/*******************************************************************************
* Copyright (c) 2000, 2010 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.ui.internal.console;
import java.util.ArrayList;
import java.util.HashSet;
import java.util.Iterator;
import java.util.List;
import java.util.Set;
import java.util.regex.PatternSyntaxException;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IConfigurationElement;
import org.eclipse.core.runtime.IExtensionPoint;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.core.runtime.ISafeRunnable;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.core.runtime.ListenerList;
import org.eclipse.core.runtime.Platform;
import org.eclipse.core.runtime.SafeRunner;
import org.eclipse.core.runtime.Status;
import org.eclipse.core.runtime.jobs.Job;
import org.eclipse.swt.widgets.Control;
import org.eclipse.ui.IViewPart;
import org.eclipse.ui.IWorkbenchPage;
import org.eclipse.ui.IWorkbenchWindow;
import org.eclipse.ui.PartInitException;
import org.eclipse.ui.PlatformUI;
import org.eclipse.ui.console.ConsolePlugin;
import org.eclipse.ui.console.IConsole;
import org.eclipse.ui.console.IConsoleConstants;
import org.eclipse.ui.console.IConsoleListener;
import org.eclipse.ui.console.IConsoleManager;
import org.eclipse.ui.console.IConsolePageParticipant;
import org.eclipse.ui.console.IConsoleView;
import org.eclipse.ui.console.IPatternMatchListener;
import org.eclipse.ui.console.TextConsole;
import org.eclipse.ui.progress.UIJob;
import org.eclipse.ui.progress.WorkbenchJob;
/**
* The singleton console manager.
*
* @since 3.0
*/
public class ConsoleManager implements IConsoleManager {
/**
* Console listeners
*/
private ListenerList fListeners = null;
/**
* List of registered consoles
*/
private List fConsoles = new ArrayList(10);
// change notification constants
private final static int ADDED = 1;
private final static int REMOVED = 2;
private List fPatternMatchListeners;
private List fPageParticipants;
private List fConsoleFactoryExtensions;
private List fConsoleViews = new ArrayList();
private boolean fWarnQueued = false;
private RepaintJob fRepaintJob = new RepaintJob();
private class RepaintJob extends WorkbenchJob {
private Set list = new HashSet();
public RepaintJob() {
super("schedule redraw() of viewers"); //$NON-NLS-1$
setSystem(true);
}
void addConsole(IConsole console) {
synchronized (list) {
list.add(console);
}
}
public IStatus runInUIThread(IProgressMonitor monitor) {
synchronized (list) {
if (list.isEmpty()) {
return Status.OK_STATUS;
}
IWorkbenchWindow[] workbenchWindows = PlatformUI.getWorkbench().getWorkbenchWindows();
for (int i = 0; i < workbenchWindows.length; i++) {
IWorkbenchWindow window = workbenchWindows[i];
if (window != null) {
IWorkbenchPage page = window.getActivePage();
if (page != null) {
IViewPart part = page.findView(IConsoleConstants.ID_CONSOLE_VIEW);
if (part != null && part instanceof IConsoleView) {
ConsoleView view = (ConsoleView) part;
if (list.contains(view.getConsole())) {
Control control = view.getCurrentPage().getControl();
if (!control.isDisposed()) {
control.redraw();
}
}
}
}
}
}
list.clear();
}
return Status.OK_STATUS;
}
}
/**
* Notifies a console listener of additions or removals
*/
class ConsoleNotifier implements ISafeRunnable {
private IConsoleListener fListener;
private int fType;
private IConsole[] fChanged;
/* (non-Javadoc)
* @see org.eclipse.core.runtime.ISafeRunnable#handleException(java.lang.Throwable)
*/
public void handleException(Throwable exception) {
IStatus status = new Status(IStatus.ERROR, ConsolePlugin.getUniqueIdentifier(), IConsoleConstants.INTERNAL_ERROR, ConsoleMessages.ConsoleManager_0, exception);
ConsolePlugin.log(status);
}
/* (non-Javadoc)
* @see org.eclipse.core.runtime.ISafeRunnable#run()
*/
public void run() throws Exception {
switch (fType) {
case ADDED:
fListener.consolesAdded(fChanged);
break;
case REMOVED:
fListener.consolesRemoved(fChanged);
break;
}
}
/**
* Notifies the given listener of the adds/removes
*
* @param consoles the consoles that changed
* @param update the type of change
*/
public void notify(IConsole[] consoles, int update) {
if (fListeners == null) {
return;
}
fChanged = consoles;
fType = update;
Object[] copiedListeners= fListeners.getListeners();
for (int i= 0; i < copiedListeners.length; i++) {
fListener = (IConsoleListener)copiedListeners[i];
SafeRunner.run(this);
}
fChanged = null;
fListener = null;
}
}
public void registerConsoleView(ConsoleView view) {
synchronized (fConsoleViews) {
fConsoleViews.add(view);
}
}
public void unregisterConsoleView(ConsoleView view) {
synchronized (fConsoleViews) {
fConsoleViews.remove(view);
}
}
/* (non-Javadoc)
* @see org.eclipse.ui.console.IConsoleManager#addConsoleListener(org.eclipse.ui.console.IConsoleListener)
*/
public void addConsoleListener(IConsoleListener listener) {
if (fListeners == null) {
fListeners = new ListenerList();
}
fListeners.add(listener);
}
/* (non-Javadoc)
* @see org.eclipse.ui.console.IConsoleManager#removeConsoleListener(org.eclipse.ui.console.IConsoleListener)
*/
public void removeConsoleListener(IConsoleListener listener) {
if (fListeners != null) {
fListeners.remove(listener);
}
}
/* (non-Javadoc)
* @see org.eclipse.ui.console.IConsoleManager#addConsoles(org.eclipse.ui.console.IConsole[])
*/
public void addConsoles(IConsole[] consoles) {
List added = new ArrayList(consoles.length);
synchronized (fConsoles) {
for (int i = 0; i < consoles.length; i++) {
IConsole console = consoles[i];
if(console instanceof TextConsole) {
TextConsole ioconsole = (TextConsole)console;
createPatternMatchListeners(ioconsole);
}
if (!fConsoles.contains(console)) {
fConsoles.add(console);
added.add(console);
}
}
}
if (!added.isEmpty()) {
fireUpdate((IConsole[])added.toArray(new IConsole[added.size()]), ADDED);
}
}
/* (non-Javadoc)
* @see org.eclipse.ui.console.IConsoleManager#removeConsoles(org.eclipse.ui.console.IConsole[])
*/
public void removeConsoles(IConsole[] consoles) {
List removed = new ArrayList(consoles.length);
synchronized (fConsoles) {
for (int i = 0; i < consoles.length; i++) {
IConsole console = consoles[i];
if (fConsoles.remove(console)) {
removed.add(console);
}
}
}
if (!removed.isEmpty()) {
fireUpdate((IConsole[])removed.toArray(new IConsole[removed.size()]), REMOVED);
}
}
/* (non-Javadoc)
* @see org.eclipse.ui.console.IConsoleManager#getConsoles()
*/
public IConsole[] getConsoles() {
synchronized (fConsoles) {
return (IConsole[])fConsoles.toArray(new IConsole[fConsoles.size()]);
}
}
/**
* Fires notification.
*
* @param consoles consoles added/removed
* @param type ADD or REMOVE
*/
private void fireUpdate(IConsole[] consoles, int type) {
new ConsoleNotifier().notify(consoles, type);
}
private class ShowConsoleViewJob extends WorkbenchJob {
private IConsole console;
ShowConsoleViewJob() {
super("Show Console View"); //$NON-NLS-1$
setSystem(true);
setPriority(Job.SHORT);
}
void setConsole(IConsole console) {
this.console = console;
}
public IStatus runInUIThread(IProgressMonitor monitor) {
boolean consoleFound = false;
IWorkbenchWindow window= PlatformUI.getWorkbench().getActiveWorkbenchWindow();
if (window != null && console != null) {
IWorkbenchPage page= window.getActivePage();
if (page != null) {
synchronized (fConsoleViews) {
for (Iterator iter = fConsoleViews.iterator(); iter.hasNext();) {
ConsoleView consoleView = (ConsoleView) iter.next();
if (consoleView.getSite().getPage().equals(page)) {
boolean consoleVisible = page.isPartVisible(consoleView);
if (consoleVisible) {
consoleFound = true;
boolean bringToTop = shouldBringToTop(console, consoleView);
if (bringToTop) {
page.bringToTop(consoleView);
}
consoleView.display(console);
}
}
}
}
if (!consoleFound) {
try {
IConsoleView consoleView = (IConsoleView) page.showView(IConsoleConstants.ID_CONSOLE_VIEW, null, IWorkbenchPage.VIEW_CREATE);
boolean bringToTop = shouldBringToTop(console, consoleView);
if (bringToTop) {
page.bringToTop(consoleView);
}
consoleView.display(console);
} catch (PartInitException pie) {
ConsolePlugin.log(pie);
}
}
}
}
console = null;
return Status.OK_STATUS;
}
}
private ShowConsoleViewJob showJob = new ShowConsoleViewJob();
/**
* @see IConsoleManager#showConsoleView(IConsole)
*/
public void showConsoleView(final IConsole console) {
showJob.setConsole(console);
showJob.schedule(100);
}
/**
* Returns whether the given console view should be brought to the top.
* The view should not be brought to the top if the view is pinned on
* a console other than the given console.
*/
private boolean shouldBringToTop(IConsole console, IViewPart consoleView) {
boolean bringToTop= true;
if (consoleView instanceof IConsoleView) {
IConsoleView cView= (IConsoleView)consoleView;
if (cView.isPinned()) {
IConsole pinnedConsole= cView.getConsole();
bringToTop = console.equals(pinnedConsole);
}
}
return bringToTop;
}
/* (non-Javadoc)
* @see org.eclipse.ui.console.IConsoleManager#warnOfContentChange(org.eclipse.ui.console.IConsole)
*/
public void warnOfContentChange(final IConsole console) {
if (!fWarnQueued) {
fWarnQueued = true;
Job job = new UIJob(ConsolePlugin.getStandardDisplay(), ConsoleMessages.ConsoleManager_consoleContentChangeJob) {
public IStatus runInUIThread(IProgressMonitor monitor) {
IWorkbenchWindow window= PlatformUI.getWorkbench().getActiveWorkbenchWindow();
if (window != null) {
IWorkbenchPage page= window.getActivePage();
if (page != null) {
IConsoleView consoleView= (IConsoleView)page.findView(IConsoleConstants.ID_CONSOLE_VIEW);
if (consoleView != null) {
consoleView.warnOfContentChange(console);
}
}
}
fWarnQueued = false;
return Status.OK_STATUS;
}
};
job.setSystem(true);
job.schedule();
}
}
/* (non-Javadoc)
* @see org.eclipse.ui.console.IConsoleManager#getPatternMatchListenerDelegates(org.eclipse.ui.console.IConsole)
*/
public IPatternMatchListener[] createPatternMatchListeners(IConsole console) {
if (fPatternMatchListeners == null) {
fPatternMatchListeners = new ArrayList();
IExtensionPoint extensionPoint= Platform.getExtensionRegistry().getExtensionPoint(ConsolePlugin.getUniqueIdentifier(), IConsoleConstants.EXTENSION_POINT_CONSOLE_PATTERN_MATCH_LISTENERS);
IConfigurationElement[] elements = extensionPoint.getConfigurationElements();
for (int i = 0; i < elements.length; i++) {
IConfigurationElement config = elements[i];
PatternMatchListenerExtension extension = new PatternMatchListenerExtension(config);
fPatternMatchListeners.add(extension);
}
}
ArrayList list = new ArrayList();
for(Iterator i = fPatternMatchListeners.iterator(); i.hasNext(); ) {
PatternMatchListenerExtension extension = (PatternMatchListenerExtension) i.next();
try {
if (extension.getEnablementExpression() == null) {
i.remove();
continue;
}
if (console instanceof TextConsole && extension.isEnabledFor(console)) {
TextConsole textConsole = (TextConsole) console;
PatternMatchListener patternMatchListener = new PatternMatchListener(extension);
try {
textConsole.addPatternMatchListener(patternMatchListener);
list.add(patternMatchListener);
} catch (PatternSyntaxException e) {
ConsolePlugin.log(e);
i.remove();
}
}
} catch (CoreException e) {
ConsolePlugin.log(e);
}
}
return (PatternMatchListener[])list.toArray(new PatternMatchListener[0]);
}
/* (non-Javadoc)
* @see org.eclipse.ui.console.IConsoleManager#getPageParticipants(org.eclipse.ui.console.IConsole)
*/
public IConsolePageParticipant[] getPageParticipants(IConsole console) {
if(fPageParticipants == null) {
fPageParticipants = new ArrayList();
IExtensionPoint extensionPoint = Platform.getExtensionRegistry().getExtensionPoint(ConsolePlugin.getUniqueIdentifier(), IConsoleConstants.EXTENSION_POINT_CONSOLE_PAGE_PARTICIPANTS);
IConfigurationElement[] elements = extensionPoint.getConfigurationElements();
for(int i = 0; i < elements.length; i++) {
IConfigurationElement config = elements[i];
ConsolePageParticipantExtension extension = new ConsolePageParticipantExtension(config);
fPageParticipants.add(extension);
}
}
ArrayList list = new ArrayList();
for(Iterator i = fPageParticipants.iterator(); i.hasNext(); ) {
ConsolePageParticipantExtension extension = (ConsolePageParticipantExtension) i.next();
try {
if (extension.isEnabledFor(console)) {
list.add(extension.createDelegate());
}
} catch (CoreException e) {
ConsolePlugin.log(e);
}
}
return (IConsolePageParticipant[]) list.toArray(new IConsolePageParticipant[0]);
}
/* (non-Javadoc)
* @see org.eclipse.ui.console.IConsoleManager#getConsoleFactories()
*/
public ConsoleFactoryExtension[] getConsoleFactoryExtensions() {
if (fConsoleFactoryExtensions == null) {
fConsoleFactoryExtensions = new ArrayList();
IExtensionPoint extensionPoint = Platform.getExtensionRegistry().getExtensionPoint(ConsolePlugin.getUniqueIdentifier(), IConsoleConstants.EXTENSION_POINT_CONSOLE_FACTORIES);
IConfigurationElement[] configurationElements = extensionPoint.getConfigurationElements();
for (int i = 0; i < configurationElements.length; i++) {
fConsoleFactoryExtensions.add(new ConsoleFactoryExtension(configurationElements[i]));
}
}
return (ConsoleFactoryExtension[]) fConsoleFactoryExtensions.toArray(new ConsoleFactoryExtension[0]);
}
public void refresh(final IConsole console) {
fRepaintJob.addConsole(console);
fRepaintJob.schedule(50);
}
}