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

Example 1 with CompiledXQuery

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

the class XQueryStartupTrigger method executeQuery.

/**
 * Execute xquery on path
 *
 * @param broker eXist database broker
 * @param path path to query, formatted as xmldb:exist:///db/...
 */
private void executeQuery(DBBroker broker, String path) {
    XQueryContext context = null;
    try {
        // Get path to xquery
        Source source = SourceFactory.getSource(broker, null, path, false);
        if (source == null) {
            LOG.info("No XQuery found at '{}'", path);
        } else {
            // Setup xquery service
            XQuery service = broker.getBrokerPool().getXQueryService();
            context = new XQueryContext(broker.getBrokerPool());
            // Allow use of modules with relative paths
            String moduleLoadPath = StringUtils.substringBeforeLast(path, "/");
            context.setModuleLoadPath(moduleLoadPath);
            // Compile query
            CompiledXQuery compiledQuery = service.compile(context, source);
            LOG.info("Starting XQuery at '{}'", path);
            // Finish preparation
            context.prepareForExecution();
            // Execute
            Sequence result = service.execute(broker, compiledQuery, null);
            // Log results
            LOG.info("Result XQuery: '{}'", result.getStringValue());
        }
    } catch (Throwable t) {
        // Dirty, catch it all
        LOG.error("An error occurred during preparation/execution of the XQuery script {}: {}", path, t.getMessage(), t);
    } finally {
        if (context != null) {
            context.runCleanupTasks();
        }
    }
}

Example 2 with CompiledXQuery

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

the class AbstractFieldConfig method compile.

protected CompiledXQuery compile(DBBroker broker, String code) {
    final XQuery xquery = broker.getBrokerPool().getXQueryService();
    final XQueryContext context = new XQueryContext(broker.getBrokerPool());
    try {
        return xquery.compile(context, code);
    } catch (XPathException | PermissionDeniedException e) {
        LOG.error("Failed to compile expression: {}: {}", code, e.getMessage(), e);
        isValid = false;
        return null;
    }
}

Example 3 with CompiledXQuery

use of org.exist.xquery.CompiledXQuery 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 4 with CompiledXQuery

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

the class Util method withCompiledQuery.

static <T> T withCompiledQuery(final DBBroker broker, final Source source, final Function2E<CompiledXQuery, T, XPathException, PermissionDeniedException> op) throws XPathException, PermissionDeniedException, IOException {
    final BrokerPool pool = broker.getBrokerPool();
    final XQuery xqueryService = pool.getXQueryService();
    final XQueryPool xqueryPool = pool.getXQueryPool();
    final CompiledXQuery compiledQuery = compileQuery(broker, xqueryService, xqueryPool, source);
    try {
        return op.apply(compiledQuery);
    } finally {
        if (compiledQuery != null) {
            xqueryPool.returnCompiledXQuery(source, compiledQuery);
        }
    }
}

Example 5 with CompiledXQuery

use of org.exist.xquery.CompiledXQuery 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);
        }
    });
}