simulator.views
Class Simulator

java.lang.Object
  java.awt.Component
      java.awt.Container
          java.awt.Window
              java.awt.Frame
                  javax.swing.JFrame
                      simulator.views.Simulator

All Implemented Interfaces:

java.awt.event.ActionListener, java.awt.event.WindowListener, java.awt.image.ImageObserver, java.awt.MenuContainer, java.io.Serializable, java.util.EventListener, javax.accessibility.Accessible, javax.swing.RootPaneContainer, javax.swing.WindowConstants

public class Simulator
extends javax.swing.JFrame
implements java.awt.event.ActionListener, java.awt.event.WindowListener

This is the main class for executing simulations/experiments using a scenario configuration with proxies and proxy groups.

Author:

Leo Bosnjak

See Also:

Serialized Form

Nested Class Summary

protected static class	Simulator.FormSubgroupsMode
(package private) class	Simulator.NetClosenessThread inner class to calculate bandwidths of one group evaluation
protected static class	Simulator.SimExecMode
(package private) class	Simulator.SimulationThread inner class to simulate network closeness or semantic closeness with evaluation
protected static class	Simulator.SimulationType

Nested classes/interfaces inherited from class javax.swing.JFrame

javax.swing.JFrame.AccessibleJFrame

Nested classes/interfaces inherited from class java.awt.Frame

java.awt.Frame.AccessibleAWTFrame

Nested classes/interfaces inherited from class java.awt.Window

java.awt.Window.AccessibleAWTWindow

Nested classes/interfaces inherited from class java.awt.Container

java.awt.Container.AccessibleAWTContainer

Nested classes/interfaces inherited from class java.awt.Component

java.awt.Component.AccessibleAWTComponent, java.awt.Component.BaselineResizeBehavior, java.awt.Component.BltBufferStrategy, java.awt.Component.FlipBufferStrategy

Field Summary

private javax.swing.JButton	closeButton
private int	colorIdx
(package private) java.lang.String	DATE_FORMAT
private javax.swing.JButton	executeButton
private static java.awt.Color[]	groupColors
private boolean	isOpened
private javax.swing.JButton	loadButton
private NodeEdgeMap	map
private static java.lang.String	MEASUREMENTS_DIR
private static java.lang.String	MEASUREMENTS_FILE_EXT
private static java.lang.String	MENU_CLOSE
private static java.lang.String	MENU_LOAD_CONFIG
private static java.lang.String	MENU_SAVE_CONFIG
private static java.lang.String	MENU_SHOW_RESULTS
private static java.lang.String	MENU_TITLE_1
private boolean	needSave
private static java.lang.String	NET1_MEASUREMENTS_PREFIX
private static java.lang.String	NET2_MEASUREMENTS_PREFIX
private javax.swing.JFrame	parentFrame
private PlanetLabMgr	planetLabApi
private PlanetLabXmlRpcCaller	planetSh
private javax.swing.JButton	saveButton
private javax.swing.JComboBox	scenarioCombo
private ScenarioConfig	scenarioConfig
private static java.lang.String	SEMANTIC_MEASUREMENTS_PREFIX
private static long	serialVersionUID
private java.lang.String	simName
private static java.lang.String	titlePrefix
private static java.lang.String	VIDEOFILES_PREFIX

Fields inherited from class javax.swing.JFrame

accessibleContext, EXIT_ON_CLOSE, rootPane, rootPaneCheckingEnabled

Fields inherited from class java.awt.Frame

CROSSHAIR_CURSOR, DEFAULT_CURSOR, E_RESIZE_CURSOR, HAND_CURSOR, ICONIFIED, MAXIMIZED_BOTH, MAXIMIZED_HORIZ, MAXIMIZED_VERT, MOVE_CURSOR, N_RESIZE_CURSOR, NE_RESIZE_CURSOR, NORMAL, NW_RESIZE_CURSOR, S_RESIZE_CURSOR, SE_RESIZE_CURSOR, SW_RESIZE_CURSOR, TEXT_CURSOR, W_RESIZE_CURSOR, WAIT_CURSOR

Fields inherited from class java.awt.Component

BOTTOM_ALIGNMENT, CENTER_ALIGNMENT, LEFT_ALIGNMENT, RIGHT_ALIGNMENT, TOP_ALIGNMENT

Fields inherited from interface javax.swing.WindowConstants

DISPOSE_ON_CLOSE, DO_NOTHING_ON_CLOSE, HIDE_ON_CLOSE

Fields inherited from interface java.awt.image.ImageObserver

ABORT, ALLBITS, ERROR, FRAMEBITS, HEIGHT, PROPERTIES, SOMEBITS, WIDTH

Constructor Summary

Simulator(javax.swing.JFrame parent, ScenarioConfig config, NodeEdgeMap map, PlanetLabMgr planetLabApi)
Creates and initializes a simulator object instance

Method Summary

void	actionPerformed(java.awt.event.ActionEvent evt) Handles all the events that occur in the GUI.
private boolean	areVideoFilesAssigned() Checks whether the video files are assigned to each proxy of this group.
private boolean	areVideoFilesAssigned(ProxyGroup group) Checks whether the video files are assigned to each proxy of this group.
private boolean	assignVideofilesToGroup(java.util.Hashtable<java.lang.Integer,VideoFile> videoFiles, ProxyGroup group, double filesPerNodePercentage, double sigmaPercentage, boolean forceAssignment) Assign some number of files to each node of this group.
private boolean	assignVideofilesToProxy(java.util.Hashtable<java.lang.Integer,VideoFile> videoFiles, X2XProxy proxy, int nrOfFilesForNode) choose some video files that will belong to this node
private double	calculateAvgBandwidth(java.util.Vector<structBandwidthInfo> groupBandwidths) Calculates the average Bandwidth of the given values.
private double	calculateAvgBwToNode(ProxyGroup group, java.util.Hashtable<X2XProxy,java.util.Vector<structBandwidthInfo>> bwsPerNode, X2XProxy refProxy, boolean printBestWorstStats) Calculates the average bandwidth of every node of the ProxyGroup to the given reference node.
private double	calculateAvgGroupBw(ProxyGroup group, java.util.Hashtable<X2XProxy,java.util.Vector<structBandwidthInfo>> bwsPerNode, boolean printBestWorstStats) Calculates the average bandwidth of the ProxyGroup.
private java.util.Vector<ProxyGroup>	calculateBandwidthsForGroup(ProxyGroup group, java.lang.String resultFilePath, Simulator.SimExecMode execMode, java.util.Hashtable<java.lang.String,java.lang.Double> groupBws, Simulator.FormSubgroupsMode subgroupMode) Calculates the bandwidths in this group (by using PlabClientCaller) and forms subgroups by calculating netCloseness
private java.lang.String	chooseResultFile(boolean addPrefix, boolean addExtension, boolean useSimNameAsFilter, java.lang.String filePrefix) Shows an InputDialog with all the result files in the Results-directory.
private java.lang.String	chooseVideoFilesConfig() Lets the user choose the saved video files config.
private ResultParser	createResultParserForGroup(ProxyGroup group) creates the medisyn ResultParser and parses the medisyn-requests for the given group
private java.util.Hashtable<ProxyGroup,java.lang.Double>	evaluateNetClAvgGroupBandwidths(java.util.Vector<ProxyGroup> proxyGroups, java.util.Hashtable<X2XProxy,java.util.Vector<StructBandwidthInfoBean>> bwsPerNode) Evaluate average group bandwidths and print them to stdout 1.
private boolean	evaluateNetworkCloseness1(java.util.Vector<ProxyGroup> semanticProxyGroups, java.util.Vector<ProxyGroup> netProxyGroups) evaluate the net-closeness results (subgroups of semantic groups) using the request-logs generated through medisyn
private boolean	evaluateNetworkCloseness2(java.lang.String groupNameFilter, java.util.Vector<ProxyGroup> semanticProxyGroups, java.util.Vector<ProxyGroup> netProxyGroups) evaluate the net-closeness results (subgroups of semantic groups) using the request-logs generated through medisyn
private void	examineRequestResults(java.util.Hashtable<Request,java.lang.Integer> requestResults) Calculate statistics for requestResults and print them to sysout
private boolean	formBandwidthGroups(java.lang.String selectedGroup) For each proxygroup the bandwidths of all nodes to each other are calculated.
private java.util.Vector<ProxyGroup>	formBandwidthSubGroupsFromGroup(ProxyGroup oldGroup, java.util.Hashtable<X2XProxy,java.util.Vector<structBandwidthInfo>> bwsPerNode) forms subgroups based on network bandwidth of ONE semantically formed proxy group
private java.util.Vector<ProxyGroup>	formBandwidthSubGroupsFromGroupV2(ProxyGroup oldGroup, java.util.Hashtable<X2XProxy,java.util.Vector<structBandwidthInfo>> bwsPerNode) forms subgroups based on network bandwidth of ONE semantically formed proxy group Changes to v1: (- single node groups are formed if the bandwidth-limit is reached) - Groups with a greater size are favoured - Additionally: if the nr of subgroups formed by Algorithm v2 is NOT smaller than the nr of subgroups formed by Algorithm v1, then the result of Algorithm v1 is taken because it has better avg-group-bandwidths.
private java.util.Vector<ProxyGroup>	formBandwidthSubGroupsFromGroupV2Internal(ProxyGroup oldGroup, java.util.Hashtable<X2XProxy,java.util.Vector<structBandwidthInfo>> bwsPerNode) forms subgroups based on network bandwidth of ONE semantically formed proxy group Changes to v1: (- single node groups are formed if the bandwidth-limit is reached) - Groups with a greater size are favoured
ScenarioNodeMgr	getNodeMgr()
private java.util.Vector<ProxyGroup>	getProxyGroupsFromResults(java.util.Hashtable<X2XProxy,java.util.Vector<StructBandwidthInfoBean>> resultsTable) Get the proxy groups of the nodes using the results.
ScenarioConfig	getScenarioConfig()
private void	init(javax.swing.JFrame parent, java.lang.String title) initializes the window layout and its elements
private void	initMenu() Adds the entries to the menu.
private boolean	loadAssignedVideoFiles(java.lang.String filePath) Loades the video files config which was assigned to each proxy of the scenario from a file.
private java.util.Hashtable<X2XProxy,java.util.Vector<StructBandwidthInfoBean>>	loadBandwidthResults(java.lang.String resultFilePath, java.util.Vector<X2XProxy> currentProxies) Load the bandwidth measurement results from the file and put them into the Hashtable.
private void	loadScenario() Load the scenario configuration from a file.
private boolean	measureAndCalcAvgBwsPerGroup(boolean onlyToLeaders, boolean exceptLeaders, boolean saveResults, java.lang.String resultFilePath) Measures and calculates the average bandwidths of each proxygroup in the scenario configuration and saves them to a file if neccessary.
private boolean	measureBwsPerGroup(ProxyGroup group, boolean onlyToLeader, boolean exceptLeader, java.util.Hashtable<X2XProxy,java.util.Vector<StructBandwidthInfoBean>> bwsPerNode) Measures the bandwidths betweeen the proxies of a group.
private ResultParser	parseAndAssignVideoFilesToGroup(ProxyGroup group, boolean forceAssignment) Creates the ResultParser for the given group which parses the required medisyn request log.
boolean	parseAndAssignVideoFilesToScenarioGroups() Parses the medisyn request log of each proxy group of the scenario.
private void	printGroupAvgBandwidths(java.util.Hashtable<ProxyGroup,java.lang.Double> groupBws)
private void	printGroupAvgBandwidths2(java.util.Vector<ProxyGroup> proxyGroups, java.util.Hashtable<java.lang.String,java.lang.Double> groupBws) print out the calculated average group-bandwidths for each group
private void	printProxiesAndGroups(java.util.Vector<ProxyGroup> proxyGroups, java.util.Vector<X2XProxy> proxies) Prints the proxy groups and the proxies to stdout.
private void	printResultHashtable(java.util.Hashtable<X2XProxy,java.util.Vector<StructBandwidthInfoBean>> resultsTable) Print the contents of the resultsTable to stdout.
private boolean	requestVideosFromGroup(java.util.Vector<Request> requests, int maxGroupSize, ProxyGroup group, java.util.Hashtable<Request,java.lang.Integer> requestResults) Simulate some client requests for videos to the group and calculate the requestResults.
private boolean	saveAssignedVideoFiles(java.lang.String filePath) Saves the video files config which is assigned to each proxy of the scenario to a file.
private boolean	saveBandwidthResults(java.lang.String resultFilePath, java.util.Hashtable<X2XProxy,java.util.Vector<StructBandwidthInfoBean>> bwsPerNode) Save the bandwidth measurements to the resultFile, so they can be loaded for an offline run or for evaluation.
private void	saveScenario() save the configuration + the simulation results in file
void	setNodeMgr(ScenarioNodeMgr nodeMgr)
void	setPlanetLabApi(PlanetLabMgr planetLabApi)
void	setScenarioConfig(ScenarioConfig scenarioConfig)
void	showBandwidthResults() Let the user choose a result file.
private boolean	simulateNetworkCloseness1() Simulates the forming of proxy groups by just considering the network closeness.
private boolean	simulateNetworkCloseness1Offline(java.util.Vector<X2XProxy> proxies, java.util.Vector<ProxyGroup> proxyGroups, java.util.Hashtable<X2XProxy,java.util.Vector<StructBandwidthInfoBean>> bwsPerNode) Used for the formation of Network closeness v1 groups.
private boolean	simulateNetworkCloseness1Online(java.util.Vector<X2XProxy> proxies, java.util.Vector<ProxyGroup> proxyGroups, java.util.Hashtable<X2XProxy,java.util.Vector<StructBandwidthInfoBean>> bwsPerNode) Used for the formation of Network closeness v1 groups.
private boolean	simulateNetworkCloseness2() For each proxygroup the bandwidths of all nodes to each other are calculated.
private boolean	simulateSemanticCloseness() Simulates the forming of proxy groups by just considering the semantic closeness
boolean	simulateSemanticCloseness(boolean equalNrOfProxiesPerGroup) Simulates the forming of proxy groups by just considering the semantic closeness
private boolean	simulateSemanticClosenessWithEval() simulates the forming of proxy groups by just considering the semantic closeness
void	windowActivated(java.awt.event.WindowEvent e)
void	windowClosed(java.awt.event.WindowEvent e) Windowlistener interface implementation
void	windowClosing(java.awt.event.WindowEvent e)
void	windowDeactivated(java.awt.event.WindowEvent e)
void	windowDeiconified(java.awt.event.WindowEvent e)
void	windowIconified(java.awt.event.WindowEvent e)
void	windowOpened(java.awt.event.WindowEvent e)

Methods inherited from class javax.swing.JFrame

addImpl, createRootPane, frameInit, getAccessibleContext, getContentPane, getDefaultCloseOperation, getGlassPane, getGraphics, getJMenuBar, getLayeredPane, getRootPane, getTransferHandler, isDefaultLookAndFeelDecorated, isRootPaneCheckingEnabled, paramString, processWindowEvent, remove, repaint, setContentPane, setDefaultCloseOperation, setDefaultLookAndFeelDecorated, setGlassPane, setIconImage, setJMenuBar, setLayeredPane, setLayout, setRootPane, setRootPaneCheckingEnabled, setTransferHandler, update

Methods inherited from class java.awt.Frame

addNotify, getCursorType, getExtendedState, getFrames, getIconImage, getMaximizedBounds, getMenuBar, getState, getTitle, isResizable, isUndecorated, remove, removeNotify, setCursor, setExtendedState, setMaximizedBounds, setMenuBar, setResizable, setState, setTitle, setUndecorated

Methods inherited from class java.awt.Window

addPropertyChangeListener, addPropertyChangeListener, addWindowFocusListener, addWindowListener, addWindowStateListener, applyResourceBundle, applyResourceBundle, createBufferStrategy, createBufferStrategy, dispose, getBufferStrategy, getFocusableWindowState, getFocusCycleRootAncestor, getFocusOwner, getFocusTraversalKeys, getGraphicsConfiguration, getIconImages, getInputContext, getListeners, getLocale, getModalExclusionType, getMostRecentFocusOwner, getOwnedWindows, getOwner, getOwnerlessWindows, getToolkit, getWarningString, getWindowFocusListeners, getWindowListeners, getWindows, getWindowStateListeners, hide, isActive, isAlwaysOnTop, isAlwaysOnTopSupported, isFocusableWindow, isFocusCycleRoot, isFocused, isLocationByPlatform, isShowing, pack, postEvent, processEvent, processWindowFocusEvent, processWindowStateEvent, removeWindowFocusListener, removeWindowListener, removeWindowStateListener, reshape, setAlwaysOnTop, setBounds, setBounds, setCursor, setFocusableWindowState, setFocusCycleRoot, setIconImages, setLocationByPlatform, setLocationRelativeTo, setMinimumSize, setModalExclusionType, setSize, setSize, setVisible, show, toBack, toFront

Methods inherited from class java.awt.Container

add, add, add, add, add, addContainerListener, applyComponentOrientation, areFocusTraversalKeysSet, countComponents, deliverEvent, doLayout, findComponentAt, findComponentAt, getAlignmentX, getAlignmentY, getComponent, getComponentAt, getComponentAt, getComponentCount, getComponents, getComponentZOrder, getContainerListeners, getFocusTraversalPolicy, getInsets, getLayout, getMaximumSize, getMinimumSize, getMousePosition, getPreferredSize, insets, invalidate, isAncestorOf, isFocusCycleRoot, isFocusTraversalPolicyProvider, isFocusTraversalPolicySet, layout, list, list, locate, minimumSize, paint, paintComponents, preferredSize, print, printComponents, processContainerEvent, remove, removeAll, removeContainerListener, setComponentZOrder, setFocusTraversalKeys, setFocusTraversalPolicy, setFocusTraversalPolicyProvider, setFont, transferFocusBackward, transferFocusDownCycle, validate, validateTree

Methods inherited from class java.awt.Component

action, add, addComponentListener, addFocusListener, addHierarchyBoundsListener, addHierarchyListener, addInputMethodListener, addKeyListener, addMouseListener, addMouseMotionListener, addMouseWheelListener, bounds, checkImage, checkImage, coalesceEvents, contains, contains, createImage, createImage, createVolatileImage, createVolatileImage, disable, disableEvents, dispatchEvent, enable, enable, enableEvents, enableInputMethods, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, getBackground, getBaseline, getBaselineResizeBehavior, getBounds, getBounds, getColorModel, getComponentListeners, getComponentOrientation, getCursor, getDropTarget, getFocusListeners, getFocusTraversalKeysEnabled, getFont, getFontMetrics, getForeground, getHeight, getHierarchyBoundsListeners, getHierarchyListeners, getIgnoreRepaint, getInputMethodListeners, getInputMethodRequests, getKeyListeners, getLocation, getLocation, getLocationOnScreen, getMouseListeners, getMouseMotionListeners, getMousePosition, getMouseWheelListeners, getName, getParent, getPeer, getPropertyChangeListeners, getPropertyChangeListeners, getSize, getSize, getTreeLock, getWidth, getX, getY, gotFocus, handleEvent, hasFocus, imageUpdate, inside, isBackgroundSet, isCursorSet, isDisplayable, isDoubleBuffered, isEnabled, isFocusable, isFocusOwner, isFocusTraversable, isFontSet, isForegroundSet, isLightweight, isMaximumSizeSet, isMinimumSizeSet, isOpaque, isPreferredSizeSet, isValid, isVisible, keyDown, keyUp, list, list, list, location, lostFocus, mouseDown, mouseDrag, mouseEnter, mouseExit, mouseMove, mouseUp, move, nextFocus, paintAll, prepareImage, prepareImage, printAll, processComponentEvent, processFocusEvent, processHierarchyBoundsEvent, processHierarchyEvent, processInputMethodEvent, processKeyEvent, processMouseEvent, processMouseMotionEvent, processMouseWheelEvent, removeComponentListener, removeFocusListener, removeHierarchyBoundsListener, removeHierarchyListener, removeInputMethodListener, removeKeyListener, removeMouseListener, removeMouseMotionListener, removeMouseWheelListener, removePropertyChangeListener, removePropertyChangeListener, repaint, repaint, repaint, requestFocus, requestFocus, requestFocusInWindow, requestFocusInWindow, resize, resize, setBackground, setComponentOrientation, setDropTarget, setEnabled, setFocusable, setFocusTraversalKeysEnabled, setForeground, setIgnoreRepaint, setLocale, setLocation, setLocation, setMaximumSize, setName, setPreferredSize, show, size, toString, transferFocus, transferFocusUpCycle

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Methods inherited from interface java.awt.MenuContainer

getFont, postEvent

Field Detail

serialVersionUID

private static final long serialVersionUID

See Also:

Constant Field Values

scenarioConfig

private ScenarioConfig scenarioConfig

MEASUREMENTS_DIR

private static final java.lang.String MEASUREMENTS_DIR

NET1_MEASUREMENTS_PREFIX

private static final java.lang.String NET1_MEASUREMENTS_PREFIX

See Also:

Constant Field Values

NET2_MEASUREMENTS_PREFIX

private static final java.lang.String NET2_MEASUREMENTS_PREFIX

See Also:

Constant Field Values

SEMANTIC_MEASUREMENTS_PREFIX

private static final java.lang.String SEMANTIC_MEASUREMENTS_PREFIX

See Also:

Constant Field Values

VIDEOFILES_PREFIX

private static final java.lang.String VIDEOFILES_PREFIX

See Also:

Constant Field Values

MEASUREMENTS_FILE_EXT

private static final java.lang.String MEASUREMENTS_FILE_EXT

See Also:

Constant Field Values

DATE_FORMAT

final java.lang.String DATE_FORMAT

See Also:

Constant Field Values

MENU_TITLE_1

private static final java.lang.String MENU_TITLE_1

See Also:

Constant Field Values

MENU_SHOW_RESULTS

private static final java.lang.String MENU_SHOW_RESULTS

See Also:

Constant Field Values

MENU_LOAD_CONFIG

private static final java.lang.String MENU_LOAD_CONFIG

See Also:

Constant Field Values

MENU_SAVE_CONFIG

private static final java.lang.String MENU_SAVE_CONFIG

See Also:

Constant Field Values

MENU_CLOSE

private static final java.lang.String MENU_CLOSE

See Also:

Constant Field Values

map

private NodeEdgeMap map

needSave

private boolean needSave

isOpened

private boolean isOpened

titlePrefix

private static final java.lang.String titlePrefix

See Also:

Constant Field Values

simName

private java.lang.String simName

planetLabApi

private PlanetLabMgr planetLabApi

planetSh

private PlanetLabXmlRpcCaller planetSh

closeButton

private javax.swing.JButton closeButton

executeButton

private javax.swing.JButton executeButton

saveButton

private javax.swing.JButton saveButton

loadButton

private javax.swing.JButton loadButton

scenarioCombo

private javax.swing.JComboBox scenarioCombo

parentFrame

private javax.swing.JFrame parentFrame

groupColors

private static final java.awt.Color[] groupColors

colorIdx

private int colorIdx

Constructor Detail

Simulator

public Simulator(javax.swing.JFrame parent,
                 ScenarioConfig config,
                 NodeEdgeMap map,
                 PlanetLabMgr planetLabApi)

Creates and initializes a simulator object instance

Method Detail

initMenu

private void initMenu()

Adds the entries to the menu.

init

private void init(javax.swing.JFrame parent,
                  java.lang.String title)

initializes the window layout and its elements

Parameters:

parent - - the parent component

title - - window title

simulateNetworkCloseness1

private boolean simulateNetworkCloseness1()

Simulates the forming of proxy groups by just considering the network closeness. The semantic closeness has to be executed first, because the leaders of each group remain the same. All other nodes have to measure the network closeness to each existing leader. Each node joins the closest leader (It's the one with the highest measured bandwidth). The network closeness is calculated by each node using CORBA calls to PlanetLabClient.calculateNetCloseness().

Returns:

true if successful. If something failed or no save is needed (execution from results-file), false is returned.

simulateNetworkCloseness1Online

private boolean simulateNetworkCloseness1Online(java.util.Vector<X2XProxy> proxies,
                                                java.util.Vector<ProxyGroup> proxyGroups,
                                                java.util.Hashtable<X2XProxy,java.util.Vector<StructBandwidthInfoBean>> bwsPerNode)

Used for the formation of Network closeness v1 groups. This method gets the results by measuring the bandwidths online and forms the groups based upon these measurements.

Parameters:

proxies - - All proxies of the given scenario. Must not be null or empty.

proxyGroups - - This is an output parameter: It will contain the formed proxy groups from the bandwidth measurements.

bwsPerNode - - This is an output parameter: It will contain the bandwidth results

Returns:

true if successful

simulateNetworkCloseness1Offline

private boolean simulateNetworkCloseness1Offline(java.util.Vector<X2XProxy> proxies,
                                                 java.util.Vector<ProxyGroup> proxyGroups,
                                                 java.util.Hashtable<X2XProxy,java.util.Vector<StructBandwidthInfoBean>> bwsPerNode)

Used for the formation of Network closeness v1 groups. This method gets the already measured bandwidth results as a parameter and forms the groups based upon these measurements.

Parameters:

proxies - - All proxies of the given scenario. Must not be null or empty.

proxyGroups - - This is an output parameter: It will contain the formed proxy groups from the bandwidth measurements.

bwsPerNode - - This is an input parameter: It contains the bandwidth results

Returns:

true if successful

saveAssignedVideoFiles

private boolean saveAssignedVideoFiles(java.lang.String filePath)

Saves the video files config which is assigned to each proxy of the scenario to a file.

Parameters:

filePath -

Returns:

true if successful

loadAssignedVideoFiles

private boolean loadAssignedVideoFiles(java.lang.String filePath)

Loades the video files config which was assigned to each proxy of the scenario from a file. Assigns the loaded video files config to the current scenario proxies.

Parameters:

filePath -

Returns:

true if successful

evaluateNetClAvgGroupBandwidths

private java.util.Hashtable<ProxyGroup,java.lang.Double> evaluateNetClAvgGroupBandwidths(java.util.Vector<ProxyGroup> proxyGroups,
                                                                                         java.util.Hashtable<X2XProxy,java.util.Vector<StructBandwidthInfoBean>> bwsPerNode)

Evaluate average group bandwidths and print them to stdout 1. note that every proxy has more than one bandwidth-result --> choose maximum --> must be equal with group leader 2. The proxy groups must already have been set according to the bandwidth-results

Parameters:

proxyGroups -

bwsPerNode -

Returns:

Hashtable - the group average bandwidths

printProxiesAndGroups

private void printProxiesAndGroups(java.util.Vector<ProxyGroup> proxyGroups,
                                   java.util.Vector<X2XProxy> proxies)

Prints the proxy groups and the proxies to stdout.

Parameters:

proxyGroups - - The groups to print. If null, they will not be printed.

proxies - - The proxies to print. If null, they will not be printed.

measureAndCalcAvgBwsPerGroup

private boolean measureAndCalcAvgBwsPerGroup(boolean onlyToLeaders,
                                             boolean exceptLeaders,
                                             boolean saveResults,
                                             java.lang.String resultFilePath)

Measures and calculates the average bandwidths of each proxygroup in the scenario configuration and saves them to a file if neccessary. call is done via CORBA

Parameters:

onlyToLeaders - - if true, the bandwidths are measured from each non-leader node only to the leader of the group (O(n)) otherwise, the bandwidths are measured to each other node of the group (O(n²))

saveResults - - save the collected bandwidth results to a file?

resultFilePath - - The path to the file to save the results to

Returns:

true if successful

measureBwsPerGroup

private boolean measureBwsPerGroup(ProxyGroup group,
                                   boolean onlyToLeader,
                                   boolean exceptLeader,
                                   java.util.Hashtable<X2XProxy,java.util.Vector<StructBandwidthInfoBean>> bwsPerNode)

Measures the bandwidths betweeen the proxies of a group. call is done via CORBA

Parameters:

group - - Bandwidths will be measured for the proxies of the given group. Must not be null or empty.

onlyToLeader - - if true, the bandwidths are measured from each non-leader node only to the leader of the group (O(n)) otherwise, the bandwidths are measured to each other node of the group (O(n²))

exceptLeader - - if true the measurements to the leader of the group will be omitted

bwsPerNode - - The measurement results for each node in the group. Must not be null because the function will fill this variable with the bandwidth results.

Returns:

true if successful, bwsPerNode contain the bandwidth results

calculateAvgBandwidth

private double calculateAvgBandwidth(java.util.Vector<structBandwidthInfo> groupBandwidths)

Calculates the average Bandwidth of the given values.

Parameters:

groupBandwidths -

Returns:

the average bandwidth in bit/s

printGroupAvgBandwidths

private void printGroupAvgBandwidths(java.util.Hashtable<ProxyGroup,java.lang.Double> groupBws)

Parameters:

groupBws -

printGroupAvgBandwidths2

private void printGroupAvgBandwidths2(java.util.Vector<ProxyGroup> proxyGroups,
                                      java.util.Hashtable<java.lang.String,java.lang.Double> groupBws)

print out the calculated average group-bandwidths for each group

Parameters:

groupBws -

simulateNetworkCloseness2

private boolean simulateNetworkCloseness2()

For each proxygroup the bandwidths of all nodes to each other are calculated. Afterwards new sub-groups are formed based on the calculated bandwidths. call to calculate bandwidths is done via CORBA

Returns:

true if successful

evaluateNetworkCloseness2

private boolean evaluateNetworkCloseness2(java.lang.String groupNameFilter,
                                          java.util.Vector<ProxyGroup> semanticProxyGroups,
                                          java.util.Vector<ProxyGroup> netProxyGroups)

evaluate the net-closeness results (subgroups of semantic groups) using the request-logs generated through medisyn

Parameters:

groupNameFilter - - is used to filter a group by name and evaluate just the one group. If empty, all existing groups will be evaluated

semanticProxyGroups - - The proxy groups that where formed using semantic closeness

netProxyGroups - - The proxy groups that were formed using network closeness 2

Returns:

true if successful

parseAndAssignVideoFilesToGroup

private ResultParser parseAndAssignVideoFilesToGroup(ProxyGroup group,
                                                     boolean forceAssignment)

Creates the ResultParser for the given group which parses the required medisyn request log. Afterwards each proxy of the given group is assigned a nr of video files.

Parameters:

group -

Returns:

the created ResultParser

parseAndAssignVideoFilesToScenarioGroups

public boolean parseAndAssignVideoFilesToScenarioGroups()

Parses the medisyn request log of each proxy group of the scenario. Afterwards some nr of video files is assigned to each proxy.

Returns:

true if successful

evaluateNetworkCloseness1

private boolean evaluateNetworkCloseness1(java.util.Vector<ProxyGroup> semanticProxyGroups,
                                          java.util.Vector<ProxyGroup> netProxyGroups)

evaluate the net-closeness results (subgroups of semantic groups) using the request-logs generated through medisyn

Parameters:

semanticProxyGroups - - The proxy groups that where formed using semantic closeness

netProxyGroups - - The proxy groups that were formed using network closeness 2

Returns:

true if successful

createResultParserForGroup

private ResultParser createResultParserForGroup(ProxyGroup group)

creates the medisyn ResultParser and parses the medisyn-requests for the given group

Parameters:

group - - the group to create the parser for

examineRequestResults

private void examineRequestResults(java.util.Hashtable<Request,java.lang.Integer> requestResults)

Calculate statistics for requestResults and print them to sysout

Parameters:

requestResults -

requestVideosFromGroup

private boolean requestVideosFromGroup(java.util.Vector<Request> requests,
                                       int maxGroupSize,
                                       ProxyGroup group,
                                       java.util.Hashtable<Request,java.lang.Integer> requestResults)

Simulate some client requests for videos to the group and calculate the requestResults.

Parameters:

requests -

maxGroupSize - - the nr of requests will depend on the relation from the current group size to the maxGroupSize

group -

requestResults - - is the calculated output.

Returns:

true if successful

assignVideofilesToProxy

private boolean assignVideofilesToProxy(java.util.Hashtable<java.lang.Integer,VideoFile> videoFiles,
                                        X2XProxy proxy,
                                        int nrOfFilesForNode)

choose some video files that will belong to this node

Parameters:

videoFiles -

proxy -

nrOfFilesForNode -

Returns:

true if successful

assignVideofilesToGroup

private boolean assignVideofilesToGroup(java.util.Hashtable<java.lang.Integer,VideoFile> videoFiles,
                                        ProxyGroup group,
                                        double filesPerNodePercentage,
                                        double sigmaPercentage,
                                        boolean forceAssignment)

Assign some number of files to each node of this group.

Parameters:

videoFiles -

group -

filesPerNodePercentage - - Influences the nr of files a node will have. The value is calculated as a percentage form all available videoFiles. The result is taken as mean value. Sigma is the standard deviation. The final nr of files a node will have is calculated using the mean value and the std deviation from a random nr.

sigmaPercentage - - Influences the nr of files a node will have. The value represents the standard deviation. It must not be >= 1.0

Returns:

true if successful

chooseVideoFilesConfig

private java.lang.String chooseVideoFilesConfig()

Lets the user choose the saved video files config.

Returns:

the filePath

formBandwidthGroups

private boolean formBandwidthGroups(java.lang.String selectedGroup)

For each proxygroup the bandwidths of all nodes to each other are calculated. Afterwards new sub-groups are formed based on the calculated bandwidths. call to calculate bandwidths is done via CORBA

Returns:

true if successful

chooseResultFile

private java.lang.String chooseResultFile(boolean addPrefix,
                                          boolean addExtension,
                                          boolean useSimNameAsFilter,
                                          java.lang.String filePrefix)

Shows an InputDialog with all the result files in the Results-directory. User may choose a file.

Parameters:

addPrefix - - tells whether to prepend the MEASUREMENTS_DIR to the result.

addExtension - - tells whether to append the MEASUREMENTS_FILE_EXT to the result.

useSimNameAsFilter - - tells whether to show only files which belong to the currently loaded simName.

filePrefix - - Show only files which begin with this string, may be empty.

Returns:

null or empty string on cancel or error. Otherwise the filePath is returned.

calculateBandwidthsForGroup

private java.util.Vector<ProxyGroup> calculateBandwidthsForGroup(ProxyGroup group,
                                                                 java.lang.String resultFilePath,
                                                                 Simulator.SimExecMode execMode,
                                                                 java.util.Hashtable<java.lang.String,java.lang.Double> groupBws,
                                                                 Simulator.FormSubgroupsMode subgroupMode)
                                                          throws java.lang.Exception

Calculates the bandwidths in this group (by using PlabClientCaller) and forms subgroups by calculating netCloseness

Parameters:

group -

resultFilePath -

execMode -

groupBws -

Returns:

Vector - the subgrups

Throws:

java.lang.Exception

formBandwidthSubGroupsFromGroup

private java.util.Vector<ProxyGroup> formBandwidthSubGroupsFromGroup(ProxyGroup oldGroup,
                                                                     java.util.Hashtable<X2XProxy,java.util.Vector<structBandwidthInfo>> bwsPerNode)
                                                              throws java.lang.Exception

forms subgroups based on network bandwidth of ONE semantically formed proxy group

Parameters:

oldGroup -

bwsPerNode -

Returns:

Vector - the subgroups

Throws:

java.lang.Exception

formBandwidthSubGroupsFromGroupV2

private java.util.Vector<ProxyGroup> formBandwidthSubGroupsFromGroupV2(ProxyGroup oldGroup,
                                                                       java.util.Hashtable<X2XProxy,java.util.Vector<structBandwidthInfo>> bwsPerNode)
                                                                throws java.lang.Exception

forms subgroups based on network bandwidth of ONE semantically formed proxy group Changes to v1: (- single node groups are formed if the bandwidth-limit is reached) - Groups with a greater size are favoured - Additionally: if the nr of subgroups formed by Algorithm v2 is NOT smaller than the nr of subgroups formed by Algorithm v1, then the result of Algorithm v1 is taken because it has better avg-group-bandwidths.

Parameters:

oldGroup -

bwsPerNode -

Returns:

Vector - the subgroups

Throws:

java.lang.Exception

formBandwidthSubGroupsFromGroupV2Internal

private java.util.Vector<ProxyGroup> formBandwidthSubGroupsFromGroupV2Internal(ProxyGroup oldGroup,
                                                                               java.util.Hashtable<X2XProxy,java.util.Vector<structBandwidthInfo>> bwsPerNode)
                                                                        throws java.lang.Exception

forms subgroups based on network bandwidth of ONE semantically formed proxy group Changes to v1: (- single node groups are formed if the bandwidth-limit is reached) - Groups with a greater size are favoured

Parameters:

oldGroup -

bwsPerNode -

Returns:

Vector - the subgroups

Throws:

java.lang.Exception

saveBandwidthResults

private boolean saveBandwidthResults(java.lang.String resultFilePath,
                                     java.util.Hashtable<X2XProxy,java.util.Vector<StructBandwidthInfoBean>> bwsPerNode)

Save the bandwidth measurements to the resultFile, so they can be loaded for an offline run or for evaluation.

Parameters:

resultFilePath -

bwsPerNode -

loadBandwidthResults

private java.util.Hashtable<X2XProxy,java.util.Vector<StructBandwidthInfoBean>> loadBandwidthResults(java.lang.String resultFilePath,
                                                                                                     java.util.Vector<X2XProxy> currentProxies)

Load the bandwidth measurement results from the file and put them into the Hashtable.

Parameters:

resultFilePath -

currentProxies -

Returns:

the loaded bandwidth results

printResultHashtable

private void printResultHashtable(java.util.Hashtable<X2XProxy,java.util.Vector<StructBandwidthInfoBean>> resultsTable)

Print the contents of the resultsTable to stdout.

Parameters:

resultsTable -

getProxyGroupsFromResults

private java.util.Vector<ProxyGroup> getProxyGroupsFromResults(java.util.Hashtable<X2XProxy,java.util.Vector<StructBandwidthInfoBean>> resultsTable)

Get the proxy groups of the nodes using the results.

Parameters:

resultsTable -

showBandwidthResults

public void showBandwidthResults()

Let the user choose a result file. Load it and print the results to stdout. Show the results in a window.

calculateAvgGroupBw

private double calculateAvgGroupBw(ProxyGroup group,
                                   java.util.Hashtable<X2XProxy,java.util.Vector<structBandwidthInfo>> bwsPerNode,
                                   boolean printBestWorstStats)
                            throws java.lang.Exception

Calculates the average bandwidth of the ProxyGroup. The bandwidths have to be measured first and given as input to this function

Parameters:

group - - A group of proxies. We are calculating the average bandwidth of this group.

bwsPerNode - - The measured bandwidths between the proxies in this group.

printBestWorstStats - - Print the statistics about the best and worst bandwidth in the group to stdout?

Returns:

the average group bandwidth in bit/s

Throws:

java.lang.Exception

calculateAvgBwToNode

private double calculateAvgBwToNode(ProxyGroup group,
                                    java.util.Hashtable<X2XProxy,java.util.Vector<structBandwidthInfo>> bwsPerNode,
                                    X2XProxy refProxy,
                                    boolean printBestWorstStats)
                             throws java.lang.Exception

Calculates the average bandwidth of every node of the ProxyGroup to the given reference node. The bandwidths have to be measured first and given as input to this function

Parameters:

group - - A group of proxies. We are calculating the average bandwidth of this group.

bwsPerNode - - The measured bandwidths between the proxies in this group.

refProxy - - Each bandwidth measurement is only considered, if this proxy is the source or destination of the measurement.

printBestWorstStats - - Print the statistics about the best and worst bandwidth in the group to stdout?

Returns:

the average bandwidth in bit/s

Throws:

java.lang.Exception

simulateSemanticCloseness

private boolean simulateSemanticCloseness()

Simulates the forming of proxy groups by just considering the semantic closeness

simulateSemanticCloseness

public boolean simulateSemanticCloseness(boolean equalNrOfProxiesPerGroup)

Simulates the forming of proxy groups by just considering the semantic closeness

Parameters:

equalNrOfProxiesPerGroup - - if true, then generateProxies() will try to form groups with equal nr of nodes in each group, otherwise, the nodes will be assigned to groups straight ahead.

areVideoFilesAssigned

private boolean areVideoFilesAssigned(ProxyGroup group)

Checks whether the video files are assigned to each proxy of this group.

Parameters:

group - - The group to check

Returns:

true if the files are already assigned to the group

areVideoFilesAssigned

private boolean areVideoFilesAssigned()

Checks whether the video files are assigned to each proxy of this group.

Returns:

true if successful

simulateSemanticClosenessWithEval

private boolean simulateSemanticClosenessWithEval()

simulates the forming of proxy groups by just considering the semantic closeness

actionPerformed

public void actionPerformed(java.awt.event.ActionEvent evt)

Handles all the events that occur in the GUI.

Specified by:

actionPerformed in interface java.awt.event.ActionListener

Parameters:

evt - an ActionEvent

saveScenario

private void saveScenario()

save the configuration + the simulation results in file

loadScenario

private void loadScenario()

Load the scenario configuration from a file. The user is asked to select a scenario configuration file.

setPlanetLabApi

public void setPlanetLabApi(PlanetLabMgr planetLabApi)

Parameters:

planetLabApi - the planetLabApi to set

windowClosing

public void windowClosing(java.awt.event.WindowEvent e)

Specified by:

windowClosing in interface java.awt.event.WindowListener

windowClosed

public void windowClosed(java.awt.event.WindowEvent e)

Windowlistener interface implementation

Specified by:

windowClosed in interface java.awt.event.WindowListener

Parameters:

e -

windowOpened

public void windowOpened(java.awt.event.WindowEvent e)

Specified by:

windowOpened in interface java.awt.event.WindowListener

windowIconified

public void windowIconified(java.awt.event.WindowEvent e)

Specified by:

windowIconified in interface java.awt.event.WindowListener

windowDeiconified

public void windowDeiconified(java.awt.event.WindowEvent e)

Specified by:

windowDeiconified in interface java.awt.event.WindowListener

windowActivated

public void windowActivated(java.awt.event.WindowEvent e)

Specified by:

windowActivated in interface java.awt.event.WindowListener

windowDeactivated

public void windowDeactivated(java.awt.event.WindowEvent e)

Specified by:

windowDeactivated in interface java.awt.event.WindowListener

getNodeMgr

public ScenarioNodeMgr getNodeMgr()

Returns:

the nodeMgr

setNodeMgr

public void setNodeMgr(ScenarioNodeMgr nodeMgr)

Parameters:

nodeMgr - the nodes to set

getScenarioConfig

public ScenarioConfig getScenarioConfig()

Returns:

the scenarioConfig

setScenarioConfig

public void setScenarioConfig(ScenarioConfig scenarioConfig)

Parameters:

scenarioConfig - the scenarioConfig to set