1 files changed, 71 insertions, 0 deletions
diff --git a/src/main/java/com/gitblit/guice/AvatarGeneratorProvider.java b/src/main/java/com/gitblit/guice/AvatarGeneratorProvider.java
new file mode 100644
index 00000000..a18e2996
--- /dev/null
+++ b/src/main/java/com/gitblit/guice/AvatarGeneratorProvider.java
@@ -0,0 +1,71 @@
+/*
+ * 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;
+	}
+}
+\ No newline at end of file