1 files changed, 107 insertions, 0 deletions
diff --git a/uitest/src/com/vaadin/tests/PerformanceTestSubTreeCaching.java b/uitest/src/com/vaadin/tests/PerformanceTestSubTreeCaching.java
new file mode 100644
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+++ b/uitest/src/com/vaadin/tests/PerformanceTestSubTreeCaching.java
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+/* 
+ * Copyright 2011 Vaadin Ltd.
+ * 
+ * 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.vaadin.tests;
+
+import java.util.Date;
+
+import com.vaadin.shared.ui.label.ContentMode;
+import com.vaadin.ui.Button;
+import com.vaadin.ui.Button.ClickEvent;
+import com.vaadin.ui.CustomComponent;
+import com.vaadin.ui.Label;
+import com.vaadin.ui.Table;
+import com.vaadin.ui.VerticalLayout;
+
+public class PerformanceTestSubTreeCaching extends CustomComponent {
+
+    private final VerticalLayout main;
+
+    private final VerticalLayout testContainer;
+
+    private Date startTime;
+
+    private final Label result;
+
+    private static final String DESCRIPTION = "Hypothesis: Toolkit 4 has major architechtural problem when adding "
+            + "small incrementall updates to a container which has either a lot or "
+            + "some very slow components in it. Toolkit 5 has 'subtree caching' and a"
+            + " small amount of logic in containers, so CommunicationManager can assure"
+            + " that client do not need information about unchanged components it contains."
+            + " Completing test ought to be much faster with Toolkit 5.";
+
+    private static final int INITIAL_COMPONENTS = 40;
+
+    public PerformanceTestSubTreeCaching() {
+        main = new VerticalLayout();
+        setCompositionRoot(main);
+        addInfo();
+
+        Button b = new Button("start test", new Button.ClickListener() {
+            @Override
+            public void buttonClick(ClickEvent event) {
+                startTest();
+            }
+        });
+        b.setDescription("Push this button to start test. A test label will be rendered above existing components.");
+        main.addComponent(b);
+        b = new Button("end test", new Button.ClickListener() {
+            @Override
+            public void buttonClick(ClickEvent event) {
+                endTest();
+            }
+        });
+        b.setDescription("Push this button as soon as test componenet is rendered.");
+        main.addComponent(b);
+
+        result = new Label();
+        main.addComponent(result);
+
+        testContainer = new VerticalLayout();
+        populateContainer(testContainer, INITIAL_COMPONENTS);
+        main.addComponent(testContainer);
+    }
+
+    public void startTest() {
+        startTime = new Date();
+        testContainer.addComponentAsFirst(new Label("Simplel Test Component"));
+    }
+
+    public void endTest() {
+        final long millis = (new Date()).getTime() - startTime.getTime();
+        final Float f = new Float(millis / 1000.0);
+        result.setValue("Test completed in " + f + " seconds");
+    }
+
+    /**
+     * Adds n Table components to given container
+     * 
+     * @param testContainer2
+     */
+    private void populateContainer(VerticalLayout container, int n) {
+        for (int i = 0; i < n; i++) {
+            // array_type array_element = [i];
+            final Table t = TestForTablesInitialColumnWidthLogicRendering
+                    .getTestTable(5, 100);
+            container.addComponent(t);
+        }
+    }
+
+    private void addInfo() {
+        main.addComponent(new Label(DESCRIPTION, ContentMode.XHTML));
+    }
+
+}