URLNotification.java

/*
 * URLNotification
 */
package gov.usgs.earthquake.distribution;

import gov.usgs.earthquake.product.ProductId;
import java.net.URL;
import java.util.Date;

/**
 * A URLNotification represents a product that is available via a URL.
 */
public class URLNotification extends DefaultNotification {

    /** Location where product is available. */
    private final URL productURL;

    /**
     * Construct a URLNotification.
     *
     * @param id
     *            which product is available.
     * @param expirationDate
     *            how long the product is available.
     * @param trackerURL
     *            where to send status updates.
     * @param productURL
     *            where product is available.
     */
    public URLNotification(ProductId id, Date expirationDate, URL trackerURL,
            URL productURL) {
        super(id, expirationDate, trackerURL);
        this.productURL = productURL;
    }

    /**
     * @return Location where this product can be downloaded.
     */
    public URL getProductURL() {
        return productURL;
    }

    /** A comparison method to see if two notifications are equal. */
    public boolean equals(Notification that) {
        return (that instanceof URLNotification
                && getExpirationDate().equals(that.getExpirationDate())
                && getProductId().equals(that.getProductId())
                && (
                    (getTrackerURL() == null && that.getTrackerURL() == null)
                    || getTrackerURL().equals(that.getTrackerURL()))
                && (
                    (getProductURL() == null
                        && ((URLNotification) that).getProductURL() == null)
                    || getProductURL().equals(((URLNotification) that).getProductURL())));
    }

}