package io.lumify.web.routes.workspace;
import com.google.inject.Inject;
import io.lumify.core.config.Configuration;
import io.lumify.core.model.user.UserRepository;
import io.lumify.core.model.workspace.Workspace;
import io.lumify.core.model.workspace.WorkspaceEntity;
import io.lumify.core.model.workspace.WorkspaceRepository;
import io.lumify.core.user.User;
import io.lumify.core.util.ClientApiConverter;
import io.lumify.core.util.LumifyLogger;
import io.lumify.core.util.LumifyLoggerFactory;
import io.lumify.miniweb.HandlerChain;
import io.lumify.web.BaseRequestHandler;
import io.lumify.web.clientapi.model.ClientApiWorkspaceVertices;
import org.securegraph.Authorizations;
import org.securegraph.Graph;
import org.securegraph.Vertex;
import org.securegraph.util.LookAheadIterable;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.util.Iterator;
import java.util.List;
public class WorkspaceVertices extends BaseRequestHandler {
private static final LumifyLogger LOGGER = LumifyLoggerFactory.getLogger(WorkspaceVertices.class);
private final Graph graph;
private final WorkspaceRepository workspaceRepository;
@Inject
public WorkspaceVertices(
final Graph graph,
final UserRepository userRepository,
final Configuration configuration,
final WorkspaceRepository workspaceRepository) {
super(userRepository, workspaceRepository, configuration);
this.graph = graph;
this.workspaceRepository = workspaceRepository;
}
@Override
public void handle(HttpServletRequest request, HttpServletResponse response, HandlerChain chain) throws Exception {
User user = getUser(request);
Authorizations authorizations = getAuthorizations(request, user);
String workspaceId = getActiveWorkspaceId(request);
Workspace workspace = workspaceRepository.findById(workspaceId, user);
final List<WorkspaceEntity> workspaceEntities = workspaceRepository.findEntities(workspace, user);
Iterable<String> vertexIds = getVisibleWorkspaceEntityIds(workspaceEntities);
Iterable<Vertex> graphVertices = graph.getVertices(vertexIds, authorizations);
ClientApiWorkspaceVertices results = new ClientApiWorkspaceVertices();
results.getVertices().addAll(ClientApiConverter.toClientApiVertices(graphVertices, workspaceId, authorizations));
respondWithClientApiObject(response, results);
}
private LookAheadIterable<WorkspaceEntity, String> getVisibleWorkspaceEntityIds(final List<WorkspaceEntity> workspaceEntities) {
return new LookAheadIterable<WorkspaceEntity, String>() {
@Override
protected boolean isIncluded(WorkspaceEntity workspaceEntity, String entityVertexId) {
return workspaceEntity.isVisible();
}
@Override
protected String convert(WorkspaceEntity workspaceEntity) {
return workspaceEntity.getEntityVertexId();
}
@Override
protected Iterator<WorkspaceEntity> createIterator() {
return workspaceEntities.iterator();
}
};
}
}