private List gatherDownloads()

in maven-resolver-impl/src/main/java/org/eclipse/aether/internal/impl/DefaultArtifactResolver.java [501:553]
45 lines of code
6 McCabe index (conditional complexity)

    private List<ArtifactDownload> gatherDownloads(RepositorySystemSession session, ResolutionGroup group) {
        LocalRepositoryManager lrm = session.getLocalRepositoryManager();
        List<ArtifactDownload> downloads = new ArrayList<>();

        for (ResolutionItem item : group.items) {
            Artifact artifact = item.artifact;

            if (item.resolved.get()) {
                // resolved in previous resolution group
                continue;
            }

            ArtifactDownload download = new ArtifactDownload();
            download.setArtifact(artifact);
            download.setRequestContext(item.request.getRequestContext());
            download.setListener(SafeTransferListener.wrap(session));
            download.setTrace(item.trace);
            if (item.local.getPath() != null) {
                download.setPath(item.local.getPath());
                download.setExistenceCheck(true);
            } else {
                download.setPath(lrm.getAbsolutePathForRemoteArtifact(
                        artifact, group.repository, item.request.getRequestContext()));
            }

            boolean snapshot = artifact.isSnapshot();
            RepositoryPolicy policy = remoteRepositoryManager.getPolicy(session, group.repository, !snapshot, snapshot);

            int errorPolicy = Utils.getPolicy(session, artifact, group.repository);
            if ((errorPolicy & ResolutionErrorPolicy.CACHE_ALL) != 0) {
                UpdateCheck<Artifact, ArtifactTransferException> check = new UpdateCheck<>();
                check.setItem(artifact);
                check.setPath(download.getPath());
                check.setFileValid(false);
                check.setRepository(group.repository);
                check.setArtifactPolicy(policy.getArtifactUpdatePolicy());
                check.setMetadataPolicy(policy.getMetadataUpdatePolicy());
                item.updateCheck = check;
                updateCheckManager.checkArtifact(session, check);
                if (!check.isRequired()) {
                    item.result.addException(group.repository, check.getException());
                    continue;
                }
            }

            download.setChecksumPolicy(policy.getChecksumPolicy());
            download.setRepositories(item.repository.getMirroredRepositories());
            downloads.add(download);
            item.download = download;
        }

        return downloads;
    }