| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF 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.apache.ignite.osgi; |
| |
| import java.util.Map; |
| import java.util.concurrent.ConcurrentHashMap; |
| import java.util.concurrent.ConcurrentMap; |
| import org.apache.ignite.Ignite; |
| import org.osgi.framework.Bundle; |
| import org.osgi.framework.FrameworkUtil; |
| |
| /** |
| * Helper class for OSGi. |
| */ |
| public class IgniteOsgiUtils { |
| /** Whether we are running in an OSGi container. */ |
| private static boolean osgi = FrameworkUtil.getBundle(IgniteOsgiUtils.class) != null; |
| |
| /** Maps Ignite instances to the ClassLoaders of the bundles they were started from. */ |
| private static final ConcurrentMap<Ignite, ClassLoader> CLASSLOADERS = new ConcurrentHashMap<>(); |
| |
| /** |
| * Private constructor. |
| */ |
| private IgniteOsgiUtils() { } |
| |
| /** |
| * Returns whether we are running in an OSGi environment. |
| * |
| * @return {@code true/false}. |
| */ |
| public static boolean isOsgi() { |
| return osgi; |
| } |
| |
| /** |
| * Returns a {@link Map} of {@link Ignite} instances and the classloaders of the {@link Bundle}s they were |
| * started from. |
| * |
| * @return The {@link Map}. |
| */ |
| protected static Map<Ignite, ClassLoader> classloaders() { |
| return CLASSLOADERS; |
| } |
| |
| /** |
| * Returns the number of grids currently running in this OSGi container. |
| * |
| * @return The grid count. |
| */ |
| public static int gridCount() { |
| return CLASSLOADERS.size(); |
| } |
| } |