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/**
* easySchema - easyWSDL toolbox Platform.
* Copyright (c) 2008, eBM Websourcing
* All rights reserved.
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* * Neither the name of the University of California, Berkeley nor the
* names of its contributors may be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE REGENTS AND CONTRIBUTORS BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package org.ow2.easywsdl.schema.impl;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.net.MalformedURLException;
import java.net.URI;
import java.net.URISyntaxException;
import java.net.URL;
import java.util.HashMap;
import java.util.Map;
import java.util.logging.Logger;
import javax.xml.bind.JAXBContext;
import javax.xml.bind.JAXBElement;
import javax.xml.bind.JAXBException;
import javax.xml.transform.Transformer;
import javax.xml.transform.TransformerConfigurationException;
import javax.xml.transform.TransformerException;
import javax.xml.transform.TransformerFactory;
import javax.xml.transform.TransformerFactoryConfigurationError;
import javax.xml.transform.dom.DOMSource;
import javax.xml.transform.sax.SAXSource;
import javax.xml.transform.stream.StreamResult;
import org.ow2.easywsdl.schema.api.Schema;
import org.ow2.easywsdl.schema.api.SchemaException;
import org.ow2.easywsdl.schema.api.absItf.AbsItfSchema;
import org.ow2.easywsdl.schema.api.abstractElmt.AbstractSchemaReader;
import org.ow2.easywsdl.schema.util.EasyXMLFilter;
import org.ow2.easywsdl.schema.util.URILocationResolver;
import org.w3c.dom.Document;
import org.xml.sax.InputSource;
import org.xml.sax.SAXException;
import org.xml.sax.XMLReader;
import org.xml.sax.helpers.XMLReaderFactory;
/**
* @author Nicolas Salatge - eBM WebSourcing
* @author Gael Blondelle - EBM WebSourcing
*/
public class SchemaReaderImpl extends AbstractSchemaReader implements org.ow2.easywsdl.schema.api.SchemaReader {
private static Logger log = Logger.getLogger(SchemaReaderImpl.class.getName());
private Map features = new HashMap();
private Map importList = new HashMap();
private final URILocationResolver schemaLocationResolver = new URILocationResolver();
private URI documentBaseURI;
private static SchemaJAXBContext jaxbcontext = null;
private static SchemaException contextException = null;
static {
try {
jaxbcontext = new SchemaJAXBContext();
} catch (final SchemaException e) {
contextException = e;
}
}
public static SchemaJAXBContext getJaxbContext() throws SchemaException {
if(contextException != null) {
throw contextException;
}
return jaxbcontext;
}
/*
* Private object initializations
*/
public SchemaReaderImpl() throws SchemaException {
getJaxbContext();
this.features.put(FeatureConstants.VERBOSE, false);
this.features.put(FeatureConstants.IMPORT_DOCUMENTS, true);
}
/**
* {@inheritDoc}
*/
public void setDocumentBaseURI(final URI documentBaseURI) {
this.documentBaseURI = documentBaseURI;
}
/**
* {@inheritDoc}
*/
public URI getDocumentBaseURI() {
return this.documentBaseURI;
}
/**
* {@inheritDoc}
*/
public Schema read(final URL schemaURL) throws SchemaException, URISyntaxException, IOException {
try {
InputStream stream = schemaURL.openStream();
if(stream == null) {
throw new SchemaException("Ressource not found at url: " + schemaURL);
}
final InputSource inputSource = new InputSource(stream);
inputSource.setSystemId(schemaURL.toString());
return this.read(inputSource);
} catch (final MalformedURLException e) {
throw new RuntimeException("The provided well-formed URL has been detected as malformed !!");
}
}
/**
* {@inheritDoc}
*/
public Schema read(final InputSource inputSource)
throws SchemaException, URISyntaxException, MalformedURLException {
if(inputSource.getSystemId() != null) {
this.documentBaseURI = new URI(inputSource.getSystemId());
} else {
this.documentBaseURI = new URI(".");
}
return this.readSchema(inputSource, null, true);
}
/**
* {@inheritDoc}
*/
public Schema read(final Document doc) throws SchemaException {
try {
// The DOM Document needs to be converted into an InputStream
final ByteArrayOutputStream baos = new ByteArrayOutputStream();
final StreamResult streamResult = new StreamResult(baos);
// FIXME: The Transformer creation is not thread-safe
final Transformer transformer = TransformerFactory.newInstance()
.newTransformer();
transformer.transform(new DOMSource(doc), streamResult);
baos.flush();
baos.close();
final InputSource documentInputSource = new InputSource(
new ByteArrayInputStream(baos.toByteArray()));
documentInputSource.setSystemId(doc.getBaseURI());
return this.read(documentInputSource);
} catch (final TransformerConfigurationException e) {
throw new SchemaException(e);
} catch (final TransformerFactoryConfigurationError e) {
throw new SchemaException(e);
} catch (final TransformerException e) {
throw new SchemaException(e);
} catch (final IOException e) {
throw new SchemaException(e);
} catch (final URISyntaxException e) {
throw new SchemaException(e);
}
}
/**
* {@inheritDoc}
*/
@Override
protected Schema readExternalPart(final URI schemaLocationURI, final URI baseURI, Map imports, boolean deleteImports) throws SchemaException, MalformedURLException, URISyntaxException {
InputSource inputSource = null;
try {
inputSource = new InputSource(this.schemaLocationResolver.resolve(baseURI, schemaLocationURI).openStream());
inputSource.setSystemId(this.schemaLocationResolver.resolve(baseURI, schemaLocationURI).toString());
} catch (IOException e) {
throw new SchemaException(e);
}
return this.readSchema(inputSource, imports, deleteImports);
}
/**
* @throws MalformedURLException
* The {@link InputSource} systemId is a malformed URL.
* @throws URISyntaxException
* The {@link InputSource} systemId is an URL not formatted
* strictly according to to RFC2396 and cannot be converted to a
* URI.
*/
private Schema readSchema(final InputSource source, Map imports, boolean deleteImports) throws SchemaException, MalformedURLException, URISyntaxException {
if(deleteImports){
this.getImportList().clear();
}
try {
final String systemId = source.getSystemId();
URI systemIdURI;
if (systemId != null ) {
systemIdURI = new URI(systemId);
this.setDocumentBaseURI(systemIdURI);
} else {
systemIdURI = new File(".").toURI();
}
final XMLReader xmlReader = XMLReaderFactory.createXMLReader();
final EasyXMLFilter filter = new EasyXMLFilter(xmlReader);
final SAXSource saxSource = new SAXSource(filter, source);
// TODO use SAX validation instead of JAXB validation
// turn off the JAXB provider's default validation mechanism to
// avoid duplicate validation
// SchemaReaderImpl.getUnMarshaller().setValidating( false );
log.fine("Loading " + systemIdURI);
// unmarshal
final JAXBElement schemaBinding = getJaxbContext().getJaxbContext().createUnmarshaller().unmarshal(saxSource, org.ow2.easywsdl.schema.org.w3._2001.xmlschema.Schema.class);
final org.ow2.easywsdl.schema.org.w3._2001.xmlschema.Schema def = schemaBinding.getValue();
return new org.ow2.easywsdl.schema.impl.SchemaImpl(systemIdURI, def, filter.getNamespaceMapper(), filter.getSchemaLocator(), this.getFeatures(), imports, this);
} catch (SAXException e) {
throw new SchemaException("Can not get schema: ", e);
} catch (JAXBException e) {
throw new SchemaException("Can not get schema: ", e);
}
}
public void setFeature(final FeatureConstants name, final Object value)
throws IllegalArgumentException {
this.features.put(name, value);
SchemaReaderImpl.log.finest("set features: name = " + name + " - value = " + value);
}
public Object getFeature(final FeatureConstants name) throws IllegalArgumentException {
return this.features.get(name);
}
public Map getFeatures() {
return this.features;
}
public void setFeatures(final Map features) {
this.features = features;
}
@Override
protected Map getImportList() {
return importList;
}
protected void setImportList(Map importLists) {
this.importList = importLists;
}
}
