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/*
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 *
 * Copyright (c) 2012-2014 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:
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 * 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:
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 * 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
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 */
package org.glassfish.jersey.servlet;

import java.util.Collection;
import java.util.Iterator;

import javax.servlet.http.HttpServletRequest;

import org.glassfish.jersey.internal.PropertiesDelegate;

import jersey.repackaged.com.google.common.collect.Iterators;
import jersey.repackaged.com.google.common.collect.Lists;

/**
 * @author Martin Matula (martin.matula at oracle.com)
 */
class ServletPropertiesDelegate implements PropertiesDelegate {
    private final HttpServletRequest request;

    public ServletPropertiesDelegate(HttpServletRequest request) {
        this.request = request;
    }

    @Override
    public Object getProperty(String name) {
        return request.getAttribute(name);
    }

    @Override
    public Collection getPropertyNames() {
        return Lists.newLinkedList(new Iterable() {
            @Override
            @SuppressWarnings("unchecked")
            public Iterator iterator() {
                return Iterators.forEnumeration(request.getAttributeNames());
            }
        });
    }

    @Override
    public void setProperty(String name, Object object) {
        request.setAttribute(name, object);
    }

    @Override
    public void removeProperty(String name) {
        request.removeAttribute(name);
    }
}