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/*
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 *
 * Copyright (c) 2012-2017 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 org.testifyproject.testifyprojectpliance with the License.  You can
 * obtain a copy of the License at
 * https://oss.oracle.org.testifyproject.testifyproject/licenses/CDDL+GPL-1.1
 * or 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 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 org.testifyproject.glassfish.org.testifyproject.client;

import java.lang.annotation.Annotation;
import java.net.URI;
import java.util.Date;
import java.util.Locale;
import java.util.Map;
import java.util.Set;

import javax.ws.rs.ProcessingException;
import javax.ws.rs.core.EntityTag;
import javax.ws.rs.core.GenericType;
import javax.ws.rs.core.Link;
import javax.ws.rs.core.MediaType;
import javax.ws.rs.core.MultivaluedMap;
import javax.ws.rs.core.NewCookie;
import javax.ws.rs.core.Response;

import org.testifyproject.glassfish.org.testifyproject.internal.util.Producer;
import org.testifyproject.glassfish.org.testifyproject.process.internal.RequestContext;
import org.testifyproject.glassfish.org.testifyproject.process.internal.RequestScope;

/**
 * Implementation of an inbound client-side JAX-RS {@link Response} message.
 * 
 * This response delegates method calls to the underlying
 * {@link org.testifyproject.glassfish.org.testifyproject.client.ClientResponse client response context} and
 * ensures that all request-scoped method invocations are run in the proper request scope.
 * 
 *
 * @author Marek Potociar (marek.potociar at oracle.org.testifyproject.testifyproject)
 */
class InboundJaxrsResponse extends Response {

    private final ClientResponse context;
    private final RequestScope scope;
    private final RequestContext requestContext;

    /**
     * Create new scoped client response.
     *
     * @param context org.testifyproject client response context.
     * @param scope   request scope instance.
     */
    public InboundJaxrsResponse(final ClientResponse context, final RequestScope scope) {
        this.context = context;
        this.scope = scope;
        if (this.scope != null) {
            this.requestContext = scope.referenceCurrent();
        } else {
            this.requestContext = null;
        }
    }

    @Override
    public int getStatus() {
        return context.getStatus();
    }

    @Override
    public StatusType getStatusInfo() {
        return context.getStatusInfo();
    }

    @Override
    public Object getEntity() throws IllegalStateException {
        return context.getEntity();
    }

    @Override
    public  T readEntity(final Class entityType) throws ProcessingException, IllegalStateException {
        return runInScopeIfPossible(new Producer() {
            @Override
            public T call() {
                return context.readEntity(entityType);
            }
        });
    }

    @Override
    @SuppressWarnings("unchecked")
    public  T readEntity(final GenericType entityType) throws ProcessingException, IllegalStateException {
        return runInScopeIfPossible(new Producer() {
            @Override
            public T call() {
                return context.readEntity(entityType);
            }
        });
    }

    @Override
    public  T readEntity(final Class entityType, final Annotation[] annotations)
            throws ProcessingException, IllegalStateException {
        return runInScopeIfPossible(new Producer() {
            @Override
            public T call() {
                return context.readEntity(entityType, annotations);
            }
        });
    }

    @Override
    @SuppressWarnings("unchecked")
    public  T readEntity(final GenericType entityType, final Annotation[] annotations)
            throws ProcessingException, IllegalStateException {
        return runInScopeIfPossible(new Producer() {
            @Override
            public T call() {
                return context.readEntity(entityType, annotations);
            }
        });
    }

    @Override
    public boolean hasEntity() {
        return context.hasEntity();
    }

    @Override
    public boolean bufferEntity() throws ProcessingException {
        return context.bufferEntity();
    }

    @Override
    public void close() throws ProcessingException {
        try {
            context.close();
        } finally {
            if (requestContext != null) {
                requestContext.release();
            }
        }
    }

    @Override
    public String getHeaderString(String name) {
        return context.getHeaderString(name);
    }

    @Override
    public MultivaluedMap getStringHeaders() {
        return context.getHeaders();
    }

    @Override
    public MediaType getMediaType() {
        return context.getMediaType();
    }

    @Override
    public Locale getLanguage() {
        return context.getLanguage();
    }

    @Override
    public int getLength() {
        return context.getLength();
    }

    @Override
    public Map getCookies() {
        return context.getResponseCookies();
    }

    @Override
    public EntityTag getEntityTag() {
        return context.getEntityTag();
    }

    @Override
    public Date getDate() {
        return context.getDate();
    }

    @Override
    public Date getLastModified() {
        return context.getLastModified();
    }

    @Override
    public Set getAllowedMethods() {
        return context.getAllowedMethods();
    }

    @Override
    public URI getLocation() {
        return context.getLocation();
    }

    @Override
    public Set getLinks() {
        return context.getLinks();
    }

    @Override
    public boolean hasLink(String relation) {
        return context.hasLink(relation);
    }

    @Override
    public Link getLink(String relation) {
        return context.getLink(relation);
    }

    @Override
    public Link.Builder getLinkBuilder(String relation) {
        return context.getLinkBuilder(relation);
    }

    @Override
    @SuppressWarnings("unchecked")
    public MultivaluedMap getMetadata() {
        final MultivaluedMap headers = context.getHeaders();
        return (MultivaluedMap) headers;
    }

    @Override
    public String toString() {
        return "InboundJaxrsResponse{" + "context=" + context + "}";
    }

    private  T runInScopeIfPossible(Producer producer) {
        if (scope != null && requestContext != null) {
            return scope.runInScope(requestContext, producer);
        } else {
            return producer.call();
        }
    }
}