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package org.glassfish.web;
import com.sun.enterprise.util.MapBuilder;
import org.apache.catalina.startup.Constants;
import org.glassfish.internal.api.ServerContext;
import org.jvnet.hk2.annotations.ContractsProvided;
import javax.inject.Inject;
import org.jvnet.hk2.annotations.Service;
import org.glassfish.hk2.api.PostConstruct;
import org.xml.sax.EntityResolver;
import org.xml.sax.InputSource;
import org.xml.sax.SAXException;
import java.io.File;
import java.io.IOException;
import java.util.Map;
/**
* {@link EntityResolver} that recognizes known public IDs of JavaEE DTDs/schemas
* and return a local copy.
*
*
* This implementation assumes that those files are available in
* $INSTALL_ROOT/lib/schemas and $INSTALL_ROOT/lib/dtds,
* but in different environment, different implementation can be plugged in
* to perform entirely different resolution.
*
* @author Kohsuke Kawaguchi
*/
@Service(name="web")
@ContractsProvided({WebEntityResolver.class, EntityResolver.class})
public class WebEntityResolver implements EntityResolver, PostConstruct {
@Inject
ServerContext serverContext;
private File dtdDir;
/**
* Known DTDs.
*
* Expose the map so that interested party can introspect the table value and modify them.
*/
public final Map()
.put(Constants.TldDtdPublicId_11,"web-jsptaglibrary_1_1.dtd")
.put(Constants.TldDtdPublicId_12,"web-jsptaglibrary_1_2.dtd")
.put(Constants.WebDtdPublicId_22,"web-app_2_2.dtd")
.put(Constants.WebDtdPublicId_23,"web-app_2_3.dtd")
.build();
public void postConstruct() {
File root = serverContext.getInstallRoot();
File libRoot = new File(root, "lib");
dtdDir = new File(libRoot, "dtds");
}
/**
* If the parser hits one of the well-known DTDs, parse local copies instead of hitting
* the remote server.
*/
public InputSource resolveEntity(String publicId, String systemId) throws SAXException, IOException {
String fileName = knownDTDs.get(publicId);
if(fileName!=null) {
File dtd = new File(dtdDir,fileName);
if(dtd.exists())
return new InputSource(dtd.toURI().toString());
}
return null;
}
}