Examples with XQueryContext org.exist.xquery.XQueryContext used on opensource projects

Example 6 with XQueryContext

use of org.exist.xquery.XQueryContext in project exist by eXist-db.

the class Util method compileQuery.

static CompiledXQuery compileQuery(final DBBroker broker, final XQuery xqueryService, final XQueryPool xqueryPool, final Source query) throws PermissionDeniedException, XPathException, IOException {
    CompiledXQuery compiled = xqueryPool.borrowCompiledXQuery(broker, query);
    XQueryContext context;
    if (compiled == null) {
        context = new XQueryContext(broker.getBrokerPool());
    } else {
        context = compiled.getContext();
        context.prepareForReuse();
    }
    if (compiled == null) {
        compiled = xqueryService.compile(context, query);
    } else {
        compiled.getContext().updateContext(context);
        context.getWatchDog().reset();
    }
    return compiled;
}

Example 7 with XQueryContext

use of org.exist.xquery.XQueryContext in project exist by eXist-db.

the class JNDIModule method retrieveJNDIContext.

/**
 * Retrieves a previously stored Connection from the Context of an XQuery
 *
 * @param context 		The Context of the XQuery containing the JNDI Context
 * @param ctxID 		The ID of the JNDI Context to retrieve from the Context of the XQuery
 *
 * @return the JNDI context
 */
public static final Context retrieveJNDIContext(XQueryContext context, long ctxID) {
    Context jndiContext = null;
    // get the existing connections map from the context
    HashMap contexts = (HashMap) context.getAttribute(JNDIModule.JNDICONTEXTS_VARIABLE);
    if (contexts != null) {
        jndiContext = (Context) contexts.get(ctxID);
    }
    return (jndiContext);
}

Example 8 with XQueryContext

use of org.exist.xquery.XQueryContext in project exist by eXist-db.

the class JNDIModule method closeJNDIContext.

/**
 * Closes a specified JNDI Context for the specified XQueryContext
 *
 * @param context 	The context to close JNDI Contexts for
 * @param ctxID 			The ID of the JNDI Context to retrieve from the Context of the XQuery
 * @param contexts 			The contexts hashmap
 */
private static final void closeJNDIContext(XQueryContext context, long ctxID, HashMap contexts) {
    Context ctx = null;
    if (contexts != null) {
        ctx = (Context) contexts.get(ctxID);
        if (ctx != null) {
            try {
                // close the connection
                ctx.close();
                // remove it from the connections map
                contexts.remove(ctxID);
            } catch (NamingException ne) {
                LOG.error("Unable to close JNDI Context", ne);
            }
        }
    }
}

Example 9 with XQueryContext

use of org.exist.xquery.XQueryContext in project exist by eXist-db.

the class LocalXPathQueryService method execute.

private ResourceSet execute(final LocalXmldbFunction<Source> sourceOp) throws XMLDBException {
    return withDb((broker, transaction) -> {
        final long start = System.currentTimeMillis();
        final Source source = sourceOp.apply(broker, transaction);
        final XmldbURI[] docs = new XmldbURI[] { XmldbURI.create(collection.getName(broker, transaction)) };
        final XQuery xquery = brokerPool.getXQueryService();
        final XQueryPool pool = brokerPool.getXQueryPool();
        XQueryContext context;
        CompiledXQuery compiled = pool.borrowCompiledXQuery(broker, source);
        if (compiled == null) {
            context = new XQueryContext(broker.getBrokerPool());
        } else {
            context = compiled.getContext();
            context.prepareForReuse();
        }
        context.setStaticallyKnownDocuments(docs);
        if (variableDecls.containsKey(Debuggee.PREFIX + ":session")) {
            context.declareVariable(Debuggee.SESSION, variableDecls.get(Debuggee.PREFIX + ":session"));
            variableDecls.remove(Debuggee.PREFIX + ":session");
        }
        setupContext(source, context);
        if (compiled == null) {
            compiled = xquery.compile(context, source);
        }
        try {
            final Sequence result = xquery.execute(broker, compiled, null, properties);
            if (LOG.isDebugEnabled()) {
                LOG.debug("query took {} ms.", System.currentTimeMillis() - start);
            }
            final Properties resourceSetProperties = new Properties(properties);
            resourceSetProperties.setProperty(EXistOutputKeys.XDM_SERIALIZATION, "yes");
            return result != null ? new LocalResourceSet(user, brokerPool, collection, resourceSetProperties, result, null) : null;
        } finally {
            compiled.getContext().runCleanupTasks();
            pool.returnCompiledXQuery(source, compiled);
        }
    });
}

Example 10 with XQueryContext

use of org.exist.xquery.XQueryContext in project exist by eXist-db.

the class LocalXPathQueryService method compileAndCheck.

private Either<XPathException, CompiledExpression> compileAndCheck(final DBBroker broker, final Txn transaction, final String query) throws XMLDBException {
    final long start = System.currentTimeMillis();
    final XQuery xquery = broker.getBrokerPool().getXQueryService();
    final XQueryContext context = new XQueryContext(broker.getBrokerPool());
    try {
        setupContext(null, context);
        final CompiledExpression expr = xquery.compile(context, query);
        if (LOG.isDebugEnabled()) {
            LOG.debug("compilation took {}", System.currentTimeMillis() - start);
        }
        return Either.Right(expr);
    } catch (final PermissionDeniedException e) {
        throw new XMLDBException(ErrorCodes.PERMISSION_DENIED, e.getMessage(), e);
    } catch (final IllegalArgumentException e) {
        throw new XMLDBException(ErrorCodes.VENDOR_ERROR, e.getMessage(), e);
    } catch (final XPathException e) {
        return Either.Left(e);
    }
}