001    package org.apache.archiva.metadata.repository;
002    
003    /*
004     * Licensed to the Apache Software Foundation (ASF) under one
005     * or more contributor license agreements.  See the NOTICE file
006     * distributed with this work for additional information
007     * regarding copyright ownership.  The ASF licenses this file
008     * to you under the Apache License, Version 2.0 (the
009     * "License"); you may not use this file except in compliance
010     * with the License.  You may obtain a copy of the License at
011     *
012     *   http://www.apache.org/licenses/LICENSE-2.0
013     *
014     * Unless required by applicable law or agreed to in writing,
015     * software distributed under the License is distributed on an
016     * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
017     * KIND, either express or implied.  See the License for the
018     * specific language governing permissions and limitations
019     * under the License.
020     */
021    
022    import org.apache.archiva.metadata.model.ArtifactMetadata;
023    import org.apache.archiva.metadata.model.ProjectVersionMetadata;
024    import org.apache.archiva.metadata.model.ProjectVersionReference;
025    
026    import java.util.Collection;
027    
028    public interface MetadataResolver
029    {
030        ProjectVersionMetadata resolveProjectVersion( RepositorySession session, String repoId, String namespace,
031                                                      String projectId, String projectVersion )
032            throws MetadataResolutionException;
033    
034        /**
035         * Retrieve project references from the metadata repository. Note that this is not built into the content model for
036         * a project version as a reference may be present (due to reverse-lookup of dependencies) before the actual
037         * project is, and we want to avoid adding a stub model to the content repository.
038         *
039         * @param repoId         the repository ID to look within
040         * @param namespace      the namespace of the project to get references to
041         * @param projectId      the identifier of the project to get references to
042         * @param projectVersion the version of the project to get references to
043         * @return a list of project references
044         */
045        Collection<ProjectVersionReference> resolveProjectReferences( RepositorySession session, String repoId,
046                                                                      String namespace, String projectId,
047                                                                      String projectVersion )
048            throws MetadataResolutionException;
049    
050        Collection<String> resolveRootNamespaces( RepositorySession session, String repoId )
051            throws MetadataResolutionException;
052    
053        Collection<String> resolveNamespaces( RepositorySession session, String repoId, String namespace )
054            throws MetadataResolutionException;
055    
056        Collection<String> resolveProjects( RepositorySession session, String repoId, String namespace )
057            throws MetadataResolutionException;
058    
059        Collection<String> resolveProjectVersions( RepositorySession session, String repoId, String namespace,
060                                                   String projectId )
061            throws MetadataResolutionException;
062    
063        Collection<ArtifactMetadata> resolveArtifacts( RepositorySession session, String repoId, String namespace,
064                                                       String projectId, String projectVersion )
065            throws MetadataResolutionException;
066    }