Java tutorial
/******************************************************************************* * Copyright (c) 2003, 2013 IBM Corporation and others. * All rights reserved. This program and the accompanying materials * are made available under the terms of the Eclipse Public License v1.0 * which accompanies this distribution, and is available at * http://www.eclipse.org/legal/epl-v10.html * * Contributors: * IBM Corporation - Initial API and implementation *******************************************************************************/ package org.eclipse.wst.ide.remote.ui.internal.view; import java.io.IOException; import java.text.SimpleDateFormat; //import java.util.Iterator; import java.util.List; import org.eclipse.core.runtime.CoreException; import org.eclipse.jface.action.Action; import org.eclipse.jface.action.GroupMarker; import org.eclipse.jface.action.IAction; import org.eclipse.jface.action.IMenuListener; import org.eclipse.jface.action.IMenuManager; import org.eclipse.jface.action.IToolBarManager; import org.eclipse.jface.action.MenuManager; import org.eclipse.jface.action.Separator; //import org.eclipse.jface.dialogs.MessageDialog; import org.eclipse.jface.preference.IPreferenceNode; import org.eclipse.jface.preference.PreferenceDialog; import org.eclipse.jface.preference.PreferenceManager; import org.eclipse.jface.viewers.ISelection; import org.eclipse.jface.viewers.ISelectionChangedListener; import org.eclipse.jface.viewers.IStructuredSelection; import org.eclipse.jface.viewers.SelectionChangedEvent; import org.eclipse.jface.viewers.StructuredSelection; import org.eclipse.jface.viewers.TableViewer; import org.eclipse.jface.viewers.TreeViewer; import org.eclipse.jface.window.Window; import org.eclipse.osgi.util.NLS; import org.eclipse.swt.SWT; import org.eclipse.swt.custom.BusyIndicator; import org.eclipse.swt.custom.SashForm; import org.eclipse.swt.events.SelectionAdapter; import org.eclipse.swt.events.SelectionEvent; //import org.eclipse.swt.events.SelectionEvent; //import org.eclipse.swt.events.SelectionListener; import org.eclipse.swt.layout.GridData; import org.eclipse.swt.layout.GridLayout; import org.eclipse.swt.widgets.Button; //import org.eclipse.swt.widgets.Combo; import org.eclipse.swt.widgets.Composite; import org.eclipse.swt.widgets.Display; //import org.eclipse.swt.widgets.Label; import org.eclipse.swt.widgets.Menu; import org.eclipse.swt.widgets.Tree; import org.eclipse.ui.IViewPart; import org.eclipse.ui.IWorkbench; import org.eclipse.ui.IWorkbenchActionConstants; import org.eclipse.ui.IWorkbenchPage; import org.eclipse.ui.IWorkbenchWindow; import org.eclipse.ui.PlatformUI; import org.eclipse.ui.part.ViewPart; import org.eclipse.wst.ide.remote.core.internal.IContentFilter; import org.eclipse.wst.ide.remote.core.internal.MonitorPlugin; import org.eclipse.wst.ide.remote.core.internal.http.ResendHTTPRequest; import org.eclipse.wst.ide.remote.core.internal.provisional.IMonitor; import org.eclipse.wst.ide.remote.core.internal.provisional.IRequestListener; import org.eclipse.wst.ide.remote.core.internal.provisional.MonitorCore; import org.eclipse.wst.ide.remote.core.internal.provisional.Request; import org.eclipse.wst.ide.remote.core.internal.provisional.Response; import org.eclipse.wst.ide.remote.ui.internal.ContextIds; import org.eclipse.wst.ide.remote.ui.internal.Messages; import org.eclipse.wst.ide.remote.ui.internal.MonitorPreferencePage; import org.eclipse.wst.ide.remote.ui.internal.MonitorUIPlugin; import org.eclipse.wst.ide.remote.ui.internal.SWTUtil; import org.eclipse.wst.ide.remote.ui.internal.Trace; /** * View of TCP/IP activity. */ public class MonitorView extends ViewPart { protected Tree tree; protected TreeViewer treeViewer; protected TableViewer tableViewer; protected MonitorTreeContentProvider contentProvider; protected IRequestListener listener; protected ViewerManager vm; protected List requestViewers; protected List responseViewers; protected static SimpleDateFormat format; protected static final String VIEW_ID = "org.eclipse.wst.ide.remote.view"; protected static final String DEFAULT_VIEWER = "org.eclipse.wst.ide.remote.viewers.byte"; protected IAction httpHeaderAction; protected IAction preferenceAction; public static Button start; public static Button stop; public static MonitorView view; protected Request currentRequest = null; protected StructuredSelection currentSelection = null; /** * MonitorView constructor comment. */ public MonitorView() { super(); view = this; tableViewer = MonitorPreferencePage.tableViewer; // try specified format, and fall back to standard format try { format = new SimpleDateFormat(Messages.viewDateFormat); } catch (Exception e) { format = new SimpleDateFormat("h:mm.s.S a"); } } public void doRequestAdded(final Request rr) { Display.getDefault().asyncExec(new Runnable() { public void run() { if (!(rr instanceof ResendHTTPRequest)) { String s = rr.getName(); try { Response.respond(s); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } treeViewer.refresh(MonitorTreeContentProvider.ROOT); if (!MonitorUIPlugin.getPinViewPreference()) treeViewer.setSelection(new StructuredSelection(rr), true); } } }); } public void doRequestChanged(final Request rr) { Display.getDefault().asyncExec(new Runnable() { public void run() { if (treeViewer == null) return; IStructuredSelection sel = (IStructuredSelection) treeViewer.getSelection(); treeViewer.refresh(rr); if (!sel.isEmpty()) treeViewer.setSelection(sel); } }); } /** * Clear the view. */ protected void clear() { Display.getDefault().asyncExec(new Runnable() { public void run() { treeViewer.setSelection(null); treeViewer.setInput(MonitorTreeContentProvider.ROOT); } }); } protected void setSelection(Request request) { if (treeViewer != null) treeViewer.setSelection(new StructuredSelection(request)); } /** * @see org.eclipse.ui.part.WorkbenchPart#createPartControl(org.eclipse.swt.widgets.Composite) */ public void createPartControl(Composite parent) { SashForm sashFparent = new SashForm(parent, SWT.VERTICAL); sashFparent.setBackground(sashFparent.getDisplay().getSystemColor(SWT.COLOR_LIST_BACKGROUND)); GridLayout layout = new GridLayout(); layout.numColumns = 2; layout.horizontalSpacing = 4; layout.verticalSpacing = 4; sashFparent.setLayout(layout); sashFparent.setLayoutData(new GridData(GridData.FILL_BOTH)); PlatformUI.getWorkbench().getHelpSystem().setHelp(sashFparent, ContextIds.VIEW); // create tree panel Composite treePanel = new Composite(sashFparent, SWT.NONE); layout = new GridLayout(); layout.numColumns = 2; layout.marginHeight = 0; layout.marginWidth = 0; treePanel.setLayout(layout); GridData data = new GridData(GridData.FILL_HORIZONTAL | GridData.VERTICAL_ALIGN_BEGINNING); data.heightHint = 110; data.horizontalSpan = 2; treePanel.setLayoutData(data); tree = new Tree(treePanel, SWT.BORDER | SWT.V_SCROLL | SWT.H_SCROLL | SWT.SINGLE); data = new GridData(GridData.FILL_BOTH); //data.widthHint = 120; tree.setLayoutData(data); treeViewer = new TreeViewer(tree); contentProvider = new MonitorTreeContentProvider(); treeViewer.setContentProvider(contentProvider); treeViewer.setInput(MonitorTreeContentProvider.ROOT); treeViewer.setLabelProvider(new TreeLabelProvider()); PlatformUI.getWorkbench().getHelpSystem().setHelp(tree, ContextIds.VIEW_TREE); Composite buttonsPanel = new Composite(treePanel, SWT.NONE); layout = new GridLayout(); layout.numColumns = 1; layout.marginHeight = 0; layout.marginWidth = 0; buttonsPanel.setLayout(layout); data = new GridData(GridData.HORIZONTAL_ALIGN_FILL | GridData.VERTICAL_ALIGN_FILL); data.widthHint = 350; buttonsPanel.setLayoutData(data); start = SWTUtil.createButton(buttonsPanel, Messages.start); stop = SWTUtil.createButton(buttonsPanel, Messages.stop); stop.setEnabled(false); data = (GridData) start.getLayoutData(); data.verticalIndent = 9; start.addSelectionListener(new SelectionAdapter() { public void widgetSelected(SelectionEvent e) { IMonitor[] monitors = MonitorCore.getMonitors(); try { monitors[0].start(); } catch (CoreException ce) { } catch (Exception ce) { } if (monitors[0].isRunning()) { start.setEnabled(false); stop.setEnabled(true); } tableViewer.setSelection(tableViewer.getSelection()); } }); stop.addSelectionListener(new SelectionAdapter() { public void widgetSelected(SelectionEvent e) { IMonitor[] monitors = MonitorCore.getMonitors(); try { monitors[0].stop(); } catch (Exception ex) { // ignore } if (!monitors[0].isRunning()) { start.setEnabled(true); stop.setEnabled(false); } tableViewer.setSelection(tableViewer.getSelection()); } }); final Button properties = SWTUtil.createButton(buttonsPanel, Messages.actionProperties); properties.addSelectionListener(new SelectionAdapter() { public void widgetSelected(SelectionEvent e) { showPreferencePage(); } }); // create center and right panels SashForm sashFchild = new SashForm(sashFparent, SWT.HORIZONTAL); layout = new GridLayout(); layout.numColumns = 2; layout.horizontalSpacing = 2; layout.verticalSpacing = 4; sashFchild.setLayout(layout); sashFparent.setWeights(new int[] { 30, 70 }); // request panel Composite request = new Composite(sashFchild, SWT.NONE); layout = new GridLayout(); layout.marginHeight = 0; layout.marginWidth = 0; request.setLayout(layout); request.setLayoutData(new GridData(GridData.FILL_BOTH)); Composite requestHeader = new Composite(request, SWT.NONE); layout = new GridLayout(); layout.verticalSpacing = 1; layout.numColumns = 2; layout.marginHeight = 0; layout.marginWidth = 0; layout.marginLeft = 0; data = new GridData(GridData.FILL_HORIZONTAL | GridData.VERTICAL_ALIGN_BEGINNING); requestHeader.setLayout(layout); requestHeader.setLayoutData(data); // response panel Composite response = new Composite(sashFchild, SWT.NONE); layout = new GridLayout(); layout.verticalSpacing = 3; layout.marginHeight = 0; layout.marginWidth = 0; response.setLayout(layout); response.setLayoutData(new GridData(GridData.FILL_BOTH)); Composite responseHeader = new Composite(response, SWT.NONE); layout = new GridLayout(); layout.verticalSpacing = 1; layout.numColumns = 2; layout.marginHeight = 0; layout.marginWidth = 0; layout.marginLeft = 0; data = new GridData(GridData.FILL_HORIZONTAL | GridData.VERTICAL_ALIGN_BEGINNING); responseHeader.setLayout(layout); responseHeader.setLayoutData(data); // viewer manager vm = new ViewerManager(request, response); requestViewers = vm.getRequestViewers(); responseViewers = vm.getResponseViewers(); // selection listener treeViewer.addSelectionChangedListener(new ISelectionChangedListener() { public void selectionChanged(SelectionChangedEvent event) { ISelection selection = event.getSelection(); currentRequest = null; if (selection != null && !selection.isEmpty()) { StructuredSelection sel = (StructuredSelection) selection; currentSelection = sel; Object obj = sel.iterator().next(); if (obj instanceof Request) currentRequest = (Request) obj; } if (currentRequest != null) { vm.setRequest(currentRequest); Viewer viewer = vm.findViewer((String) currentRequest.getProperty("request-viewer")); if (viewer == null) viewer = vm.findViewer(DEFAULT_VIEWER); if (viewer != null) { } viewer = vm.findViewer((String) currentRequest.getProperty("response-viewer")); if (viewer == null && currentRequest.getName() != null) viewer = vm.getDefaultViewer(currentRequest.getName()); if (viewer != null) { vm.setResponseViewer(viewer); } } else { vm.setRequest(currentRequest); } } }); treeViewer.expandToLevel(2); // create a menu manager for a context menu MenuManager menuManager = new MenuManager(); menuManager.setRemoveAllWhenShown(true); menuManager.addMenuListener(new IMenuListener() { public void menuAboutToShow(IMenuManager menu) { menu.add(new GroupMarker(IWorkbenchActionConstants.MB_ADDITIONS)); menu.add(preferenceAction); } }); // create the menu Menu menu = menuManager.createContextMenu(treeViewer.getControl()); treeViewer.getControl().setMenu(menu); // register the menu with the platform getSite().registerContextMenu(menuManager, treeViewer); initializeActions(); } protected String getSizeString(byte[] a, byte[] b) { String aa = "0"; String bb = "0"; if (a != null) aa = a.length + ""; if (b != null) bb = b.length + ""; String size = NLS.bind(Messages.viewSizeFormat, new Object[] { aa, bb }); return NLS.bind(Messages.viewSize, size); } public void dispose() { super.dispose(); treeViewer = null; view = null; } /** * Initialize the tool-bar and menu actions. */ public void initializeActions() { final IAction pinAction = new Action() { public void run() { Display.getDefault().asyncExec(new Runnable() { public void run() { boolean pin = MonitorUIPlugin.getPinViewPreference(); MonitorUIPlugin.setPinViewPreference(!pin); } }); } }; pinAction.setChecked(false); pinAction.setToolTipText(Messages.actionPin); pinAction.setImageDescriptor(MonitorUIPlugin.getImageDescriptor(MonitorUIPlugin.IMG_ELCL_PIN)); pinAction.setHoverImageDescriptor(MonitorUIPlugin.getImageDescriptor(MonitorUIPlugin.IMG_CLCL_PIN)); pinAction.setDisabledImageDescriptor(MonitorUIPlugin.getImageDescriptor(MonitorUIPlugin.IMG_DLCL_PIN)); final IAction sortByResponseTimeAction = new Action() { public void run() { Display.getDefault().asyncExec(new Runnable() { public void run() { if (treeViewer.getComparator() == null) { setChecked(true); treeViewer.setComparator(new RequestComparator()); } else { setChecked(false); treeViewer.setComparator(null); } } }); } }; sortByResponseTimeAction.setChecked(false); sortByResponseTimeAction.setToolTipText(Messages.actionSortByResponseTime); sortByResponseTimeAction.setImageDescriptor( MonitorUIPlugin.getImageDescriptor(MonitorUIPlugin.IMG_ELCL_SORT_RESPONSE_TIME)); sortByResponseTimeAction.setHoverImageDescriptor( MonitorUIPlugin.getImageDescriptor(MonitorUIPlugin.IMG_CLCL_SORT_RESPONSE_TIME)); sortByResponseTimeAction.setDisabledImageDescriptor( MonitorUIPlugin.getImageDescriptor(MonitorUIPlugin.IMG_DLCL_SORT_RESPONSE_TIME)); IAction clearAction = new Action() { public void run() { MonitorUIPlugin.getInstance().clearRequests(); clear(); vm.getCurrentResponseViewer().clear(); } }; clearAction.setToolTipText(Messages.actionClearToolTip); clearAction.setImageDescriptor(MonitorUIPlugin.getImageDescriptor(MonitorUIPlugin.IMG_ELCL_CLEAR)); clearAction.setHoverImageDescriptor(MonitorUIPlugin.getImageDescriptor(MonitorUIPlugin.IMG_CLCL_CLEAR)); clearAction.setDisabledImageDescriptor(MonitorUIPlugin.getImageDescriptor(MonitorUIPlugin.IMG_DLCL_CLEAR)); httpHeaderAction = new Action() { public void run() { Display.getDefault().asyncExec(new Runnable() { public void run() { boolean b = vm.getDisplayHeaderInfo(); vm.setDisplayHeaderInfo(!b); setChecked(!b); } }); } }; httpHeaderAction.setChecked(vm.getDisplayHeaderInfo()); httpHeaderAction.setText(Messages.actionShowHeader); IToolBarManager tbm = getViewSite().getActionBars().getToolBarManager(); tbm.add(sortByResponseTimeAction); tbm.add(clearAction); tbm.add(pinAction); IContentFilter[] filters = MonitorPlugin.getInstance().getContentFilters(); IMenuManager menuManager = getViewSite().getActionBars().getMenuManager(); menuManager.add(httpHeaderAction); for (IContentFilter cf : filters) { FilterAction action = new FilterAction(vm, cf); menuManager.add(action); } menuManager.add(new Separator()); } protected boolean showPreferencePage() { PreferenceManager manager = PlatformUI.getWorkbench().getPreferenceManager(); IPreferenceNode node = manager.find("org.eclipse.debug.ui.DebugPreferencePage") .findSubNode("org.eclipse.wst.ide.remote.preferencePage"); PreferenceManager manager2 = new PreferenceManager(); manager2.addToRoot(node); final PreferenceDialog dialog = new PreferenceDialog(getSite().getShell(), manager2); final boolean[] result = new boolean[] { false }; BusyIndicator.showWhile(getSite().getShell().getDisplay(), new Runnable() { public void run() { dialog.create(); if (dialog.open() == Window.OK) result[0] = true; } }); return result[0]; } /** * Open a request. * * @param request the request */ public static void open(final Request request) { Display.getDefault().asyncExec(new Runnable() { public void run() { try { IWorkbench workbench = MonitorUIPlugin.getInstance().getWorkbench(); IWorkbenchWindow workbenchWindow = workbench.getActiveWorkbenchWindow(); IWorkbenchPage page = workbenchWindow.getActivePage(); IViewPart view2 = page.findView(VIEW_ID); if (view2 != null) page.bringToTop(view2); else page.showView(VIEW_ID); if (view != null && !MonitorUIPlugin.getPinViewPreference()) view.setSelection(request); } catch (Exception e) { if (Trace.SEVERE) { Trace.trace(Trace.STRING_SEVERE, "Error opening TCP/IP view", e); } } } }); } /** * */ public void setFocus() { if (tree != null) tree.setFocus(); } }