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

61 lines
1.8 KiB
Java

/*-
* ~~~~~~licensing~~~~~~
* profile-management
* ==========
* Copyright (C) 2020 - 2021 EmDev LLC
* ==========
* 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.
* ~~~~~~/licensing~~~~~~
*/
package ru.entaxy.platform.base.support.osgi.tracker.filter;
import java.util.List;
import org.osgi.framework.Bundle;
import org.osgi.framework.BundleEvent;
import org.osgi.framework.wiring.BundleCapability;
import org.osgi.framework.wiring.BundleRevision;
public class BundleCapabilityFilter extends AbstractBundleFilter<BundleCapability, BundleCapabilityFilter> {
public static final String DEFAULT_FILTER_ID = "bundle.capabilities";
protected String namespace;
@Override
protected String getDefaultFilterId() {
return DEFAULT_FILTER_ID;
}
@Override
public List<BundleCapability> checkBundle(Bundle bundle, BundleEvent event) {
BundleRevision revision = bundle.adapt(BundleRevision.class);
if (revision == null)
return null;
List<BundleCapability> capabilities = revision.getDeclaredCapabilities(namespace);
if ((capabilities==null) || (capabilities.size()==0))
return null;
return capabilities;
}
public void setNamespace(String namespace) {
this.namespace = namespace;
}
public BundleCapabilityFilter namespace(String namespace) {
setNamespace(namespace);
return this;
}
}