org.eclipse.ui.console.MessageConsole#newMessageStream ( )源码实例Demo

@Override
public OutputStream getOutputStream(final OutputStreamType type, OutputRedirection redirect) {
	if (!PlatformUI.isWorkbenchRunning()) {
		return DEFAULT.getOutputStream(type, redirect);
	}
	final MessageConsole console = consoleSupplier.get();
	boolean silent = redirect == OutputRedirection.SUPPRESS;
	if (!silent) {
		console.activate();
	}
	ConsolePlugin.getDefault().getConsoleManager().addConsoles(new IConsole[] { console });
	final MessageConsoleStream stream = console.newMessageStream();
	getDisplay().asyncExec(() -> {
		stream.setColor(toColor(type));
		showConsoleView(silent);
	});
	return stream;
}
 

public ConsoleContext ( final MessageConsole messageConsole )
{
    this.writerStream = messageConsole.newMessageStream ();

    final MessageConsoleStream errorStream = messageConsole.newMessageStream ();
    errorStream.setColor ( Display.getDefault ().getSystemColor ( SWT.COLOR_RED ) );
    this.errorPrintWriter = new PrintWriter ( new OutputStreamWriter ( errorStream ) );

    this.logStream = messageConsole.newMessageStream ();
    this.logStream.setColor ( Display.getDefault ().getSystemColor ( SWT.COLOR_GRAY ) );
}
 

@Override
public CommandConsole get(String name, String title) throws IOException {
  MessageConsole console = findConsole(name);
  MessageConsoleStream stream = console.newMessageStream();
  stream.setActivateOnWrite(true);
  stream.write("*** " + title + " ***\n");
  return new CommandConsoleImpl(console);
}
 

@VisibleForTesting
MessageConsoleStream createNewMessageConsole() {
  MessageConsole console = MessageConsoleUtilities.getMessageConsole(
      Messages.getString("configuring.cloud.sdk"), // $NON-NLS-1$
      null /* imageDescriptor */);

  setProperty(IProgressConstants.ACTION_PROPERTY, new ShowConsoleViewAction(console));

  return console.newMessageStream();
}
 

private PrintStream getConsolePrintStream() {
	final MessageConsole console = EclipseUtils.getOrCreateConsole("Resource Loading Statistics", true, true);
	final PrintStream out = new PrintStream(console.newMessageStream());
	return out;
}
 

public DockerClientMessageConsole(String name) {
            ConsolePlugin plugin = ConsolePlugin.getDefault();
            IConsoleManager conMan = plugin.getConsoleManager();
            IConsole[] existing = conMan.getConsoles();
            for (int i = 0; i < existing.length; i++) {
                if (name.equals(existing[i].getName())) {
                    dockerMessageConsole = (MessageConsole) existing[i];
                    dockerConsoleOut = dockerMessageConsole.newMessageStream();
                    return;
                }
            }
            
            // no console found, so create a new one
            Bundle bundle = Platform.getBundle("com.zenika.doclipser.api");
            ImageDescriptor imageDcr = ImageDescriptor.createFromURL(
                  FileLocator.find(bundle,
                                   new Path("icons/docker-solo.gif"),
                                            null));
            MessageConsole dockerConsole = new MessageConsole(name, imageDcr);
            conMan.addConsoles(new IConsole[] { dockerConsole });
            
            dockerMessageConsole = dockerConsole;
            dockerConsoleOut = dockerMessageConsole.newMessageStream();

//          Currently does not work: win is always null 
//          (I guess because we are not in the main UI Thread)
//          
//          // get current active page
//          IWorkbench wb = PlatformUI.getWorkbench();
//          IWorkbenchWindow win = wb.getActiveWorkbenchWindow();
//          
//          // on new versions it may need to be changed to:
//          IWorkbenchPage page = win.getActivePage();
//
//          // Reveal the console view
//          String id = IConsoleConstants.ID_CONSOLE_VIEW;
//          IConsoleView view;
//          try {
//              view = (IConsoleView) page.showView(id);
//              view.display(dockerConsole);
//          } catch (PartInitException e) {
//              // TODO Auto-generated catch block
//              e.printStackTrace();
//          }
        }
 

/**
 * Returns the path to the gwt-dev-xxx.jar in the event that the launch configuration depends on a
 * GWT Contributor Runtime. Otherwise, returns the empty string.
 */
private static String maybeGetDevJarPath(IJavaProject project) {

  /*
   * In order to figure out whether or not to add the -Dgwt.devjar argument to the list of VM
   * args, we have to figure out the runtime that this launch configuration depends on. If the
   * project is one of the GWT Runtime projects, then we'll definitely have to add the
   * -Dgwt.devjar argument to the launch configuration.
   */
  try {
    if (GWTProjectsRuntime.isGWTRuntimeProject(project)) {
      // Synthesize a temporary contributor SDK so that we can use it
      // to compute the devjar path
      GwtSdk tempContribSDK = GWTProjectsRuntime.syntheziseContributorRuntime();

      if (tempContribSDK.validate().isOK()) {
        return tempContribSDK.getDevJar().getAbsolutePath();
      } else {
        return "";
      }
    }

    GwtSdk sdk = GwtSdk.findSdkFor(project);
    if (sdk == null) {
      MessageConsole messageConsole =
          MessageConsoleUtilities.getMessageConsole(project.getProject().getName() + "-GWT", null);
      messageConsole.activate();
      ConsolePlugin.getDefault().getConsoleManager().addConsoles(new IConsole[] {messageConsole});
      final ConsoleColorProvider consoleColorProvider = new ConsoleColorProvider();
      final MessageConsoleStream console = messageConsole.newMessageStream();
      Display.getDefault().asyncExec(new Runnable() {
        @Override
        public void run() {
          console.setColor(consoleColorProvider.getColor(IDebugUIConstants.ID_STANDARD_ERROR_STREAM));
        }
      });
      console.println("GWT SDK not installed.");
      try {
        console.close();
      } catch (IOException e) {
        GWTPluginLog.logError(e, "Unable to close output stream to console");
      }
      return "";
    } else if (sdk.usesGwtDevProject()) {
      File gwtDevJarFile = sdk.getDevJar();
      return gwtDevJarFile.getAbsolutePath();
    }
  } catch (SdkException sdke) {
    GWTPluginLog.logError(sdke, "Unable to extract gwt dev jar argument from GWTProjectsRuntime");
  } catch (JavaModelException jme) {
    GWTPluginLog.logError(jme, "Unable to extract gwt dev jar argument from GWTProjectsRuntime");
  }
  return "";
}
 

/**
 * Returns {@link MessageConsoleStream} to the plugin console
 *
 * @return message console stream
 */
public static MessageConsoleStream getConsoleStream() {
	final MessageConsole pluginConsole = findConsole(PLUGIN);
	return pluginConsole.newMessageStream();
}