* See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.gradle.internal.execution.history.changes;

public interface PropertyDiffListener<K, VP, VC> {
    boolean removed(K previousProperty);

    boolean added(K currentProperty);

    boolean updated(K property, VP previous, VC current);

import java.util.SortedMap;

public class SortedMapDiffUtil {

    private SortedMapDiffUtil() {}

    public static <K, VP, VC> boolean diff(SortedMap<K, ? extends VP> previous, SortedMap<K, ? extends VC> current, PropertyDiffListener<K, VP, VC> diffListener) {
        Iterator<? extends Map.Entry<K, ? extends VC>> currentEntries = current.entrySet().iterator();

        this.current = current;
        this.title = title;
    }

    @Override
    public boolean accept(ChangeVisitor visitor) {
        return SortedMapDiffUtil.diff(previous, current, new PropertyDiffListener<String, FileCollectionFingerprint, CurrentFileCollectionFingerprint>() {
            @Override
            public boolean removed(String previousProperty) {
                return true;
            }

        Map result = [added: [], removed: [], updated: []]
        SortedMapDiffUtil.diff(previousMap, currentMap, new PropertyDiffListener<String, String, String>() {
            @Override
            boolean removed(String previousProperty) {
                result.removed.add(previousProperty)
                return true
            }

        this.previous = previous;
        this.current = current;
    }

    @Override
    public boolean accept(ChangeVisitor visitor) {
        return SortedMapDiffUtil.diff(previous, current, new PropertyDiffListener<String, FileSystemSnapshot, FileSystemSnapshot>() {
            @Override
            public boolean removed(String previousProperty) {
                return true;
            }

            @Override