com.sitewhere.mongodb.device.MongoDeviceStream.java Source code

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Here is the source code for com.sitewhere.mongodb.device.MongoDeviceStream.java

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/*
 * Copyright (c) SiteWhere, LLC. All rights reserved. http://www.sitewhere.com
 *
 * The software in this package is published under the terms of the CPAL v1.0
 * license, a copy of which has been included with this distribution in the
 * LICENSE.txt file.
 */
package com.sitewhere.mongodb.device;

import com.mongodb.BasicDBObject;
import com.mongodb.DBObject;
import com.sitewhere.mongodb.MongoConverter;
import com.sitewhere.mongodb.common.MongoMetadataProvider;
import com.sitewhere.mongodb.common.MongoSiteWhereEntity;
import com.sitewhere.rest.model.device.streaming.DeviceStream;
import com.sitewhere.spi.device.streaming.IDeviceStream;

/**
 * Handles loading/saving {@link DeviceStream} objects to a MongoDB datastore.
 * 
 * @author Derek
 */
public class MongoDeviceStream implements MongoConverter<IDeviceStream> {

    /** Property for parent assignment token */
    public static final String PROP_ASSIGNMENT_TOKEN = "assignmentToken";

    /** Property for stream id */
    public static final String PROP_STREAM_ID = "streamId";

    /** Property for content type */
    public static final String PROP_CONTENT_TYPE = "contentType";

    /*
     * (non-Javadoc)
     * 
     * @see com.sitewhere.mongodb.MongoConverter#convert(java.lang.Object)
     */
    @Override
    public BasicDBObject convert(IDeviceStream source) {
        return MongoDeviceStream.toDBObject(source);
    }

    /*
     * (non-Javadoc)
     * 
     * @see com.sitewhere.mongodb.MongoConverter#convert(com.mongodb.DBObject)
     */
    @Override
    public IDeviceStream convert(DBObject source) {
        return MongoDeviceStream.fromDBObject(source);
    }

    /**
     * Copy information from SPI into Mongo DBObject.
     * 
     * @param source
     * @param target
     */
    public static void toDBObject(IDeviceStream source, BasicDBObject target) {
        target.append(PROP_ASSIGNMENT_TOKEN, source.getAssignmentToken());
        target.append(PROP_STREAM_ID, source.getStreamId());
        target.append(PROP_CONTENT_TYPE, source.getContentType());

        MongoSiteWhereEntity.toDBObject(source, target);
        MongoMetadataProvider.toDBObject(source, target);
    }

    /**
     * Copy information from Mongo DBObject to model object.
     * 
     * @param source
     * @param target
     */
    public static void fromDBObject(DBObject source, DeviceStream target) {
        String assignmentToken = (String) source.get(PROP_ASSIGNMENT_TOKEN);
        String streamId = (String) source.get(PROP_STREAM_ID);
        String contentType = (String) source.get(PROP_CONTENT_TYPE);

        target.setAssignmentToken(assignmentToken);
        target.setStreamId(streamId);
        target.setContentType(contentType);

        MongoSiteWhereEntity.fromDBObject(source, target);
        MongoMetadataProvider.fromDBObject(source, target);
    }

    /**
     * Convert SPI object to Mongo DBObject.
     * 
     * @param source
     * @return
     */
    public static BasicDBObject toDBObject(IDeviceStream source) {
        BasicDBObject result = new BasicDBObject();
        MongoDeviceStream.toDBObject(source, result);
        return result;
    }

    /**
     * Convert a DBObject into the SPI equivalent.
     * 
     * @param source
     * @return
     */
    public static DeviceStream fromDBObject(DBObject source) {
        DeviceStream result = new DeviceStream();
        MongoDeviceStream.fromDBObject(source, result);
        return result;
    }
}