Revision 2088
Added by Jing Tao over 20 years ago
| src/edu/ucsb/nceas/metacat/DBTransform.java | ||
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transformXMLDocument(doc, sourceType, targetType, qformat, pw, param, null); |
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} |
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/** |
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* @see transformXMLDocument(String doc, String sourceType, |
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* String targetType, String qFormat, StringWriter pw |
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* String sessionid) |
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*/ |
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public void transformXMLDocument(String doc, String sourceType, |
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String targetType, String qFormat, StringWriter pw) |
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{
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transformXMLDocument(doc, sourceType, targetType, qFormat, pw, null); |
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} |
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/** |
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* Transform an XML document using the stylesheet reference from the db |
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* |
| ... | ... | |
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// Look up the stylesheet for this type combination |
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String xslSystemId = getStyleSystemId(qformat, sourceType, targetType); |
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if (xslSystemId != null) |
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{
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try |
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{// Create a stylesheet from the system id that was found
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doc = removeDOCTYPE(doc); |
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StringReader xml = new StringReader(doc); |
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StreamResult result = new StreamResult(pw); |
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doTransform(xml, result, xslSystemId, param, qformat, sessionid); |
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if (xslSystemId != null) {
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// Create a stylesheet from the system id that was found |
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try {
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TransformerFactory tFactory = TransformerFactory.newInstance(); |
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Transformer transformer = tFactory.newTransformer( |
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new StreamSource(xslSystemId)); |
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transformer.setParameter("qformat", qformat);
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MetaCatUtil.debugMessage("qformat: "+qformat, 30);
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if(sessionid != null) |
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{
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transformer.setParameter("sessid", sessionid);
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} |
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// Set up parameter for transformation |
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if ( param != null) |
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{
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Enumeration en = param.keys(); |
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while (en.hasMoreElements()) |
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{
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String key =(String)en.nextElement(); |
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String value = ((String[])(param.get(key)))[0]; |
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MetaCatUtil.debugMessage(key+" : "+value, 30); |
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transformer.setParameter(key, value); |
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} |
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} |
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doc = removeDOCTYPE(doc); |
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StreamSource xml = new StreamSource(new StringReader(doc)); |
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//modify the system id for dtd |
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//modifiedXmlStreamSource(xml, sourceType); |
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transformer.transform(xml, new StreamResult(pw)); |
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} catch (Exception e) {
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} |
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catch (Exception e) |
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{
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pw.println(xslSystemId + "Error transforming document in " + |
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"DBTransform.transformXMLDocument: " + |
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e.getMessage()); |
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} |
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} else {
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} |
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else |
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{
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// No stylesheet registered form this document type, so just return the |
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// XML stream we were passed |
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pw.print(doc); |
| ... | ... | |
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*/ |
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public void transformXMLDocument(String doc, String sourceType, |
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String targetType, String qFormat, StringWriter pw, |
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String sessionid) {
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String sessionid) |
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{
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// Look up the stylesheet for this type combination |
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String xslSystemId = getStyleSystemId(qFormat, sourceType, targetType); |
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if (xslSystemId != null) {
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if (xslSystemId != null) |
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{
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// Create a stylesheet from the system id that was found |
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try {
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TransformerFactory tFactory = TransformerFactory.newInstance(); |
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Transformer transformer = tFactory.newTransformer( |
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new StreamSource(xslSystemId)); |
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if(sessionid != null) |
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{
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transformer.setParameter("sessid", sessionid);
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} |
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transformer.setParameter("qFormat", qFormat);
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try |
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{
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doc = removeDOCTYPE(doc); |
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StreamSource xml = new StreamSource(new StringReader(doc)); |
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//modify the system id for dtd |
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//modifiedXmlStreamSource(xml, sourceType); |
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transformer.transform(xml, new StreamResult(pw)); |
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} catch (Exception e) {
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StringReader xml = new StringReader(doc); |
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StreamResult result = new StreamResult(pw); |
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doTransform(xml, result, xslSystemId, null, qFormat, sessionid); |
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} |
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catch (Exception e) |
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{
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util.debugMessage(xslSystemId + "Error transforming document in " + |
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"DBTransform.transformXMLDocument: " + |
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e.getMessage(), 30); |
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} |
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} else {
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} |
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else |
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{
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// No stylesheet registered form this document type, so just return the |
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// XML stream we were passed |
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pw.write(doc); |
| ... | ... | |
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} |
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/** |
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* @see transformXMLDocument(String doc, String sourceType, |
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* String targetType, String qFormat, StringWriter pw |
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* String sessionid) |
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* Method to do transform for a string reader |
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* @param doc the document to be transformed |
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* @param sourcetype the document type of the source |
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* @param targettype the target document type |
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* @param qformat the name of the style set to use |
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* @param pw the PrintWriter to which output is printed |
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* @param params some parameters for eml2 transformation |
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*/ |
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public void transformXMLDocument(String doc, String sourceType, |
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String targetType, String qFormat, StringWriter pw) |
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public void transformXMLDocument(StringReader docContent, String sourceType, |
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String targetType, String qformat, |
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PrintWriter pw, Hashtable param, |
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String sessionid) |
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{
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// Look up the stylesheet for this type combination |
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String xslSystemId = getStyleSystemId(qformat, sourceType, targetType); |
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if (xslSystemId != null) |
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{
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try |
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{// Create a stylesheet from the system id that was found
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StreamResult result = new StreamResult(pw); |
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doTransform(docContent, result, xslSystemId, param, qformat, sessionid); |
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} |
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catch (Exception e) |
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{
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pw.println(xslSystemId + "Error transforming document in " + |
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"DBTransform.transformXMLDocument: " + |
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e.getMessage()); |
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} |
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} |
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else |
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{
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// No stylesheet registered form this document type, so just return the |
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// XML stream we were passed |
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pw.print(docContent); |
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} |
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} |
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/* |
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* Method to do transfer |
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*/ |
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private void doTransform(StringReader docContent, StreamResult resultOutput, |
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String xslSystemId, Hashtable param, |
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String qformat, String sessionid) |
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throws Exception |
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{
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transformXMLDocument(doc, sourceType, targetType, qFormat, pw, null); |
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} |
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if (xslSystemId != null) |
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{
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TransformerFactory tFactory = TransformerFactory.newInstance(); |
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Transformer transformer = tFactory.newTransformer( |
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new StreamSource(xslSystemId)); |
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transformer.setParameter("qformat", qformat);
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MetaCatUtil.debugMessage("qformat: "+qformat, 30);
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if(sessionid != null) |
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{
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transformer.setParameter("sessid", sessionid);
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} |
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// Set up parameter for transformation |
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if ( param != null) |
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{
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Enumeration en = param.keys(); |
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while (en.hasMoreElements()) |
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{
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String key =(String)en.nextElement(); |
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String value = ((String[])(param.get(key)))[0]; |
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MetaCatUtil.debugMessage(key+" : "+value, 30); |
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transformer.setParameter(key, value); |
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} |
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} |
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StreamSource xml = new StreamSource(docContent); |
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transformer.transform(xml,resultOutput); |
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} |
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}//doTransform |
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/** |
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* gets the content of a tag in a given xml file with the given path |
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* @param f the file to parse |
| ... | ... | |
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/* Method to modified the system id of xml input -- make sure it |
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points to system id in xml_catalog table |
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*/ |
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private void modifiedXmlStreamSource(StreamSource xml, String publicId)
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private void modifiedXmlStreamSource(StreamSource xml, String publicId) |
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throws Exception |
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{
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// make sure the xml is not null |
| ... | ... | |
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//set system id to input stream |
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xml.setSystemId(systemId); |
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} |
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/* |
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* removes the DOCTYPE element and its contents from a Sting |
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* used to avoid problems with incorrect SystemIDs
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* used to avoid problems with incorrect SystemIDs |
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*/ |
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private String removeDOCTYPE(String in) {
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private String removeDOCTYPE(String in) {
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String ret = ""; |
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int startpos = in.indexOf("<!DOCTYPE");
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if (startpos>-1) {
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int stoppos = in.indexOf(">", startpos + 8);
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int stoppos = in.indexOf(">", startpos + 8);
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ret = in.substring(0,startpos) + in.substring(stoppos+1,in.length()); |
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} else {
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return in; |
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} |
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return ret;
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return ret; |
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} |
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/** |
Also available in: Unified diff
Add a new transform method.