Mercurial > dive4elements > gnv-client
diff gnv-artifacts/src/main/java/de/intevation/gnv/utils/ArtifactXMLUtilities.java @ 71:e4ecf3188bdf
Integrated FIS-Artifact
gnv-artifacts/trunk@62 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author | Tim Englich <tim.englich@intevation.de> |
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date | Thu, 10 Sep 2009 13:11:24 +0000 |
parents | |
children | 9345835e2bc1 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/gnv-artifacts/src/main/java/de/intevation/gnv/utils/ArtifactXMLUtilities.java Thu Sep 10 13:11:24 2009 +0000 @@ -0,0 +1,101 @@ +/** + * + */ +package de.intevation.gnv.utils; + +import java.io.File; +import java.io.IOException; +import java.io.InputStream; +import java.io.StringBufferInputStream; +import java.io.StringWriter; + +import javax.xml.parsers.DocumentBuilder; +import javax.xml.parsers.DocumentBuilderFactory; +import javax.xml.parsers.ParserConfigurationException; +import javax.xml.transform.Transformer; +import javax.xml.transform.TransformerConfigurationException; +import javax.xml.transform.TransformerException; +import javax.xml.transform.TransformerFactory; +import javax.xml.transform.TransformerFactoryConfigurationError; +import javax.xml.transform.dom.DOMSource; +import javax.xml.transform.stream.StreamResult; + +import org.apache.log4j.Logger; +import org.w3c.dom.Document; +import org.w3c.dom.Element; +import org.xml.sax.SAXException; + +import de.intevation.artifacts.ArtifactNamespaceContext; +import de.intevation.gnv.transition.timeseries.TimeSeriesOutputTransition; + +/** + * @author Tim Englich <tim.englich@intevation.de> + * + */ +public class ArtifactXMLUtilities { + /** + * the logger, used to log exceptions and additonaly information + */ + private static Logger log = Logger.getLogger(TimeSeriesOutputTransition.class); + + /** + * Constructor + */ + public ArtifactXMLUtilities() { + } + + /** + * @param document + * @return + */ + public Element createArtifactElement(Document document, String name) { + Element node = document.createElementNS(ArtifactNamespaceContext.NAMESPACE_URI, name); + node.setPrefix(ArtifactNamespaceContext.NAMESPACE_PREFIX); + return node; + } + + public String writeDocument2String(Document document){ + try { + TransformerFactory transformerFactory = TransformerFactory.newInstance(); + Transformer transformer = transformerFactory.newTransformer(); + DOMSource source = new DOMSource(document); + StringWriter sw = new StringWriter(); + StreamResult result = new StreamResult(sw); + transformer.transform(source, result); + return sw.getBuffer().toString(); + } catch (TransformerConfigurationException e) { + log.error(e,e); + } catch (TransformerFactoryConfigurationError e) { + log.error(e,e); + } catch (TransformerException e) { + log.error(e,e); + } + return null; + } + + public Document readDocument(InputStream inputStream){ + Document returnValue = null; + try { + DocumentBuilderFactory docBuilderFactory = DocumentBuilderFactory.newInstance(); + DocumentBuilder docBuilder = docBuilderFactory.newDocumentBuilder(); + returnValue = docBuilder.parse (inputStream); + } catch (ParserConfigurationException e) { + log.error(e,e); + } catch (SAXException e) { + log.error(e,e); + } catch (IOException e) { + log.error(e,e); + } + return returnValue; + } + + public Document reInitDocument(Document document){ + + StringBufferInputStream inputStream = new StringBufferInputStream(this.writeDocument2String(document)); + return this.readDocument(inputStream); + } + + + + +}