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Posted to commits@jmeter.apache.org by pm...@apache.org on 2017/01/16 20:07:02 UTC

svn commit: r1779097 - in /jmeter/trunk: src/components/org/apache/jmeter/thinktime/ src/core/org/apache/jmeter/gui/action/ src/core/org/apache/jmeter/gui/action/thinktime/ src/core/org/apache/jmeter/gui/util/ src/core/org/apache/jmeter/resources/ src/...

Author: pmouawad
Date: Mon Jan 16 20:07:01 2017
New Revision: 1779097

URL: http://svn.apache.org/viewvc?rev=1779097&view=rev
Log:
Bug 58943 - Create a Better Think Time experience
Contributed by UbikLoadPack
Bugzilla Id: 58943

Added:
    jmeter/trunk/src/components/org/apache/jmeter/thinktime/
    jmeter/trunk/src/components/org/apache/jmeter/thinktime/DefaultThinkTimeCreator.java   (with props)
    jmeter/trunk/src/core/org/apache/jmeter/gui/action/AddThinkTimeBetweenEachStep.java   (with props)
    jmeter/trunk/src/core/org/apache/jmeter/gui/action/thinktime/
    jmeter/trunk/src/core/org/apache/jmeter/gui/action/thinktime/ThinkTimeCreator.java   (with props)
Modified:
    jmeter/trunk/src/core/org/apache/jmeter/gui/action/ActionNames.java
    jmeter/trunk/src/core/org/apache/jmeter/gui/util/MenuFactory.java
    jmeter/trunk/src/core/org/apache/jmeter/resources/messages.properties
    jmeter/trunk/src/core/org/apache/jmeter/resources/messages_fr.properties
    jmeter/trunk/src/core/org/apache/jmeter/threads/gui/AbstractThreadGroupGui.java
    jmeter/trunk/xdocs/changes.xml
    jmeter/trunk/xdocs/usermanual/properties_reference.xml

Added: jmeter/trunk/src/components/org/apache/jmeter/thinktime/DefaultThinkTimeCreator.java
URL: http://svn.apache.org/viewvc/jmeter/trunk/src/components/org/apache/jmeter/thinktime/DefaultThinkTimeCreator.java?rev=1779097&view=auto
==============================================================================
--- jmeter/trunk/src/components/org/apache/jmeter/thinktime/DefaultThinkTimeCreator.java (added)
+++ jmeter/trunk/src/components/org/apache/jmeter/thinktime/DefaultThinkTimeCreator.java Mon Jan 16 20:07:01 2017
@@ -0,0 +1,83 @@
+/*
+ * 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.jmeter.thinktime;
+
+import org.apache.jmeter.exceptions.IllegalUserActionException;
+import org.apache.jmeter.gui.GuiPackage;
+import org.apache.jmeter.gui.action.thinktime.ThinkTimeCreator;
+import org.apache.jmeter.gui.tree.JMeterTreeNode;
+import org.apache.jmeter.sampler.TestAction;
+import org.apache.jmeter.sampler.gui.TestActionGui;
+import org.apache.jmeter.timers.RandomTimer;
+import org.apache.jmeter.timers.gui.UniformRandomTimerGui;
+import org.apache.jmeter.util.JMeterUtils;
+
+/**
+ * Default implementation of {@link ThinkTimeCreator}
+ * @since 3.2
+ */
+public class DefaultThinkTimeCreator implements ThinkTimeCreator {
+    private static final String DEFAULT_TIMER_IMPLEMENTATION = 
+            JMeterUtils.getPropDefault(
+                    "think_time_creator.default_timer_implementation", 
+                    UniformRandomTimerGui.class.getName());
+
+    private static final String DEFAULT_PAUSE = 
+            JMeterUtils.getPropDefault(
+                    "think_time_creator.default_constant_pause", 
+                    "1000");
+
+    private static final String DEFAULT_RANGE = 
+            JMeterUtils.getPropDefault(
+                    "think_time_creator.default_range", 
+                    "100");
+
+    /**
+     */
+    public DefaultThinkTimeCreator() {
+        super();
+    }
+
+    /**
+     * 
+     * @param guiPackage {@link GuiPackage}
+     * @param parentNode {@link JMeterTreeNode}
+     * @return array of {@link JMeterTreeNode}
+     * @throws IllegalUserActionException
+     */
+    @Override
+    public JMeterTreeNode[] createThinkTime(GuiPackage guiPackage, JMeterTreeNode parentNode) 
+            throws IllegalUserActionException {
+        TestAction testAction = (TestAction) guiPackage.createTestElement(TestActionGui.class.getName());
+        testAction.setAction(TestAction.PAUSE);
+        testAction.setDuration("0");
+        JMeterTreeNode thinkTimeNode = new JMeterTreeNode(testAction, guiPackage.getTreeModel());
+        thinkTimeNode.setName("Think Time");
+        RandomTimer randomTimer = (RandomTimer) 
+                guiPackage.createTestElement(DEFAULT_TIMER_IMPLEMENTATION);
+        randomTimer.setDelay(DEFAULT_PAUSE);
+        randomTimer.setRange(DEFAULT_RANGE);
+        randomTimer.setName("Pause");
+        
+        JMeterTreeNode urtNode = new JMeterTreeNode(randomTimer, guiPackage.getTreeModel());        
+        return new JMeterTreeNode[] {
+                thinkTimeNode,
+                urtNode
+        };
+    }
+}

Propchange: jmeter/trunk/src/components/org/apache/jmeter/thinktime/DefaultThinkTimeCreator.java
------------------------------------------------------------------------------
    svn:mime-type = text/plain

Modified: jmeter/trunk/src/core/org/apache/jmeter/gui/action/ActionNames.java
URL: http://svn.apache.org/viewvc/jmeter/trunk/src/core/org/apache/jmeter/gui/action/ActionNames.java?rev=1779097&r1=1779096&r2=1779097&view=diff
==============================================================================
--- jmeter/trunk/src/core/org/apache/jmeter/gui/action/ActionNames.java (original)
+++ jmeter/trunk/src/core/org/apache/jmeter/gui/action/ActionNames.java Mon Jan 16 20:07:01 2017
@@ -34,6 +34,7 @@ public final class ActionNames {
     public static final String ADD_ALL          = "add_all"; // $NON-NLS-1$
     public static final String ADD_PARENT       = "Add Parent"; // $NON-NLS-1$
     public static final String ANALYZE_FILE     = "Analyze File"; // $NON-NLS-1$
+    public static final String ADD_THINK_TIME_BETWEEN_EACH_STEP    = "Add Think Time between each step"; // $NON-NLS-1$
     public static final String CHANGE_LANGUAGE  = "change_language"; // $NON-NLS-1$
     public static final String CHANGE_PARENT    = "Change Parent"; // $NON-NLS-1$
     public static final String CHECK_DIRTY      = "check_dirty"; // $NON-NLS-1$

Added: jmeter/trunk/src/core/org/apache/jmeter/gui/action/AddThinkTimeBetweenEachStep.java
URL: http://svn.apache.org/viewvc/jmeter/trunk/src/core/org/apache/jmeter/gui/action/AddThinkTimeBetweenEachStep.java?rev=1779097&view=auto
==============================================================================
--- jmeter/trunk/src/core/org/apache/jmeter/gui/action/AddThinkTimeBetweenEachStep.java (added)
+++ jmeter/trunk/src/core/org/apache/jmeter/gui/action/AddThinkTimeBetweenEachStep.java Mon Jan 16 20:07:01 2017
@@ -0,0 +1,152 @@
+/*
+ * 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.jmeter.gui.action;
+
+import java.awt.Toolkit;
+import java.awt.event.ActionEvent;
+import java.util.HashSet;
+import java.util.Set;
+
+import org.apache.jmeter.control.Controller;
+import org.apache.jmeter.exceptions.IllegalUserActionException;
+import org.apache.jmeter.gui.GuiPackage;
+import org.apache.jmeter.gui.action.thinktime.ThinkTimeCreator;
+import org.apache.jmeter.gui.tree.JMeterTreeNode;
+import org.apache.jmeter.samplers.Sampler;
+import org.apache.jmeter.threads.ThreadGroup;
+import org.apache.jmeter.util.JMeterUtils;
+import org.apache.jorphan.logging.LoggingManager;
+import org.apache.log.Logger;
+
+/**
+ * Add ThinkTime (TestAction + UniformRandomTimer)
+ * @since 3.2
+ */
+public class AddThinkTimeBetweenEachStep extends AbstractAction {
+    private static final Logger log = LoggingManager.getLoggerForClass();
+
+    private static final Set<String> commands = new HashSet<>();
+    
+    private static final String DEFAULT_IMPLEMENTATION = 
+            JMeterUtils.getPropDefault("think_time_creator.impl", 
+                    "org.apache.jmeter.thinktime.DefaultThinkTimeCreator");
+    static {
+        commands.add(ActionNames.ADD_THINK_TIME_BETWEEN_EACH_STEP);
+    }
+
+    /**
+     * 
+     */
+    public AddThinkTimeBetweenEachStep() {
+        super();
+    }
+
+    @Override
+    public void doAction(ActionEvent e) {
+        GuiPackage guiPackage = GuiPackage.getInstance();
+        JMeterTreeNode currentNode = guiPackage.getTreeListener().getCurrentNode();
+        if (!
+                (currentNode.getUserObject() instanceof Controller ||
+                        currentNode.getUserObject() instanceof ThreadGroup)
+                ) {
+            Toolkit.getDefaultToolkit().beep();
+            return;
+        }
+        try {
+            addThinkTimeToChildren(guiPackage, currentNode);            
+        } catch (Exception err) {
+            Toolkit.getDefaultToolkit().beep();
+            log.error("Failed to add think times", err);
+            JMeterUtils.reportErrorToUser("Failed to add think times", err);
+        }
+    }
+
+    /**
+     * Add Think Time to children of parentNode
+     * @param guiPackage {@link GuiPackage}
+     * @param parentNode Parent node of elements on which we add think times
+     * @throws IllegalUserActionException 
+     */
+    private void addThinkTimeToChildren(GuiPackage guiPackage, 
+            JMeterTreeNode parentNode) throws IllegalUserActionException {
+        guiPackage.updateCurrentNode();
+        boolean insertThinkTime = false;
+        try {
+            int index = 0;
+            while(true) {
+                if(index == parentNode.getChildCount()) {
+                    index++;
+                    break;
+                }
+                JMeterTreeNode childNode = (JMeterTreeNode) parentNode.getChildAt(index);
+                Object userObject = childNode.getUserObject();
+                if(userObject instanceof Sampler ||
+                        userObject instanceof Controller) {
+                    insertThinkTime = true;                
+                }
+                if(insertThinkTime) {
+                    JMeterTreeNode[] nodes = createThinkTime(guiPackage, parentNode);
+                    if(nodes.length != 2) {
+                        throw new IllegalArgumentException("Invalid Think Time, expected 2 nodes, got:"+nodes.length);
+                    }
+                    index++;
+                    addNodesToTreeHierachically(guiPackage, parentNode, nodes, index);
+                    insertThinkTime = false;
+                }
+                index++;
+            }
+        } catch(Exception ex) {
+            throw new IllegalUserActionException("Cannot add think times", ex);
+        }
+    }
+
+    /**
+     * add nodes to JMeter Tree
+     * @param guiPackage {@link GuiPackage}
+     * @param parentNode {@link JMeterTreeNode}
+     * @param childNodes Child nodes
+     * @param index insertion index
+     */
+    private void addNodesToTreeHierachically(GuiPackage guiPackage, 
+            JMeterTreeNode parentNode, 
+            JMeterTreeNode[] childNodes, 
+            int index) {
+        guiPackage.getTreeModel().insertNodeInto(childNodes[0], parentNode, index);    
+        guiPackage.getTreeModel().insertNodeInto(childNodes[1], childNodes[0], 0);
+    }
+
+    /**
+     * 
+     * @param guiPackage {@link GuiPackage}
+     * @param parentNode {@link JMeterTreeNode}
+     * @return array of {@link JMeterTreeNode}
+     * @throws IllegalUserActionException
+     */
+    private JMeterTreeNode[] createThinkTime(GuiPackage guiPackage, JMeterTreeNode parentNode) 
+        throws Exception {
+        Class<?> clazz = Class.forName(DEFAULT_IMPLEMENTATION);
+        ThinkTimeCreator thinkTimeCreator = (ThinkTimeCreator) clazz.newInstance();
+        return thinkTimeCreator.createThinkTime(guiPackage, parentNode);
+    }
+    
+    @Override
+    public Set<String> getActionNames() {
+        return commands;
+    }
+}

Propchange: jmeter/trunk/src/core/org/apache/jmeter/gui/action/AddThinkTimeBetweenEachStep.java
------------------------------------------------------------------------------
    svn:mime-type = text/plain

Added: jmeter/trunk/src/core/org/apache/jmeter/gui/action/thinktime/ThinkTimeCreator.java
URL: http://svn.apache.org/viewvc/jmeter/trunk/src/core/org/apache/jmeter/gui/action/thinktime/ThinkTimeCreator.java?rev=1779097&view=auto
==============================================================================
--- jmeter/trunk/src/core/org/apache/jmeter/gui/action/thinktime/ThinkTimeCreator.java (added)
+++ jmeter/trunk/src/core/org/apache/jmeter/gui/action/thinktime/ThinkTimeCreator.java Mon Jan 16 20:07:01 2017
@@ -0,0 +1,39 @@
+/*
+ * 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.jmeter.gui.action.thinktime;
+
+import org.apache.jmeter.exceptions.IllegalUserActionException;
+import org.apache.jmeter.gui.GuiPackage;
+import org.apache.jmeter.gui.tree.JMeterTreeNode;
+
+/**
+ * Interface for a ThinkTime creator
+ * @since 3.2
+ */
+public interface ThinkTimeCreator {
+
+    /**
+     * Create think time
+     * @param guiPackage {@link GuiPackage}
+     * @param parentNode {@link JMeterTreeNode}
+     * @return array of 2 nodes 
+     * @throws IllegalUserActionException
+     */
+    JMeterTreeNode[] createThinkTime(GuiPackage guiPackage, JMeterTreeNode parentNode) throws IllegalUserActionException;
+}

Propchange: jmeter/trunk/src/core/org/apache/jmeter/gui/action/thinktime/ThinkTimeCreator.java
------------------------------------------------------------------------------
    svn:mime-type = text/plain

Modified: jmeter/trunk/src/core/org/apache/jmeter/gui/util/MenuFactory.java
URL: http://svn.apache.org/viewvc/jmeter/trunk/src/core/org/apache/jmeter/gui/util/MenuFactory.java?rev=1779097&r1=1779096&r2=1779097&view=diff
==============================================================================
--- jmeter/trunk/src/core/org/apache/jmeter/gui/util/MenuFactory.java (original)
+++ jmeter/trunk/src/core/org/apache/jmeter/gui/util/MenuFactory.java Mon Jan 16 20:07:01 2017
@@ -287,12 +287,16 @@ public final class MenuFactory {
         pop.add(MenuFactory.makeMenus(MENU_ADD_CONTROLLER,
                 JMeterUtils.getResString("add"),// $NON-NLS-1$
                 ActionNames.ADD));
-        pop.add(makeMenus(MENU_PARENT_CONTROLLER,
-                JMeterUtils.getResString("insert_parent"),// $NON-NLS-1$
-                ActionNames.ADD_PARENT));
+        pop.add(MenuFactory.makeMenuItemRes("add_think_times",// $NON-NLS-1$
+                ActionNames.ADD_THINK_TIME_BETWEEN_EACH_STEP));
+
         pop.add(makeMenus(MENU_PARENT_CONTROLLER,
                 JMeterUtils.getResString("change_parent"),// $NON-NLS-1$
                 ActionNames.CHANGE_PARENT));
+
+        pop.add(makeMenus(MENU_PARENT_CONTROLLER,
+                JMeterUtils.getResString("insert_parent"),// $NON-NLS-1$
+                ActionNames.ADD_PARENT));
         MenuFactory.addEditMenu(pop, true);
         MenuFactory.addFileMenu(pop);
         return pop;

Modified: jmeter/trunk/src/core/org/apache/jmeter/resources/messages.properties
URL: http://svn.apache.org/viewvc/jmeter/trunk/src/core/org/apache/jmeter/resources/messages.properties?rev=1779097&r1=1779096&r2=1779097&view=diff
==============================================================================
--- jmeter/trunk/src/core/org/apache/jmeter/resources/messages.properties (original)
+++ jmeter/trunk/src/core/org/apache/jmeter/resources/messages.properties Mon Jan 16 20:07:01 2017
@@ -32,6 +32,7 @@ add_test=Add Test
 add_user=Add User
 add_value=Add Value
 addtest=Add test
+add_think_times=Add Think Times to children
 aggregate_graph=Statistical Graphs
 aggregate_graph_choose_color=Choose color
 aggregate_graph_choose_foreground_color=Foreground color

Modified: jmeter/trunk/src/core/org/apache/jmeter/resources/messages_fr.properties
URL: http://svn.apache.org/viewvc/jmeter/trunk/src/core/org/apache/jmeter/resources/messages_fr.properties?rev=1779097&r1=1779096&r2=1779097&view=diff
==============================================================================
--- jmeter/trunk/src/core/org/apache/jmeter/resources/messages_fr.properties (original)
+++ jmeter/trunk/src/core/org/apache/jmeter/resources/messages_fr.properties Mon Jan 16 20:07:01 2017
@@ -23,6 +23,7 @@ add_from_suggested_excludes=Ajouter excl
 add_parameter=Ajouter un param\u00E8tre
 add_pattern=Ajouter un motif \:
 add_test=Ajout
+add_think_times=Add Think Times to children
 add_user=Ajouter un utilisateur
 add_value=Ajouter valeur
 addtest=Ajout

Modified: jmeter/trunk/src/core/org/apache/jmeter/threads/gui/AbstractThreadGroupGui.java
URL: http://svn.apache.org/viewvc/jmeter/trunk/src/core/org/apache/jmeter/threads/gui/AbstractThreadGroupGui.java?rev=1779097&r1=1779096&r2=1779097&view=diff
==============================================================================
--- jmeter/trunk/src/core/org/apache/jmeter/threads/gui/AbstractThreadGroupGui.java (original)
+++ jmeter/trunk/src/core/org/apache/jmeter/threads/gui/AbstractThreadGroupGui.java Mon Jan 16 20:07:01 2017
@@ -38,7 +38,6 @@ import org.apache.jmeter.gui.util.MenuFa
 import org.apache.jmeter.testelement.TestElement;
 import org.apache.jmeter.testelement.property.StringProperty;
 import org.apache.jmeter.threads.AbstractThreadGroup;
-import org.apache.jmeter.threads.JMeterContextService;
 import org.apache.jmeter.util.JMeterUtils;
 
 public abstract class AbstractThreadGroupGui extends AbstractJMeterGuiComponent {
@@ -86,6 +85,13 @@ public abstract class AbstractThreadGrou
                 // Check test is not started already
                 !JMeterUtils.isTestRunning()) {
             pop.addSeparator();
+
+            JMenuItem addThinkTimesToChildren = new JMenuItem(JMeterUtils.getResString("add_think_times"));
+            addThinkTimesToChildren.setName("add_think_times");
+            addThinkTimesToChildren.addActionListener(ActionRouter.getInstance());
+            addThinkTimesToChildren.setActionCommand(ActionNames.ADD_THINK_TIME_BETWEEN_EACH_STEP);
+            pop.add(addThinkTimesToChildren);
+
             JMenuItem runTg = new JMenuItem(JMeterUtils.getResString("run_threadgroup"));
             runTg.setName("run_threadgroup");
             runTg.addActionListener(ActionRouter.getInstance());
@@ -103,6 +109,7 @@ public abstract class AbstractThreadGrou
             validateTg.addActionListener(ActionRouter.getInstance());
             validateTg.setActionCommand(ActionNames.VALIDATE_TG);
             pop.add(validateTg);
+
         }
         
         MenuFactory.addEditMenu(pop, true);

Modified: jmeter/trunk/xdocs/changes.xml
URL: http://svn.apache.org/viewvc/jmeter/trunk/xdocs/changes.xml?rev=1779097&r1=1779096&r2=1779097&view=diff
==============================================================================
--- jmeter/trunk/xdocs/changes.xml [utf-8] (original)
+++ jmeter/trunk/xdocs/changes.xml [utf-8] Mon Jan 16 20:07:01 2017
@@ -133,6 +133,7 @@ JMeter now requires Java 8. Ensure you u
 <ul>
     <li><bug>60154</bug>User Parameters GUI: allow rows to be moved up &amp; down in the list. Contributed by Murdecai777 (https://github.com/Murdecai777).</li>
     <li><bug>60507</bug>Added '<code>Or</code>' Function into ResponseAssertion. Based on a contribution from \u5ffb\u9686 (298015902 at qq.com)</li>
+    <li><bug>58943</bug>Create a Better Think Time experience. Contributed by Ubik Load Pack (support at ubikloadpack.com)</li>
 </ul>
 
 <h3>Functions</h3>

Modified: jmeter/trunk/xdocs/usermanual/properties_reference.xml
URL: http://svn.apache.org/viewvc/jmeter/trunk/xdocs/usermanual/properties_reference.xml?rev=1779097&r1=1779096&r2=1779097&view=diff
==============================================================================
--- jmeter/trunk/xdocs/usermanual/properties_reference.xml (original)
+++ jmeter/trunk/xdocs/usermanual/properties_reference.xml Mon Jan 16 20:07:01 2017
@@ -1791,6 +1791,23 @@ log_level.org.apache.http.client=DEBUG
     </ul>
     Defaults to: <code>1.0f</code>
 </property>
+<property name="think_time_creator.impl">
+    Default implementation that create the Timer structure to add to Test Plan. 
+    Implementation of interface org.apache.jmeter.gui.action.thinktime.ThinkTimeCreator
+    Defaults to: <code><a href="../api/org/apache/jmeter/thinktime/DefaultThinkTimeCreator.html"><code>org.apache.jmeter.thinktime.DefaultThinkTimeCreator</code></a></code>
+</property>
+<property name="think_time_creator.default_timer_implementation">
+    Default Timer GUI class added to Test Plan by DefaultThinkTimeCreator
+    Defaults to: <code><a href="../api/org/apache/jmeter/timers/gui/UniformRandomTimerGui.html"><code>org.apache.jmeter.timers.gui.UniformRandomTimerGui</code></a></code>
+</property>
+<property name="think_time_creator.default_constant_pause">
+    Default constant pause of Timer
+    Defaults to: <code>1000</code>
+</property>
+<property name="think_time_creator.default_range">
+    Default range pause of Timer
+    Defaults to: <code>100</code>
+</property>
 </properties>
 <a href="#">^</a>
 </section>