001/*
002 * (C) Copyright 2006-2011 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.jaxrs.servlet.config;
020
021import javax.servlet.ServletException;
022
023import org.nuxeo.runtime.model.ComponentContext;
024import org.nuxeo.runtime.model.ComponentInstance;
025import org.nuxeo.runtime.model.DefaultComponent;
026import org.nuxeo.ecm.webengine.jaxrs.ApplicationManager;
027import org.osgi.service.http.NamespaceException;
028
029/**
030 * @author <a href="mailto:bs@nuxeo.com">Bogdan Stefanescu</a>
031 */
032public class ServletRegistryComponent extends DefaultComponent {
033
034    public static final String XP_SERVLETS = "servlets";
035
036    public static final String XP_FILTERS = "filters";
037
038    public static final String XP_RESOURCES = "resources";
039
040    public static final String XP_SUBRESOURCES = "subresources";
041
042    protected ServletRegistry registry;
043
044    public ServletRegistryComponent() {
045    }
046
047    @Override
048    public void activate(ComponentContext context) {
049        registry = ServletRegistry.getInstance();
050    }
051
052    @Override
053    public void deactivate(ComponentContext context) {
054        ServletRegistry.dispose();
055        registry = null;
056    }
057
058    @Override
059    public void registerContribution(Object contribution, String extensionPoint, ComponentInstance contributor) {
060        if (XP_SERVLETS.equals(extensionPoint)) {
061            ((ServletDescriptor) contribution).setBundle(contributor.getContext().getBundle());
062            try {
063                registry.addServlet((ServletDescriptor) contribution);
064            } catch (ServletException | NamespaceException e) {
065                throw new RuntimeException(e);
066            }
067        } else if (XP_FILTERS.equals(extensionPoint)) {
068            registry.addFilterSet((FilterSetDescriptor) contribution);
069        } else if (XP_RESOURCES.equals(extensionPoint)) {
070            ResourcesDescriptor rd = (ResourcesDescriptor) contribution;
071            rd.setBundle(contributor.getContext().getBundle());
072            registry.addResources(rd);
073        } else if (XP_SUBRESOURCES.equals(extensionPoint)) {
074            ResourceExtension rxt = (ResourceExtension) contribution;
075            rxt.setBundle(contributor.getContext().getBundle());
076            ApplicationManager.getInstance().getOrCreateApplication(rxt.getApplication()).addExtension(rxt);
077        }
078    }
079
080    @Override
081    public void unregisterContribution(Object contribution, String extensionPoint, ComponentInstance contributor) {
082        if (XP_SERVLETS.equals(extensionPoint)) {
083            registry.removeServlet((ServletDescriptor) contribution);
084        } else if (XP_FILTERS.equals(extensionPoint)) {
085            registry.removeFilterSet((FilterSetDescriptor) contribution);
086        } else if (XP_RESOURCES.equals(extensionPoint)) {
087            ResourcesDescriptor rd = (ResourcesDescriptor) contribution;
088            rd.setBundle(contributor.getContext().getBundle());
089            registry.removeResources(rd);
090        } else if (XP_SUBRESOURCES.equals(extensionPoint)) {
091            ResourceExtension rxt = (ResourceExtension) contribution;
092            rxt.setBundle(contributor.getContext().getBundle());
093            ApplicationManager.getInstance().getOrCreateApplication(rxt.getApplication()).removeExtension(rxt);
094        }
095    }
096
097}