updatewindow.java

java 文件下载器。可自定义

				item.setText(2, DisplayFormatters.formatByteCountToBase10KBEtc(totalLength));
				item.setChecked(true);
				if (table.getItemCount() == 1)
				{
					table.select(0);
					rowSelected();
				}
				checkRestartNeeded();
				if (COConfigurationManager.getBooleanParameter("update.opendialog") || check_instance.getType() != 2)
				{
					show();
				} else
				{
					UIFunctionsSWT functionsSWT = UIFunctionsManagerSWT.getUIFunctionsSWT();
					if (functionsSWT != null)
					{
						MainStatusBar mainStatusBar = functionsSWT.getMainStatusBar();
						if (mainStatusBar != null)
							mainStatusBar.setUpdateNeeded(UpdateWindow.this);
					}
				}
			}

			
			{
				this$0 = UpdateWindow.this;
				update = update1;
				super();
			}
		});
	}

	protected void updateAdditionComplete()
	{
		if (display == null || display.isDisposed())
		{
			return;
		} else
		{
			display.asyncExec(new AERunnable() {

				final UpdateWindow this$0;

				public void runSupport()
				{
					if (btnOk == null || btnOk.isDisposed())
					{
						return;
					} else
					{
						btnOk.setEnabled(true);
						return;
					}
				}

			
			{
				this$0 = UpdateWindow.this;
				super();
			}
			});
			return;
		}
	}

	public void show()
	{
		if (updateWindow == null || updateWindow.isDisposed())
		{
			return;
		} else
		{
			Utils.centreWindow(updateWindow);
			updateWindow.open();
			updateWindow.forceActive();
			return;
		}
	}

	private void checkMandatory()
	{
		TableItem items[] = table.getItems();
		for (int i = 0; i < items.length; i++)
		{
			Update update = (Update)items[i].getData();
			if (update.isMandatory())
				items[i].setChecked(true);
		}

	}

	private void checkRestartNeeded()
	{
		restartRequired = false;
		boolean restartMaybeRequired = false;
		TableItem items[] = table.getItems();
		for (int i = 0; i < items.length; i++)
		{
			if (!items[i].getChecked())
				continue;
			Update update = (Update)items[i].getData();
			int required = update.getRestartRequired();
			if (required == 3)
			{
				restartMaybeRequired = true;
				continue;
			}
			if (required == 2)
				restartRequired = true;
		}

		if (restartRequired)
			status.setText(MessageText.getString("UpdateWindow.status.restartNeeded"));
		else
		if (restartMaybeRequired)
			status.setText(MessageText.getString("UpdateWindow.status.restartMaybeNeeded"));
		else
			status.setText("");
	}

	private void update()
	{
		btnOk.setEnabled(false);
		Messages.setLanguageText(btnCancel, "UpdateWindow.cancel");
		table.setEnabled(false);
		link_area.reset();
		if (browser != null)
			browser.setVisible(false);
		link_area.getComponent().setVisible(true);
		TableItem items[] = table.getItems();
		totalDownloadSize = 0L;
		downloaders = new ArrayList();
		for (int i = 0; i < items.length; i++)
		{
			if (!items[i].getChecked())
				continue;
			Update update = (Update)items[i].getData();
			ResourceDownloader rds[] = update.getDownloaders();
			for (int j = 0; j < rds.length; j++)
			{
				downloaders.add(rds[j]);
				try
				{
					totalDownloadSize += rds[j].getSize();
				}
				catch (Exception e)
				{
					link_area.addLine((new StringBuilder()).append(MessageText.getString("UpdateWindow.no_size")).append(rds[j].getName()).toString());
				}
			}

		}

		downloadersToData = new HashMap();
		iterDownloaders = downloaders.iterator();
		nextUpdate();
	}

	private void nextUpdate()
	{
		if (iterDownloaders.hasNext())
		{
			ResourceDownloader downloader = (ResourceDownloader)iterDownloaders.next();
			downloader.addListener(this);
			downloader.asyncDownload();
		} else
		{
			switchToRestart();
		}
	}

	private void switchToRestart()
	{
		if (display == null || display.isDisposed())
		{
			return;
		} else
		{
			display.asyncExec(new AERunnable() {

				final UpdateWindow this$0;

				public void runSupport()
				{
					checkRestartNeeded();
					progress.setSelection(100);
					status.setText(MessageText.getString("UpdateWindow.status.done"));
					btnOk.removeListener(13, lOk);
					btnOk.setEnabled(true);
					btnOk.addListener(13, new Listener() {

						final 11 this$1;

						public void handleEvent(Event e)
						{
							finishUpdate(true);
						}

					
					{
						this$1 = 11.this;
						super();
					}
					});
					if (restartRequired)
					{
						Messages.setLanguageText(btnOk, "UpdateWindow.restart");
						btnCancel.removeListener(13, lCancel);
						Messages.setLanguageText(btnCancel, "UpdateWindow.restartLater");
						btnCancel.addListener(13, new Listener() {

							final 11 this$1;

							public void handleEvent(Event e)
							{
								finishUpdate(false);
							}

					
					{
						this$1 = 11.this;
						super();
					}
						});
						updateWindow.layout();
					} else
					{
						Messages.setLanguageText(btnOk, "UpdateWindow.close");
						btnCancel.setEnabled(false);
						updateWindow.layout();
					}
				}

			
			{
				this$0 = UpdateWindow.this;
				super();
			}
			});
			return;
		}
	}

	public void reportPercentComplete(ResourceDownloader downloader, int percentage)
	{
		setProgressSelection(percentage);
	}

	public void reportAmountComplete(ResourceDownloader resourcedownloader, long l)
	{
	}

	private void setProgressSelection(final int percent)
	{
		if (display == null || display.isDisposed())
		{
			return;
		} else
		{
			display.asyncExec(new AERunnable() {

				final int val$percent;
				final UpdateWindow this$0;

				public void runSupport()
				{
					if (progress != null && !progress.isDisposed())
						progress.setSelection(percent);
				}

			
			{
				this$0 = UpdateWindow.this;
				percent = i;
				super();
			}
			});
			return;
		}
	}

	public boolean completed(ResourceDownloader downloader, InputStream data)
	{
		downloadersToData.put(downloader, data);
		downloader.removeListener(this);
		setProgressSelection(0);
		nextUpdate();
		return true;
	}

	public void failed(ResourceDownloader downloader, ResourceDownloaderException e)
	{
		downloader.removeListener(this);
		setStatusText(MessageText.getString("UpdateWindow.status.failed"));
		String msg = (new StringBuilder()).append(downloader.getName()).append(" : ").append(e).toString();
		if (e.getCause() != null)
			msg = (new StringBuilder()).append(msg).append(" [").append(e.getCause()).append("]").toString();
		appendDetails(msg);
	}

	public void reportActivity(ResourceDownloader downloader, String activity)
	{
		setStatusText(activity.trim());
		appendDetails(activity);
	}

	private void setStatusText(final String text)
	{
		if (display == null || display.isDisposed())
		{
			return;
		} else
		{
			display.asyncExec(new AERunnable() {

				final String val$text;
				final UpdateWindow this$0;

				public void runSupport()
				{
					if (status != null && !status.isDisposed())
						status.setText(text);
				}

			
			{
				this$0 = UpdateWindow.this;
				text = s;
				super();
			}
			});
			return;
		}
	}

	private void appendDetails(final String text)
	{
		if (display == null || display.isDisposed())
		{
			return;
		} else
		{
			display.asyncExec(new AERunnable() {

				final String val$text;
				final UpdateWindow this$0;

				public void runSupport()
				{
					link_area.addLine(text);
				}

			
			{
				this$0 = UpdateWindow.this;
				text = s;
				super();
			}
			});
			return;
		}
	}

	private void finishUpdate(boolean restartNow)
	{
		UIFunctionsSWT functionsSWT = UIFunctionsManagerSWT.getUIFunctionsSWT();
		if (functionsSWT != null)
		{
			MainStatusBar mainStatusBar = functionsSWT.getMainStatusBar();
			if (mainStatusBar != null)
				mainStatusBar.setUpdateNeeded(null);
		}
		boolean bDisposeUpdateWindow = true;
		if (restartRequired && restartNow)
		{
			UIFunctionsSWT uiFunctions = UIFunctionsManagerSWT.getUIFunctionsSWT();
			if (uiFunctions != null && uiFunctions.dispose(true, false))
				bDisposeUpdateWindow = false;
		} else
		if (hasMandatoryUpdates && !restartRequired)
			update_monitor.requestRecheck();
		if (bDisposeUpdateWindow)
			updateWindow.dispose();
	}

	protected boolean isDisposed()
	{
		return display == null || display.isDisposed() || updateWindow == null || updateWindow.isDisposed();
	}




}