| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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.apache.jena.fuseki.ctl; |
| |
| import org.apache.jena.fuseki.Fuseki; |
| import org.apache.jena.fuseki.server.DataAccessPoint; |
| import org.apache.jena.fuseki.servlets.ActionLifecycle; |
| import org.apache.jena.fuseki.servlets.HttpAction; |
| import org.apache.jena.fuseki.servlets.ServletProcessor; |
| import org.apache.jena.fuseki.system.ActionCategory; |
| import org.apache.jena.sparql.core.DatasetGraph; |
| |
| /** |
| * Base class for control actions. These are servlets and do not go through Fuseki |
| * dynamic dispatch. No statistics. |
| */ |
| public abstract class ActionCtl extends ServletProcessor implements ActionLifecycle { |
| protected ActionCtl() { |
| super(Fuseki.adminLog, ActionCategory.ADMIN); |
| } |
| |
| @Override |
| final public void process(HttpAction action) { |
| executeLifecycle(action); |
| } |
| |
| /** |
| * Simple execution lifecycle for a SPARQL Request. No statistics. |
| * |
| * @param action |
| */ |
| protected void executeLifecycle(HttpAction action) { |
| validate(action); |
| execute(action); |
| } |
| |
| /** Get the item name - the part after the URI for the servlet (which is the container). */ |
| public static String getItemName(HttpAction action) { |
| return action.request.getPathInfo(); |
| } |
| |
| /** |
| * Get the item name - the part after the URI for the servlet (which is |
| * the container) - treated as a dataset name. |
| */ |
| public static String getItemDatasetName(HttpAction action) { |
| String x = getItemName(action); |
| if ( x == null ) |
| return null; |
| while ( x.startsWith("//") ) |
| x = x.substring(1); |
| return DataAccessPoint.canonical(x); |
| } |
| |
| /** |
| * Get the DataAccessPoint corresponding to the item name, or null. |
| * @see #getItemDatasetName |
| */ |
| public static DataAccessPoint getItemDataAccessPoint(HttpAction action) { |
| String name = getItemDatasetName(action); |
| return getItemDataAccessPoint(action, name); |
| } |
| |
| /** |
| * Get the DatasetGraph corresponding to the item name, or null. |
| * @see #getItemDatasetName |
| */ |
| public static DatasetGraph getItemDataset(HttpAction action) { |
| DataAccessPoint dap = getItemDataAccessPoint(action); |
| if ( dap == null ) |
| return null; |
| return dap.getDataService().getDataset(); |
| } |
| |
| /** |
| * Get the DataAccessPoint corresponding to the item name, or null. |
| * @see #getItemDatasetName |
| */ |
| public static DataAccessPoint getItemDataAccessPoint(HttpAction action, String name) { |
| return action.getDataAccessPointRegistry().get(name); |
| } |
| } |