Examples with DepthSearch org.locationtech.geogig.repository.DepthSearch used on opensource projects

Example 11 with DepthSearch

use of org.locationtech.geogig.repository.DepthSearch in project GeoGig by boundlessgeo.

the class FindTreeChild method _call.

/**
     * Executes the command.
     * 
     * @return an {@code Optional} that contains the Node if it was found, or
     *         {@link Optional#absent()} if it wasn't
     */
@Override
protected Optional<NodeRef> _call() {
    checkNotNull(childPath, "childPath");
    final RevTree tree;
    if (parent == null) {
        ObjectId rootTreeId = command(ResolveTreeish.class).setTreeish(Ref.HEAD).call().get();
        if (rootTreeId.isNull()) {
            return Optional.absent();
        }
        tree = command(RevObjectParse.class).setObjectId(rootTreeId).call(RevTree.class).get();
    } else {
        tree = parent.get();
    }
    final String path = childPath;
    final String parentPath = this.parentPath == null ? "" : this.parentPath;
    final ObjectDatabase target = indexDb ? stagingDatabase() : objectDatabase();
    DepthSearch depthSearch = new DepthSearch(target);
    Optional<NodeRef> childRef = depthSearch.find(tree, parentPath, path);
    return childRef;
}