bulkretrievalthread.java

来自「world wind java sdk 源码」· Java 代码 · 共 85 行

package gov.nasa.worldwind.retrieve;

import gov.nasa.worldwind.geom.Sector;
import gov.nasa.worldwind.util.Logging;

/**
 * Retrieves data for a {@link BulkRetrievable}.
 *
 * @author Patrick Murris
 * @version $Id: BulkRetrievalThread.java 10192 2009-04-14 21:12:31Z patrickmurris $
 */
public abstract class BulkRetrievalThread extends Thread
{
    protected int RETRIEVAL_SERVICE_POLL_DELAY = 10000; // 10 sec

    protected final BulkRetrievable retrievable;
    protected final Sector sector;
    protected final double resolution;
    protected final Progress progress;

    public BulkRetrievalThread(BulkRetrievable retrievable, Sector sector, double resolution)
    {
        if (retrievable == null)
        {
            String msg = Logging.getMessage("nullValue.RetrievableIsNull");
            Logging.logger().severe(msg);
            throw new IllegalArgumentException(msg);
        }
        if (sector == null)
        {
            String msg = Logging.getMessage("nullValue.SectorIsNull");
            Logging.logger().severe(msg);
            throw new IllegalArgumentException(msg);
        }

        this.retrievable = retrievable;
        this.sector = sector;
        this.resolution = resolution;
        this.progress = new Progress();
    }

    public abstract void run();

    /**
     * Get the {@link BulkRetrievable} instance for which this thread acts.
     *
     * @return the {@link BulkRetrievable} instance.
     */
    public BulkRetrievable getRetrievable()
    {
        return this.retrievable;
    }

    /**
     * Get the requested {@link Sector}.
     *
     * @return the requested {@link Sector}.
     */
    public Sector getSector()
    {
        return this.sector;
    }

    /**
     * Get the requested resolution.
     *
     * @return the requested resolution.
     */
    public double getResolution()
    {
        return this.resolution;
    }

    /**
     * Get a {@link Progress} instance providing information about this task progress.
     *
     * @return a {@link Progress} instance providing information about this task progress.
     */
    public Progress getProgress()
    {
        return this.progress;
    }

}