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import java.io.ByteArrayInputStream;
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import java.io.ByteArrayOutputStream;
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import java.io.StringReader;
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import javax.xml.transform.ErrorListener;
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import javax.xml.transform.Result;
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import javax.xml.transform.Source;
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import javax.xml.transform.Templates;
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import javax.xml.transform.Transformer;
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import javax.xml.transform.TransformerException;
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import javax.xml.transform.sax.SAXSource;
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import javax.xml.transform.stream.StreamResult;
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import javax.xml.transform.stream.StreamSource;
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import net.sf.saxon.Controller;
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import net.sf.saxon.TransformerFactoryImpl;
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import org.xml.sax.InputSource;
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import com.saxonica.Validate;
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import com.saxonica.config.EnterpriseConfiguration;
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public class SaxonIDValidationTest {
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public static class StdErrorListener implements ErrorListener {
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@Override
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public void warning( TransformerException exception ) throws TransformerException {
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System.out.println( String.format( "Transformer WARNING: %s", exception.getMessage() ) );
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exception.printStackTrace( System.out );
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}
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@Override
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public void error( TransformerException exception ) throws TransformerException {
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System.out.println( String.format( "Transformer ERROR: %s", exception.getMessage() ) );
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exception.printStackTrace( System.out );
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}
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@Override
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public void fatalError( TransformerException exception ) throws TransformerException {
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System.out.println( String.format( "Transformer FATAL ERROR: %s", exception.getMessage() ) );
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exception.printStackTrace( System.out );
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}
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}
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// Place schema.xsd in the working directory that you run this class from
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public static final String SCHEMA_LOCATION = "schema.xsd";
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// A simple XSL that demonstrates an example of an error that is caught during a parse which is not
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// caught when validating during transform.
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private static final String XSL_TEXT =
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"<?xml version=\"1.0\" encoding=\"UTF-8\"?>"
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+ "<xsl:stylesheet version=\"2.0\" xmlns:xsl=\"http://www.w3.org/1999/XSL/Transform\" xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\" exclude-result-prefixes=\"#all\">"
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+ " <xsl:output method=\"xml\" version=\"1.0\" encoding=\"UTF-8\"/>"
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+ " <xsl:import-schema schema-location=\"" + SCHEMA_LOCATION + "\"/>"
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+ " <xsl:template match=\"@*|node()\">"
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+ " <xsl:copy copy-namespaces=\"no\">"
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+ " <xsl:apply-templates select=\"@*|node()\"/>"
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+ " </xsl:copy>"
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+ " </xsl:template>"
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+ " <xsl:template match=\"/elementA\">"
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+ " <elementA %s>" // Use String.format to turn schema validation on/off
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+ " <xsl:attribute name=\"id\" select=\"@id\"/>"
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+ " <xsl:namespace name=\"xsi\" select=\"'http://www.w3.org/2001/XMLSchema-instance'\"/>"
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+ " <xsl:attribute name=\"xsi:noNamespaceSchemaLocation\" select=\"'" + SCHEMA_LOCATION + "'\"/>"
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+ " <xsl:apply-templates select=\"node()\"/>"
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+ " </elementA>"
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+ " </xsl:template>"
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+ "</xsl:stylesheet>"
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;
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// Substitute in xsl:validation="strict" on elementA in XSL_TEXT
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public static final String XSL_WITH_VALIDATION = String.format( XSL_TEXT, "xsl:validation=\"strict\"" );
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// Substitute empty string on elementA, which will do the transform without a validation
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public static final String XSL_WITHOUT_VALIDATION = String.format( XSL_TEXT, "" );
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// The XML to transform and validate
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public static final String XML_TEXT =
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"<?xml version=\"1.0\" encoding=\"UTF-8\"?>"
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+ "<elementA "
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+ " xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\""
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+ " xsi:noNamespaceSchemaLocation=\"" + SCHEMA_LOCATION + "\""
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+ " id=\"ID001\">"
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+ " <elementB>"
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+ " <elementID rid=\"ID002\"/>" // ID002 Does not exist
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+ " </elementB>"
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+ " <elementC>"
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+ " </elementC>"
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+ "</elementA>";
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public void doValidationOnTransform() throws Exception {
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TransformerFactoryImpl tf = new TransformerFactoryImpl();
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tf.setErrorListener( new StdErrorListener() );
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Templates xsltTemplate = tf.newTemplates( new SAXSource( new InputSource( new ByteArrayInputStream( XSL_WITH_VALIDATION.getBytes() ) ) ) );
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Transformer xformer = xsltTemplate.newTransformer();
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Source xmlSource = new StreamSource( new StringReader( XML_TEXT ) );
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ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
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Result xmlResult = new StreamResult( outputStream );
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xformer.transform( xmlSource, xmlResult );
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}
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public void doValidationAfterTransform() throws Exception {
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// Do transformation first
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TransformerFactoryImpl tf = new TransformerFactoryImpl();
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tf.setErrorListener( new StdErrorListener() );
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Templates xsltTemplate = tf.newTemplates( new SAXSource( new InputSource( new ByteArrayInputStream( XSL_WITHOUT_VALIDATION.getBytes() ) ) ) );
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Transformer xformer = xsltTemplate.newTransformer();
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Source xmlSource = new StreamSource( new StringReader( XML_TEXT ) );
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ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
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Result xmlResult = new StreamResult( outputStream );
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xformer.transform( xmlSource, xmlResult );
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// Now Validate the result
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xmlSource = new StreamSource( new ByteArrayInputStream( outputStream.toByteArray() ) );
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EnterpriseConfiguration config = new EnterpriseConfiguration();
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Controller controller = new Controller( config );
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controller.getExecutable().setSchemaAware(true);
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Validate validate = new Validate();
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validate.processFile( xmlSource, controller );
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}
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public static void main( String[] args ) throws Exception {
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SaxonIDValidationTest test = new SaxonIDValidationTest();
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try {
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test.doValidationOnTransform();
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System.out.println( "doValidationOnTransform SUCCESS." );
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} catch ( Exception ex ) {
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System.out.println( "doValidationOnTransform FAILED!" );
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ex.printStackTrace();
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}
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try {
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test.doValidationAfterTransform();
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System.out.println( "doValidationAfterTransform SUCCESS." );
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} catch ( Exception ex ) {
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System.out.println( "doValidationAfterTransform FAILED!" );
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ex.printStackTrace();
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}
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}
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}
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