org.apache.commons.beanutils.converters.FloatArrayConverter Maven / Gradle / Ivy
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This artifact provides a single jar that contains all classes required to use remote Jakarta Enterprise Beans and Jakarta Messaging, including
all dependencies. It is intended for use by those not using maven, maven users should just import the Jakarta Enterprise Beans and
Jakarta Messaging BOM's instead (shaded JAR's cause lots of problems with maven, as it is very easy to inadvertently end up
with different versions on classes on the class path).
/*
* 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;
/**
* 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.
*
* @version $Id: FloatArrayConverter.java 1454606 2013-03-08 22:30:51Z britter $
* @since 1.4
* @deprecated Replaced by the new {@link ArrayConverter} implementation
*/
@Deprecated
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
/**
* 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
*/
@Override
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);
}
}
}
}
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