com.smartitengineering.event.hub.core.AbstractChannelResource.java Source code

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Here is the source code for com.smartitengineering.event.hub.core.AbstractChannelResource.java

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/*
It is a application for event distribution to event n-consumers with m-sources.
Copyright (C) 2010 "Imran M Yousuf <imran@smartitengineering.com>"
    
This program 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 3 of the License, or any later
version.
    
This program 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 General Public License for more details.
    
You should have received a copy of the GNU General Public License
along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
package com.smartitengineering.event.hub.core;

import com.smartitengineering.event.hub.api.Channel;
import com.smartitengineering.event.hub.spi.HubPersistentStorer;
import com.smartitengineering.event.hub.spi.HubPersistentStorerSPI;
import com.smartitengineering.util.rest.atom.server.AbstractResource;
import javax.ws.rs.WebApplicationException;
import javax.ws.rs.core.Response;
import org.apache.commons.lang.StringUtils;

/**
 *
 * @author imyousuf
 */
public abstract class AbstractChannelResource extends AbstractResource {

    protected Channel checkChannelExistence() throws WebApplicationException {
        Channel channel = getChannel();
        if (channel == null) {
            throw new WebApplicationException(Response.status(Response.Status.NOT_FOUND).build());
        }
        return channel;
    }

    protected Channel getChannel() {
        final HubPersistentStorer storer = HubPersistentStorerSPI.getInstance().getStorer();
        Channel channel = storer.getChannel(getChannelName());
        return channel;
    }

    protected void checkAuthToken() {
        checkAuthToken(getChannel());
    }

    protected void checkAuthToken(Channel myChannel) {
        if (myChannel == null || !StringUtils.equals(getAuthToken(), myChannel.getAuthToken())) {
            throw new WebApplicationException(Response.Status.FORBIDDEN);
        }
    }

    @Override
    protected String getAuthor() {
        return "info@smartitengineering.com";
    }

    protected abstract String getChannelName();

    protected abstract String getAuthToken();
}