/*
* $Id: StringToObjectArray.java 20377 2010-11-29 08:58:19Z dirk.olmes $
* --------------------------------------------------------------------------------------
* Copyright (c) MuleSoft, Inc. All rights reserved. http://www.mulesoft.com
*
* The software in this package is published under the terms of the CPAL v1.0
* license, a copy of which has been included with this distribution in the
* LICENSE.txt file.
*/
package org.mule.transformer.simple;
import org.mule.api.transformer.TransformerException;
import org.mule.transformer.AbstractTransformer;
import org.mule.transformer.types.DataTypeFactory;
import org.mule.util.IOUtils;
import org.mule.util.StringUtils;
import java.io.InputStream;
import java.io.UnsupportedEncodingException;
/**
* <code>StringToObjectArray</code> converts a String into an object array. This
* is useful in certain situations, as when a string needs to be converted into
* an Object[] in order to be passed to a SOAP service. The input String is parsed
* into the array based on a configurable delimiter - default is a space.
*/
public class StringToObjectArray extends AbstractTransformer
{
private String delimiter = null;
private static final String DEFAULT_DELIMITER = " ";
public StringToObjectArray()
{
registerSourceType(DataTypeFactory.STRING);
registerSourceType(DataTypeFactory.BYTE_ARRAY);
registerSourceType(DataTypeFactory.INPUT_STREAM);
setReturnDataType(DataTypeFactory.create(Object[].class));
}
@Override
public Object doTransform(Object src, String outputEncoding) throws TransformerException
{
String in;
if (src instanceof byte[])
{
in = createStringFromByteArray((byte[]) src, outputEncoding);
}
else if (src instanceof InputStream)
{
in = createStringFromInputStream((InputStream) src);
}
else
{
in = (String) src;
}
String[] out = StringUtils.splitAndTrim(in, getDelimiter());
return out;
}
protected String createStringFromByteArray(byte[] bytes, String outputEncoding) throws TransformerException
{
try
{
return new String(bytes, outputEncoding);
}
catch (UnsupportedEncodingException uee)
{
throw new TransformerException(this, uee);
}
}
protected String createStringFromInputStream(InputStream input)
{
try
{
return IOUtils.toString(input);
}
finally
{
IOUtils.closeQuietly(input);
}
}
/**
* @return the delimiter
*/
public String getDelimiter()
{
if (delimiter == null)
{
return DEFAULT_DELIMITER;
}
else
{
return delimiter;
}
}
/**
* @param delimiter the delimiter
*/
public void setDelimiter(String delimiter)
{
this.delimiter = delimiter;
}
}