/*
* The MIT License
*
* Copyright (c) Red Hat, Inc.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
package jenkins.model;
import hudson.ExtensionList;
import hudson.ExtensionPoint;
import hudson.model.Node;
import javax.annotation.Nonnull;
import java.util.List;
import java.util.logging.Level;
import java.util.logging.Logger;
/**
* Listen to {@link Node} CRUD operations.
*
* @author ogondza.
* @since TODO
*/
public abstract class NodeListener implements ExtensionPoint {
private static final Logger LOGGER = Logger.getLogger(NodeListener.class.getName());
/**
* Node is being created.
*/
protected void onCreated(@Nonnull Node node) {}
/**
* Node is being updated.
*/
protected void onUpdated(@Nonnull Node oldOne, @Nonnull Node newOne) {}
/**
* Node is being deleted.
*/
protected void onDeleted(@Nonnull Node node) {}
/**
* Inform listeners that node is being created.
*
* @param node A node being created.
*/
public static void fireOnCreated(@Nonnull Node node) {
for (NodeListener nl: all()) {
try {
nl.onCreated(node);
} catch (Throwable ex) {
LOGGER.log(Level.WARNING, "Listener invocation failed", ex);
}
}
}
/**
* Inform listeners that node is being updated.
*
* @param oldOne Old configuration.
* @param newOne New Configuration.
*/
public static void fireOnUpdated(@Nonnull Node oldOne, @Nonnull Node newOne) {
for (NodeListener nl: all()) {
try {
nl.onUpdated(oldOne, newOne);
} catch (Throwable ex) {
LOGGER.log(Level.WARNING, "Listener invocation failed", ex);
}
}
}
/**
* Inform listeners that node is being removed.
*
* @param node A node being removed.
*/
public static void fireOnDeleted(@Nonnull Node node) {
for (NodeListener nl: all()) {
try {
nl.onDeleted(node);
} catch (Throwable ex) {
LOGGER.log(Level.WARNING, "Listener invocation failed", ex);
}
}
}
/**
* Get all {@link NodeListener}s registered in Jenkins.
*/
public static @Nonnull List<NodeListener> all() {
return ExtensionList.lookup(NodeListener.class);
}
}