QPID-1947: Add combo to toolbar allowing selection of update interval for automated refresh

git-svn-id: https://svn.apache.org/repos/asf/qpid/trunk/qpid@793924 13f79535-47bb-0310-9956-ffa450edef68

1 files changed, 128 insertions, 0 deletions

diff --git a/java/management/eclipse-plugin/src/main/java/org/apache/qpid/management/ui/RefreshIntervalComboPanel.java b/java/management/eclipse-plugin/src/main/java/org/apache/qpid/management/ui/RefreshIntervalComboPanel.java
new file mode 100644
index 0000000000..cada746b29
--- /dev/null
+++ b/java/management/eclipse-plugin/src/main/java/org/apache/qpid/management/ui/RefreshIntervalComboPanel.java
@@ -0,0 +1,128 @@
+/*
+ *
+ * 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.qpid.management.ui;
+
+import org.apache.qpid.management.ui.jmx.MBeanUtility;
+import org.apache.qpid.management.ui.views.MBeanView;
+import org.apache.qpid.management.ui.views.NavigationView;
+import org.eclipse.swt.SWT;
+import org.eclipse.swt.events.ModifyEvent;
+import org.eclipse.swt.events.ModifyListener;
+import org.eclipse.swt.layout.GridData;
+import org.eclipse.swt.layout.GridLayout;
+import org.eclipse.swt.widgets.Combo;
+import org.eclipse.swt.widgets.Composite;
+import org.eclipse.swt.widgets.Control;
+import org.eclipse.swt.widgets.Display;
+import org.eclipse.swt.widgets.Label;
+import org.eclipse.ui.IWorkbenchWindow;
+import org.eclipse.ui.PlatformUI;
+import org.eclipse.ui.menus.WorkbenchWindowControlContribution;
+
+public class RefreshIntervalComboPanel extends WorkbenchWindowControlContribution
+{
+    private Display _display = null;
+    private RefreshTask _refreshTask = null;
+    
+    private static int DEFAULT_INDEX = 2; //15seconds
+    private static final int[] INTERVALS = new int[]{5,10,15,30,60,120,300,600};
+
+    public RefreshIntervalComboPanel()
+    {
+        super();
+    }
+    
+    public RefreshIntervalComboPanel(String id)
+    {
+        super(id);
+    }
+
+    @Override
+    public Control createControl(Composite parent)
+    {
+        _display = parent.getDisplay();
+        
+        Composite holder = new Composite(parent,SWT.NONE);
+        holder.setLayout(new GridLayout(2,false));
+        holder.setLayoutData(new GridData(SWT.LEFT,SWT.TOP,false,false));
+        
+        Label refreshLabel = new Label(holder,SWT.NONE);
+        refreshLabel.setLayoutData(new GridData(SWT.LEFT,SWT.TOP,false,true));
+        refreshLabel.setText("Refresh Interval: ");
+        
+        final Combo combo = new Combo(holder, SWT.NONE | SWT.DROP_DOWN | SWT.READ_ONLY);
+        combo.setLayoutData(new GridData(SWT.LEFT,SWT.TOP,false,false));
+        for(int i=0; i< INTERVALS.length ; i++)
+        {
+            combo.add(String.valueOf(INTERVALS[i]) + " seconds");
+        }
+        combo.select(DEFAULT_INDEX);
+        
+        _refreshTask = new RefreshTask(INTERVALS[DEFAULT_INDEX]);
+        _display.timerExec(1000 * INTERVALS[DEFAULT_INDEX], _refreshTask);
+        
+        combo.addModifyListener(
+                new ModifyListener()
+                {
+                    public void modifyText(final ModifyEvent e)
+                    {
+                        _display.timerExec(-1, _refreshTask); //cancels existing refresh runnable
+                        _refreshTask = new RefreshTask(INTERVALS[combo.getSelectionIndex()]);
+                        _display.timerExec(0, _refreshTask); //immediately refresh and begin new schedule
+                    }
+                });
+        
+        return holder;
+    }
+    
+    
+    private class RefreshTask implements Runnable
+    {
+        private int seconds;
+        
+        public RefreshTask(int secs)
+        {
+            this.seconds = secs;
+        }
+
+        @Override
+        public void run()
+        {
+            IWorkbenchWindow window = PlatformUI.getWorkbench().getActiveWorkbenchWindow(); 
+            final MBeanView mbView = (MBeanView)window.getActivePage().findView(MBeanView.ID);
+
+            final NavigationView navView = (NavigationView)window.getActivePage().findView(NavigationView.ID);
+            try
+            {
+                mbView.refresh();
+                navView.refresh();
+            }
+            catch (Exception ex)
+            {
+                MBeanUtility.handleException(ex);
+            }
+
+            _display.timerExec(1000 * seconds, this);
+        }
+        
+    }
+    
+}