Examples of org.xml.sax.Locator

org.xml.sax.Locator
axproject.org'>http://www.saxproject.org for further information.
If a SAX parser provides location information to the SAX application, it does so by implementing this interface and then passing an instance to the application using the content handler's {@link org.xml.sax.ContentHandler#setDocumentLocator setDocumentLocator} method. The application can use theobject to obtain the location of any other SAX event in the XML source document.

Note that the results returned by the object will be valid only during the scope of each callback method: the application will receive unpredictable results if it attempts to use the locator at any other time, or after parsing completes.

SAX parsers are not required to supply a locator, but they are very strongly encouraged to do so. If the parser supplies a locator, it must do so before reporting any other document events. If no locator has been set by the time the application receives the {@link org.xml.sax.ContentHandler#startDocument startDocument}event, the application should assume that a locator is not available.
@since SAX 1.0 @author David Megginson @version 2.0.1 (sax2r2) @see org.xml.sax.ContentHandler#setDocumentLocator


        cup.setNextProcess(process);
        cup.startProcess();


        XMLPipelineContext context = pipeline.getPipelineContext();
        Locator playLocator = player.getLocator();
        context.pushLocator(playLocator);
        manager = context.getFlowControlManager();
        try {
            player.setContentHandler(cup);
            player.setFlowController(this);
            player.play();
        } catch (SAXException x) {
            // Catching, logging and re-throwing because this exception may get lost
            // in case of IllegalStateException thrown inside finally
            logger.error(x);
            throw x;
        } finally {
            manager = null;


            Locator poppedLocator = (Locator) context.popLocator();
            if (poppedLocator != playLocator) {
                if (logger.isDebugEnabled()) {
                    String pushed = (null != playLocator) ? playLocator.getPublicId() : "null";
                    String popped = (null != poppedLocator) ? poppedLocator.getPublicId() : "null";
                    logger.debug("Popped locator does not match pushed locator." +
                            " Pushed: " + pushed +
                            " Popped: " + popped);
                }
                throw new IllegalStateException(

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                    }
                }
                catch (Exception e) {
                    // something went wrong when evaluating the xpath.
                    // Send an error down the pipeline
                    Locator locator = pipelineContext.getCurrentLocator();
                    XMLPipelineException se = new XMLPipelineException(
                            "Could not evaluate the expression " +
                            expressionStr,
                            locator,
                            e);

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        // Each request has a single operation and a single message. Both
        // of these should have been set as properties in the pipeline context
        // by the time we get here.
        XMLPipelineContext context = getPipelineContext();
        if (!context.inErrorRecoveryMode()) {
            Locator locator = context.getCurrentLocator();


            Operation operation =
                    (Operation)context.getProperty(Operation.class);
            if (operation == null) {
                String errorMessage =

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    }


    // javadoc inherited from superclass
    public String getPublicId() {
        if (systemIdMatchesBaseURL()) {
            Locator locator = getCurrentLocator();
            return (locator != null) ? locator.getPublicId() : null;
        } else {
            return null;
        }
    }

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        return baseAsString == null ? locatorSystemId == null :
                baseAsString.equals(locatorSystemId);
    }


    private String getLocatorSystemId() {
        Locator locator = getCurrentLocator();
        return (locator != null) ? locator.getSystemId() : null;
    }

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    }


    // javadoc inherited from superclass
    public int getLineNumber() {
        if (systemIdMatchesBaseURL()) {
            Locator locator = getCurrentLocator();
            return (locator != null) ? locator.getLineNumber()
                    : LINE_UNAVAILABLE;
        } else {
            return LINE_UNAVAILABLE;
        }
    }

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    }


    // javadoc inherited from superclass
    public int getColumnNumber() {
        if (systemIdMatchesBaseURL()) {
            Locator locator = getCurrentLocator();
            return (locator != null) ? locator.getColumnNumber()
                    : COLUMN_UNAVAILABLE;
        } else {
            return COLUMN_UNAVAILABLE;
        }
    }

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        XMLPipelineContext context = getPipelineContext();


        // All elements should be in a different namespace from the
        // message.
        if (getProcessNamespaceURI().equals(namespace)) {
            Locator locator = context.getCurrentLocator();
            String message = "Message parts must be in a different " +
                    "namespace from the message";
            fatalError(new XMLStreamingException(message, locator));
        }

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        // All elements should be in a different namespace from the
        // message.
        if (getProcessNamespaceURI().equals(namespace)) {
            XMLPipelineContext context = getPipelineContext();
            Locator locator = context.getCurrentLocator();
            String message = "Message parts must be in a different " +
                    "namespace from the message";
            fatalError(new XMLStreamingException(message, locator));
        }


        nestedElementLevel--;


        if (nestedElementLevel == 0) {
            // This must be the end of the current part.
            if (!currentPart.getName().equals(localName)) {
                // This should never happen because the document is supposed
                // to be valid before it reaches this process....But just in
                // case.
                XMLPipelineContext context = getPipelineContext();
                Locator locator = context.getCurrentLocator();
                String message = "Parts out of sync. Current part is " +
                        currentPart.getName() + " current endElement is " +
                        localName;
                fatalError(new XMLStreamingException(message, locator));
            }

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            throws SAXException {


        // todo encode the characters
        if (nestedElementLevel == 0 && !isWhitespace(buffer, start, offset)) {
            XMLPipelineContext context = getPipelineContext();
            Locator locator = context.getCurrentLocator();
            String message = "No part seems to be associated with these " +
                    "characters since nestedElementLevel is 0";
            fatalError(new XMLStreamingException(message, locator));
        } else if (nestedElementLevel != 0) {
            partValueBuffer.append(buffer, start, offset);

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