| /* |
| * Copyright 2015 gitblit.com. |
| * |
| * 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.gitblit.guice; |
| |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| import com.gitblit.AvatarGenerator; |
| import com.gitblit.GravatarGenerator; |
| import com.gitblit.IStoredSettings; |
| import com.gitblit.Keys; |
| import com.gitblit.manager.IRuntimeManager; |
| import com.gitblit.utils.StringUtils; |
| import com.google.inject.Inject; |
| import com.google.inject.Provider; |
| import com.google.inject.Singleton; |
| |
| /** |
| * Provides a lazily-instantiated AvatarGenerator configured from IStoredSettings. |
| * |
| * @author James Moger |
| * |
| */ |
| @Singleton |
| public class AvatarGeneratorProvider implements Provider<AvatarGenerator> { |
| |
| private final Logger logger = LoggerFactory.getLogger(getClass()); |
| |
| private final IRuntimeManager runtimeManager; |
| |
| private volatile AvatarGenerator avatarGenerator; |
| |
| @Inject |
| public AvatarGeneratorProvider(IRuntimeManager runtimeManager) { |
| this.runtimeManager = runtimeManager; |
| } |
| |
| @Override |
| public synchronized AvatarGenerator get() { |
| if (avatarGenerator != null) { |
| return avatarGenerator; |
| } |
| |
| IStoredSettings settings = runtimeManager.getSettings(); |
| String clazz = settings.getString(Keys.web.avatarClass, GravatarGenerator.class.getName()); |
| if (StringUtils.isEmpty(clazz)) { |
| clazz = GravatarGenerator.class.getName(); |
| } |
| try { |
| Class<? extends AvatarGenerator> generatorClass = (Class<? extends AvatarGenerator>) Class.forName(clazz); |
| avatarGenerator = runtimeManager.getInjector().getInstance(generatorClass); |
| } catch (Exception e) { |
| logger.error("failed to create avatar generator", e); |
| avatarGenerator = new GravatarGenerator(); |
| } |
| return avatarGenerator; |
| } |
| } |