Add pool manager.

org.jdrupes.vmoperator.manager.events/src/org/jdrupes/vmoperator/manager/events/VmPoolChanged.java

@@ -0,0 +1,88 @@
+/*
+ * VM-Operator
+ * Copyright (C) 2023 Michael N. Lipp
+ * 
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package org.jdrupes.vmoperator.manager.events;
+
+import org.jdrupes.vmoperator.common.VmPool;
+import org.jgrapes.core.Channel;
+import org.jgrapes.core.Components;
+import org.jgrapes.core.Event;
+
+/**
+ * Indicates a change in a pool configuration. 
+ */
+@SuppressWarnings("PMD.DataClass")
+public class VmPoolChanged extends Event<Void> {
+
+    private final VmPool vmPool;
+    private final boolean deleted;
+
+    /**
+     * Instantiates a new VM changed event.
+     *
+     * @param pool the pool
+     * @param deleted true, if the pool was deleted
+     */
+    public VmPoolChanged(VmPool pool, boolean deleted) {
+        vmPool = pool;
+        this.deleted = deleted;
+    }
+
+    /**
+     * Instantiates a new VM changed event for an existing pool.
+     *
+     * @param pool the pool
+     */
+    public VmPoolChanged(VmPool pool) {
+        this(pool, false);
+    }
+
+    /**
+     * Returns the VM pool.
+     *
+     * @return the vm pool
+     */
+    public VmPool vmPool() {
+        return vmPool;
+    }
+
+    /**
+     * Pool has been deleted.
+     *
+     * @return true, if successful
+     */
+    public boolean deleted() {
+        return deleted;
+    }
+
+    @Override
+    public String toString() {
+        StringBuilder builder = new StringBuilder(30);
+        builder.append(Components.objectName(this))
+            .append(" [");
+        if (deleted) {
+            builder.append("Deleted: ");
+        }
+        builder.append(vmPool);
+        if (channels() != null) {
+            builder.append(", channels=").append(Channel.toString(channels()));
+        }
+        builder.append(']');
+        return builder.toString();
+    }
+}