Line data    Source code

       1             : // Copyright (C) 2015 The Android Open Source Project
       2             : //
       3             : // Licensed under the Apache License, Version 2.0 (the "License");
       4             : // you may not use this file except in compliance with the License.
       5             : // You may obtain a copy of the License at
       6             : //
       7             : // http://www.apache.org/licenses/LICENSE-2.0
       8             : //
       9             : // Unless required by applicable law or agreed to in writing, software
      10             : // distributed under the License is distributed on an "AS IS" BASIS,
      11             : // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
      12             : // See the License for the specific language governing permissions and
      13             : // limitations under the License.
      14             : 
      15             : package com.google.gerrit.httpd.raw;
      16             : 
      17             : import com.google.common.cache.Cache;
      18             : import com.google.gerrit.server.util.time.TimeUtil;
      19             : import java.io.IOException;
      20             : import java.nio.file.FileSystems;
      21             : import java.nio.file.Path;
      22             : import java.nio.file.attribute.FileTime;
      23             : 
      24             : class PolyGerritUiServlet extends ResourceServlet {
      25             :   private static final long serialVersionUID = 1L;
      26             : 
      27           0 :   private static final FileTime NOW = FileTime.fromMillis(TimeUtil.nowMs());
      28             : 
      29             :   private final Path ui;
      30             : 
      31             :   PolyGerritUiServlet(Cache<Path, Resource> cache, Path ui) {
      32           0 :     super(cache, true);
      33           0 :     this.ui = ui;
      34           0 :   }
      35             : 
      36             :   @Override
      37             :   protected Path getResourcePath(String pathInfo) {
      38           0 :     return ui.resolve(pathInfo);
      39             :   }
      40             : 
      41             :   @Override
      42             :   protected FileTime getLastModifiedTime(Path p) throws IOException {
      43           0 :     if (ui.getFileSystem().equals(FileSystems.getDefault())) {
      44             :       // Assets are being served from disk, so we can trust the mtime.
      45           0 :       return super.getLastModifiedTime(p);
      46             :     }
      47             :     // Assume this FileSystem is serving from a WAR. All WAR outputs from the build process have
      48             :     // mtimes of 1980/1/1, so we can't trust it, and return the initialization time of this class
      49             :     // instead.
      50           0 :     return NOW;
      51             :   }
      52             : }