Examples of net.sf.saxon.Controller

net.sf.saxon.Controller
The Controller is Saxon's implementation of the JAXP Transformer class, and represents an executing instance of a transformation or query. Multiple concurrent executions of the same transformation or query will use different Controller instances. This class is therefore not thread-safe.
The Controller is serially reusable, as required by JAXP: when one transformation or query is finished, it can be used to run another. However, there is no advantage in doing this rather than allocating a new Controller each time.
The Controller can also be used when running Java applications that use neither XSLT nor XQuery. A dummy Controller is created when running free-standing XPath expressions.
The Controller holds those parts of the dynamic context that do not vary during the course of a transformation or query, or that do not change once their value has been computed. This also includes those parts of the static context that are required at run-time.
Wherever possible XSLT applications should use the JAXP Transformer class directly, rather than relying on Saxon-specific methods in the Controller. However, some features are currently available only through this class. This applies especially to new features specific to XSLT 2.0, since the JAXP interface still supports only XSLT 1.0. Such methods may be superseded in the future by JAXP methods.
Many methods on the Controller are designed for internal use and should not be considered stable. From release 8.4 onwards, those methods that are considered sufficiently stable to constitute path of the Saxon public API are labelled with the JavaDoc tag "since": the value indicates the release at which the method was added to the public API. @author Michael H. Kay @since 8.4

            same = NodeKindTest.makeNodeKindTest(node.getNodeKind());
        } else {
            same = new NameTest(node);
        }


        Controller controller = (context == null ? null : context.getController());
        AxisIterator preceding = node.iterateAxis(Axis.PRECEDING_SIBLING, same);


        int i = 1;
        while (true) {
            NodeInfo prev = (NodeInfo)preceding.next();
            if (prev == null) {
                break;
            }


            if (controller != null) {
                int memo = controller.getRememberedNumber(prev);
                if (memo > 0) {
                    memo += i;
                    controller.setRememberedNumber(node, memo);
                    return memo;
                }
            }


            i++;
        }


        if (controller != null) {
            controller.setRememberedNumber(node, i);
        }
        return i;
    }

View Full Code Here

    public static int getNumberAny(Expression inst, NodeInfo node, Pattern count,
                                   Pattern from, XPathContext context, boolean hasVariablesInPatterns) throws XPathException {


        NodeInfo memoNode = null;
        int memoNumber = 0;
        Controller controller = context.getController();
        boolean memoise = (!hasVariablesInPatterns) && from==null;
        if (memoise) {
            Object[] memo = (Object[])controller.getUserData(inst, "xsl:number");
            if (memo != null) {
                memoNode = (NodeInfo)memo[0];
                memoNumber = ((Integer)memo[1]).intValue();
            }
        }


        int num = 0;
        if (count == null) {
            if (node.getFingerprint() == -1) {  // unnamed node
                count = new NodeTestPattern(NodeKindTest.makeNodeKindTest(node.getNodeKind()));
            } else {
                count = new NodeTestPattern(new NameTest(node));
            }
            num = 1;
        } else if (count.matches(node, context)) {
            num = 1;
        }


        // We use a special axis invented for the purpose: the union of the preceding and
        // ancestor axes, but in reverse document order


        // Pass part of the filtering down to the axis iterator if possible
        NodeTest filter;
        if (from == null) {
            filter = count.getNodeTest();
        } else if (from.getNodeKind() == Type.ELEMENT && count.getNodeKind() == Type.ELEMENT) {
            filter = NodeKindTest.ELEMENT;
        } else {
            filter = AnyNodeTest.getInstance();
        }


        if (from != null && from.matches(node, context)) {
            return num;
        }


        SequenceIterator preceding =
                node.iterateAxis(Axis.PRECEDING_OR_ANCESTOR, filter);
       
        boolean found = false;
        while (true) {
            NodeInfo prev = (NodeInfo)preceding.next();
            if (prev == null) {
                break;
            }


            if (count.matches(prev, context)) {
                if (num == 1 && memoNode != null && prev.isSameNodeInfo(memoNode)) {
                    num = memoNumber + 1;
                    found = true;
                    break;
                }
                num++;
            }


            if (from != null && from.matches(prev, context)) {
                found = true;
                break;
            }
        }
        if (!found && from != null) {
            // we've got to the end without matching the from pattern - result is ()
            return 0;
        }
        if (memoise) {
            Object[] memo = new Object[2];
            memo[0] = node;
            memo[1] = new Integer(num);
            controller.setUserData(inst, "xsl:number", memo);
        }
        return num;
    }

View Full Code Here

     * the current date and time are taken directly from the system clock
     * @return the current xs:dateTime
     */


    public static DateTimeValue getCurrentDateTime(XPathContext context) {
        Controller c;
        if (context == null || (c = context.getController()) == null) {
            // non-XSLT/XQuery environment
            // We also take this path when evaluating compile-time expressions that require an implicit timezone.
            return new DateTimeValue(new GregorianCalendar(), true);
        } else {
            return c.getCurrentDateTime();
        }
    }

View Full Code Here

            throw new XPathException("Cannot call iterator() on an updating query");
        }
        if (!env.getConfiguration().isCompatible(getExecutable().getConfiguration())) {
            throw new XPathException("The query must be compiled and executed under the same Configuration");
        }
        Controller controller = newController();
        initializeController(env, controller);


        try {
            Item contextItem = env.getContextItem();


            //Bindery bindery = controller.getBindery();
            //bindery.openStackFrame();
            controller.defineGlobalParameters();
            XPathContextMajor context = controller.newXPathContext();


            if (contextItem != null) {
                if (!staticContext.getUserQueryContext().getRequiredContextItemType().matchesItem(
                        contextItem, false, env.getConfiguration())) {
                    throw new XPathException("The supplied context item does not match the required context item type");
                }
                UnfailingIterator single = SingletonIterator.makeIterator(contextItem);
                single.next();
                context.setCurrentIterator(single);
                controller.setInitialContextItem(contextItem);
            }


            // In tracing/debugging mode, evaluate all the global variables first
            if (controller.getTraceListener() != null) {
                controller.preEvaluateGlobals(context);
            }


            context.openStackFrame(stackFrameMap);


            SequenceIterator iterator = expression.iterate(context);
            return new ErrorReportingIterator(iterator, controller.getErrorListener());
        } catch (XPathException err) {
            TransformerException terr = err;
            while (terr.getException() instanceof TransformerException) {
                terr = (TransformerException)terr.getException();
            }
            XPathException de = XPathException.makeXPathException(terr);
            controller.reportFatalError(de);
            throw de;
        }
    }

View Full Code Here

            throw new XPathException("Cannot call run() on an updating query");
        }
        if (!env.getConfiguration().isCompatible(getExecutable().getConfiguration())) {
            throw new XPathException("The query must be compiled and executed under the same Configuration");
        }
        Controller controller = newController();
        initializeController(env, controller);


        if (allowDocumentProjection) {
            controller.setUseDocumentProjection(getPathMap());
        }
        Properties actualProperties = validateOutputProperties(controller, outputProperties);


        //controller.defineGlobalParameters();


        XPathContextMajor context = initialContext(env, controller);


        // In tracing/debugging mode, evaluate all the global variables first
        TraceListener tracer = controller.getTraceListener();
        if (tracer != null) {
            controller.preEvaluateGlobals(context);
            tracer.open();
        }


        context.openStackFrame(stackFrameMap);


        boolean mustClose = (result instanceof StreamResult &&
                ((StreamResult)result).getOutputStream() == null);
        SerializerFactory sf = context.getConfiguration().getSerializerFactory();
        PipelineConfiguration pipe = controller.makePipelineConfiguration();
        pipe.setHostLanguage(Configuration.XQUERY);
        Receiver receiver = sf.getReceiver(result, pipe, actualProperties);
        context.changeOutputDestination(receiver, true,
                Validation.PRESERVE, null);
        context.getReceiver().open();


        // Run the query
        try {
            expression.process(context);
        } catch (XPathException err) {
            controller.reportFatalError(err);
            throw err;
        }


        if (tracer != null) {
            tracer.close();

View Full Code Here

        if (isUpdating) {
            throw new XPathException("Cannot call pull() on an updating query");
        }
        Configuration config = dynamicEnv.getConfiguration();
        try {
            Controller controller = newController();
            //initializeController(dynamicEnv, controller);
            EventIterator iter = iterateEvents(controller, dynamicEnv);
            //iter = new Decomposer(iter, config);


            Properties actualProperties = validateOutputProperties(controller, outputProperties);

View Full Code Here

        if (!isUpdating) {
            throw new XPathException("Calling runUpdate() on a non-updating query");
        }


        Configuration config = executable.getConfiguration();
        Controller controller = newController();
        initializeController(dynamicEnv, controller);
        XPathContextMajor context = initialContext(dynamicEnv, controller);
        try {
            PendingUpdateList pul = config.newPendingUpdateList();
            context.openStackFrame(stackFrameMap);
            expression.evaluatePendingUpdates(context, pul);
            pul.apply(context, staticContext.getRevalidationMode());
            return pul.getAffectedTrees();
            // Only mark a document for rewriting to disk if it is in the document pool,
            // that is, if it was supplied using doc() or similar functions.
// Code deleted as fix to bug 2091267
//            Set rewrittenTrees = new HashSet();
//            for (Iterator iter = pul.getAffectedTrees().iterator(); iter.hasNext();) {
//                NodeInfo node = (NodeInfo)iter.next();
//                if (node.isSameNodeInfo(controller.getDocumentPool().find(node.getSystemId()))) {
//                     rewrittenTrees.add(node);
//                }
//            }
//            return rewrittenTrees;
        } catch (XPathException e) {
            if (!e.hasBeenReported()) {
                try {
                    controller.getErrorListener().fatalError(e);
                } catch (TransformerException e2) {
                    // ignore secondary error
                }
            }
            throw e;

View Full Code Here

        if (!isUpdating) {
            throw new XPathException("Calling runUpdate() on a non-updating query");
        }


        Configuration config = executable.getConfiguration();
        Controller controller = newController();
        initializeController(dynamicEnv, controller);
        XPathContextMajor context = initialContext(dynamicEnv, controller);
        try {
            PendingUpdateList pul = config.newPendingUpdateList();
            context.openStackFrame(stackFrameMap);
            expression.evaluatePendingUpdates(context, pul);
            pul.apply(context, staticContext.getRevalidationMode());
            for (Iterator iter = pul.getAffectedTrees().iterator(); iter.hasNext();) {
                NodeInfo node = (NodeInfo)iter.next();
                agent.update(node, controller);
            }
        } catch (XPathException e) {
            if (!e.hasBeenReported()) {
                try {
                    controller.getErrorListener().fatalError(e);
                } catch (TransformerException e2) {
                    // ignore secondary error
                }
            }
            throw e;

View Full Code Here

     *
     * @return a newly constructed Controller
     */


    public Controller newController() {
        Controller controller = new Controller(executable.getConfiguration(), executable);
        executable.initializeBindery(controller.getBindery());
        if (isUpdating && controller.getModel() == TreeModel.TINY_TREE) {
            controller.setModel(TreeModel.LINKED_TREE);
        }
        return controller;
    }

View Full Code Here

            s.setStripAll();
            s.setPipelineConfiguration(pipe);
            s.setUnderlyingReceiver(receiver);
            next = s;
        } else if (options.getStripSpace() == Whitespace.XSLT) {
            Controller controller = pipe.getController();
            if (controller != null) {
                next = controller.makeStripper(next);
            }
        }


        if (source instanceof NodeInfo) {
            NodeInfo ns = (NodeInfo)source;

View Full Code Here

0 1 2 3 4 5 6 7 8 9

TOP

Related Classes of net.sf.saxon.Controller

com.xmlcalabash.drivers.ValidBaseURITest

com.xmlcalabash.library.ValidateWithXSD

com.xmlcalabash.util.TreeWriter

net.sf.saxon.ant.AntTransform

net.sf.saxon.dom.DocumentWrapper

net.sf.saxon.event.Sender

net.sf.saxon.event.SerializerFactory

net.sf.saxon.event.Stripper

net.sf.saxon.expr.EarlyEvaluationContext

net.sf.saxon.expr.ExpressionTool

All source code are property of their respective owners. Java is a trademark of Sun Microsystems, Inc and owned by ORACLE Inc. Contact coftware#gmail.com.