001/*
002 * (C) Copyright 2006-2010 Nuxeo SA (http://nuxeo.com/) and others.
003 *
004 * Licensed under the Apache License, Version 2.0 (the "License");
005 * you may not use this file except in compliance with the License.
006 * You may obtain a copy of the License at
007 *
008 *     http://www.apache.org/licenses/LICENSE-2.0
009 *
010 * Unless required by applicable law or agreed to in writing, software
011 * distributed under the License is distributed on an "AS IS" BASIS,
012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013 * See the License for the specific language governing permissions and
014 * limitations under the License.
015 *
016 * Contributors:
017 *     bstefanescu
018 */
019package org.nuxeo.ecm.webengine.app.jersey;
020
021import java.lang.reflect.Type;
022import java.util.Set;
023
024import javax.ws.rs.core.Context;
025import javax.ws.rs.ext.Provider;
026
027import org.nuxeo.ecm.webengine.WebEngine;
028import org.nuxeo.ecm.webengine.app.WebEngineApplication;
029import org.nuxeo.ecm.webengine.model.WebContext;
030
031import com.sun.jersey.core.spi.component.ComponentContext;
032import com.sun.jersey.core.spi.component.ComponentScope;
033import com.sun.jersey.spi.inject.Injectable;
034import com.sun.jersey.spi.inject.InjectableProvider;
035
036/**
037 * Experimental - Can be used to inject WebContext through {@code @Context} annotation. Do not use it for now.
038 *
039 * @author <a href="mailto:[email protected]">Bogdan Stefanescu</a>
040 */
041@Provider
042public class JerseyApplication extends WebEngineApplication implements InjectableProvider<Context, Type> {
043
044    @Override
045    public Set<Object> getSingletons() {
046        Set<Object> set = super.getSingletons();
047        set.add(this);
048        return set;
049    }
050
051    public ComponentScope getScope() {
052        return ComponentScope.PerRequest;
053    }
054
055    public Injectable<?> getInjectable(ComponentContext cc, Context a, Type t) {
056        if (!(t instanceof Class<?>)) {
057            return null;
058        }
059        Class<?> c = (Class<?>) t;
060        if (c == WebContext.class) {
061            return new Injectable<Object>() {
062                public Object getValue() {
063                    return WebEngine.getActiveContext();
064                }
065            };
066        }
067        return null;
068    }
069
070}