Examples with DTM org.apache.xml.dtm.DTM used on opensource projects

Example 56 with DTM

use of org.apache.xml.dtm.DTM in project j2objc by google.

the class ElemApplyTemplates method transformSelectedNodes.

/**
   * Perform a query if needed, and call transformNode for each child.
   *
   * @param transformer non-null reference to the the current transform-time state.
   *
   * @throws TransformerException Thrown in a variety of circumstances.
   * @xsl.usage advanced
   */
public void transformSelectedNodes(TransformerImpl transformer) throws TransformerException {
    final XPathContext xctxt = transformer.getXPathContext();
    final int sourceNode = xctxt.getCurrentNode();
    DTMIterator sourceNodes = m_selectExpression.asIterator(xctxt, sourceNode);
    VariableStack vars = xctxt.getVarStack();
    int nParams = getParamElemCount();
    int thisframe = vars.getStackFrame();
    boolean pushContextNodeListFlag = false;
    try {
        xctxt.pushCurrentNode(DTM.NULL);
        xctxt.pushCurrentExpressionNode(DTM.NULL);
        xctxt.pushSAXLocatorNull();
        transformer.pushElemTemplateElement(null);
        final Vector keys = (m_sortElems == null) ? null : transformer.processSortKeys(this, sourceNode);
        // Sort if we need to.
        if (null != keys)
            sourceNodes = sortNodes(xctxt, keys, sourceNodes);
        final SerializationHandler rth = transformer.getSerializationHandler();
        //      ContentHandler chandler = rth.getContentHandler();
        final StylesheetRoot sroot = transformer.getStylesheet();
        final TemplateList tl = sroot.getTemplateListComposed();
        final boolean quiet = transformer.getQuietConflictWarnings();
        // Should be able to get this from the iterator but there must be a bug.
        DTM dtm = xctxt.getDTM(sourceNode);
        int argsFrame = -1;
        if (nParams > 0) {
            // This code will create a section on the stack that is all the 
            // evaluated arguments.  These will be copied into the real params 
            // section of each called template.
            argsFrame = vars.link(nParams);
            vars.setStackFrame(thisframe);
            for (int i = 0; i < nParams; i++) {
                ElemWithParam ewp = m_paramElems[i];
                XObject obj = ewp.getValue(transformer, sourceNode);
                vars.setLocalVariable(i, obj, argsFrame);
            }
            vars.setStackFrame(argsFrame);
        }
        xctxt.pushContextNodeList(sourceNodes);
        pushContextNodeListFlag = true;
        IntStack currentNodes = xctxt.getCurrentNodeStack();
        IntStack currentExpressionNodes = xctxt.getCurrentExpressionNodeStack();
        // pushParams(transformer, xctxt);
        int child;
        while (DTM.NULL != (child = sourceNodes.nextNode())) {
            currentNodes.setTop(child);
            currentExpressionNodes.setTop(child);
            if (xctxt.getDTM(child) != dtm) {
                dtm = xctxt.getDTM(child);
            }
            final int exNodeType = dtm.getExpandedTypeID(child);
            final int nodeType = dtm.getNodeType(child);
            final QName mode = transformer.getMode();
            ElemTemplate template = tl.getTemplateFast(xctxt, child, exNodeType, mode, -1, quiet, dtm);
            // See http://www.w3.org/TR/xslt#built-in-rule.
            if (null == template) {
                switch(nodeType) {
                    case DTM.DOCUMENT_FRAGMENT_NODE:
                    case DTM.ELEMENT_NODE:
                        template = sroot.getDefaultRule();
                        // %OPT% direct faster?
                        break;
                    case DTM.ATTRIBUTE_NODE:
                    case DTM.CDATA_SECTION_NODE:
                    case DTM.TEXT_NODE:
                        // if(rth.m_elemIsPending || rth.m_docPending)
                        //  rth.flushPending(true);
                        transformer.pushPairCurrentMatched(sroot.getDefaultTextRule(), child);
                        transformer.setCurrentElement(sroot.getDefaultTextRule());
                        // dtm.dispatchCharactersEvents(child, chandler, false);
                        dtm.dispatchCharactersEvents(child, rth, false);
                        transformer.popCurrentMatched();
                        continue;
                    case DTM.DOCUMENT_NODE:
                        template = sroot.getDefaultRootRule();
                        break;
                    default:
                        // No default rules for processing instructions and the like.
                        continue;
                }
            } else {
                transformer.setCurrentElement(template);
            }
            transformer.pushPairCurrentMatched(template, child);
            // See comment with unlink, below
            int currentFrameBottom;
            if (template.m_frameSize > 0) {
                xctxt.pushRTFContext();
                // See comment with unlink, below
                currentFrameBottom = vars.getStackFrame();
                vars.link(template.m_frameSize);
                // xsl:params might not be nulled.
                if (/* nParams > 0 && */
                template.m_inArgsSize > 0) {
                    int paramIndex = 0;
                    for (ElemTemplateElement elem = template.getFirstChildElem(); null != elem; elem = elem.getNextSiblingElem()) {
                        if (Constants.ELEMNAME_PARAMVARIABLE == elem.getXSLToken()) {
                            ElemParam ep = (ElemParam) elem;
                            int i;
                            for (i = 0; i < nParams; i++) {
                                ElemWithParam ewp = m_paramElems[i];
                                if (ewp.m_qnameID == ep.m_qnameID) {
                                    XObject obj = vars.getLocalVariable(i, argsFrame);
                                    vars.setLocalVariable(paramIndex, obj);
                                    break;
                                }
                            }
                            if (i == nParams)
                                vars.setLocalVariable(paramIndex, null);
                        } else
                            break;
                        paramIndex++;
                    }
                }
            } else
                currentFrameBottom = 0;
            // each of them.
            for (ElemTemplateElement t = template.m_firstChild; t != null; t = t.m_nextSibling) {
                xctxt.setSAXLocator(t);
                try {
                    transformer.pushElemTemplateElement(t);
                    t.execute(transformer);
                } finally {
                    transformer.popElemTemplateElement();
                }
            }
            if (template.m_frameSize > 0) {
                // See Frank Weiss bug around 03/19/2002 (no Bugzilla report yet).
                // While unlink will restore to the proper place, the real position 
                // may have been changed for xsl:with-param, so that variables 
                // can be accessed.  
                // of right now.
                // More:
                // When we entered this function, the current 
                // frame buffer (cfb) index in the variable stack may 
                // have been manually set.  If we just call 
                // unlink(), however, it will restore the cfb to the 
                // previous link index from the link stack, rather than 
                // the manually set cfb.  So, 
                // the only safe solution is to restore it back 
                // to the same position it was on entry, since we're 
                // really not working in a stack context here. (Bug4218)
                vars.unlink(currentFrameBottom);
                xctxt.popRTFContext();
            }
            transformer.popCurrentMatched();
        }
    // end while (DTM.NULL != (child = sourceNodes.nextNode()))
    } catch (SAXException se) {
        transformer.getErrorListener().fatalError(new TransformerException(se));
    } finally {
        // Unlink to the original stack frame
        if (nParams > 0)
            vars.unlink(thisframe);
        xctxt.popSAXLocator();
        if (pushContextNodeListFlag)
            xctxt.popContextNodeList();
        transformer.popElemTemplateElement();
        xctxt.popCurrentExpressionNode();
        xctxt.popCurrentNode();
        sourceNodes.detach();
    }
}

Example 57 with DTM

use of org.apache.xml.dtm.DTM in project j2objc by google.

the class ElemCopyOf method execute.

/**
   * The xsl:copy-of element can be used to insert a result tree
   * fragment into the result tree, without first converting it to
   * a string as xsl:value-of does (see [7.6.1 Generating Text with
   * xsl:value-of]).
   *
   * @param transformer non-null reference to the the current transform-time state.
   *
   * @throws TransformerException
   */
public void execute(TransformerImpl transformer) throws TransformerException {
    try {
        XPathContext xctxt = transformer.getXPathContext();
        int sourceNode = xctxt.getCurrentNode();
        XObject value = m_selectExpression.execute(xctxt, sourceNode, this);
        SerializationHandler handler = transformer.getSerializationHandler();
        if (null != value) {
            int type = value.getType();
            String s;
            switch(type) {
                case XObject.CLASS_BOOLEAN:
                case XObject.CLASS_NUMBER:
                case XObject.CLASS_STRING:
                    s = value.str();
                    handler.characters(s.toCharArray(), 0, s.length());
                    break;
                case XObject.CLASS_NODESET:
                    // System.out.println(value);
                    DTMIterator nl = value.iter();
                    // Copy the tree.
                    DTMTreeWalker tw = new TreeWalker2Result(transformer, handler);
                    int pos;
                    while (DTM.NULL != (pos = nl.nextNode())) {
                        DTM dtm = xctxt.getDTMManager().getDTM(pos);
                        short t = dtm.getNodeType(pos);
                        // generated, so we need to only walk the child nodes.
                        if (t == DTM.DOCUMENT_NODE) {
                            for (int child = dtm.getFirstChild(pos); child != DTM.NULL; child = dtm.getNextSibling(child)) {
                                tw.traverse(child);
                            }
                        } else if (t == DTM.ATTRIBUTE_NODE) {
                            SerializerUtils.addAttribute(handler, pos);
                        } else {
                            tw.traverse(pos);
                        }
                    }
                    // nl.detach();
                    break;
                case XObject.CLASS_RTREEFRAG:
                    SerializerUtils.outputResultTreeFragment(handler, value, transformer.getXPathContext());
                    break;
                default:
                    s = value.str();
                    handler.characters(s.toCharArray(), 0, s.length());
                    break;
            }
        }
    // I don't think we want this.  -sb
    //  if (transformer.getDebug())
    //  transformer.getTraceManager().fireSelectedEvent(sourceNode, this,
    //  "endSelect", m_selectExpression, value);
    } catch (org.xml.sax.SAXException se) {
        throw new TransformerException(se);
    }
}

Example 58 with DTM

use of org.apache.xml.dtm.DTM in project j2objc by google.

the class TransformerImpl method applyTemplateToNode.

/**
   * Given an element and mode, find the corresponding
   * template and process the contents.
   *
   * @param xslInstruction The calling element.
   * @param template The template to use if xsl:for-each, current template for apply-imports, or null.
   * @param child The source context node.
   * @throws TransformerException
   * @return true if applied a template, false if not.
   * @xsl.usage advanced
   */
public // xsl:apply-templates or xsl:for-each
boolean applyTemplateToNode(// xsl:apply-templates or xsl:for-each
ElemTemplateElement xslInstruction, ElemTemplate template, int child) throws TransformerException {
    DTM dtm = m_xcontext.getDTM(child);
    short nodeType = dtm.getNodeType(child);
    boolean isDefaultTextRule = false;
    boolean isApplyImports = false;
    isApplyImports = ((xslInstruction == null) ? false : xslInstruction.getXSLToken() == Constants.ELEMNAME_APPLY_IMPORTS);
    if (null == template || isApplyImports) {
        int maxImportLevel, endImportLevel = 0;
        if (isApplyImports) {
            maxImportLevel = template.getStylesheetComposed().getImportCountComposed() - 1;
            endImportLevel = template.getStylesheetComposed().getEndImportCountComposed();
        } else {
            maxImportLevel = -1;
        }
        // We want to match -no- templates. See bugzilla bug 1170.
        if (isApplyImports && (maxImportLevel == -1)) {
            template = null;
        } else {
            // Find the XSL template that is the best match for the 
            // element.        
            XPathContext xctxt = m_xcontext;
            try {
                xctxt.pushNamespaceContext(xslInstruction);
                QName mode = this.getMode();
                if (isApplyImports)
                    template = m_stylesheetRoot.getTemplateComposed(xctxt, child, mode, maxImportLevel, endImportLevel, m_quietConflictWarnings, dtm);
                else
                    template = m_stylesheetRoot.getTemplateComposed(xctxt, child, mode, m_quietConflictWarnings, dtm);
            } finally {
                xctxt.popNamespaceContext();
            }
        }
        // See http://www.w3.org/TR/xslt#built-in-rule.
        if (null == template) {
            switch(nodeType) {
                case DTM.DOCUMENT_FRAGMENT_NODE:
                case DTM.ELEMENT_NODE:
                    template = m_stylesheetRoot.getDefaultRule();
                    break;
                case DTM.CDATA_SECTION_NODE:
                case DTM.TEXT_NODE:
                case DTM.ATTRIBUTE_NODE:
                    template = m_stylesheetRoot.getDefaultTextRule();
                    isDefaultTextRule = true;
                    break;
                case DTM.DOCUMENT_NODE:
                    template = m_stylesheetRoot.getDefaultRootRule();
                    break;
                default:
                    // No default rules for processing instructions and the like.
                    return false;
            }
        }
    }
    // the value directly to the result tree.
    try {
        pushElemTemplateElement(template);
        m_xcontext.pushCurrentNode(child);
        pushPairCurrentMatched(template, child);
        // Fix copy copy29 test.
        if (!isApplyImports) {
            DTMIterator cnl = new org.apache.xpath.NodeSetDTM(child, m_xcontext.getDTMManager());
            m_xcontext.pushContextNodeList(cnl);
        }
        if (isDefaultTextRule) {
            switch(nodeType) {
                case DTM.CDATA_SECTION_NODE:
                case DTM.TEXT_NODE:
                    ClonerToResultTree.cloneToResultTree(child, nodeType, dtm, getResultTreeHandler(), false);
                    break;
                case DTM.ATTRIBUTE_NODE:
                    dtm.dispatchCharactersEvents(child, getResultTreeHandler(), false);
                    break;
            }
        } else {
            // And execute the child templates.
            // 9/11/00: If template has been compiled, hand off to it
            // since much (most? all?) of the processing has been inlined.
            // (It would be nice if there was a single entry point that
            // worked for both... but the interpretive system works by
            // having the Tranformer execute the children, while the
            // compiled obviously has to run its own code. It's
            // also unclear that "execute" is really the right name for
            // that entry point.)
            m_xcontext.setSAXLocator(template);
            // m_xcontext.getVarStack().link();
            m_xcontext.getVarStack().link(template.m_frameSize);
            executeChildTemplates(template, true);
        }
    } catch (org.xml.sax.SAXException se) {
        throw new TransformerException(se);
    } finally {
        if (!isDefaultTextRule)
            m_xcontext.getVarStack().unlink();
        m_xcontext.popCurrentNode();
        if (!isApplyImports) {
            m_xcontext.popContextNodeList();
        }
        popCurrentMatched();
        popElemTemplateElement();
    }
    return true;
}

Example 59 with DTM

use of org.apache.xml.dtm.DTM in project j2objc by google.

the class TransformerImpl method transform.

/**
   * Process the source tree to SAX parse events.
   * @param source  The input for the source tree.
   * @param shouldRelease  Flag indicating whether to release DTMManager.
   *
   * @throws TransformerException
   */
public void transform(Source source, boolean shouldRelease) throws TransformerException {
    try {
        // here or in reset(). -is  
        if (getXPathContext().getNamespaceContext() == null) {
            getXPathContext().setNamespaceContext(getStylesheet());
        }
        String base = source.getSystemId();
        // If no systemID of the source, use the base of the stylesheet.
        if (null == base) {
            base = m_stylesheetRoot.getBaseIdentifier();
        }
        // As a last resort, use the current user dir.
        if (null == base) {
            String currentDir = "";
            try {
                currentDir = System.getProperty("user.dir");
            }// user.dir not accessible from applet
             catch (SecurityException se) {
            }
            if (currentDir.startsWith(java.io.File.separator))
                base = "file://" + currentDir;
            else
                base = "file:///" + currentDir;
            base = base + java.io.File.separatorChar + source.getClass().getName();
        }
        setBaseURLOfSource(base);
        DTMManager mgr = m_xcontext.getDTMManager();
        /*
       * According to JAXP1.2, new SAXSource()/StreamSource()
       * should create an empty input tree, with a default root node. 
       * new DOMSource()creates an empty document using DocumentBuilder.
       * newDocument(); Use DocumentBuilder.newDocument() for all 3 situations,
       * since there is no clear spec. how to create an empty tree when
       * both SAXSource() and StreamSource() are used.
       */
        if ((source instanceof StreamSource && source.getSystemId() == null && ((StreamSource) source).getInputStream() == null && ((StreamSource) source).getReader() == null) || (source instanceof SAXSource && ((SAXSource) source).getInputSource() == null && ((SAXSource) source).getXMLReader() == null) || (source instanceof DOMSource && ((DOMSource) source).getNode() == null)) {
            try {
                DocumentBuilderFactory builderF = DocumentBuilderFactory.newInstance();
                DocumentBuilder builder = builderF.newDocumentBuilder();
                String systemID = source.getSystemId();
                source = new DOMSource(builder.newDocument());
                // Copy system ID from original, empty Source to new Source
                if (systemID != null) {
                    source.setSystemId(systemID);
                }
            } catch (ParserConfigurationException e) {
                fatalError(e);
            }
        }
        DTM dtm = mgr.getDTM(source, false, this, true, true);
        dtm.setDocumentBaseURI(base);
        // %REVIEW% I have to think about this. -sb
        boolean hardDelete = true;
        try {
            // NOTE: This will work because this is _NOT_ a shared DTM, and thus has
            // only a single Document node. If it could ever be an RTF or other
            // shared DTM, look at dtm.getDocumentRoot(nodeHandle).
            this.transformNode(dtm.getDocument());
        } finally {
            if (shouldRelease)
                mgr.release(dtm, hardDelete);
        }
        // Kick off the parse.  When the ContentHandler gets 
        // the startDocument event, it will call transformNode( node ).
        // reader.parse( xmlSource );
        // This has to be done to catch exceptions thrown from 
        // the transform thread spawned by the STree handler.
        Exception e = getExceptionThrown();
        if (null != e) {
            if (e instanceof javax.xml.transform.TransformerException) {
                throw (javax.xml.transform.TransformerException) e;
            } else if (e instanceof org.apache.xml.utils.WrappedRuntimeException) {
                fatalError(((org.apache.xml.utils.WrappedRuntimeException) e).getException());
            } else {
                throw new javax.xml.transform.TransformerException(e);
            }
        } else if (null != m_serializationHandler) {
            m_serializationHandler.endDocument();
        }
    } catch (org.apache.xml.utils.WrappedRuntimeException wre) {
        Throwable throwable = wre.getException();
        while (throwable instanceof org.apache.xml.utils.WrappedRuntimeException) {
            throwable = ((org.apache.xml.utils.WrappedRuntimeException) throwable).getException();
        }
        fatalError(throwable);
    }// Patch attributed to David Eisenberg <david@catcode.com>
     catch (org.xml.sax.SAXParseException spe) {
        fatalError(spe);
    } catch (org.xml.sax.SAXException se) {
        m_errorHandler.fatalError(new TransformerException(se));
    } finally {
        m_hasTransformThreadErrorCatcher = false;
        // This looks to be redundent to the one done in TransformNode.
        reset();
    }
}

Example 60 with DTM

use of org.apache.xml.dtm.DTM in project j2objc by google.

the class TransformerImpl method transformNode.

/**
   * Process the source node to the output result, if the
   * processor supports the "http://xml.org/trax/features/dom/input"
   * feature.
   * %REVIEW% Do we need a Node version of this?
   * @param node  The input source node, which can be any valid DTM node.
   *
   * @throws TransformerException
   */
public void transformNode(int node) throws TransformerException {
    //dml
    setExtensionsTable(getStylesheet());
    // Make sure we're not writing to the same output content handler.
    synchronized (m_serializationHandler) {
        m_hasBeenReset = false;
        XPathContext xctxt = getXPathContext();
        DTM dtm = xctxt.getDTM(node);
        try {
            pushGlobalVars(node);
            // ==========
            // Give the top-level templates a chance to pass information into 
            // the context (this is mainly for setting up tables for extensions).
            StylesheetRoot stylesheet = this.getStylesheet();
            int n = stylesheet.getGlobalImportCount();
            for (int i = 0; i < n; i++) {
                StylesheetComposed imported = stylesheet.getGlobalImport(i);
                int includedCount = imported.getIncludeCountComposed();
                for (int j = -1; j < includedCount; j++) {
                    Stylesheet included = imported.getIncludeComposed(j);
                    included.runtimeInit(this);
                    for (ElemTemplateElement child = included.getFirstChildElem(); child != null; child = child.getNextSiblingElem()) {
                        child.runtimeInit(this);
                    }
                }
            }
            // ===========        
            // System.out.println("Calling applyTemplateToNode - "+Thread.currentThread().getName());
            DTMIterator dtmIter = new org.apache.xpath.axes.SelfIteratorNoPredicate();
            dtmIter.setRoot(node, xctxt);
            xctxt.pushContextNodeList(dtmIter);
            try {
                this.applyTemplateToNode(null, null, node);
            } finally {
                xctxt.popContextNodeList();
            }
            // System.out.println("Done with applyTemplateToNode - "+Thread.currentThread().getName());
            if (null != m_serializationHandler) {
                m_serializationHandler.endDocument();
            }
        } catch (Exception se) {
            // SAXSourceLocator
            while (se instanceof org.apache.xml.utils.WrappedRuntimeException) {
                Exception e = ((org.apache.xml.utils.WrappedRuntimeException) se).getException();
                if (null != e)
                    se = e;
            }
            if (null != m_serializationHandler) {
                try {
                    if (se instanceof org.xml.sax.SAXParseException)
                        m_serializationHandler.fatalError((org.xml.sax.SAXParseException) se);
                    else if (se instanceof TransformerException) {
                        TransformerException te = ((TransformerException) se);
                        SAXSourceLocator sl = new SAXSourceLocator(te.getLocator());
                        m_serializationHandler.fatalError(new org.xml.sax.SAXParseException(te.getMessage(), sl, te));
                    } else {
                        m_serializationHandler.fatalError(new org.xml.sax.SAXParseException(se.getMessage(), new SAXSourceLocator(), se));
                    }
                } catch (Exception e) {
                }
            }
            if (se instanceof TransformerException) {
                m_errorHandler.fatalError((TransformerException) se);
            } else if (se instanceof org.xml.sax.SAXParseException) {
                m_errorHandler.fatalError(new TransformerException(se.getMessage(), new SAXSourceLocator((org.xml.sax.SAXParseException) se), se));
            } else {
                m_errorHandler.fatalError(new TransformerException(se));
            }
        } finally {
            this.reset();
        }
    }
}