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.server.plugins;
      16             : 
      17             : import com.google.common.base.MoreObjects;
      18             : import com.google.gerrit.extensions.annotations.PluginCanonicalWebUrl;
      19             : import com.google.gerrit.extensions.annotations.PluginData;
      20             : import com.google.gerrit.extensions.annotations.PluginName;
      21             : import com.google.gerrit.lifecycle.LifecycleModule;
      22             : import com.google.gerrit.metrics.MetricMaker;
      23             : import com.google.gerrit.server.PluginUser;
      24             : import com.google.inject.AbstractModule;
      25             : import com.google.inject.Provides;
      26             : import com.google.inject.ProvisionException;
      27             : import java.io.File;
      28             : import java.io.IOException;
      29             : import java.nio.file.Files;
      30             : import java.nio.file.Path;
      31             : 
      32             : class ServerPluginInfoModule extends AbstractModule {
      33             :   private final ServerPlugin plugin;
      34             :   private final Path dataDir;
      35             : 
      36             :   private volatile boolean ready;
      37             :   private final MetricMaker serverMetrics;
      38             : 
      39          13 :   ServerPluginInfoModule(ServerPlugin plugin, MetricMaker serverMetrics) {
      40          13 :     this.plugin = plugin;
      41          13 :     this.dataDir = plugin.getDataDir();
      42          13 :     this.serverMetrics = serverMetrics;
      43          13 :   }
      44             : 
      45             :   @Override
      46             :   protected void configure() {
      47          13 :     bind(PluginUser.class).toInstance(plugin.getPluginUser());
      48          13 :     bind(String.class).annotatedWith(PluginName.class).toInstance(plugin.getName());
      49          13 :     bind(String.class)
      50          13 :         .annotatedWith(PluginCanonicalWebUrl.class)
      51          13 :         .toInstance(plugin.getPluginCanonicalWebUrl());
      52          13 :     bind(Plugin.class).toInstance(plugin);
      53             : 
      54          13 :     install(
      55          13 :         new LifecycleModule() {
      56             :           @Override
      57             :           public void configure() {
      58          13 :             PluginMetricMaker metrics =
      59             :                 new PluginMetricMaker(
      60             :                     serverMetrics,
      61          13 :                     MoreObjects.firstNonNull(
      62          13 :                         plugin.getMetricsPrefix(), String.format("plugins/%s/", plugin.getName())));
      63          13 :             bind(MetricMaker.class).toInstance(metrics);
      64          13 :             listener().toInstance(metrics);
      65          13 :           }
      66             :         });
      67          13 :   }
      68             : 
      69             :   @Provides
      70             :   @PluginData
      71             :   Path getPluginData() {
      72           0 :     if (!ready) {
      73           0 :       synchronized (dataDir) {
      74           0 :         if (!ready) {
      75             :           try {
      76           0 :             Files.createDirectories(dataDir);
      77           0 :           } catch (IOException e) {
      78           0 :             throw new ProvisionException(
      79           0 :                 String.format(
      80           0 :                     "Cannot create %s for plugin %s", dataDir.toAbsolutePath(), plugin.getName()),
      81             :                 e);
      82           0 :           }
      83           0 :           ready = true;
      84             :         }
      85           0 :       }
      86             :     }
      87           0 :     return dataDir;
      88             :   }
      89             : 
      90             :   @Provides
      91             :   @PluginData
      92             :   File getPluginDataAsFile(@PluginData Path pluginData) {
      93           0 :     return pluginData.toFile();
      94             :   }
      95             : }