/*
 * Copyright 2007-2009 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.gradle.api.internal.artifacts;

import org.gradle.api.artifacts.PublishArtifact;
import org.gradle.api.specs.Spec;

import java.util.Collections;
import java.util.Set;

/**
 * @author Hans Dockter
 */
public interface ArtifactContainer {
    static final ArtifactContainer EMPTY_CONTAINER = new ArtifactContainer() {
        public void addArtifacts(PublishArtifact... publishArtifacts) {
            throw new UnsupportedOperationException("You can add elements to EMPTY container");
        }

        public Set<PublishArtifact> getArtifacts() {
            return Collections.emptySet();
        }

        public Set<PublishArtifact> getArtifacts(Spec<PublishArtifact> spec) {
            return Collections.emptySet();
        }
    };


    void addArtifacts(PublishArtifact... publishArtifacts);

    Set<PublishArtifact> getArtifacts();

    Set<PublishArtifact> getArtifacts(Spec<PublishArtifact> spec);
}
