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

Example 21 with XQueryContext

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

the class DocUtils method getDocumentByPathFromDB.

private static Sequence getDocumentByPathFromDB(final XQueryContext context, final String path) throws XPathException, PermissionDeniedException {
    // check if the loaded documents should remain locked
    final LockMode lockType = context.lockDocumentsOnLoad() ? LockMode.WRITE_LOCK : LockMode.READ_LOCK;
    try {
        final XmldbURI baseURI = context.getBaseURI().toXmldbURI();
        final XmldbURI pathUri;
        if (baseURI != null && !(baseURI.equals("") || baseURI.equals("/db"))) {
            // relative collection Path: add the current base URI
            pathUri = baseURI.resolveCollectionPath(XmldbURI.xmldbUriFor(path, false));
        } else {
            pathUri = XmldbURI.xmldbUriFor(path, false);
        }
        // relative collection Path: add the current module call URI if applicable
        final XmldbURI resourceUri = Optional.ofNullable(context.getModuleLoadPath()).filter(moduleLoadPath -> !moduleLoadPath.isEmpty()).flatMap(moduleLoadPath -> Try(() -> XmldbURI.xmldbUriFor(moduleLoadPath)).toOption()).map(moduleLoadPath -> moduleLoadPath.resolveCollectionPath(pathUri)).orElse(pathUri);
        // try to open the document and acquire a lock
        try (final LockedDocument lockedDoc = context.getBroker().getXMLResource(resourceUri, lockType)) {
            if (lockedDoc == null) {
                return Sequence.EMPTY_SEQUENCE;
            } else {
                final DocumentImpl doc = lockedDoc.getDocument();
                if (!doc.getPermissions().validate(context.getSubject(), Permission.READ)) {
                    throw new PermissionDeniedException("Insufficient privileges to read resource " + path);
                }
                if (doc.getResourceType() == DocumentImpl.BINARY_FILE) {
                    throw new XPathException("Document " + path + " is a binary resource, not an XML document. Please consider using the function util:binary-doc() to retrieve a reference to it.");
                }
                return new NodeProxy(doc);
            }
        }
    } catch (final URISyntaxException e) {
        throw new XPathException(e);
    }
}

Example 22 with XQueryContext

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

the class LowLevelTextTest method setUp.

@Before
public void setUp() throws DatabaseConfigurationException, EXistException, XPathException, PermissionDeniedException, IOException {
    final BrokerPool pool = existEmbeddedServer.getBrokerPool();
    broker = pool.get(Optional.of(pool.getSecurityManager().getSystemSubject()));
    xqueryPool = pool.getXQueryPool();
    stringSource = new StringSource(TEST_XQUERY_SOURCE);
    final XQuery xquery = pool.getXQueryService();
    final XQueryContext context = new XQueryContext(broker.getBrokerPool());
    preCompiledXQuery = xquery.compile(context, stringSource);
}

Example 23 with XQueryContext

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

the class DebuggeeJointImpl method evalution.

@Override
public String evalution(String script) throws Exception {
    Database db = compiledXQuery.getContext().getDatabase();
    // TODO: account required
    try (final DBBroker broker = db.getBroker()) {
        XQueryContext context = compiledXQuery.getContext().copyContext();
        context.setDebuggeeJoint(null);
        context.undeclareGlobalVariable(Debuggee.SESSION);
        context.undeclareGlobalVariable(Debuggee.IDEKEY);
        XQuery service = broker.getBrokerPool().getXQueryService();
        CompiledXQuery compiled = service.compile(broker, context, script);
        Sequence resultSequence = service.execute(broker, compiled, null);
        SAXSerializer sax = null;
        Serializer serializer = broker.getSerializer();
        serializer.reset();
        try {
            sax = (SAXSerializer) SerializerPool.getInstance().borrowObject(SAXSerializer.class);
            Properties outputProps = new Properties();
            StringWriter writer = new StringWriter();
            sax.setOutput(writer, outputProps);
            serializer.setSAXHandlers(sax, sax);
            for (SequenceIterator i = resultSequence.iterate(); i.hasNext(); ) {
                Item next = i.nextItem();
                if (Type.subTypeOf(next.getType(), Type.NODE))
                    serializer.toSAX((NodeValue) next);
                else
                    writer.write(next.getStringValue());
            }
            return writer.toString();
        } finally {
            if (sax != null) {
                SerializerPool.getInstance().returnObject(sax);
            }
        }
    }
}

Example 24 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 25 with XQueryContext

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

the class DebuggeeImpl method joint.

public boolean joint(CompiledXQuery compiledXQuery) {
    synchronized (this) {
        IoSession session = connection.connect();
        if (session == null)
            return false;
        // link debugger session & script
        DebuggeeJointImpl joint = new DebuggeeJointImpl();
        joint.setCompiledScript(compiledXQuery);
        XQueryContext context = compiledXQuery.getContext();
        context.setDebuggeeJoint(joint);
        String idesession = "";
        if (context.isVarDeclared(Debuggee.SESSION)) {
            try {
                Variable var = context.resolveVariable(Debuggee.SESSION);
                idesession = var.getValue().toString();
            } catch (XPathException e) {
            }
        }
        String idekey = "";
        if (context.isVarDeclared(Debuggee.IDEKEY)) {
            try {
                Variable var = context.resolveVariable(Debuggee.IDEKEY);
                idekey = var.getValue().toString();
            } catch (XPathException e) {
            }
        }
        joint.continuation(new Init(session, idesession, idekey));
        return true;
    }
}