ResteasyContextParams.java

/*
 * Copyright 2012, Stuart Douglas, and individual contributors as indicated
 * by the @authors tag.
 *
 * This is free software; you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License as
 * published by the Free Software Foundation; either version 2.1 of
 * the License, or (at your option) any later version.
 *
 * This software is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this software; if not, write to the Free
 * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
 * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
 */

package org.hotswap.agent.plugin.resteasy;

import java.util.Enumeration;
import java.util.HashSet;
import java.util.Set;

import javax.servlet.ServletContext;

/**
 * @author Stuart Douglas
 */
public class ResteasyContextParams {

    public static Set<String> init(final ServletContext context, final Set<String> existing) {
        if(existing != null) {
            return existing;
        }
        final Set<String> ret = new HashSet<String>();
        Enumeration names = context.getAttributeNames();
        while (names.hasMoreElements()) {
            ret.add((String) names.nextElement());
        }
        return ret;
    }
}