HasGroupIdToGroupIdRequestTransformer.java

/*
 * Copyright (c) 2010 Lockheed Martin Corporation
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.eurekastreams.server.action.request.transformer;

import java.io.Serializable;

import org.eurekastreams.commons.actions.context.ActionContext;
import org.eurekastreams.server.domain.HasGroupId;

/**
 * Extracts the group id from the request.
 */
public class HasGroupIdToGroupIdRequestTransformer implements RequestTransformer
{
    /**
     * Extracts the group id from the request.
     * 
     * @param inActionContext
     *            action context.
     * @return The group id.
     */
    @Override
    public Serializable transform(final ActionContext inActionContext)
    {
        // the authorizer expects a string and converts it back to a long, so we have to make it happy
        return Long.toString(((HasGroupId) inActionContext.getParams()).getGroupId());
    }

}