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/*
* Copyright 2003-2005 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 xs;
import org.apache.xerces.xs.XSConstants;
import org.apache.xerces.xs.XSImplementation;
import org.apache.xerces.xs.XSLoader;
import org.apache.xerces.xs.XSModel;
import org.apache.xerces.xs.XSNamedMap;
import org.apache.xerces.xs.XSObject;
import org.w3c.dom.DOMConfiguration;
import org.w3c.dom.DOMError;
import org.w3c.dom.DOMErrorHandler;
import org.w3c.dom.bootstrap.DOMImplementationRegistry;
import org.w3c.dom.ls.LSParser;
/**
* This sample program illustrates how to use load XML Schemas and
* use XML Schema API (org.apache.xerces.xs) to navigate XML Schema components.
*
* @author Elena Litani, IBM
* @version $Id: QueryXS.java 320297 2005-05-02 22:07:08Z mrglavas $
*/
public class QueryXS implements DOMErrorHandler {
/** Default namespaces support (true). */
protected static final boolean DEFAULT_NAMESPACES = true;
/** Default validation support (false). */
protected static final boolean DEFAULT_VALIDATION = false;
/** Default Schema validation support (false). */
protected static final boolean DEFAULT_SCHEMA_VALIDATION = false;
static LSParser builder;
public static void main(String[] argv) {
if (argv.length == 0) {
printUsage();
System.exit(1);
}
try {
// get DOM Implementation using DOM Registry
System.setProperty(
DOMImplementationRegistry.PROPERTY,
"org.apache.xerces.dom.DOMXSImplementationSourceImpl");
DOMImplementationRegistry registry = DOMImplementationRegistry.newInstance();
XSImplementation impl = (XSImplementation) registry.getDOMImplementation("XS-Loader");
XSLoader schemaLoader = impl.createXSLoader(null);
DOMConfiguration config = schemaLoader.getConfig();
// create Error Handler
DOMErrorHandler errorHandler = new QueryXS();
// set error handler
config.setParameter("error-handler", errorHandler);
// set validation feature
config.setParameter("validate", Boolean.TRUE);
// parse document
System.out.println("Parsing " + argv[0] + "...");
XSModel model = schemaLoader.loadURI(argv[0]);
if (model != null) {
// element declarations
XSNamedMap map = model.getComponents(XSConstants.ELEMENT_DECLARATION);
if (map.getLength() != 0) {
System.out.println("*************************************************");
System.out.println("* Global element declarations: {namespace} name ");
System.out.println("*************************************************");
for (int i = 0; i < map.getLength(); i++) {
XSObject item = map.item(i);
System.out.println("{" + item.getNamespace() + "}" + item.getName());
}
}
// attribute declarations
map = model.getComponents(XSConstants.ATTRIBUTE_DECLARATION);
if (map.getLength() != 0) {
System.out.println("*************************************************");
System.out.println("* Global attribute declarations: {namespace} name");
System.out.println("*************************************************");
for (int i = 0; i < map.getLength(); i++) {
XSObject item = map.item(i);
System.out.println("{" + item.getNamespace() + "}" + item.getName());
}
}
// notation declarations
map = model.getComponents(XSConstants.TYPE_DEFINITION);
if (map.getLength() != 0) {
System.out.println("*************************************************");
System.out.println("* Global type declarations: {namespace} name");
System.out.println("*************************************************");
for (int i = 0; i < map.getLength(); i++) {
XSObject item = map.item(i);
System.out.println("{" + item.getNamespace() + "}" + item.getName());
}
}
// notation declarations
map = model.getComponents(XSConstants.NOTATION_DECLARATION);
if (map.getLength() != 0) {
System.out.println("*************************************************");
System.out.println("* Global notation declarations: {namespace} name");
System.out.println("*************************************************");
for (int i = 0; i < map.getLength(); i++) {
XSObject item = map.item(i);
System.out.println("{" + item.getNamespace() + "}" + item.getName());
}
}
}
} catch (Exception ex) {
ex.printStackTrace();
}
}
private static void printUsage() {
System.err.println("usage: java dom.QueryXS uri ...");
System.err.println();
} // printUsage()
public boolean handleError(DOMError error){
short severity = error.getSeverity();
if (severity == DOMError.SEVERITY_ERROR) {
System.out.println("[xs-error]: "+error.getMessage());
}
if (severity == DOMError.SEVERITY_WARNING) {
System.out.println("[xs-warning]: "+error.getMessage());
}
return true;
}
}
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