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Tool to convert CSV and XLS to XML, to transform XML and to convert XML to CSV, HTML, other text files, PDF etc., useful as command line tool and integrated in other projects.
/*
* 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.
*/
// $Id: StreamResult.java 446598 2006-09-15 12:55:40Z jeremias $
package javax.xml.transform.stream;
import java.lang.reflect.Method;
import javax.xml.transform.Result;
import java.io.File;
import java.io.OutputStream;
import java.io.Writer;
import java.net.MalformedURLException;
/**
* Acts as an holder for a transformation result,
* which may be XML, plain Text, HTML, or some other form of markup.
*
* @author Jeff Suttor
*/
public class StreamResult implements Result {
/** If {@link javax.xml.transform.TransformerFactory#getFeature}
* returns true when passed this value as an argument,
* the Transformer supports Result output of this type.
*/
public static final String FEATURE =
"http://javax.xml.transform.stream.StreamResult/feature";
/**
* Zero-argument default constructor.
*/
public StreamResult() {
}
/**
* Construct a StreamResult from a byte stream. Normally,
* a stream should be used rather than a reader, so that
* the transformer may use instructions contained in the
* transformation instructions to control the encoding.
*
* @param outputStream A valid OutputStream reference.
*/
public StreamResult(OutputStream outputStream) {
setOutputStream(outputStream);
}
/**
* Construct a StreamResult from a character stream. Normally,
* a stream should be used rather than a reader, so that
* the transformer may use instructions contained in the
* transformation instructions to control the encoding. However,
* there are times when it is useful to write to a character
* stream, such as when using a StringWriter.
*
* @param writer A valid Writer reference.
*/
public StreamResult(Writer writer) {
setWriter(writer);
}
/**
* Construct a StreamResult from a URL.
*
* @param systemId Must be a String that conforms to the URI syntax.
*/
public StreamResult(String systemId) {
this.systemId = systemId;
}
/**
* Construct a StreamResult from a File.
*
* @param f Must a non-null File reference.
*/
public StreamResult(File f) {
setSystemId(f);
}
/**
* Set the ByteStream that is to be written to. Normally,
* a stream should be used rather than a reader, so that
* the transformer may use instructions contained in the
* transformation instructions to control the encoding.
*
* @param outputStream A valid OutputStream reference.
*/
public void setOutputStream(OutputStream outputStream) {
this.outputStream = outputStream;
}
/**
* Get the byte stream that was set with setOutputStream.
*
* @return The byte stream that was set with setOutputStream, or null
* if setOutputStream or the ByteStream constructor was not called.
*/
public OutputStream getOutputStream() {
return outputStream;
}
/**
* Set the writer that is to receive the result. Normally,
* a stream should be used rather than a writer, so that
* the transformer may use instructions contained in the
* transformation instructions to control the encoding. However,
* there are times when it is useful to write to a writer,
* such as when using a StringWriter.
*
* @param writer A valid Writer reference.
*/
public void setWriter(Writer writer) {
this.writer = writer;
}
/**
* Get the character stream that was set with setWriter.
*
* @return The character stream that was set with setWriter, or null
* if setWriter or the Writer constructor was not called.
*/
public Writer getWriter() {
return writer;
}
/**
* Set the systemID that may be used in association
* with the byte or character stream, or, if neither is set, use
* this value as a writeable URI (probably a file name).
*
* @param systemId The system identifier as a URI string.
*/
public void setSystemId(String systemId) {
this.systemId = systemId;
}
/**
* Set the system ID from a File reference.
*
* Note the use of {@link File#toURI()} and {@link File#toURL()}.
* toURI() is prefered and used if possible.
* To allow JAXP 1.3 to run on J2SE 1.3, toURL()
* is used if a {@link NoSuchMethodException} is thrown by the attempt
* to use toURI().
*
* @param f Must a non-null File reference.
*/
public void setSystemId(File f) {
try {
// use reflection to call f.toURI().toString().
// Avoid compile time dependency on J2SE 1.4.
Method toURIMethod = f.getClass().getMethod("toURI", (Class[]) null);
Object uri = toURIMethod.invoke(f, (Object[]) null);
Method toStringMethod = uri.getClass().getMethod("toString", (Class[]) null);
this.systemId = (String)toStringMethod.invoke(uri, (Object[]) null);
}
catch (Exception exception)
{
// running on J2SE 1.3?
try {
this.systemId = f.toURL().toString();
} catch (MalformedURLException malformedURLException) {
this.systemId = null;
throw new RuntimeException(
"javax.xml.transform.stream.StreamResult#setSystemId(File f) with MalformedURLException: "
+ malformedURLException.toString()
);
}
}
}
/**
* Get the system identifier that was set with setSystemId.
*
* @return The system identifier that was set with setSystemId, or null
* if setSystemId was not called.
*/
public String getSystemId() {
return systemId;
}
//////////////////////////////////////////////////////////////////////
// Internal state.
//////////////////////////////////////////////////////////////////////
/**
* The systemID that may be used in association
* with the byte or character stream, or, if neither is set, use
* this value as a writeable URI (probably a file name).
*/
private String systemId;
/**
* The byte stream that is to be written to.
*/
private OutputStream outputStream;
/**
* The character stream that is to be written to.
*/
private Writer writer;
}