/**
     * Creates a fingerprint of the contents of the given collection.
     */
    CurrentFileCollectionFingerprint fingerprint(FileCollection files);

    /**
     * Creates a fingerprint from the snapshot of a file collection.
     */
    CurrentFileCollectionFingerprint fingerprint(FileSystemSnapshot snapshot, @Nullable FileCollectionFingerprint previousFingerprint);

    /**

    }

    @Override
    public CurrentFileCollectionFingerprint fingerprint(FileCollection files) {
        FileCollectionSnapshotter.Result snapshotResult = fileCollectionSnapshotter.snapshot(files);
        return fingerprint(snapshotResult.getSnapshot(), null);
    }

    @Override

        FilePropertyVisitState state = new FilePropertyVisitState(visitor, propertySpecsByName);
        for (Map.Entry<String, CurrentFileCollectionFingerprint> entry : inputFileProperties.entrySet()) {
            CurrentFileCollectionFingerprint fingerprint = entry.getValue();

            state.propertyName = entry.getKey();
            state.propertyHash = fingerprint.getHash();

import org.gradle.internal.fingerprint.CurrentFileCollectionFingerprint;
import org.gradle.internal.snapshot.ValueSnapshot;

public class IdentityContext extends ExecutionRequestContext {

    private final ImmutableSortedMap<String, ValueSnapshot> inputProperties;
    private final ImmutableSortedMap<String, CurrentFileCollectionFingerprint> inputFileProperties;
    private final Identity identity;

import com.google.common.collect.ImmutableSortedMap;
import com.google.common.collect.Maps;
import org.gradle.api.InvalidUserDataException;
import org.gradle.internal.fingerprint.CurrentFileCollectionFingerprint;
import org.gradle.internal.fingerprint.FileCollectionFingerprint;

public class DefaultIncrementalInputProperties implements IncrementalInputProperties {

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

package org.gradle.internal.fingerprint.impl;

import org.gradle.internal.fingerprint.CurrentFileCollectionFingerprint;
import org.gradle.internal.fingerprint.FingerprintingStrategy;
import org.gradle.internal.fingerprint.hashing.ConfigurableNormalizer;
import org.gradle.internal.fingerprint.hashing.FileSystemLocationSnapshotHasher;

import org.gradle.internal.execution.InputFingerprinter;
import org.gradle.internal.execution.workspace.ImmutableWorkspaceProvider;
import org.gradle.internal.fingerprint.CurrentFileCollectionFingerprint;
import org.gradle.internal.operations.BuildOperationProgressEventEmitter;
import org.gradle.internal.operations.BuildOperationRunner;
import org.gradle.internal.snapshot.ValueSnapshot;

import java.io.File;

 * limitations under the License.
 */

package org.gradle.internal.execution.history;

import com.google.common.collect.ImmutableSortedMap;
import org.gradle.internal.fingerprint.CurrentFileCollectionFingerprint;
import org.gradle.internal.hash.HashCode;

/**
 * Captures the state of a {@link org.gradle.internal.execution.UnitOfWork} after it has been executed.
 *

    def knownSnapshot = Mock(ValueSnapshot)
    def knownFileFingerprint = Mock(CurrentFileCollectionFingerprint)
    def knownInputProperties = ImmutableSortedMap.<String, ValueSnapshot> of()
    def knownInputFileProperties = ImmutableSortedMap.<String, CurrentFileCollectionFingerprint> of()
    def sourceFileFingerprint = Mock(CurrentFileCollectionFingerprint)

    abstract protected AbstractSkipEmptyWorkStep<C> createStep()

 */

package org.gradle.internal.fingerprint.impl;

import com.google.common.collect.ImmutableMultimap;
import com.google.common.collect.Iterables;
import org.gradle.internal.fingerprint.CurrentFileCollectionFingerprint;
import org.gradle.internal.fingerprint.FileCollectionFingerprint;
import org.gradle.internal.fingerprint.FileSystemLocationFingerprint;
import org.gradle.internal.fingerprint.FingerprintHashingStrategy;