entaxy-public/platform/runtime/base/base-support/src/main/java/ru/entaxy/platform/base/support/osgi/tracker/BundleTrackerUtils.java

87 lines
3.0 KiB
Java

/*-
* ~~~~~~licensing~~~~~~
* profile-management
* ==========
* Copyright (C) 2020 - 2023 EmDev LLC
* ==========
* You may not use this file except in accordance with the License Terms of the Copyright
* Holder located at: https://entaxy.ru/eula . All copyrights, all intellectual property
* rights to the Software and any copies are the property of the Copyright Holder. Unless
* it is explicitly allowed the Copyright Holder, the User is prohibited from using the
* Software for commercial purposes to provide services to third parties.
*
* The Copyright Holder hereby declares that the Software is provided on an "AS IS".
* Under no circumstances does the Copyright Holder guarantee or promise that the
* Software provided by him will be suitable or not suitable for the specific purposes
* of the User, that the Software will meet all commercial and personal subjective
* expectations of the User, that the Software will work properly, without technical
* errors, quickly and uninterruptedly.
*
* Under no circumstances shall the Copyright Holder or its Affiliates is not liable
* to the User for any direct or indirect losses of the User, his expenses or actual
* damage, including, downtime; loss of bussines; lost profit; lost earnings; loss
* or damage to data, property, etc.
* ~~~~~~/licensing~~~~~~
*/
package ru.entaxy.platform.base.support.osgi.tracker;
import java.util.LinkedList;
import java.util.List;
import org.osgi.framework.Bundle;
import org.osgi.framework.BundleContext;
import org.osgi.framework.FrameworkUtil;
import org.osgi.util.tracker.BundleTracker;
public class BundleTrackerUtils {
public static class BundleTrackerBuilder<T> {
protected UniformBundleTrackerCustomizer<T> customizer;
protected List<BundleFilter<?>> filters = new LinkedList<>();
protected BundleContext bundleContext = FrameworkUtil.getBundle(BundleTrackerUtils.class).getBundleContext();
protected int bundleState = Bundle.ACTIVE;
public BundleTrackerBuilder<T> customizer(UniformBundleTrackerCustomizer<T> customizer){
this.customizer = customizer;
return this;
}
public BundleTrackerBuilder<T> bundleContext(BundleContext bundleContext){
this.bundleContext = bundleContext;
return this;
}
public BundleTrackerBuilder<T> addFilter(BundleFilter<?> bundleFilter){
this.filters.add(bundleFilter);
return this;
}
public BundleTrackerBuilder<T> bundleState(int state){
this.bundleState = state;
return this;
}
public BundleTracker<T> get(){
if (customizer == null)
return null;
if (customizer instanceof BundleContextAware)
((BundleContextAware)customizer).setBundleContext(bundleContext);
for (BundleFilter<?> filter: this.filters) {
if (filter instanceof BundleContextAware)
((BundleContextAware)filter).setBundleContext(bundleContext);
customizer.addFilter(filter);
}
return new BundleTracker<T>(bundleContext, bundleState, customizer);
}
}
public static <T> BundleTrackerBuilder<T> createBuilder(){
return new BundleTrackerBuilder<T>();
}
}