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package com.sun.jersey.server.wadl;
import com.sun.jersey.api.model.AbstractMethod;
import com.sun.jersey.api.model.AbstractResource;
import com.sun.jersey.api.model.AbstractResourceMethod;
import com.sun.jersey.api.model.Parameter;
import com.sun.jersey.core.util.FeaturesAndProperties;
import com.sun.research.ws.wadl.Application;
import com.sun.research.ws.wadl.Param;
import com.sun.research.ws.wadl.Representation;
import com.sun.research.ws.wadl.Request;
import com.sun.research.ws.wadl.Resource;
import com.sun.research.ws.wadl.Resources;
import com.sun.research.ws.wadl.Response;
import javax.ws.rs.ext.Providers;
import javax.ws.rs.core.MediaType;
import javax.xml.bind.annotation.XmlRegistry;
import javax.xml.namespace.QName;
import java.util.ArrayList;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map;
import javax.ws.rs.core.UriInfo;
/**
* A WadlGenerator creates artifacts related to wadl. This is designed as an interface,
* so that several implementations can decorate existing ones. One decorator could e.g. add
* references to definitions within some xsd for existing representations.
* Created on: Jun 16, 2008
*
* @author Martin Grotzke
* @version $Id$
*/
public interface WadlGenerator {
/**
* Sets the delegate that is decorated by this wadl generator. Is invoked directly after
* this generator is instantiated before {@link #init()} or any setter method is invoked.
* @param delegate the wadl generator to decorate
*/
void setWadlGeneratorDelegate( WadlGenerator delegate );
/**
* Invoked before all methods related to wadl-building are invoked. This method is used in a
* decorator like manner, and therefore has to invoke this.delegate.init().
* @throws Exception
*/
void init() throws Exception;
/**
* The jaxb context path that is used when the generated wadl application is marshalled
* to a file.
* This method is used in a decorator like manner.
* The result return the path (or a colon-separated list of package names) containing
* jaxb-beans that are added to wadl elements by this WadlGenerator, additionally to
* the context path of the decorated WadlGenerator (set by {@link #setWadlGeneratorDelegate(WadlGenerator)}.
* If you do not use custom jaxb beans, then simply return _delegate.getRequiredJaxbContextPath(),
* otherwise return the delegate's {@link #getRequiredJaxbContextPath()} together with
* your required context path (separated by a colon):
*
*
* If you add the path for your custom jaxb beans, don't forget to add an
* ObjectFactory (annotated with {@link XmlRegistry}) to this package.
* @return simply the {@link #getRequiredJaxbContextPath()} of the delegate or the
* {@link #getRequiredJaxbContextPath()} + ":" + ${yourContextPath}.
*/
String getRequiredJaxbContextPath();
/**
* A method parameter to make it easier to supply more environmental
* information later without break the existing API.
*/
public class Environment
{
private Providers providers;
private FeaturesAndProperties fap;
public Environment setProviders(Providers providers)
{
this.providers = providers;
return this;
}
public Providers getProviders() { return providers; }
public Environment setFeaturesAndProperties(FeaturesAndProperties fap)
{
this.fap = fap;
return this;
}
public FeaturesAndProperties getFeaturesAndProperties() { return fap; }
}
/**
* Provides the WadlGenerator with the current generating environment.
* This method is used in a decorator like manner, and therefore has to
* invoke this.delegate.setEnvironment(env).
*/
public void setEnvironment(Environment env);
// ================ methods for building the wadl application =============
public Application createApplication(UriInfo requestInfo);
public Resources createResources();
public Resource createResource(AbstractResource r,
String path);
public com.sun.research.ws.wadl.Method createMethod(AbstractResource r,
AbstractResourceMethod m);
public Request createRequest(AbstractResource r,
AbstractResourceMethod m);
public Representation createRequestRepresentation(AbstractResource r,
AbstractResourceMethod m,
MediaType mediaType);
public List createResponses(AbstractResource r,
AbstractResourceMethod m);
public Param createParam(AbstractResource r,
AbstractMethod m,
Parameter p);
// ================ methods for post build actions =======================
/**
* Call back interface that the create external grammar can use
* to allow other parts of the code to attach the correct grammar information
*/
public interface Resolver
{
/**
* @param resolvedType The type of the element to result, for XML Schema
* this is going to be QName, for JSON Schema URI. If the resolver
* doesn't recognise this type then it should return null.
* @param wadlType The type of the class
* @param mt The media type it needs to be resolve relative to.
* @return The schema type of the class if defined, null if not.
*/
public T resolve(Class wadlType, MediaType mt, Class resolvedType);
}
/**
* And internal storage object to store the grammar definitions and
* any type resolvers that are created along the way.
*/
public class ExternalGrammarDefinition {
// final public field to make a property was thinking about encapsulation
// but decided code much simpler without
public final Map
map = new LinkedHashMap();
private List typeResolvers = new ArrayList();
public void addResolver(Resolver resolver) {
assert !typeResolvers.contains(resolver) : "Already in list";
typeResolvers.add(0,resolver);
}
/**
* @param type the class to map
* @return The resolved qualified name if one is defined.
*/
public T resolve(Class type, MediaType mt, Class resolvedType) {
T name = null;
found : for (Resolver resolver : typeResolvers) {
name = resolver.resolve(type, mt, resolvedType);
if (name!=null) break found;
}
return name;
}
}
/**
* Perform any post create functions such as generating grammars.
* @return A map of extra files to the content of those file encoded in UTF-8
* @throws Exception
*/
public ExternalGrammarDefinition createExternalGrammar();
/**
* Process the elements in the WADL definition to attach schema types
* as required.
* @param description The root description used to resolve these entries
*/
public void attachTypes(ApplicationDescription description);
}
