Revision 68
Added by higgins almost 25 years ago
| src/edu/ucsb/nceas/metacat/MetaCatServlet.java | ||
|---|---|---|
| 35 | 35 |
import oracle.xml.parser.v2.XSLException; |
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import oracle.xml.parser.v2.XMLDocumentFragment; |
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import oracle.xml.parser.v2.XSLProcessor; |
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import oracle.xml.parser.v2.*; //Oracle parser - DFH |
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/** |
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* A metadata catalog server implemented as a Java Servlet |
| ... | ... | |
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* docid=34 -- display the document with the document ID number 34<br> |
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* action=putdocument -- load an XML document into the database store<br> |
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* doctext -- XML text ofthe document to load into the database<br> |
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* query -- actual query text (to go with 'action=query')<br> |
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* action=validate -- vallidate the xml contained in validatetext<br> |
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* valtext -- XML text to be validated |
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*/ |
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public class MetaCatServlet extends HttpServlet {
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|
| ... | ... | |
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super.init( config ); |
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this.config = config; |
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this.context = config.getServletContext(); |
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System.out.println("Servlet Initialize");
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try {
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// Open a connection to the database |
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conn = MetaCatUtil.openDBConnection( |
| ... | ... | |
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queryobj = new DBSimpleQuery(conn); |
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docreader = new DBReader(conn); |
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} catch (Exception e) {
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} |
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} catch ( ServletException ex ) {
|
| ... | ... | |
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handleGetDocumentAction(out, params, response); |
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} else if (action.equals("putdocument")) {
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handlePutDocumentAction(out, params, response); |
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} else if (action.equals("validate")) {
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handleValidateAction(out, params, response); |
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} else {
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out.println("Error: action not registered. Please report this error.");
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} |
| ... | ... | |
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out.println(doctext[0]); |
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} |
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/** |
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* Handle the validtion request and return the results |
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* to the requestor - DFH |
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*/ |
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private void handleValidateAction(PrintWriter out, Hashtable params, HttpServletResponse response) {
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// Get the document indicated |
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String[] valtext = (String[])params.get("valtext");
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SAXParser parser = new SAXParser(); // works for both Xerces and Oracle |
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parser.setValidationMode(true); // Oracle |
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GenericXMLValidate gxv = new GenericXMLValidate(parser); |
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boolean valid = gxv.validateString(valtext[0]); |
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// set content type and other response header fields first |
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response.setContentType("text/plain");
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if (valid) {
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out.println("The input XML is VALID!");
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} |
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else {
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out.println("The input XML is NOT VALID\n" + gxv.returnErrors());
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} |
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} |
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} |
| MetaCatServlet.java | ||
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import oracle.xml.parser.v2.XSLException; |
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import oracle.xml.parser.v2.XMLDocumentFragment; |
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import oracle.xml.parser.v2.XSLProcessor; |
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import oracle.xml.parser.v2.*; //Oracle parser - DFH |
|
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|
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/** |
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* A metadata catalog server implemented as a Java Servlet |
| ... | ... | |
| 49 | 50 |
* docid=34 -- display the document with the document ID number 34<br> |
| 50 | 51 |
* action=putdocument -- load an XML document into the database store<br> |
| 51 | 52 |
* doctext -- XML text ofthe document to load into the database<br> |
| 53 |
* query -- actual query text (to go with 'action=query')<br> |
|
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* action=validate -- vallidate the xml contained in validatetext<br> |
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* valtext -- XML text to be validated |
|
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*/ |
| 53 | 57 |
public class MetaCatServlet extends HttpServlet {
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|
| ... | ... | |
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super.init( config ); |
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this.config = config; |
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this.context = config.getServletContext(); |
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System.out.println("Servlet Initialize");
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try {
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// Open a connection to the database |
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conn = MetaCatUtil.openDBConnection( |
| ... | ... | |
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|
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queryobj = new DBSimpleQuery(conn); |
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docreader = new DBReader(conn); |
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|
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} catch (Exception e) {
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} |
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} catch ( ServletException ex ) {
|
| ... | ... | |
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handleGetDocumentAction(out, params, response); |
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} else if (action.equals("putdocument")) {
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handlePutDocumentAction(out, params, response); |
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} else if (action.equals("validate")) {
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handleValidateAction(out, params, response); |
|
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} else {
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out.println("Error: action not registered. Please report this error.");
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} |
| ... | ... | |
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out.println(doctext[0]); |
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} |
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/** |
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* Handle the validtion request and return the results |
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* to the requestor - DFH |
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*/ |
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private void handleValidateAction(PrintWriter out, Hashtable params, HttpServletResponse response) {
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// Get the document indicated |
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String[] valtext = (String[])params.get("valtext");
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SAXParser parser = new SAXParser(); // works for both Xerces and Oracle |
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parser.setValidationMode(true); // Oracle |
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GenericXMLValidate gxv = new GenericXMLValidate(parser); |
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boolean valid = gxv.validateString(valtext[0]); |
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// set content type and other response header fields first |
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response.setContentType("text/plain");
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if (valid) {
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out.println("The input XML is VALID!");
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} |
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else {
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out.println("The input XML is NOT VALID\n" + gxv.returnErrors());
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} |
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} |
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} |
Also available in: Unified diff
MetaCatServlet Modifications for XML Validation;