Add viewer conlet (#25)

org.jdrupes.vmoperator.manager.events/build.gradle

@@ -11,4 +11,5 @@ plugins {
 dependencies {
     api 'org.jgrapes:org.jgrapes.core:[1.19.0,2)'
     api project(':org.jdrupes.vmoperator.common')
+    api 'com.fasterxml.jackson.datatype:jackson-datatype-jsr310:[2.16.1,3]'
 }

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

@@ -44,7 +44,7 @@ public class ChannelCache<K, C extends Channel, A> {
      */
     @SuppressWarnings("PMD.ShortClassName")
     private static class Data<C extends Channel, A> {
-        public WeakReference<C> channel;
+        public final WeakReference<C> channel;
         public A associated;
 
         /**

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

@@ -28,7 +28,7 @@ import org.jgrapes.core.Event;
  * Indicates that a display secret has changed. 
  */
 @SuppressWarnings("PMD.DataClass")
-public class DisplaySecretChanged extends Event<Void> {
+public class DisplayPasswordChanged extends Event<Void> {
 
     private final ResponseType type;
     private final V1Secret secret;
@@ -39,7 +39,7 @@ public class DisplaySecretChanged extends Event<Void> {
      * @param type the type
      * @param secret the secret
      */
-    public DisplaySecretChanged(ResponseType type, V1Secret secret) {
+    public DisplayPasswordChanged(ResponseType type, V1Secret secret) {
         this.type = type;
         this.secret = secret;
     }
@@ -68,8 +68,7 @@ public class DisplaySecretChanged extends Event<Void> {
         builder.append(Components.objectName(this)).append(" [")
             .append(secret.getMetadata().getName()).append(' ').append(type);
         if (channels() != null) {
-            builder.append(", channels=");
-            builder.append(Channel.toString(channels()));
+            builder.append(", channels=").append(Channel.toString(channels()));
         }
         builder.append(']');
         return builder.toString();

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

@@ -0,0 +1,58 @@
+/*
+ * VM-Operator
+ * Copyright (C) 2024 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 java.util.Optional;
+import org.jgrapes.core.Event;
+
+/**
+ * Gets the current display secret. 
+ */
+@SuppressWarnings("PMD.DataClass")
+public class GetDisplayPassword extends Event<String> {
+
+    private final String vmName;
+
+    /**
+     * Instantiates a new returns the display secret.
+     *
+     * @param vmName the vm name
+     */
+    public GetDisplayPassword(String vmName) {
+        this.vmName = vmName;
+    }
+
+    /**
+     * Gets the vm name.
+     *
+     * @return the vm name
+     */
+    public String vmName() {
+        return vmName;
+    }
+
+    /**
+     * Return the password. Should only be called when the event is completed.
+     *
+     * @return the optional
+     */
+    public Optional<String> password() {
+        return currentResults().stream().findFirst();
+    }
+}

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

@@ -0,0 +1,76 @@
+/*
+ * VM-Operator
+ * Copyright (C) 2024 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 io.kubernetes.client.openapi.models.V1Service;
+import org.jdrupes.vmoperator.common.K8sObserver.ResponseType;
+import org.jgrapes.core.Channel;
+import org.jgrapes.core.Components;
+import org.jgrapes.core.Event;
+
+/**
+ * Indicates that a service has changed. 
+ */
+@SuppressWarnings("PMD.DataClass")
+public class ServiceChanged extends Event<Void> {
+
+    private final ResponseType type;
+    private final V1Service service;
+
+    /**
+     * Initializes a new service changed event.
+     *
+     * @param type the type
+     * @param service the service
+     */
+    public ServiceChanged(ResponseType type, V1Service service) {
+        this.type = type;
+        this.service = service;
+    }
+
+    /**
+     * Returns the type.
+     *
+     * @return the type
+     */
+    public ResponseType type() {
+        return type;
+    }
+
+    /**
+     * Gets the service.
+     *
+     * @return the service
+     */
+    public V1Service service() {
+        return service;
+    }
+
+    @Override
+    public String toString() {
+        StringBuilder builder = new StringBuilder();
+        builder.append(Components.objectName(this)).append(" [")
+            .append(service.getMetadata().getName()).append(' ').append(type);
+        if (channels() != null) {
+            builder.append(", channels=").append(Channel.toString(channels()));
+        }
+        builder.append(']');
+        return builder.toString();
+    }
+}

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

@@ -83,8 +83,7 @@ public class VmDefChanged extends Event<Void> {
         builder.append(Components.objectName(this)).append(" [")
             .append(vmDef.getMetadata().getName()).append(' ').append(type);
         if (channels() != null) {
-            builder.append(", channels=");
-            builder.append(Channel.toString(channels()));
+            builder.append(", channels=").append(Channel.toString(channels()));
         }
         builder.append(']');
         return builder.toString();