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package com.sun.xml.ws.util;
import com.sun.istack.NotNull;
import com.sun.xml.ws.api.server.SDDocument;
import com.sun.xml.ws.server.SDDocumentImpl;
import org.xml.sax.EntityResolver;
import java.util.*;
/**
* WSDL, schema document metadata utility class.
*
* @author Jitendra Kotamraju
*/
public class MetadataUtil {
/**
* Gets closure of all the referenced documents from the primary document(typically
* the service WSDL). It traverses the WSDL and schema imports and builds a closure
* set of documents.
*
* @param systemId primary wsdl or the any root document
* @param resolver used to get SDDocumentImpl for a document
* @param onlyTopLevelSchemas if true, the imported schemas from a schema would be ignored
* @return all the documents
*/
public static Map<String, SDDocument> getMetadataClosure(@NotNull String systemId,
@NotNull MetadataResolver resolver, boolean onlyTopLevelSchemas) {
Map <String, SDDocument> closureDocs = new HashMap<String, SDDocument>();
Set<String> remaining = new HashSet<String>();
remaining.add(systemId);
while(!remaining.isEmpty()) {
Iterator<String> it = remaining.iterator();
String current = it.next();
remaining.remove(current);
SDDocument currentDoc = resolver.resolveEntity(current);
SDDocument old = closureDocs.put(currentDoc.getURL().toExternalForm(), currentDoc);
assert old == null;
Set<String> imports = currentDoc.getImports();
if (!currentDoc.isSchema() || !onlyTopLevelSchemas) {
for(String importedDoc : imports) {
if (closureDocs.get(importedDoc) == null) {
remaining.add(importedDoc);
}
}
}
}
return closureDocs;
}
public interface MetadataResolver {
/**
* returns {@link SDDocumentImpl} for the give systemId. It
* parses the document and categorises as WSDL, schema etc.
* The implementation could use a catlog resolver or an entity
* resolver {@link EntityResolver} before parsing.
*
* @param systemId document's systemId
* @return document for the systemId
*/
@NotNull SDDocument resolveEntity(String systemId);
}
}