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package org.apache.tuscany.tools.xmlfromxsd.generate;
import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Iterator;
import java.util.List;
import javax.wsdl.Definition;
import javax.wsdl.WSDLException;
import javax.wsdl.extensions.schema.Schema;
import javax.wsdl.factory.WSDLFactory;
import javax.wsdl.xml.WSDLReader;
import javax.xml.parsers.ParserConfigurationException;
import org.apache.axis2.util.XMLUtils;
import org.apache.xmlbeans.SchemaType;
import org.apache.xmlbeans.SchemaTypeSystem;
import org.apache.xmlbeans.XmlBeans;
import org.apache.xmlbeans.XmlException;
import org.apache.xmlbeans.XmlObject;
import org.apache.xmlbeans.XmlOptions;
import org.apache.xmlbeans.impl.xsd2inst.SchemaInstanceGenerator;
import org.w3c.dom.Document;
import org.xml.sax.SAXException;
import com.ibm.wsdl.util.xml.DOM2Writer;
public class XBbasedXMLGenerator extends SchemaInstanceGenerator implements XMLGenerator
{
private XMLfromXSDConfiguration config = null;
public XBbasedXMLGenerator(XMLfromXSDConfiguration config)
{
this.config = config;
// config.setXsdInputStream(getClass().getResource(conf).openStream());
}
public void generateXML() throws Exception
{
SchemaTypeSystem sts = processXSDSources();
SchemaType rootElementType = getRootElementSchemaType(sts);
if ( rootElementType != null )
{
TuscanySampleXmlUtil xmlUtil = new TuscanySampleXmlUtil();
xmlUtil.setGenerate_sample_data(config.isGenerateSampleData());
String result = xmlUtil.createSampleForType(rootElementType);
config.getXmlOutputStream().write(result.getBytes());
//System.out.println(result);
}
else
{
System.out.println("Could not find a global element with name \"" + config.getRootElementLocalName() + "\"");
}
}
protected SchemaType getRootElementSchemaType(SchemaTypeSystem sts)
{
SchemaType schemaType = null;
if (sts == null)
{
System.out.println("No Schemas to process.");
}
else
{
//first check in the global types
SchemaType[] globalTypes = sts.globalTypes();
for (int i = 0; i < globalTypes.length; i++)
{
if (config.getSchemaTypeName().equals(globalTypes[i].getName().getLocalPart()))
{
schemaType = globalTypes[i];
break;
}
}
//next check for anonymous types defined inline within elements
if ( schemaType == null )
{
SchemaType[] globalElems = sts.documentTypes();
for (int i = 0; i < globalElems.length; i++)
{
if (config.getSchemaTypeName().equals(globalElems[i].getDocumentElementName().getLocalPart()))
{
schemaType = globalElems[i];
break;
}
}
}
}
return schemaType;
}
public void generateXML(XMLfromXSDConfiguration config) throws Exception
{
this.config = config;
generateXML();
}
public XMLfromXSDConfiguration getConfig()
{
return config;
}
public void setConfig(XMLfromXSDConfiguration config)
{
this.config = config;
}
private Definition readInTheWSDLFile(InputStream wsdlStream) throws WSDLException
{
WSDLReader reader = WSDLFactory.newInstance().newWSDLReader();
reader.setFeature("javax.wsdl.importDocuments", true);
/*File file = new File(uri);
String baseURI;
if (uri.startsWith("http://")){
baseURI = uri;
} else{
if(file.getParentFile() == null){
try {
baseURI = new File(".").getCanonicalFile().toURI().toString();
} catch (IOException e) {
throw new RuntimeException(e);
}
} else {
baseURI = file.getParentFile().toURI().toString();
}
}
*/
Document doc;
try {
doc = XMLUtils.newDocument(wsdlStream);
} catch (ParserConfigurationException e) {
throw new WSDLException(WSDLException.PARSER_ERROR,
"Parser Configuration Error",
e);
} catch (SAXException e) {
throw new WSDLException(WSDLException.PARSER_ERROR,
"Parser SAX Error",
e);
} catch (IOException e) {
throw new WSDLException(WSDLException.INVALID_WSDL, "IO Error", e);
}
return reader.readWSDL(config.getRootElementNamespaceURI(), doc);
}
protected InputStream[] getXSDsFromWSDL(InputStream xsdInputStream) throws Exception
{
Definition defn = readInTheWSDLFile(xsdInputStream);
List list = defn.getTypes().getExtensibilityElements();
InputStream[] xsdFragments = new InputStream[list.size()];
Iterator iterator = list.iterator();
Schema schemaElement = null;
for ( int count = 0 ; count < list.size() ; ++count )
{
schemaElement = (Schema)iterator.next();
//System.out.println(" *** - " + element.getElementType().getNamespaceURI());
//System.out.println(" **** - " + element + " & " + element.getClass().getPackage().getName());
//System.out.println(DOM2Writer.nodeToString(element.getElement()));
xsdFragments[count] =
new ByteArrayInputStream(DOM2Writer.nodeToString(schemaElement.getElement()).getBytes());
}
return xsdFragments;
}
protected SchemaTypeSystem processXSDSources() throws Exception
{
SchemaTypeSystem sts = null;
if ( config.getXsdFileName().endsWith(XSD_FILE) )
{
sts = processXSDs(new InputStream[]{ config.getXsdInputStream()} );
}
else if ( config.getXsdFileName().endsWith(WSDL_FILE) )
{
sts = processXSDs(getXSDsFromWSDL(config.getXsdInputStream()));
}
return sts;
}
protected SchemaTypeSystem processXSDs(InputStream[] inputStreams)
{
List sdocs = new ArrayList();
for (int i = 0; i < inputStreams.length; i++)
{
try
{
sdocs.add(XmlObject.Factory.parse(inputStreams[i],
(new XmlOptions()).setLoadLineNumbers().setLoadMessageDigest()));
}
catch (Exception e)
{
System.err.println("Can not load schema file: " + inputStreams[i] + ": ");
e.printStackTrace();
}
}
XmlObject[] schemas = (XmlObject[]) sdocs.toArray(new XmlObject[sdocs.size()]);
SchemaTypeSystem sts = null;
if (schemas.length > 0)
{
Collection errors = new ArrayList();
XmlOptions compileOptions = new XmlOptions();
/*if (dl)
compileOptions.setCompileDownloadUrls();
if (nopvr)
compileOptions.setCompileNoPvrRule();
if (noupa)
compileOptions.setCompileNoUpaRule();
*/
try
{
sts = XmlBeans.compileXsd(schemas, XmlBeans.getBuiltinTypeSystem(), compileOptions);
}
catch (Exception e)
{
if (errors.isEmpty() || !(e instanceof XmlException))
e.printStackTrace();
System.out.println("Schema compilation errors: ");
for (Iterator i = errors.iterator(); i.hasNext(); )
System.out.println(i.next());
}
}
return sts;
}
}
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