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*
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*
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* General Public License Version 2 only ("GPL") or the Common Development
* and Distribution License("CDDL") (collectively, the "License"). You
* may not use this file except in compliance with the License. You can
* obtain a copy of the License at
* https://oss.oracle.com/licenses/CDDL+GPL-1.1
* or LICENSE.txt. See the License for the specific
* language governing permissions and limitations under the License.
*
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* file and include the License file at LICENSE.txt.
*
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* exception as provided by Oracle in the GPL Version 2 section of the License
* file that accompanied this code.
*
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package com.sun.xml.txw2.output;
import com.sun.xml.txw2.TxwException;
import javax.xml.transform.stream.StreamResult;
import java.io.BufferedWriter;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.io.OutputStreamWriter;
import java.io.Writer;
import java.io.UnsupportedEncodingException;
/**
* {@link XmlSerializer} for {@link javax.xml.transform.stream.StreamResult}.
*
* @author [email protected]
*/
public class StreamSerializer implements XmlSerializer {
// delegate to SaxSerializer
private final SaxSerializer serializer;
private final XMLWriter writer;
public StreamSerializer(OutputStream out) {
this(createWriter(out));
}
public StreamSerializer(OutputStream out,String encoding) throws UnsupportedEncodingException {
this(createWriter(out,encoding));
}
public StreamSerializer(Writer out) {
this(new StreamResult(out));
}
public StreamSerializer(StreamResult streamResult) {
// if this method opened a stream, let it close it
final OutputStream[] autoClose = new OutputStream[1];
if (streamResult.getWriter() != null)
writer = createWriter(streamResult.getWriter());
else if (streamResult.getOutputStream() != null)
writer = createWriter(streamResult.getOutputStream());
else if (streamResult.getSystemId() != null) {
String fileURL = streamResult.getSystemId();
fileURL = convertURL(fileURL);
try {
FileOutputStream fos = new FileOutputStream(fileURL);
autoClose[0] = fos;
writer = createWriter(fos);
} catch (IOException e) {
throw new TxwException(e);
}
} else
throw new IllegalArgumentException();
// now delegate to the SaxSerializer
serializer = new SaxSerializer(writer,writer,false) {
public void endDocument() {
super.endDocument();
if(autoClose[0]!=null) {
try {
autoClose[0].close();
} catch (IOException e) {
throw new TxwException(e);
}
autoClose[0] = null;
}
}
};
}
private StreamSerializer(XMLWriter writer) {
this.writer = writer;
// now delegate to the SaxSerializer
serializer = new SaxSerializer(writer,writer,false);
}
private String convertURL(String url) {
url = url.replace('\\', '/');
url = url.replaceAll("//","/");
url = url.replaceAll("//","/");
if (url.startsWith("file:/")) {
if (url.substring(6).indexOf(":") > 0)
url = url.substring(6);
else
url = url.substring(5);
} // otherwise assume that it's a file name
return url;
}
// XmlSerializer api's - delegate to SaxSerializer
public void startDocument() {
serializer.startDocument();
}
public void beginStartTag(String uri, String localName, String prefix) {
serializer.beginStartTag(uri, localName, prefix);
}
public void writeAttribute(String uri, String localName, String prefix, StringBuilder value) {
serializer.writeAttribute(uri, localName, prefix, value);
}
public void writeXmlns(String prefix, String uri) {
serializer.writeXmlns(prefix, uri);
}
public void endStartTag(String uri, String localName, String prefix) {
serializer.endStartTag(uri, localName, prefix);
}
public void endTag() {
serializer.endTag();
}
public void text(StringBuilder text) {
serializer.text(text);
}
public void cdata(StringBuilder text) {
serializer.cdata(text);
}
public void comment(StringBuilder comment) {
serializer.comment(comment);
}
public void endDocument() {
serializer.endDocument();
}
public void flush() {
serializer.flush();
try {
writer.flush();
} catch (IOException e) {
throw new TxwException(e);
}
}
// other supporting code
private static XMLWriter createWriter(Writer w) {
// buffering improves the performance
DataWriter dw = new DataWriter(new BufferedWriter(w));
dw.setIndentStep(" ");
return dw;
}
private static XMLWriter createWriter(OutputStream os, String encoding) throws UnsupportedEncodingException {
XMLWriter writer = createWriter(new OutputStreamWriter(os,encoding));
writer.setEncoding(encoding);
return writer;
}
private static XMLWriter createWriter(OutputStream os) {
try {
return createWriter(os,"UTF-8");
} catch (UnsupportedEncodingException e) {
// UTF-8 is supported on all platforms.
throw new Error(e);
}
}
}
