/*
* 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.scr.management.codec;
import org.apache.karaf.scr.management.ScrServiceMBean;
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 javax.management.openmbean.TabularData;
import javax.management.openmbean.TabularDataSupport;
import javax.management.openmbean.TabularType;
import java.util.Dictionary;
import java.util.Enumeration;
public class JmxProperty {
/**
* The CompositeType which represents a single property
*/
public final static CompositeType PROPERTY = createPropertyType();
/**
* The TabularType which represents a list of properties
*/
public final static TabularType PROPERTY_TABLE = createPropertyTableType();
private final CompositeData data;
public JmxProperty(String key, String value) {
try {
String[] itemNames = ScrServiceMBean.PROPERTY;
Object[] itemValues = new Object[itemNames.length];
itemValues[0] = key;
itemValues[1] = value;
data = new CompositeDataSupport(PROPERTY, itemNames, itemValues);
} catch (OpenDataException e) {
throw new IllegalStateException("Cannot form property open data", e);
}
}
public CompositeData asCompositeData() {
return data;
}
public static TabularData tableFrom(Dictionary properties) {
TabularDataSupport table = new TabularDataSupport(PROPERTY_TABLE);
Enumeration p = properties.keys();
while (p.hasMoreElements()) {
Object key = p.nextElement();
Object value = properties.get(key);
table.put(new JmxProperty(String.valueOf(key), String.valueOf(value)).asCompositeData());
}
return table;
}
private static CompositeType createPropertyType() {
try {
String description = "This type encapsulates Scr properties";
String[] itemNames = ScrServiceMBean.PROPERTY;
OpenType[] itemTypes = new OpenType[itemNames.length];
String[] itemDescriptions = new String[itemNames.length];
itemTypes[0] = SimpleType.STRING;
itemTypes[1] = SimpleType.STRING;
itemDescriptions[0] = "The property key";
itemDescriptions[1] = "The property value";
return new CompositeType("Property", description, itemNames,
itemDescriptions, itemTypes);
} catch (OpenDataException e) {
throw new IllegalStateException("Unable to build property type", e);
}
}
private static TabularType createPropertyTableType() {
try {
return new TabularType("References", "The table of all properties",
PROPERTY, new String[] {ScrServiceMBean.PROPERTY_KEY});
} catch (OpenDataException e) {
throw new IllegalStateException("Unable to build properties table type", e);
}
}
}