3 files changed, 245 insertions, 0 deletions
diff --git a/src/plugins/certmanager/src/com/motorolamobility/studio/android/certmanager/event/IKeyStoreModelListener.java b/src/plugins/certmanager/src/com/motorolamobility/studio/android/certmanager/event/IKeyStoreModelListener.java
new file mode 100644
index 0000000..19e24a4
--- /dev/null
+++ b/src/plugins/certmanager/src/com/motorolamobility/studio/android/certmanager/event/IKeyStoreModelListener.java
@@ -0,0 +1,62 @@
+/*
+ * Copyright (C) 2012 The Android Open Source Project
+ *
+ * Licensed 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 com.motorolamobility.studio.android.certmanager.event;
+
+import com.motorolamobility.studio.android.certmanager.ui.model.ITreeNode;
+
+/**
+ * This interface must be implemented by listeners to events occurred on the {@link ITreeNode}. 
+ */
+public interface IKeyStoreModelListener
+{
+    /**
+     * Handles the event {@link KeyStoreModelEvent#EventType} to add a node. 
+     * @param keyStoreModelEvent {@link KeyStoreModelEvent#getTreeNodeItem()} contains the node to be added.
+     */
+    public void handleNodeAdditionEvent(KeyStoreModelEvent keyStoreModeEvent);
+
+    /**
+     * Handles the event {@link KeyStoreModelEvent#EventType} to remove a node. 
+     * @param keyStoreModelEvent {@link KeyStoreModelEvent#getTreeNodeItem()} contains the node to be added.
+     */
+    public void handleNodeRemovalEvent(KeyStoreModelEvent keyStoreModeEvent);
+
+    /**
+     * Handles the event {@link KeyStoreModelEvent#EventType} to update a node. 
+     * @param keyStoreModelEvent {@link KeyStoreModelEvent#getTreeNodeItem()} contains the node to be added.
+     */
+    public void handleNodeUpdateEvent(KeyStoreModelEvent keyStoreModeEvent);
+
+    /**
+     * Handles the event {@link KeyStoreModelEvent#EventType} to collapse a node. 
+     * @param keyStoreModelEvent {@link KeyStoreModelEvent#getTreeNodeItem()} contains the node to be collapsed.
+     */
+    public void handleNodeCollapseEvent(KeyStoreModelEvent keyStoreModelEvent);
+
+    /**
+     * Handles the event {@link KeyStoreModelEvent#EventType} to refresh a node. 
+     * @param keyStoreModelEvent {@link KeyStoreModelEvent#getTreeNodeItem()} contains the node to be refreshed.
+     */
+    public void handleNodeRefreshEvent(KeyStoreModelEvent keyStoreModelEvent);
+
+    /**
+     * Handles the event {@link KeyStoreModelEvent#EventType} to clear a node. 
+     * @param keyStoreModelEvent {@link KeyStoreModelEvent#getTreeNodeItem()} contains the node to be cleared.
+     */
+    public void handleNodeClearEvent(KeyStoreModelEvent keyStoreModelEvent);
+
+}
diff --git a/src/plugins/certmanager/src/com/motorolamobility/studio/android/certmanager/event/KeyStoreModelEvent.java b/src/plugins/certmanager/src/com/motorolamobility/studio/android/certmanager/event/KeyStoreModelEvent.java
new file mode 100644
index 0000000..9ff4dd0
--- /dev/null
+++ b/src/plugins/certmanager/src/com/motorolamobility/studio/android/certmanager/event/KeyStoreModelEvent.java
@@ -0,0 +1,67 @@
+/*
+ * Copyright (C) 2012 The Android Open Source Project
+ *
+ * Licensed 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 com.motorolamobility.studio.android.certmanager.event;
+
+import com.motorolamobility.studio.android.certmanager.ui.model.ITreeNode;
+
+/**
+ * This class represents an event occurred on the {@link ITreeNode}.
+ */
+public class KeyStoreModelEvent
+{
+    private final EventType eventType;
+
+    private final ITreeNode treeNodeItem;
+
+    /** 
+     * Represents the change in the model. The {@link KeyStoreModelEvent#treeNodeItem} in each event may vary as specified below:
+     * <ul>
+     * <li>{@link EVENT_TYPE#ADD}  it is the item that needs to be added</li> 
+     * <li>{@link EVENT_TYPE#REMOVE}  it is the item that needs to be deleted</li>
+     * <li>{@link EVENT_TYPE#UPDATE}  it is the item that needs to be updated</li>
+     * </ul>
+     */
+    public enum EventType
+    {
+        ADD, REMOVE, UPDATE, COLLAPSE, REFRESH, CLEAR
+    }
+
+    /**
+     * Returns the event type.
+     * */
+    public EventType getEventType()
+    {
+        return eventType;
+    }
+
+    /**
+     * Returns the tree node item related to the event.
+     * */
+    public ITreeNode getTreeNodeItem()
+    {
+        return treeNodeItem;
+    }
+
+    /**
+     * Constructs a new event given an {@link ITreeNode} and a {@link KeyStoreModelEvent#EventType}.
+     * */
+    public KeyStoreModelEvent(ITreeNode treeNodeItem, EventType eventType)
+    {
+        this.eventType = eventType;
+        this.treeNodeItem = treeNodeItem;
+    }
+}
diff --git a/src/plugins/certmanager/src/com/motorolamobility/studio/android/certmanager/event/KeyStoreModelEventManager.java b/src/plugins/certmanager/src/com/motorolamobility/studio/android/certmanager/event/KeyStoreModelEventManager.java
new file mode 100644
index 0000000..5e2b49b
--- /dev/null
+++ b/src/plugins/certmanager/src/com/motorolamobility/studio/android/certmanager/event/KeyStoreModelEventManager.java
@@ -0,0 +1,116 @@
+/*
+ * Copyright (C) 2012 The Android Open Source Project
+ *
+ * Licensed 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 com.motorolamobility.studio.android.certmanager.event;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import com.motorolamobility.studio.android.certmanager.ui.model.ITreeNode;
+
+/**
+ * Manager which notifies {@link IKeyStoreModelListener} registered that a {@link KeyStoreModelEvent} occurred. 
+ * It is a singleton that needs to be called by the hierarchy of {@link ITreeNode} items when they modify the {@link ITreeNode}.
+ */
+public class KeyStoreModelEventManager
+{
+    private static KeyStoreModelEventManager _instance;
+
+    private final List<IKeyStoreModelListener> listeners = new ArrayList<IKeyStoreModelListener>();
+
+    private KeyStoreModelEventManager()
+    {
+        // Singleton - private default constructor prevents instantiations by other classes.  
+    }
+
+    /**
+     * Return the singleton instance of KeyStoreModelEventManager.
+     * */
+    public synchronized static KeyStoreModelEventManager getInstance()
+    {
+        if (_instance == null)
+        {
+            _instance = new KeyStoreModelEventManager();
+        }
+        return _instance;
+    }
+
+    /**
+     * Add the parameter {@code listener} to the list of KeyStore event listeners.
+     * @param listener The listener to be added.
+     * */
+    public void addListener(IKeyStoreModelListener listener)
+    {
+        synchronized (listener)
+        {
+            listeners.add(listener);
+        }
+    }
+
+    /**
+     * Remove the parameter {@code listener} to the list of KeyStore event listeners.
+     * @param listener The listener to be removed.
+     * */
+    public void removeListener(IKeyStoreModelListener listener)
+    {
+        synchronized (listener)
+        {
+            listeners.remove(listener);
+        }
+    }
+
+    /**
+     * Fire/notify/deliver the event to registered listeners.  
+     * @param node {@link ITreeNode} that needs to refresh the view based on the model
+     * @param eventType Event that occurred. 
+     */
+    public void fireEvent(ITreeNode treeNodeItem, KeyStoreModelEvent.EventType eventType)
+    {
+        KeyStoreModelEvent keyStoreModelEvent = new KeyStoreModelEvent(treeNodeItem, eventType);
+        synchronized (listeners)
+        {
+            if (listeners != null)
+            {
+                for (IKeyStoreModelListener listener : listeners)
+                {
+                    switch (eventType)
+                    {
+                        case ADD:
+                            listener.handleNodeAdditionEvent(keyStoreModelEvent);
+                            break;
+                        case REMOVE:
+                            listener.handleNodeRemovalEvent(keyStoreModelEvent);
+                            break;
+                        case UPDATE:
+                            listener.handleNodeUpdateEvent(keyStoreModelEvent);
+                            break;
+                        case COLLAPSE:
+                            listener.handleNodeCollapseEvent(keyStoreModelEvent);
+                            break;
+                        case REFRESH:
+                            listener.handleNodeRefreshEvent(keyStoreModelEvent);
+                            break;
+                        case CLEAR:
+                            listener.handleNodeClearEvent(keyStoreModelEvent);
+                            break;
+                        default:
+                            break;
+                    }
+                }
+            }
+        }
+    }
+}