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• WadlMethodFactory.java

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/*
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 *
 * Copyright (c) 2010-2013 Oracle and/or its affiliates. All rights reserved.
 *
 * The contents of this file are subject to the terms of either the GNU
 * General Public License Version 2 only ("GPL") or the Common Development
 * and Distribution License("CDDL") (collectively, the "License").  You
 * may not use this file except in compliance with the License.  You can
 * obtain a copy of the License at
 * http://glassfish.java.net/public/CDDL+GPL_1_1.html
 * or packager/legal/LICENSE.txt.  See the License for the specific
 * language governing permissions and limitations under the License.
 *
 * When distributing the software, include this License Header Notice in each
 * file and include the License file at packager/legal/LICENSE.txt.
 *
 * GPL Classpath Exception:
 * Oracle designates this particular file as subject to the "Classpath"
 * exception as provided by Oracle in the GPL Version 2 section of the License
 * file that accompanied this code.
 *
 * Modifications:
 * If applicable, add the following below the License Header, with the fields
 * enclosed by brackets [] replaced by your own identifying information:
 * "Portions Copyright [year] [name of copyright owner]"
 *
 * Contributor(s):
 * If you wish your version of this file to be governed by only the CDDL or
 * only the GPL Version 2, indicate your decision by adding "[Contributor]
 * elects to include this software in this distribution under the [CDDL or GPL
 * Version 2] license."  If you don't indicate a single choice of license, a
 * recipient has the option to distribute your version of this file under
 * either the CDDL, the GPL Version 2 or to extend the choice of license to
 * its licensees as provided above.  However, if you add GPL Version 2 code
 * and therefore, elected the GPL Version 2 license, then the option applies
 * only if the new code is made subject to such option by the copyright
 * holder.
 */

package com.sun.jersey.server.impl.wadl;

import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.List;
import java.util.Map;
import java.util.logging.Level;
import java.util.logging.Logger;

import javax.ws.rs.core.MediaType;
import javax.ws.rs.core.Response;
import javax.ws.rs.core.Variant;

import com.sun.jersey.api.core.HttpContext;
import com.sun.jersey.api.model.AbstractResource;
import com.sun.jersey.api.uri.UriTemplate;
import com.sun.jersey.core.header.MediaTypes;
import com.sun.jersey.server.impl.model.method.ResourceHttpOptionsMethod;
import com.sun.jersey.server.impl.model.method.ResourceMethod;
import com.sun.jersey.server.wadl.WadlApplicationContext;

import com.sun.research.ws.wadl.Application;

/**
 *
 * @author [email protected]
 */
/* package */ final class WadlMethodFactory {

    public static final class WadlOptionsMethod extends ResourceMethod {
        public WadlOptionsMethod(Map> methods,
                                 AbstractResource resource, String path,
                                 WadlApplicationContext wadlApplicationContext) {
            super("OPTIONS",
                    UriTemplate.EMPTY,
                    MediaTypes.GENERAL_MEDIA_TYPE_LIST,
                    MediaTypes.GENERAL_MEDIA_TYPE_LIST,
                    false,
                    new WadlOptionsMethodDispatcher(methods, resource, path, wadlApplicationContext));
        }

        @Override
        public String toString() {
            return "WADL OPTIONS method" ;
        }
    }

    private static final class WadlOptionsMethodDispatcher extends
            ResourceHttpOptionsMethod.OptionsRequestDispatcher {
        private final AbstractResource resource;
        private final String path;
        private final WadlApplicationContext wadlApplicationContext;
        private final String lastModified;

        private static final Logger LOGGER = Logger.getLogger(WadlOptionsMethodDispatcher.class.getName());

        WadlOptionsMethodDispatcher(Map> methods,
                                    AbstractResource resource, String path,
                                    WadlApplicationContext wadlApplicationContext) {
            super(methods);
            this.resource = resource;
            this.path = path;
            this.wadlApplicationContext = wadlApplicationContext;
            this.lastModified = new SimpleDateFormat(WadlResource.HTTPDATEFORMAT).format(new Date());
        }

        @Override
        public void dispatch(final Object o, final HttpContext context) {
            if(wadlApplicationContext.isWadlGenerationEnabled()) {
                final Application a = wadlApplicationContext.getApplication(
                        context.getUriInfo(),
                        resource, path);

                List vl = Variant.mediaTypes(MediaTypes.WADL, MediaTypes.WADL_JSON, MediaType.APPLICATION_XML_TYPE)
                        .add().build();
                Variant v = context.getRequest().selectVariant(vl);
                if (v == null) {
                    context.getResponse().setResponse(
                            Response.noContent().header("Allow", allow).header("Last-modified", lastModified).build());
                }
                else {
                    try {
                        // TODO more gracefully detect that JAX-B -> JSON
                        // is not available

                        context.getResponse().setResponse(
                                Response.ok(a, v).
                                        header("Allow", allow).header("Last-modified", lastModified).build());
                    } catch (Exception e) {
                        LOGGER.log(Level.WARNING, "Could not marshal wadl Application.", e);

                        context.getResponse().setResponse(
                                Response.noContent().header("Allow", allow).build());
                    }
                }
            } else {
                context.getResponse().setResponse(
                        Response.noContent().header("Allow", allow).build());
            }
        }
    }

}