| /* Copyright 2004 The Apache Software Foundation |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package org.apache.xmlbeans; |
| |
| import org.apache.xmlbeans.impl.schema.BuiltinSchemaTypeSystem; |
| import org.apache.xmlbeans.impl.schema.PathResourceLoader; |
| import org.apache.xmlbeans.impl.schema.SchemaTypeLoaderImpl; |
| import org.apache.xmlbeans.impl.schema.SchemaTypeSystemCompiler; |
| import org.apache.xmlbeans.impl.store.Locale; |
| import org.w3c.dom.Node; |
| |
| import javax.xml.namespace.QName; |
| import javax.xml.stream.XMLStreamReader; |
| import java.io.File; |
| import java.lang.ref.SoftReference; |
| import java.lang.reflect.Field; |
| |
| /** |
| * Provides an assortment of utilities |
| * for managing XML Bean types, type systems, QNames, paths, |
| * and queries. |
| */ |
| public final class XmlBeans { |
| private static final String HOLDER_CLASS_NAME = "TypeSystemHolder"; |
| private static final String TYPE_SYSTEM_FIELD = "typeSystem"; |
| |
| private static String XMLBEANS_TITLE = "org.apache.xmlbeans"; |
| private static String XMLBEANS_VERSION = "4.0.0"; |
| private static String XMLBEANS_VENDOR = "Apache Software Foundation"; |
| |
| static { |
| Package pkg = XmlBeans.class.getPackage(); |
| if (pkg != null && pkg.getImplementationVersion() != null) { |
| XMLBEANS_TITLE = pkg.getImplementationTitle(); |
| XMLBEANS_VERSION = pkg.getImplementationVersion(); |
| XMLBEANS_VENDOR = pkg.getImplementationVendor(); |
| } |
| } |
| |
| /** |
| * Returns the XmlBeans Package title, "org.apache.xmlbeans", |
| * the value of |
| * {@link Package#getImplementationTitle() XmlBeans.class.getPackage().getImplementationTitle()}. |
| */ |
| public static final String getTitle() { |
| return XMLBEANS_TITLE; |
| } |
| |
| /** |
| * Returns the XmlBeans vendor, "Apache Software Foundation", |
| * the value of |
| * {@link Package#getImplementationVendor() XmlBeans.class.getPackage().getImplementationVendor()}. |
| */ |
| public static final String getVendor() { |
| return XMLBEANS_VENDOR; |
| } |
| |
| /** |
| * Returns the XmlBeans version, |
| * the value of |
| * {@link Package#getImplementationVersion() XmlBeans.class.getPackage().getImplementationVersion()}. |
| */ |
| public static final String getVersion() { |
| return XMLBEANS_VERSION; |
| } |
| |
| /** |
| * Thread local QName cache for general use |
| */ |
| private static final ThreadLocal _threadLocalLoaderQNameCache = |
| new ThreadLocal() { |
| protected Object initialValue() { |
| return new SoftReference(new QNameCache(32)); |
| } |
| }; |
| |
| public static void clearThreadLocals() { |
| // clear thread local here |
| _threadLocalLoaderQNameCache.remove(); |
| } |
| |
| /** |
| * Returns a thread local QNameCache |
| */ |
| public static QNameCache getQNameCache() { |
| SoftReference softRef = (SoftReference) _threadLocalLoaderQNameCache.get(); |
| QNameCache qnameCache = (QNameCache) (softRef).get(); |
| if (qnameCache == null) { |
| qnameCache = new QNameCache(32); |
| _threadLocalLoaderQNameCache.set(new SoftReference(qnameCache)); |
| } |
| return qnameCache; |
| } |
| |
| /** |
| * Obtains a name from the thread local QNameCache |
| */ |
| public static QName getQName(String localPart) { |
| return getQNameCache().getName("", localPart); |
| } |
| |
| /** |
| * Obtains a name from the thread local QNameCache |
| */ |
| |
| public static QName getQName(String namespaceUri, String localPart) { |
| return getQNameCache().getName(namespaceUri, localPart); |
| } |
| |
| private static RuntimeException causedException(RuntimeException e, Throwable cause) { |
| e.initCause(cause); |
| |
| return e; |
| } |
| |
| /** |
| * Compiles an XPath, returning a String equal to that which was passed, |
| * but whose identity is that of one which has been precompiled and cached. |
| */ |
| public static String compilePath(String pathExpr) throws XmlException { |
| return compilePath(pathExpr, null); |
| } |
| |
| /** |
| * Compiles an XPath, returning a String equal to that which was passed, |
| * but whose identity is that of one which has been precompiled and cached; |
| * takes an option for specifying text that indicates the name of context node. |
| * The default is "this", as in "$this". |
| * |
| * @param options Options for the path. For example, you can call |
| * the {@link XmlOptions#setXqueryCurrentNodeVar(String) XmlOptions.setXqueryCurrentNodeVar(String)} |
| * method to specify a particular name for the expression |
| * variable that indicates the context node. |
| */ |
| public static String compilePath(String pathExpr, XmlOptions options) |
| throws XmlException { |
| return getContextTypeLoader().compilePath(pathExpr, options); |
| } |
| |
| /** |
| * Compiles an XQuery, returning a String equal to that which was passed, |
| * but whose identity is that of one which has been precompiled and cached. |
| */ |
| public static String compileQuery(String queryExpr) throws XmlException { |
| return compileQuery(queryExpr, null); |
| } |
| |
| /** |
| * Compiles an XQuery, returning a String equal to that which was passed, |
| * but whose identity is that of one which has been precompiled and cached; |
| * takes an option for specifying text that indicates the context node. |
| * |
| * @param options Options for the query. For example, you can call |
| * the {@link XmlOptions#setXqueryCurrentNodeVar(String) XmlOptions.setXqueryCurrentNodeVar(String)} |
| * method to specify a particular name for the expression |
| * variable that indicates the context node and the |
| * {@link XmlOptions#setXqueryVariables(java.util.Map) XmlOptions.setXqueryVariables(Map)} |
| * method to map external variable names to values. |
| */ |
| public static String compileQuery(String queryExpr, XmlOptions options) |
| throws XmlException { |
| return getContextTypeLoader().compileQuery(queryExpr, options); |
| } |
| |
| /** |
| * Gets the SchemaTypeLoader based on the current thread's context |
| * ClassLoader. This is the SchemaTypeLoader that is used to assign |
| * schema types to XML documents by default. The SchemaTypeLoader is |
| * also consulted to resolve wildcards and xsi:type attributes. |
| * <p> |
| * The "parse" methods of XmlBeans all delegate to the |
| * "parseInstance" methods of the context type loader. |
| */ |
| public static SchemaTypeLoader getContextTypeLoader() { |
| return SchemaTypeLoaderImpl.getContextTypeLoader(); |
| } |
| |
| /** |
| * Returns the builtin type system. This SchemaTypeSystem contains |
| * only the 46 builtin types defined by the XML Schema specification. |
| */ |
| public static SchemaTypeSystem getBuiltinTypeSystem() { |
| return BuiltinSchemaTypeSystem.get(); |
| } |
| |
| /** |
| * Creates an XmlCursor for a DOM node which is implemented by XmlBwans |
| */ |
| public static XmlCursor nodeToCursor(Node n) { |
| return Locale.nodeToCursor(n); |
| } |
| |
| /** |
| * Creates an XmlObject for a DOM node which is implemented by XmlBwans |
| */ |
| public static XmlObject nodeToXmlObject(Node n) { |
| return Locale.nodeToXmlObject(n); |
| } |
| |
| /** |
| * Creates an XmlObject for a DOM node which is implemented by XmlBwans |
| */ |
| public static XMLStreamReader nodeToXmlStreamReader(Node n) { |
| return Locale.nodeToXmlStream(n); |
| } |
| |
| /** |
| * Returns the XmlObject for a DOM node which is implemented by XmlBwans |
| */ |
| public static Node streamToNode(XMLStreamReader xs) { |
| return Locale.streamToNode(xs); |
| } |
| |
| /** |
| * Returns the SchemaTypeSystem that results from compiling the XML |
| * schema definitions passed. |
| * <p> |
| * Just like compileXsd, but uses the context type loader for |
| * linking, and returns a unioned typeloader that is suitable for |
| * creating instances. |
| */ |
| public static SchemaTypeLoader loadXsd(XmlObject[] schemas) throws XmlException { |
| return loadXsd(schemas, null); |
| } |
| |
| /** |
| * <p>Returns the SchemaTypeSystem that results from compiling the XML |
| * schema definitions passed in <em>schemas</em>.</p> |
| * |
| * <p>This is just like compileXsd, but uses the context type loader for |
| * linking, and returns a unioned typeloader that is suitable for |
| * creating instances.</p> |
| * |
| * <p>Use the <em>options</em> parameter to specify one or both of the following:</p> |
| * |
| * <ul> |
| * <li>A collection instance that should be used as an error listener during |
| * compilation, as described in {@link XmlOptions#setErrorListener}.</li> |
| * <li>Whether validation should not be done when building the SchemaTypeSystem, |
| * as described in {@link XmlOptions#setCompileNoValidation}.</li> |
| * </ul> |
| * |
| * @param schemas The schema definitions from which to build the schema type system. |
| * @param options Options specifying an error listener and/or validation behavior. |
| */ |
| public static SchemaTypeLoader loadXsd(XmlObject[] schemas, XmlOptions options) throws XmlException { |
| SchemaTypeSystem sts = SchemaTypeSystemCompiler.compile(null, null, schemas, null, getContextTypeLoader(), null, options); |
| return (sts == null) ? null : typeLoaderUnion(sts, getContextTypeLoader()); |
| } |
| |
| |
| /** |
| * <p>Returns the SchemaTypeSystem that results from compiling the XML |
| * schema definitions passed.</p> |
| * |
| * <p>The XmlObjects passed in should be w3c <schema> elements whose type |
| * is org.w3c.x2001.xmlSchema.Schema. (That is, schema elements in |
| * the XML namespace http://www.w3c.org/2001/XMLSchema.) Also |
| * org.w3c.x2001.xmlSchema.SchemaDocument is permitted.</p> |
| * |
| * <p>The optional second argument is a SchemaTypeLoader which will be |
| * consulted for already-compiled schema types which may be linked |
| * while processing the given schemas.</p> |
| * |
| * <p>The SchemaTypeSystem that is returned should be combined |
| * (via {@link #typeLoaderUnion}) with the typepath typeloader in order |
| * to create a typeloader that can be used for creating and validating |
| * instances.</p> |
| * |
| * <p>Use the <em>options</em> parameter to specify the following:</p> |
| * |
| * <ul> |
| * <li>A collection instance that should be used as an error listener during |
| * compilation, as described in {@link XmlOptions#setErrorListener}.</li> |
| * <li>Whether validation should not be done when building the SchemaTypeSystem, |
| * as described in {@link XmlOptions#setCompileNoValidation}.</li> |
| * </ul> |
| * |
| * @param schemas The schema definitions from which to build the schema type system. |
| * @param typepath The path to already-compiled schema types for linking while processing. |
| * @param options Options specifying an error listener and/or validation behavior. |
| */ |
| public static SchemaTypeSystem compileXsd(XmlObject[] schemas, SchemaTypeLoader typepath, XmlOptions options) throws XmlException { |
| return compileXmlBeans(null, null, schemas, null, typepath, null, options); |
| } |
| |
| /** |
| * <p>Returns the SchemaTypeSystem that results from augumenting the |
| * SchemaTypeSystem passed in by incrementally adding the given XML |
| * schema definitions.</p> |
| * |
| * <p>These could be new definitions (if the Schema document is not recorded into |
| * the existing SchemaTypeSystem), modifications to the already existing |
| * definitions (if the Schema document is already recorded in the existing |
| * SchemaTypeSystem), or deletions (if the Schema document is already recorded |
| * in the existing SchemaTypeSystem and the new definitions are empty). |
| * The identity of documents is established using |
| * {@link XmlDocumentProperties#getSourceName}, so if the caller choses to |
| * construct the Schema definitions using other methods than parsing an |
| * XML document, they should make sure that the names returned by that |
| * method are consistent with the caller's intent (add/modify).</p> |
| * |
| * <p>The XmlObjects passed in should be w3c <schema> elements whose type |
| * is org.w3c.x2001.xmlSchema.Schema. (That is, schema elements in |
| * the XML namespace http://www.w3c.org/2001/XMLSchema.) Also |
| * org.w3c.x2001.xmlSchema.SchemaDocument is permitted.</p> |
| * |
| * <p>The optional second argument is a SchemaTypeLoader which will be |
| * consulted for already-compiled schema types which may be linked |
| * while processing the given schemas.</p> |
| * |
| * <p>The SchemaTypeSystem that is returned should be combined |
| * (via {@link #typeLoaderUnion}) with the typepath typeloader in order |
| * to create a typeloader that can be used for creating and validating |
| * instances.</p> |
| * |
| * <p>Use the <em>options</em> parameter to specify the following:</p> |
| * |
| * <ul> |
| * <li>A collection instance that should be used as an error listener during |
| * compilation, as described in {@link XmlOptions#setErrorListener}.</li> |
| * <li>Whether validation should not be done when building the SchemaTypeSystem, |
| * as described in {@link XmlOptions#setCompileNoValidation}.</li> |
| * </ul> |
| * |
| * @param schemas The schema definitions from which to build the schema type system. |
| * @param typepath The path to already-compiled schema types for linking while processing. |
| * @param options Options specifying an error listener and/or validation behavior. |
| */ |
| public static SchemaTypeSystem compileXsd(SchemaTypeSystem system, XmlObject[] schemas, SchemaTypeLoader typepath, XmlOptions options) throws XmlException { |
| return compileXmlBeans(null, system, schemas, null, typepath, null, options); |
| } |
| |
| /** |
| * <p>Returns the SchemaTypeSystem that results from augumenting the |
| * SchemaTypeSystem passed in by incrementally adding the given XML |
| * schema definitions.</p> |
| * |
| * <p>These could be new definitions (if the Schema document is not recorded into |
| * the existing SchemaTypeSystem), modifications to the already existing |
| * definitions (if the Schema document is already recorded in the existing |
| * SchemaTypeSystem), or deletions (if the Schema document is already recorded |
| * in the existing SchemaTypeSystem and the new definitions are empty). |
| * The identity of documents is established using |
| * {@link XmlDocumentProperties#getSourceName}, so if the caller choses to |
| * construct the Schema definitions using other methods than parsing an |
| * XML document, they should make sure that the names returned by that |
| * method are consistent with the caller's intent (add/modify).</p> |
| * |
| * <p>The XmlObjects passed in should be w3c <schema> elements whose type |
| * is org.w3c.x2001.xmlSchema.Schema. (That is, schema elements in |
| * the XML namespace http://www.w3c.org/2001/XMLSchema.) Also |
| * org.w3c.x2001.xmlSchema.SchemaDocument is permitted.</p> |
| * |
| * <p>The optional name argument is used to name the compiled schema type system. |
| * A randomly generated name will be used if the name is null.</p> |
| * |
| * <p>The optional {@link BindingConfig} argument is used to control the shape |
| * of the generated code. A <code>BindingConfig</code> isn't used if <code>Filer</code> |
| * is null.</p> |
| * |
| * <p>The optional SchemaTypeLoader argument will be |
| * consulted for already-compiled schema types which may be linked |
| * while processing the given schemas. If not specified, the context |
| * typeloader (as returned by {@link #getContextTypeLoader}) will be used.</p> |
| * |
| * <p>The optional {@link Filer} argument is used to create new binary or source |
| * files which are the product of the compilation. If the Filer is null, the |
| * schema binaries (.xsb) files and source files won't be generated.</p> |
| * |
| * <p>The SchemaTypeSystem that is returned should be combined |
| * (via {@link #typeLoaderUnion}) with the typepath typeloader in order |
| * to create a typeloader that can be used for creating and validating |
| * instances.</p> |
| * |
| * <p>Use the <em>options</em> parameter to specify the following:</p> |
| * |
| * <ul> |
| * <li>A collection instance that should be used as an error listener during |
| * compilation, as described in {@link XmlOptions#setErrorListener}.</li> |
| * <li>Whether validation should not be done when building the SchemaTypeSystem, |
| * as described in {@link XmlOptions#setCompileNoValidation}.</li> |
| * </ul> |
| * |
| * @param name The type system name or null to use a randomly generated name. |
| * @param system A pre-existing SchemaTypeSystem used in incremental compilation. |
| * @param schemas The schema definitions from which to build the schema type system. |
| * @param config The configuration controls the code generation shape. |
| * @param typepath The path to already-compiled schema types for linking while processing. |
| * @param filer The Filer instance used to create binary binding files and source text files. |
| * @param options Options specifying an error listener and/or validation behavior. |
| */ |
| public static SchemaTypeSystem compileXmlBeans(String name, SchemaTypeSystem system, XmlObject[] schemas, BindingConfig config, SchemaTypeLoader typepath, Filer filer, XmlOptions options) throws XmlException { |
| return SchemaTypeSystemCompiler.compile(name, system, schemas, config, typepath != null ? typepath : getContextTypeLoader(), filer, options); |
| } |
| |
| |
| /** |
| * Returns the union of a list of typeLoaders. The returned |
| * SchemaTypeLoader searches the given list of SchemaTypeLoaders |
| * in order from first to last. |
| */ |
| public static SchemaTypeLoader typeLoaderUnion(SchemaTypeLoader... typeLoaders) { |
| return (typeLoaders.length == 1) ? typeLoaders[0] : SchemaTypeLoaderImpl.build(typeLoaders, null, null); |
| } |
| |
| /** |
| * Returns a SchemaTypeLoader that searches for compiled schema types |
| * in the given ClassLoader. |
| */ |
| public static SchemaTypeLoader typeLoaderForClassLoader(ClassLoader loader) { |
| return SchemaTypeLoaderImpl.build(null, null, loader); |
| } |
| |
| /** |
| * Returns a SchemaTypeLoader that searches for compiled schema types |
| * in the given ResourceLoader. |
| * |
| * @see XmlBeans#resourceLoaderForPath(File[]) |
| */ |
| public static SchemaTypeLoader typeLoaderForResource(ResourceLoader resourceLoader) { |
| return SchemaTypeLoaderImpl.build(null, resourceLoader, null); |
| } |
| |
| /** |
| * Returns the SchemaTypeSystem of the given name (as returned by |
| * {@link SchemaTypeSystem#getName}) for the given ClassLoader. |
| * <p> |
| * Note: you will almost always need typeLoaderForClassLoader() |
| * instead (see {@link XmlBeans#typeLoaderForClassLoader}). |
| */ |
| public static SchemaTypeSystem typeSystemForClassLoader(ClassLoader loader, String stsName) { |
| try { |
| ClassLoader cl = loader == null ? Thread.currentThread().getContextClassLoader() : loader; |
| Class clazz = cl.loadClass(stsName + "." + HOLDER_CLASS_NAME); |
| SchemaTypeSystem sts = (SchemaTypeSystem) |
| (clazz.getDeclaredField(TYPE_SYSTEM_FIELD).get(null)); |
| if (sts == null) { |
| throw new RuntimeException("SchemaTypeSystem is null for field " + |
| TYPE_SYSTEM_FIELD + " on class with name " + stsName + |
| "." + HOLDER_CLASS_NAME + |
| ". Please verify the version of xmlbeans.jar is correct."); |
| } |
| return sts; |
| } catch (ClassNotFoundException e) { |
| throw causedException(new RuntimeException("Cannot load SchemaTypeSystem. " + |
| "Unable to load class with name " + stsName + "." + HOLDER_CLASS_NAME + |
| ". Make sure the generated binary files are on the classpath."), e); |
| } catch (NoSuchFieldException e) { |
| throw causedException(new RuntimeException("Cannot find field " + |
| TYPE_SYSTEM_FIELD + " on class " + stsName + "." + HOLDER_CLASS_NAME + |
| ". Please verify the version of xmlbeans.jar is correct."), e); |
| } catch (IllegalAccessException e) { |
| throw causedException(new RuntimeException("Field " + |
| TYPE_SYSTEM_FIELD + " on class " + stsName + "." + HOLDER_CLASS_NAME + |
| "is not accessible. Please verify the version of xmlbeans.jar is correct."), e); |
| } |
| } |
| |
| /** |
| * Returns a new ResourceLoader for a search path where each component of |
| * the path is either a directory or a compiled xmlbeans jar. |
| */ |
| public static ResourceLoader resourceLoaderForPath(File[] path) { |
| return new PathResourceLoader(path); |
| } |
| |
| /** |
| * Returns the SchemaType from a corresponding XmlObject subclass, |
| * or null if none. |
| */ |
| public static SchemaType typeForClass(Class c) { |
| if (c == null || !XmlObject.class.isAssignableFrom(c)) { |
| return null; |
| } |
| |
| try { |
| Field typeField = c.getField("type"); |
| |
| if (typeField == null) { |
| return null; |
| } |
| |
| return (SchemaType) typeField.get(null); |
| } catch (Exception e) { |
| return null; |
| } |
| } |
| |
| private static SchemaType getNoType() { |
| return org.apache.xmlbeans.impl.schema.BuiltinSchemaTypeSystem.getNoType(); |
| } |
| |
| /** |
| * The SchemaType object given to an XmlObject instance when |
| * no type can be determined. |
| * <p> |
| * The NO_TYPE is the universal derived type. That is, it is |
| * derived from all other schema types, and no instances of the |
| * NO_TYPE are valid. (It is not to be confused with the anyType, |
| * which is the universal base type from which all other types |
| * can be derived, and of which all instances are valid.) |
| */ |
| public static final SchemaType NO_TYPE = getNoType(); |
| |
| private XmlBeans() { |
| } |
| } |