DataTransferer.java 文件源码

/**
 * Returns a Set of all DataFlavors for which
 * 1) a mapping from at least one of the specified formats exists in the
 * specified map and
 * 2) the data translation for this mapping can be performed by the data
 * transfer subsystem.
 *
 * @param formats the data formats
 * @param map the FlavorTable which contains mappings between
 *            DataFlavors and data formats
 * @throws NullPointerException if formats or map is <code>null</code>
 */
public Set getFlavorsForFormatsAsSet(long[] formats, FlavorTable map) {
    Set flavorSet = new HashSet(formats.length);

    for (int i = 0; i < formats.length; i++) {
        String nat = getNativeForFormat(formats[i]);
        List flavors = map.getFlavorsForNative(nat);

        for (Iterator iter = flavors.iterator(); iter.hasNext(); ) {
            DataFlavor flavor = (DataFlavor)iter.next();

            // Don't explicitly test for String, since it is just a special
            // case of Serializable
            if (flavor.isFlavorTextType() ||
                flavor.isFlavorJavaFileListType() ||
                DataFlavor.imageFlavor.equals(flavor) ||
                flavor.isRepresentationClassSerializable() ||
                flavor.isRepresentationClassInputStream() ||
                flavor.isRepresentationClassRemote())
            {
                flavorSet.add(flavor);
            }
        }
    }

    return flavorSet;
}