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package org.madore.damlengine;
import java.io.StringReader;
import java.io.IOException;
import java.net.URI;
import java.net.URISyntaxException;
import java.net.MalformedURLException;
import javax.xml.parsers.SAXParserFactory;
import org.w3c.dom.ls.LSResourceResolver;
import org.w3c.dom.ls.LSInput;
import org.xml.sax.SAXException;
import org.xml.sax.EntityResolver;
import org.xml.sax.ext.EntityResolver2;
import org.xml.sax.InputSource;
import org.apache.xml.resolver.CatalogManager;
import org.apache.xml.resolver.Catalog;
import org.apache.xml.resolver.readers.SAXCatalogReader;
import org.apache.xml.resolver.readers.OASISXMLCatalogReader;
import org.apache.xerces.dom.DOMInputImpl;
import org.apache.xerces.jaxp.SAXParserFactoryImpl;
public final class Resolver
implements LSResourceResolver, EntityResolver, EntityResolver2 {
private static final String catalogFiles[] = { "/etc/xml/catalog" };
private CatalogManager catalogManager = null;
private Catalog catalog = null;
public static final class BootstrapResolver
extends org.apache.xml.resolver.helpers.BootstrapResolver {
@Override
public InputSource resolveEntity(String publicId, String systemId) {
String resolved = null;
if ( publicId.equals("-//GlobalTransCorp//DTD XML Catalogs "
+"V1.0-Based Extension V1.0//EN") ) {
resolved
= "file:///usr/share/xml/schema/xml-core/tr9401.dtd";
}
if ( resolved != null ) {
InputSource source = new InputSource(resolved);
source.setPublicId(publicId);
return source;
}
return super.resolveEntity(publicId, systemId);
}
}
public Resolver() {
catalogManager = new CatalogManager();
// catalogManager.setVerbosity(42);
catalogManager.setPreferPublic(true);
catalogManager.setRelativeCatalogs(false);
catalogManager.setBootstrapResolver(new BootstrapResolver());
catalog = new Catalog(catalogManager);
SAXParserFactory spf = new SAXParserFactoryImpl();
spf.setNamespaceAware(true);
spf.setValidating(false);
SAXCatalogReader saxReader = new SAXCatalogReader(spf);
saxReader.setCatalogParser(OASISXMLCatalogReader.namespaceName,
"catalog",
"org.apache.xml.resolver.readers."
+"OASISXMLCatalogReader");
catalog.addReader("application/xml", saxReader);
for ( String f : catalogFiles ) {
try {
catalog.parseCatalog(f);
} catch (MalformedURLException e) {
throw new RuntimeException(e);
} catch (IOException e) {
throw new RuntimeException(e);
}
}
}
public String resolvePublic(String publicId, String systemId) {
try {
return catalog.resolvePublic(publicId, systemId);
} catch (MalformedURLException e) {
throw new RuntimeException(e);
} catch (IOException e) {
throw new RuntimeException(e);
}
}
public String resolveSystem(String systemId) {
try {
return catalog.resolveSystem(systemId);
} catch (MalformedURLException e) {
throw new RuntimeException(e);
} catch (IOException e) {
throw new RuntimeException(e);
}
}
protected String resolve(String namespaceURI,
String publicId,
String systemId,
String baseURI) {
String resolved;
if ( publicId != null )
resolved = resolvePublic(publicId, systemId);
else
resolved = resolveSystem(systemId);
if ( resolved != null )
return resolved;
if ( baseURI != null ) {
try {
URI u = new URI(baseURI);
URI v = u.resolve(systemId);
return v.toString();
} catch ( URISyntaxException e ) {
// Fail and continue to next return.
}
}
return systemId;
}
protected String damlMagic(String uri) {
if ( uri.equals("x-daml-magic://daml/weblog/doindex.xml") )
return "IGNORE";
else if ( uri.equals("x-daml-magic://daml/weblog/domaxentries.xml") )
return "INCLUDE";
else if ( uri.equals("x-daml-magic://daml/weblog/maxentries.xml") )
return "20";
else if ( uri.equals("x-daml-magic://daml/weblog/domonth.xml") )
return "IGNORE";
else if ( uri.equals("x-daml-magic://daml/weblog/month.xml") )
return "";
else if ( uri.equals("x-daml-magic://daml/weblog/docategory.xml") )
return "IGNORE";
else if ( uri.equals("x-daml-magic://daml/weblog/category-en.xml") )
return "";
else if ( uri.equals("x-daml-magic://daml/weblog/category-fr.xml") )
return "";
else
return null;
}
// Interface LSResourceResolver
public LSInput resolveResource(String type,
String namespaceURI,
String publicId,
String systemId,
String baseURI) {
String str = damlMagic(systemId);
if ( str != null )
return new DOMInputImpl(publicId, systemId, baseURI,
str, "UTF-8");
String resolved = resolve(namespaceURI, publicId, systemId, baseURI);
return new DOMInputImpl(publicId, resolved, baseURI);
}
// Interface EntityResolver
public InputSource resolveEntity(String publicId, String systemId)
throws SAXException {
String str = damlMagic(systemId);
if ( str != null ) {
InputSource source = new InputSource(new StringReader(str));
source.setPublicId(publicId);
return source;
}
String resolved = resolve(null, publicId, systemId, null);
InputSource source = new InputSource(resolved);
source.setPublicId(publicId);
return source;
}
// Interface EntityResolver2
public InputSource resolveEntity(String name, String publicId,
String baseURI, String systemId)
throws SAXException {
String str = damlMagic(systemId);
if ( str != null ) {
InputSource source = new InputSource(new StringReader(str));
source.setPublicId(publicId);
return source;
}
String resolved = resolve(null, publicId, systemId, baseURI);
InputSource source = new InputSource(resolved);
source.setPublicId(publicId);
return source;
}
public InputSource getExternalSubset(String name,
String baseURI) {
return null;
}
}
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