FloatArrayConverter.java)
The Commons Beanutils FloatArrayConverter.java source code/* * 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.commons.beanutils.converters; import java.util.List; import org.apache.commons.beanutils.ConversionException; /** * <p>Standard {@link org.apache.commons.beanutils.Converter} implementation that converts an incoming * String into a primitive array of float. On a conversion failure, returns * a specified default value or throws a {@link ConversionException} depending * on how this instance is constructed.</p> * * @author Craig R. McClanahan * @version $Revision: 556229 $ $Date: 2007-07-14 07:11:19 +0100 (Sat, 14 Jul 2007) $ * @since 1.4 * @deprecated Replaced by the new {@link ArrayConverter} implementation */ public final class FloatArrayConverter extends AbstractArrayConverter { // ----------------------------------------------------------- Constructors /** * Create a {@link org.apache.commons.beanutils.Converter} that will throw * a {@link ConversionException} if a conversion error occurs. */ public FloatArrayConverter() { this.defaultValue = null; this.useDefault = false; } /** * Create a {@link org.apache.commons.beanutils.Converter} that will return * the specified default value if a conversion error occurs. * * @param defaultValue The default value to be returned */ public FloatArrayConverter(Object defaultValue) { this.defaultValue = defaultValue; this.useDefault = true; } // ------------------------------------------------------- Static Variables /** * <p>Model object for type comparisons. */ private static final float[] MODEL = new float[0]; // --------------------------------------------------------- Public Methods /** * Convert the specified input object into an output object of the * specified type. * * @param type Data type to which this value should be converted * @param value The input value to be converted * @return the converted value * * @exception ConversionException if conversion cannot be performed * successfully */ public Object convert(Class type, Object value) { // Deal with a null value if (value == null) { if (useDefault) { return (defaultValue); } else { throw new ConversionException("No value specified"); } } // Deal with the no-conversion-needed case if (MODEL.getClass() == value.getClass()) { return (value); } // Deal with input value as a String array if (strings.getClass() == value.getClass()) { try { String[] values = (String[]) value; float[] results = new float[values.length]; for (int i = 0; i < values.length; i++) { results[i] = Float.parseFloat(values[i]); } return (results); } catch (Exception e) { if (useDefault) { return (defaultValue); } else { throw new ConversionException(value.toString(), e); } } } // Parse the input value as a String into elements // and convert to the appropriate type try { List list = parseElements(value.toString()); float[] results = new float[list.size()]; for (int i = 0; i < results.length; i++) { results[i] = Float.parseFloat((String) list.get(i)); } return (results); } catch (Exception e) { if (useDefault) { return (defaultValue); } else { throw new ConversionException(value.toString(), e); } } } } Other Commons Beanutils examples (source code examples)Here is a short list of links related to this Commons Beanutils FloatArrayConverter.java source code file: |
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