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This bundle is the core implementation of the Karaf features support.
/*
* 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.karaf.features.management.codec;
import javax.management.openmbean.CompositeData;
import javax.management.openmbean.CompositeDataSupport;
import javax.management.openmbean.CompositeType;
import javax.management.openmbean.OpenDataException;
import javax.management.openmbean.OpenType;
import javax.management.openmbean.SimpleType;
import org.apache.karaf.features.FeatureEvent;
import org.apache.karaf.features.management.FeaturesServiceMBean;
public class JmxFeatureEvent {
public static final CompositeType FEATURE_EVENT;
private final CompositeData data;
public JmxFeatureEvent(FeatureEvent event) {
try {
String[] itemNames = FeaturesServiceMBean.FEATURE_EVENT;
Object[] itemValues = new Object[itemNames.length];
itemValues[0] = event.getFeature().getName();
itemValues[1] = event.getFeature().getVersion();
itemValues[2] = event.getRegion();
switch (event.getType()) {
case FeatureInstalled:
itemValues[2] = FeaturesServiceMBean.FEATURE_EVENT_EVENT_TYPE_INSTALLED;
break;
case FeatureUninstalled:
itemValues[2] = FeaturesServiceMBean.FEATURE_EVENT_EVENT_TYPE_UNINSTALLED;
break;
default:
throw new IllegalStateException("Unsupported event type: " + event.getType());
}
data = new CompositeDataSupport(FEATURE_EVENT, itemNames, itemValues);
} catch (OpenDataException e) {
throw new IllegalStateException("Cannot form feature event open data", e);
}
}
public CompositeData asCompositeData() {
return data;
}
static {
FEATURE_EVENT = createFeatureEventType();
}
private static CompositeType createFeatureEventType() {
try {
String description = "This type identify a Karaf feature event";
String[] itemNames = FeaturesServiceMBean.FEATURE_EVENT;
OpenType[] itemTypes = new OpenType[itemNames.length];
String[] itemDescriptions = new String[itemNames.length];
itemTypes[0] = SimpleType.STRING;
itemTypes[1] = SimpleType.STRING;
itemTypes[2] = SimpleType.STRING;
itemTypes[3] = SimpleType.STRING;
itemDescriptions[0] = "The id of the feature";
itemDescriptions[1] = "The version of the feature";
itemDescriptions[2] = "The type of the event";
itemDescriptions[3] = "The region of this feature";
return new CompositeType("FeatureEvent", description, itemNames,
itemDescriptions, itemTypes);
} catch (OpenDataException e) {
throw new IllegalStateException("Unable to build featureEvent type", e);
}
}
}