81 lines
2.4 KiB
Java
81 lines
2.4 KiB
Java
/*-
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* ~~~~~~licensing~~~~~~
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* profile-management
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* ==========
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* Copyright (C) 2020 - 2021 EmDev LLC
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* ==========
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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* ~~~~~~/licensing~~~~~~
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*/
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package ru.entaxy.platform.base.support.osgi.tracker;
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import java.util.LinkedList;
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import java.util.List;
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import org.osgi.framework.Bundle;
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import org.osgi.framework.BundleContext;
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import org.osgi.framework.FrameworkUtil;
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import org.osgi.util.tracker.BundleTracker;
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public class BundleTrackerUtils {
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public static class BundleTrackerBuilder<T> {
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protected UniformBundleTrackerCustomizer<T> customizer;
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protected List<BundleFilter<?>> filters = new LinkedList<>();
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protected BundleContext bundleContext = FrameworkUtil.getBundle(BundleTrackerUtils.class).getBundleContext();
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protected int bundleState = Bundle.ACTIVE;
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public BundleTrackerBuilder<T> customizer(UniformBundleTrackerCustomizer<T> customizer){
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this.customizer = customizer;
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return this;
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}
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public BundleTrackerBuilder<T> bundleContext(BundleContext bundleContext){
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this.bundleContext = bundleContext;
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return this;
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}
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public BundleTrackerBuilder<T> addFilter(BundleFilter<?> bundleFilter){
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this.filters.add(bundleFilter);
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return this;
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}
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public BundleTrackerBuilder<T> bundleState(int state){
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this.bundleState = state;
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return this;
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}
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public BundleTracker<T> get(){
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if (customizer == null)
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return null;
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if (customizer instanceof BundleContextAware)
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((BundleContextAware)customizer).setBundleContext(bundleContext);
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for (BundleFilter<?> filter: this.filters) {
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if (filter instanceof BundleContextAware)
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((BundleContextAware)filter).setBundleContext(bundleContext);
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customizer.addFilter(filter);
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}
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return new BundleTracker<T>(bundleContext, bundleState, customizer);
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}
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}
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public static <T> BundleTrackerBuilder<T> createBuilder(){
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return new BundleTrackerBuilder<T>();
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}
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}
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