diff --git a/core/src/main/java/org/jclouds/logging/LoggingModules.java b/core/src/main/java/org/jclouds/logging/LoggingModules.java new file mode 100644 index 0000000000..04aedf6200 --- /dev/null +++ b/core/src/main/java/org/jclouds/logging/LoggingModules.java @@ -0,0 +1,67 @@ +/** + * Licensed to jclouds, Inc. (jclouds) under one or more + * contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. jclouds licenses this file + * to you 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 org.jclouds.logging; + +import static com.google.common.collect.Iterables.find; + +import java.util.NoSuchElementException; +import java.util.ServiceLoader; + +import org.jclouds.logging.config.LoggingModule; +import org.jclouds.logging.jdk.config.JDKLoggingModule; + +import com.google.common.base.Predicates; + +/** + * The LoggingModules class provides static methods for accessing + * loggingModules. + * + * @author Adrian Cole + */ +public class LoggingModules { + + /** + * Returns the {@link LoggingModule}s located on the classpath via + * {@link java.util.ServiceLoader}. + * + */ + private static Iterable fromServiceLoader() { + return ServiceLoader.load(LoggingModule.class); + } + + /** + * all available {@link LoggingModule}s + */ + public static Iterable all() { + return fromServiceLoader(); + } + + /** + * the first available {@link LoggingModule}s from + * {@link java.util.ServiceLoader} or {@link JDKLoggingModule} + */ + public static LoggingModule firstOrJDKLoggingModule() { + try { + return find(ServiceLoader.load(LoggingModule.class), + Predicates.not(Predicates.instanceOf(JDKLoggingModule.class))); + } catch (NoSuchElementException e) { + return new JDKLoggingModule(); + } + } +} diff --git a/core/src/main/resources/META-INF/services/org.jclouds.logging.config.LoggingModule b/core/src/main/resources/META-INF/services/org.jclouds.logging.config.LoggingModule new file mode 100644 index 0000000000..1bf9839d4c --- /dev/null +++ b/core/src/main/resources/META-INF/services/org.jclouds.logging.config.LoggingModule @@ -0,0 +1 @@ +org.jclouds.logging.jdk.config.JDKLoggingModule diff --git a/drivers/log4j/src/main/resources/META-INF/services/org.jclouds.logging.config.LoggingModule b/drivers/log4j/src/main/resources/META-INF/services/org.jclouds.logging.config.LoggingModule new file mode 100644 index 0000000000..e6d96efb4c --- /dev/null +++ b/drivers/log4j/src/main/resources/META-INF/services/org.jclouds.logging.config.LoggingModule @@ -0,0 +1 @@ +org.jclouds.logging.log4j.config.Log4JLoggingModule diff --git a/drivers/slf4j/src/main/resources/META-INF/services/org.jclouds.logging.config.LoggingModule b/drivers/slf4j/src/main/resources/META-INF/services/org.jclouds.logging.config.LoggingModule new file mode 100644 index 0000000000..1cbe65edc8 --- /dev/null +++ b/drivers/slf4j/src/main/resources/META-INF/services/org.jclouds.logging.config.LoggingModule @@ -0,0 +1 @@ +org.jclouds.logging.slf4j.config.SLF4JLoggingModule