/*
* 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.felix.scr.Component;
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;
public class JmxComponent {
/**
* The CompositeType which represents a single component
*/
public final static CompositeType COMPONENT = createComponenetType();
/**
* The TabularType which represents a list of components
*/
public final static TabularType COMPONENT_TABLE = createComponentTableType();
private final CompositeData data;
public JmxComponent(Component component) {
try {
String[] itemNames = ScrServiceMBean.COMPONENT;
Object[] itemValues = new Object[itemNames.length];
itemValues[0] = component.getId();
itemValues[1] = component.getName();
itemValues[2] = getState(component);
itemValues[3] = JmxProperty.tableFrom(component.getProperties());
itemValues[4] = JmxReference.tableFrom(component.getReferences());
data = new CompositeDataSupport(COMPONENT, itemNames, itemValues);
} catch (OpenDataException e) {
throw new IllegalStateException("Cannot form feature open data", e);
}
}
public CompositeData asCompositeData() {
return data;
}
public static TabularData tableFrom(Component... components) {
TabularDataSupport table = new TabularDataSupport(COMPONENT_TABLE);
for (Component component : components) {
table.put(new JmxComponent(component).asCompositeData());
}
return table;
}
private static CompositeType createComponenetType() {
try {
String description = "This type encapsulates Scr references";
String[] itemNames = ScrServiceMBean.COMPONENT;
OpenType[] itemTypes = new OpenType[itemNames.length];
String[] itemDescriptions = new String[itemNames.length];
itemTypes[0] = SimpleType.LONG;
itemTypes[1] = SimpleType.STRING;
itemTypes[2] = SimpleType.STRING;
itemTypes[3] = JmxProperty.PROPERTY_TABLE;
itemTypes[4] = JmxReference.REFERENCE_TABLE;
itemDescriptions[0] = "The id of the component";
itemDescriptions[1] = "The name of the component";
itemDescriptions[2] = "The state of the component";
itemDescriptions[3] = "The properties of the component";
itemDescriptions[4] = "The references of the component";
return new CompositeType("Component", description, itemNames,
itemDescriptions, itemTypes);
} catch (OpenDataException e) {
throw new IllegalStateException("Unable to build component type", e);
}
}
private static TabularType createComponentTableType() {
try {
return new TabularType("Component", "The table of all components",
COMPONENT, ScrServiceMBean.COMPONENT);
} catch (OpenDataException e) {
throw new IllegalStateException("Unable to build components table type", e);
}
}
/**
* Returns a literal for the {@link Component} state.
* @param component The target {@link Component}.
* @return
*/
private static String getState(Component component) {
switch (component.getState()) {
case Component.STATE_ACTIVE:
return "Active";
case Component.STATE_ACTIVATING:
return "Activating";
case Component.STATE_DEACTIVATING:
return "Deactivating";
case Component.STATE_DISABLED:
return "Disabled";
case Component.STATE_DISABLING:
return "Disabling";
case Component.STATE_DISPOSED:
return "Disposed";
case Component.STATE_DISPOSING:
return "Disposing";
case Component.STATE_ENABLING:
return "Enabling";
case Component.STATE_FACTORY:
return "Factory";
case Component.STATE_REGISTERED:
return "Registered";
case Component.STATE_UNSATISFIED:
return "Unsatisfied";
}
return "Unknown";
}
}