src/main/java/com/googlesource/gerrit/plugins/websession/broker/Module.java

// Copyright (C) 2019 The Android Open Source Project
//
// Licensed 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 com.googlesource.gerrit.plugins.websession.broker;

import com.gerritforge.gerrit.eventbroker.BrokerApi;
import com.google.gerrit.extensions.annotations.PluginName;
import com.google.gerrit.extensions.registration.DynamicItem;
import com.google.gerrit.lifecycle.LifecycleModule;
import com.google.gerrit.server.config.PluginConfigFactory;
import com.google.inject.Inject;
import com.google.inject.Provides;
import com.google.inject.Singleton;

public class Module extends LifecycleModule {
  private static String DEFAULT_WEB_SESSION_TOPIC = "gerrit_web_session";

  DynamicItem<BrokerApi> brokerApi;

  @Override
  protected void configure() {
    if (brokerApi == null) {
      DynamicItem.itemOf(binder(), BrokerApi.class);
    }
  }

  @Inject(optional = true)
  public void setBrokerApi(DynamicItem<BrokerApi> brokerApi) {
    this.brokerApi = brokerApi;
  }

  @Provides
  @Singleton
  @WebSessionTopicName
  public String getWebSessionTopicName(PluginConfigFactory cfg, @PluginName String pluginName) {
    return cfg.getFromGerritConfig(pluginName)
        .getString("webSessionTopic", DEFAULT_WEB_SESSION_TOPIC);
  }
}