Line data    Source code

       1             : // Copyright (C) 2013 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.server.securestore;
      16             : 
      17             : import com.google.common.base.Strings;
      18             : import com.google.gerrit.common.Nullable;
      19             : import com.google.gerrit.common.SiteLibraryLoaderUtil;
      20             : import com.google.gerrit.server.config.SitePaths;
      21             : import com.google.inject.Inject;
      22             : import com.google.inject.Injector;
      23             : import com.google.inject.Provider;
      24             : import com.google.inject.Singleton;
      25             : import java.nio.file.Path;
      26             : 
      27             : @Singleton
      28             : public class SecureStoreProvider implements Provider<SecureStore> {
      29             :   private final Path libdir;
      30             :   private final Injector injector;
      31             :   private final String className;
      32             : 
      33             :   @Inject
      34             :   protected SecureStoreProvider(
      35         138 :       Injector injector, SitePaths sitePaths, @Nullable @SecureStoreClassName String className) {
      36         138 :     this.injector = injector;
      37         138 :     this.libdir = sitePaths.lib_dir;
      38         138 :     this.className = className;
      39         138 :   }
      40             : 
      41             :   @Override
      42             :   public synchronized SecureStore get() {
      43         138 :     return injector.getInstance(getSecureStoreImpl());
      44             :   }
      45             : 
      46             :   @SuppressWarnings("unchecked")
      47             :   private Class<? extends SecureStore> getSecureStoreImpl() {
      48         138 :     if (Strings.isNullOrEmpty(className)) {
      49           0 :       return DefaultSecureStore.class;
      50             :     }
      51             : 
      52         138 :     SiteLibraryLoaderUtil.loadSiteLib(libdir);
      53             :     try {
      54         138 :       return (Class<? extends SecureStore>) Class.forName(className);
      55           0 :     } catch (ClassNotFoundException e) {
      56           0 :       throw new RuntimeException(String.format("Cannot load secure store class: %s", className), e);
      57             :     }
      58             :   }
      59             : }