001/*
002 * Licensed to the Apache Software Foundation (ASF) under one
003 * or more contributor license agreements.  See the NOTICE file
004 * distributed with this work for additional information
005 * regarding copyright ownership.  The ASF licenses this file
006 * to you under the Apache License, Version 2.0 (the
007 * "License"); you may not use this file except in compliance
008 * with the License.  You may obtain a copy of the License at
009 *
010 *   http://www.apache.org/licenses/LICENSE-2.0
011 *
012 * Unless required by applicable law or agreed to in writing,
013 * software distributed under the License is distributed on an
014 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
015 * KIND, either express or implied.  See the License for the
016 * specific language governing permissions and limitations
017 * under the License.
018 */
019package org.eclipse.aether.spi.artifact;
020
021import org.eclipse.aether.artifact.Artifact;
022
023/**
024 * An artifact predicate.
025 *
026 * @since 2.0.0
027 */
028public interface ArtifactPredicate {
029    /**
030     * Returns {@code true} if passed in artifact should have checksums.
031     * <p>
032     * Artifact should have checksum if it is not a checksum artifact, or any artifact that has been configured (in
033     * session) that should not have them.
034     */
035    default boolean hasChecksums(Artifact artifact) {
036        return !isWithoutChecksum(artifact) && !isChecksum(artifact);
037    }
038
039    /**
040     * Returns {@code true} if passed in artifact is configured to not have checksums.
041     */
042    boolean isWithoutChecksum(Artifact artifact);
043
044    /**
045     * Returns {@code true} if passed in artifact is a checksum artifact.
046     */
047    boolean isChecksum(Artifact artifact);
048}