Revision 465
Added by berkley almost 24 years ago
| MetaCatServlet.java | ||
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// in defaultdocpath dir |
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private String executescript = null; |
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/** |
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* Initialize the servlet by creating appropriate database connections |
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*/ |
| ... | ... | |
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PrintWriter out = response.getWriter(); |
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out.println("Error: action not registered. Please report this error.");
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} |
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util.closeConnections(); |
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// Close the stream to the client |
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//out.close(); |
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} |
| ... | ... | |
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{
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String xmlquery = ((String[])params.get("query"))[0];
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String qformat = ((String[])params.get("qformat"))[0];
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Hashtable doclist = runQuery(xmlquery, user, group); |
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String resultdoc = createResultDocument(doclist, transformQuery(xmlquery)); |
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String resultdoc = null; |
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String[] returndoc = null; |
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if(params.contains("returndoc"))
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{
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returndoc = (String[])params.get("returndoc");
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} |
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Hashtable doclist = runQuery(xmlquery, user, group, returndoc); |
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//String resultdoc = createResultDocument(doclist, transformQuery(xmlquery)); |
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resultdoc = createResultDocument(doclist, transformQuery(xmlquery)); |
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//format and transform the results |
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if(qformat.equals("html")) {
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transformResultset(resultdoc, response, out); |
| ... | ... | |
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HttpServletResponse response, String user, String group) |
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{
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//create the query and run it |
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String[] returndoc = null; |
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if(params.containsKey("returndoc"))
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{
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returndoc = (String[])params.get("returndoc");
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} |
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String xmlquery = DBQuery.createSQuery(params); |
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Hashtable doclist = runQuery(xmlquery, user, group); |
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String qformat = ((String[])params.get("qformat"))[0];
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String resultdoc = createResultDocument(doclist, transformQuery(params)); |
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Hashtable doclist = runQuery(xmlquery, user, group, returndoc); |
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String qformat = ((String[])params.get("qformat"))[0];
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String resultdoc = null; |
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resultdoc = createResultDocument(doclist, transformQuery(params)); |
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//format and transform the results |
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if(qformat.equals("html")) {
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* |
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* @param xmlquery the query to run |
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*/ |
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private Hashtable runQuery(String xmlquery, String user, String group) |
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private Hashtable runQuery(String xmlquery, String user, String group, |
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String[] returndoc) |
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{
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Hashtable doclist=null; |
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Connection conn = null; |
| ... | ... | |
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{
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conn = util.getConnection(); |
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DBQuery queryobj = new DBQuery(conn, saxparser); |
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doclist = queryobj.findDocuments(new StringReader(xmlquery),user,group); |
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doclist = queryobj.findDocuments(new StringReader(xmlquery),user,group, |
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returndoc); |
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util.returnConnection(conn); |
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return doclist; |
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} |
| ... | ... | |
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/** |
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* Transforms a hashtable of documents to an xml or html result. |
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* If there is a returndoc, then it only displays documents of |
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* whatever type returndoc represents. If a result is found in a document |
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* that is not of type returndoc then this attempts to find a relation |
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* between this document and one that satifies the returndoc doctype. |
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* |
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* @param doclist- the hashtable to transform |
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* @param xmlquery- the query that returned the dolist result |
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* @param resultdoc- the document type to backtrack to. |
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*/ |
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protected String createResultDocument(Hashtable doclist, String xmlquery) |
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{
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String document = null; |
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resultset.append("<?xml version=\"1.0\"?>\n");
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resultset.append("<resultset>\n");
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resultset.append(" <query>" + xmlquery + "</query>");
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Enumeration doclistkeys = doclist.keys(); |
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while (doclistkeys.hasMoreElements()) |
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{
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String[] murlParams = murl.getParam(0); |
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if(murlParams[0].equals("docid"))
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{//the docid should be first
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murl.printParams(); |
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//murl.printParams();
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docid = murlParams[1]; //get the docid value |
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conn = util.getConnection(); |
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xmldoc = new DocumentImpl(conn, docid); |
| ... | ... | |
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accNumber = null; |
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} |
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newdocid = DocumentImpl.write(conn, xml, doAction, accNumber, |
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user, group); |
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user, group); |
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DocumentImpl xmldoc = new DocumentImpl(conn, newdocid); |
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//if this is a package file then write the package info to |
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//the xml_relation table. relationHandler checks to see |
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//if it is a package file so you don't have to do it here. |
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relationHandler rth = new relationHandler(xmldoc); |
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} catch (NullPointerException npe) {
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newdocid = DocumentImpl.write(conn,xml,doAction,null,user,group); |
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} |
Also available in: Unified diff
Added backtrack functionality. Backtracking works by passing a returndoc parameter. There can be more than one. If a document that is hit by a query is not of type returndoc then it searches the database for a related file of type returndoc. If one is found it is displayed, if no relation is found, the original is displayed.
Support was also added for an index of relations. the table xml_relation handles the all of the relation indexing.