build.please.common.report.PrettyPrintingXmlWriter Maven / Gradle / Ivy

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package build.please.common.report;

import org.w3c.dom.Document;

import javax.xml.transform.OutputKeys;
import javax.xml.transform.Transformer;
import javax.xml.transform.TransformerFactory;
import javax.xml.transform.dom.DOMSource;
import javax.xml.transform.stream.StreamResult;
import java.io.BufferedOutputStream;
import java.io.File;
import java.io.FileOutputStream;
import java.io.OutputStream;

public class PrettyPrintingXmlWriter {
  public static void writeXMLDocumentToFile(String filename, Document doc) throws Exception {
    // Create an XML transformer that pretty-prints with a 2-space indent.
    TransformerFactory transformerFactory = TransformerFactory.newInstance();
    Transformer trans = transformerFactory.newTransformer();
    trans.setOutputProperty(OutputKeys.OMIT_XML_DECLARATION, "no");
    trans.setOutputProperty(OutputKeys.INDENT, "yes");
    trans.setOutputProperty("{http://xml.apache.org/xslt}indent-amount", "2");

    File outputFile = new File(filename);
    OutputStream output = new BufferedOutputStream(new FileOutputStream(outputFile));
    StreamResult streamResult = new StreamResult(output);
    DOMSource source = new DOMSource(doc);
    trans.transform(source, streamResult);
    output.close();
  }
}