Examples of org.pdf4j.saxon.Configuration

org.pdf4j.saxon.Configuration
This class holds details of user-selected configuration options for a set of transformations and/or queries. When running XSLT, the preferred way of setting configuration options is via the JAXP TransformerFactory interface, but the Configuration object provides a finer level of control. As yet there is no standard API for XQuery, so the only way of setting Configuration information is to use the methods on this class directly.

As well as holding configuration settings, this class acts as a factory for classes providing service in particular areas: error handling, URI resolution, and the like. Some of these services are chosen on the basis of the current platform (Java or .NET), some vary depending whether the environment is schema-aware or not.

The Configuration provides access to a {@link NamePool} which is used to manageall the names used in stylesheets, queries, schemas, and source and documents: the NamePool allocates integer codes to these names allowing efficient storage and comparison. Normally there will be a one-to-one relationship between a NamePool and a Configuration. It is possible, however, for several Configuration objects to share the same NamePool. Until Saxon 8.9, by default all Configuration objects shared a single NamePool unless configured otherwise; this changed in 8.9 so that the default is to allocate a new NamePool for each Configuration.

The Configuration establishes the scope within which node identity is managed. Every document belongs to a Configuration, and every node has a distinct identity within that Configuration. In consequence, it is not possible for any query or transformation to manipulate multiple documents unless they all belong to the same Configuration.

Saxon-SA has a subclass of the Configuration class which provides the additional services needed for schema-aware processing. The {@link com.saxonica.validate.SchemaAwareConfiguration}also holds a cache of loaded schema components used for compiling schema-aware transformations and queries, and for validating instance documents.

Since Saxon 8.4, the JavaDoc documentation for Saxon attempts to identify interfaces that are considered stable, and will only be changed in a backwards-incompatible way if there is an overriding reason to do so. These interfaces and methods are labelled with the JavaDoc "since" tag. The value 8.n indicates a method in this category that was introduced in Saxon version 8.n: or in the case of 8.4, that was present in Saxon 8.4 and possibly in earlier releases. (In some cases, these methods have been unchanged for a long time.) Methods without a "since" tag, although public, are provided for internal use or for use by advanced users, and are subject to change from one release to the next. The presence of a "since" tag on a class or interface indicates that there are one or more methods in the class that are considered stable; it does not mean that all methods are stable. @since 8.4

     * @throws SaxonApiException if the schema does not contain a global element declaration
     * for the given name
     */


    public ItemType getElementTest(QName name, QName schemaType, boolean nillable) throws SaxonApiException {
        Configuration config = processor.getUnderlyingConfiguration();
        NameTest nameTest = null;
        ContentTypeTest contentTest = null;
        if (name != null) {
            int elementFP = config.getNamePool().allocate("", name.getNamespaceURI(), name.getLocalName());
            nameTest = new NameTest(Type.ELEMENT, elementFP, config.getNamePool());
        }
        if (schemaType != null) {
            int typeFP = config.getNamePool().allocate("", schemaType.getNamespaceURI(), schemaType.getLocalName());
            SchemaType type = config.getSchemaType(typeFP);
            if (type == null) {
                throw new SaxonApiException("Unknown schema type " + schemaType.getClarkName());
            }
            contentTest = new ContentTypeTest(Type.ELEMENT, type, config);
            contentTest.setNillable(nillable);

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     * @throws SaxonApiException if the schema does not contain a global attribute declaration
     * for the given name
     */


    public ItemType getSchemaAttributeTest(QName name) throws SaxonApiException {
        Configuration config = processor.getUnderlyingConfiguration();
        int fingerprint = config.getNamePool().allocate("", name.getNamespaceURI(), name.getLocalName());
        SchemaDeclaration decl = config.getAttributeDeclaration(fingerprint);
        if (decl == null) {
            throw new SaxonApiException("No global declaration found for attribute " + name.getClarkName());
        }
        CombinedNodeTest combo = new CombinedNodeTest(
                new NameTest(Type.ATTRIBUTE, fingerprint, config.getNamePool()),
                Token.INTERSECT,
                new ContentTypeTest(Type.ATTRIBUTE, decl.getType(), config));
        combo.setGlobalComponentTest(true);
        return new ItemType(combo, processor);
    }

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     */


    public ItemType getAttributeTest(QName name, QName schemaType) throws SaxonApiException {
        NameTest nameTest = null;
        ContentTypeTest contentTest = null;
        Configuration config = processor.getUnderlyingConfiguration();
        if (name != null) {
            int attributeFP = config.getNamePool().allocate("", name.getNamespaceURI(), name.getLocalName());
            nameTest = new NameTest(Type.ATTRIBUTE, attributeFP, config.getNamePool());
        }
        if (schemaType != null) {
            int typeFP = config.getNamePool().allocate("", schemaType.getNamespaceURI(), schemaType.getLocalName());
            SchemaType type = config.getSchemaType(typeFP);
            if (type == null) {
                throw new SaxonApiException("Unknown schema type " + schemaType.getClarkName());
            }
            contentTest = new ContentTypeTest(Type.ATTRIBUTE, type, config);
        }

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     * @param item the supplied item whose type is required
     * @return the type of the supplied item
     */


    public ItemType getItemType(XdmItem item) {
        Configuration config = processor.getUnderlyingConfiguration();
        if (item.isAtomicValue()) {
            AtomicValue value = (AtomicValue)item.getUnderlyingValue();


            AtomicType type = (AtomicType)value.getItemType(config.getTypeHierarchy());
            return new ItemType(type, processor);
        } else {
            NodeInfo node = (NodeInfo)item.getUnderlyingValue();
            int kind = node.getNodeKind();
            int fp = node.getFingerprint();
            if (fp == -1) {
                return new ItemType(NodeKindTest.makeNodeKindTest(kind), processor);
            } else {
                return new ItemType(new NameTest(kind, fp, config.getNamePool()), processor);
            }
        }
    }

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     * of the compiled stylesheet
     * @since 9.1
     */


    public void explain(Destination destination) throws SaxonApiException {
        Configuration config = processor.getUnderlyingConfiguration();
        pss.explain(new ExpressionPresenter(config, destination.getReceiver(config)));
    }

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    public Expression preEvaluate(ExpressionVisitor visitor) throws XPathException {
        String lexicalQName = ((Literal)argument[0]).getValue().getStringValue();
        StaticContext env = visitor.getStaticContext();
        boolean b = false;
        Configuration config = visitor.getConfiguration();
        switch(operation) {
            case ELEMENT_AVAILABLE:
                b = ((XSLTStaticContext)env).isElementAvailable(lexicalQName);
                break;
            case FUNCTION_AVAILABLE:
                long arity = -1;
                if (argument.length == 2) {
                    arity = ((NumericValue)argument[1].evaluateItem(env.makeEarlyEvaluationContext())).longValue();
                }
                try {
                    String[] parts = config.getNameChecker().getQNameParts(lexicalQName);
                    String prefix = parts[0];
                    String uri;
                    if (prefix.length() == 0) {
                        uri = env.getDefaultFunctionNamespace();
                    } else {
                        uri = env.getURIForPrefix(prefix);
                    }
                    StructuredQName functionName = new StructuredQName(prefix, uri, parts[1]);
                    b = env.getFunctionLibrary().isAvailable(functionName, (int)arity);
                } catch (QNameException e) {
                    XPathException err = new XPathException(e.getMessage());
                    err.setErrorCode("XTDE1400");
                    throw err;
                }
                break;
            case TYPE_AVAILABLE:
                try {
                    String[] parts = config.getNameChecker().getQNameParts(lexicalQName);
                    String prefix = parts[0];
                    String uri;
                    if (prefix.length() == 0) {
                        uri = env.getDefaultElementNamespace();
                    } else {
                        uri = env.getURIForPrefix(prefix);
                    }
                    if (uri.equals(NamespaceConstant.JAVA_TYPE)) {
                        try {
                            config.getClass(parts[1], false, null);
                            b = true;
                        } catch (XPathException err) {
                            b = false;
                        }
                    } else {
                        int fingerprint = config.getNamePool().allocate(prefix, uri, parts[1]) & 0xfffff;
                        SchemaType type = config.getSchemaType(fingerprint);
                        if (type instanceof BuiltInAtomicType) {
                            b = env.isAllowedBuiltInType((BuiltInAtomicType)type);
                        } else if (type instanceof BuiltInListType) {
                            b = config.isSchemaAware(Configuration.XSLT);
                        } else {
                            b = (type != null && (uri.equals(NamespaceConstant.SCHEMA) || env.isImportedSchema(uri)));
                        }
                    }
                } catch (QNameException e) {

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        // Note: this requires the compile-time classes to be available at run-time; it will need
        // changing if we ever want to build a run-time JAR file.


        try {
            if (styleNodeFactory==null) {
                Configuration config = context.getConfiguration();
                styleNodeFactory = new StyleNodeFactory(config, context.getController().getErrorListener());
            }
            return styleNodeFactory.isElementAvailable(uri, localname);
        } catch (Exception err) {
            //err.printStackTrace();

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                namespace = "";
            } else {
                namespace = namespace.trim();
            }
            PreparedStylesheet preparedStylesheet = getPreparedStylesheet();
            Configuration config = preparedStylesheet.getConfiguration();
            if (!config.isSchemaAware(Configuration.XSLT)) {
                compileError("To use xsl:import-schema, you need the schema-aware " +
                        "version of Saxon from http://www.saxonica.com/", "XTSE1650");
                return;
            }
            AxisIterator kids = iterateAxis(Axis.CHILD);
            NodeInfo inlineSchema = null;
            while (true) {
                Item child = kids.next();
                if (child==null) {
                    break;
                }
                if (inlineSchema != null) {
                    compileError(getDisplayName() + " must not have more than one child element");
                }
                inlineSchema = (NodeInfo)child;
                if (inlineSchema.getFingerprint() != StandardNames.XS_SCHEMA) {
                    compileError("The only child element permitted for " + getDisplayName() + " is xs:schema");
                }
                if (schemaLoc != null) {
                    compileError("The schema-location attribute must be absent if an inline schema is present");
                }


                namespace = config.readInlineSchema(inlineSchema, namespace, preparedStylesheet.getErrorListener());
                getPrincipalStylesheet().addImportedSchema(namespace);
            }
            if (inlineSchema != null) {
                return;
            }
            if (!config.isSchemaAvailable(namespace)) {
                if (schemaLoc == null) {
                    compileWarning("No schema for this namespace is known, " +
                            "and no schema-location was supplied, so no schema has been imported",
                            SaxonErrorCode.SXWN9006);
                    return;
                }
                PipelineConfiguration pipe = config.makePipelineConfiguration();
                namespace = config.readSchema(pipe, getBaseURI(), schemaLoc, namespace);
            }
            getPrincipalStylesheet().addImportedSchema(namespace);
        } catch (SchemaException err) {
            compileError(err.getMessage(), "XTSE0220");
        } catch (TransformerConfigurationException err) {

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    public ItemType getItemType(TypeHierarchy th) {
        if (typeLabel.equals(BuiltInAtomicType.ANY_ATOMIC)) {
            if (th == null) {
                throw new NullPointerException("No TypeHierarchy supplied");
            } else {
                Configuration config = th.getConfiguration();
                typeLabel = new ExternalObjectType(value.getClass(), config);
            }
        }
        return typeLabel;
    }

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    short startLevel = tree.depth[nodeNr];
    boolean first = true;
        boolean disallowNamespaceSensitiveContent =
                whichNamespaces == NO_NAMESPACES &&
                copyAnnotations;
        Configuration config = null;
    int next = nodeNr;
        boolean setLocation = (receiver instanceof CopyInformee);


    // document.diagnosticDump();

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