com.smartitengineering.event.hub.spi.hbase.persistents.ChannelAdapterHelper.java Source code

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Here is the source code for com.smartitengineering.event.hub.spi.hbase.persistents.ChannelAdapterHelper.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.spi.hbase.persistents;

import com.smartitengineering.event.hub.api.Channel;
import com.smartitengineering.event.hub.api.Filter.SupportedMimeType;
import com.smartitengineering.event.hub.api.impl.APIFactory;
import com.smartitengineering.event.hub.api.impl.APIFactory.ChannelBuilder;
import com.smartitengineering.util.bean.adapter.AbstractAdapterHelper;
import org.apache.commons.lang.StringUtils;
import org.apache.commons.lang.math.NumberUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

/**
 *
 * @author imyousuf
 */
public class ChannelAdapterHelper extends AbstractAdapterHelper<Channel, PersistentChannel> {

    protected transient final Logger logger = LoggerFactory.getLogger(getClass());

    @Override
    protected PersistentChannel newTInstance() {
        return new PersistentChannel();
    }

    @Override
    protected void mergeFromF2T(Channel fromBean, PersistentChannel toBean) {
        if (fromBean.getPosition() > 0) {
            toBean.setId(Long.MAX_VALUE - fromBean.getPosition());
        }
        toBean.setDescription(fromBean.getDescription());
        toBean.setAuthToken(fromBean.getAuthToken());
        toBean.setAutoExpiryDateTime(fromBean.getAutoExpiryDateTime());
        if (StringUtils.isNotBlank(fromBean.getName())) {
            toBean.setName(fromBean.getName().toLowerCase());
        }
        if (fromBean.getFilter() != null) {
            toBean.setFilterType(fromBean.getFilter().getMimeType().name());
            toBean.setScript(fromBean.getFilter().getFilterScript());
        }
    }

    @Override
    protected Channel convertFromT2F(PersistentChannel toBean) {
        final ChannelBuilder builder = APIFactory.getChannelBuilder(toBean.getName())
                .description(toBean.getDescription()).authToken(toBean.getAuthToken())
                .autoExpiryDateTime(toBean.getAutoExpiryDateTime()).creationDateTime(toBean.getCreationDateTime())
                .lastModifiedDate(toBean.getLastModifiedDateTime());
        int pos = -1;
        if (logger.isDebugEnabled()) {
            logger.debug("Channel ID " + toBean.getId());
        }
        if (toBean.getId() != null) {
            pos = NumberUtils.toInt(new Long(Long.MAX_VALUE - toBean.getId().longValue()).toString());
        }
        builder.position(pos);
        if (StringUtils.isNotBlank(toBean.getFilterType())) {
            builder.filter(
                    APIFactory.getFilter(SupportedMimeType.valueOf(toBean.getFilterType()), toBean.getScript()));
        }
        return builder.build();
    }
}