Beispiel #1
0
 private void buildXQueryStaticContext(XQueryContext context, boolean importModules)
     throws XPathException {
   context.declareNamespaces(namespaceBindings.getCombinedMap());
   for (Map.Entry<String, Document> entry : moduleMap.entrySet()) {
     context.importModule(entry.getKey(), null, "xmldb:exist:///db" + entry.getValue().path());
   }
 }
Beispiel #2
0
 private org.exist.source.Source buildQuerySource(String query, Object[] params, String cookie) {
   Map<String, String> combinedMap = namespaceBindings.getCombinedMap();
   for (Map.Entry<String, Document> entry : moduleMap.entrySet()) {
     combinedMap.put("<module> " + entry.getKey(), entry.getValue().path());
   }
   for (Map.Entry<QName, Object> entry : bindings.entrySet()) {
     combinedMap.put(
         "<var> " + entry.getKey(),
         null); // don't care about values, as long as the same vars are bound
   }
   combinedMap.put("<posvars> " + params.length, null);
   combinedMap.put("<cookie>", cookie);
   // TODO: should include statically known documents and baseURI too?
   return new StringSourceWithMapKey(query, combinedMap);
 }
Beispiel #3
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 /**
  * Clone this query service, optionally overriding the clone's namespace and variable bindings. If
  * the namespace bindings override or variable bindings override is specified, then that object is
  * cloned and used for its respective purpose. If an override is not specified, the bindings are
  * cloned from the original query service.
  *
  * @param nsBindingsOverride the namespace bindings to clone, or <code>null</code> to clone from
  *     the original
  * @param varBindingsOverride the variable bindings to clone, or <code>null</code> to clone from
  *     the original
  * @return a clone of this query service with bindings optionally overridden
  */
 public QueryService clone(NamespaceMap nsBindingsOverride, Map<QName, ?> varBindingsOverride) {
   try {
     QueryService that = (QueryService) super.clone();
     that.namespaceBindings =
         nsBindingsOverride != null ? nsBindingsOverride.clone() : that.namespaceBindings.clone();
     if (varBindingsOverride == null) {
       that.bindings = new HashMap<QName, Object>(that.bindings);
     } else {
       that.bindings = new HashMap<QName, Object>();
       for (Map.Entry<QName, ?> entry : varBindingsOverride.entrySet()) {
         that.let(entry.getKey(), entry.getValue());
       }
     }
     that.moduleMap = new TreeMap<String, Document>(moduleMap);
     return that;
   } catch (CloneNotSupportedException e) {
     throw new RuntimeException("unexpected exception", e);
   }
 }
Beispiel #4
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 boolean isFreshFrom(Resource origin) {
   return !presub
       && bindings.isEmpty()
       && moduleMap.isEmpty()
       && (namespaceBindings == null || namespaceBindings.isFreshFrom(origin.namespaceBindings()));
 }
Beispiel #5
0
 ItemList executeQuery(String query, WrapperFactory wrapperFactory, Object[] params) {
   long t1 = System.currentTimeMillis(), t2 = 0, t3 = 0, t4 = 0;
   if (presub) query = presub(query, params);
   DBBroker broker = null;
   try {
     broker = db.acquireBroker();
     prepareContext(broker);
     if (overrideDocs != null) docs = overrideDocs;
     final org.exist.source.Source source = buildQuerySource(query, params, "execute");
     final XQuery xquery = broker.getXQueryService();
     final XQueryPool pool = xquery.getXQueryPool();
     CompiledXQuery compiledQuery = pool.borrowCompiledXQuery(broker, source);
     MutableDocumentSet docsToLock = new DefaultDocumentSet();
     if (docs != null) docsToLock.addAll(docs);
     if (base != null) docsToLock.addAll(base.getDocumentSet());
     try {
       XQueryContext context;
       if (compiledQuery == null) {
         context = xquery.newContext(AccessContext.INTERNAL_PREFIX_LOOKUP);
         buildXQueryStaticContext(context, true);
       } else {
         context = compiledQuery.getContext();
         // static context already set
       }
       buildXQueryDynamicContext(context, params, docsToLock, true);
       t2 = System.currentTimeMillis();
       if (compiledQuery == null) {
         compiledQuery = xquery.compile(context, source);
         t3 = System.currentTimeMillis();
       }
       docsToLock.lock(broker, false, false);
       try {
         return new ItemList(
             xquery.execute(wrap(compiledQuery, wrapperFactory, context), base),
             namespaceBindings.extend(),
             db);
       } finally {
         docsToLock.unlock(false);
         t4 = System.currentTimeMillis();
       }
     } finally {
       if (compiledQuery != null) pool.returnCompiledXQuery(source, compiledQuery);
     }
   } catch (XPathException e) {
     LOG.debug(
         "query execution failed --  "
             + query
             + "  -- "
             + (params == null ? "" : " with params " + Arrays.asList(params))
             + (bindings.isEmpty() ? "" : " and bindings " + bindings));
     throw new DatabaseException("failed to execute query", e);
   } catch (IOException e) {
     throw new DatabaseException("unexpected exception", e);
   } catch (LockException e) {
     throw new DatabaseException("deadlock", e);
   } catch (PermissionDeniedException e) {
     throw new DatabaseException("permission denied", e);
   } finally {
     db.releaseBroker(broker);
     STATS.update(query, t1, t2, t3, t4, System.currentTimeMillis());
   }
 }
Beispiel #6
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 /**
  * Declare a namespace binding within the scope of this query.
  *
  * @param key the key to bind
  * @param uri the namespace uri
  * @return this service, to chain calls
  */
 public QueryService namespace(String key, String uri) {
   namespaceBindings.put(key, uri);
   return this;
 }