private void buildXQueryDynamicContext( XQueryContext context, Object[] params, MutableDocumentSet docsToLock, boolean bindVariables) throws XPathException { context.setBackwardsCompatibility(false); context.setStaticallyKnownDocuments(docs); context.setBaseURI(baseUri == null ? new AnyURIValue("/db") : baseUri); if (bindVariables) { for (Map.Entry<QName, Object> entry : bindings.entrySet()) { context.declareVariable( new org.exist.dom.QName( entry.getKey().getLocalPart(), entry.getKey().getNamespaceURI(), entry.getKey().getPrefix()), convertValue(entry.getValue())); } if (params != null) for (int i = 0; i < params.length; i++) { Object convertedValue = convertValue(params[i]); if (docsToLock != null && convertedValue instanceof Sequence) { docsToLock.addAll(((Sequence) convertedValue).getDocumentSet()); } context.declareVariable("_" + (i + 1), convertedValue); } } }
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()); } }