--- /dev/null
+/*******************************************************************************\r
+ * Copyright (c) 2007, 2010 Association for Decentralized Information Management\r
+ * in Industry THTH ry.\r
+ * All rights reserved. This program and the accompanying materials\r
+ * are made available under the terms of the Eclipse Public License v1.0\r
+ * which accompanies this distribution, and is available at\r
+ * http://www.eclipse.org/legal/epl-v10.html\r
+ *\r
+ * Contributors:\r
+ * VTT Technical Research Centre of Finland - initial API and implementation\r
+ *******************************************************************************/\r
+package org.simantics.message.ui;
+
+import java.io.*;
+import java.lang.reflect.InvocationTargetException;
+import org.eclipse.core.runtime.IProgressMonitor;
+import org.eclipse.jface.dialogs.*;
+import org.eclipse.jface.operation.IRunnableWithProgress;
+import org.eclipse.swt.SWT;
+import org.eclipse.swt.graphics.Point;
+import org.eclipse.swt.layout.GridData;
+import org.eclipse.swt.widgets.*;
+
+/**
+ * Displays the error log in non-Win32 platforms - see bug 55314.
+ */
+public final class OpenLogDialog extends TrayDialog {
+ // input log file
+ private File logFile;
+ // location/size configuration
+ private IDialogSettings dialogSettings;
+ private Point dialogLocation;
+ private Point dialogSize;
+ private int DEFAULT_WIDTH = 750;
+ private int DEFAULT_HEIGHT = 800;
+
+ public OpenLogDialog(Shell parentShell, File logFile) {
+ super(parentShell);
+ this.logFile = logFile;
+ setShellStyle(SWT.DIALOG_TRIM | SWT.RESIZE | SWT.MAX | SWT.MIN | SWT.MODELESS);
+
+ }
+
+ /*
+ * (non-Javadoc) Method declared on Window.
+ */
+ protected void configureShell(Shell newShell) {
+ super.configureShell(newShell);
+ newShell.setText(Messages.OpenLogDialog_title);
+ readConfiguration();
+ }
+
+ /*
+ * (non-Javadoc) Method declared on Dialog.
+ */
+ protected void createButtonsForButtonBar(Composite parent) {
+ createButton(parent, IDialogConstants.CLOSE_ID, IDialogConstants.CLOSE_LABEL, true);
+ }
+
+ public void create() {
+ super.create();
+ // dialog location
+ if (dialogLocation != null)
+ getShell().setLocation(dialogLocation);
+ // dialog size
+ if (dialogSize != null)
+ getShell().setSize(dialogSize);
+ else
+ getShell().setSize(DEFAULT_WIDTH, DEFAULT_HEIGHT);
+ getButton(IDialogConstants.CLOSE_ID).setFocus();
+ }
+
+ /*
+ * (non-Javadoc) Method declared on Dialog.
+ */
+ protected Control createDialogArea(Composite parent) {
+ Composite outer = (Composite) super.createDialogArea(parent);
+ Text text = new Text(outer, SWT.MULTI | SWT.BORDER | SWT.READ_ONLY | SWT.V_SCROLL | SWT.NO_FOCUS | SWT.H_SCROLL);
+ text.setBackground(parent.getDisplay().getSystemColor(SWT.COLOR_LIST_BACKGROUND));
+ GridData gridData = new GridData(GridData.HORIZONTAL_ALIGN_FILL | GridData.VERTICAL_ALIGN_FILL);
+ gridData.grabExcessVerticalSpace = true;
+ gridData.grabExcessHorizontalSpace = true;
+ text.setLayoutData(gridData);
+ text.setText(getLogSummary());
+ return outer;
+ }
+
+ private String getLogSummary() {
+ StringWriter out = new StringWriter();
+ PrintWriter writer = new PrintWriter(out);
+ if (logFile.length() > LogReader.MAX_FILE_LENGTH) {
+ readLargeFileWithMonitor(writer);
+ } else {
+ readFileWithMonitor(writer);
+ }
+ writer.close();
+ return out.toString();
+ }
+
+ /*
+ * (non-Javadoc)
+ *
+ * @see org.eclipse.jface.dialogs.Dialog#buttonPressed(int)
+ */
+ protected void buttonPressed(int buttonId) {
+ if (buttonId == IDialogConstants.CLOSE_ID) {
+ storeSettings();
+ close();
+ }
+ super.buttonPressed(buttonId);
+ }
+
+ //--------------- configuration handling --------------
+ /**
+ * Stores the current state in the dialog settings.
+ *
+ * @since 2.0
+ */
+ private void storeSettings() {
+ writeConfiguration();
+ }
+
+ /**
+ * Returns the dialog settings object used to share state between several
+ * event detail dialogs.
+ *
+ * @return the dialog settings to be used
+ */
+ private IDialogSettings getDialogSettings() {
+ IDialogSettings settings = Activator.getDefault().getDialogSettings();
+ dialogSettings = settings.getSection(getClass().getName());
+ if (dialogSettings == null)
+ dialogSettings = settings.addNewSection(getClass().getName());
+ return dialogSettings;
+ }
+
+ /**
+ * Initializes itself from the dialog settings with the same state as at the
+ * previous invocation.
+ */
+ private void readConfiguration() {
+ IDialogSettings s = getDialogSettings();
+ try {
+ int x = s.getInt("x"); //$NON-NLS-1$
+ int y = s.getInt("y"); //$NON-NLS-1$
+ dialogLocation = new Point(x, y);
+ x = s.getInt("width"); //$NON-NLS-1$
+ y = s.getInt("height"); //$NON-NLS-1$
+ dialogSize = new Point(x, y);
+ } catch (NumberFormatException e) {
+ dialogLocation = null;
+ dialogSize = null;
+ }
+ }
+
+ private void writeConfiguration() {
+ IDialogSettings s = getDialogSettings();
+ Point location = getShell().getLocation();
+ s.put("x", location.x); //$NON-NLS-1$
+ s.put("y", location.y); //$NON-NLS-1$
+ Point size = getShell().getSize();
+ s.put("width", size.x); //$NON-NLS-1$
+ s.put("height", size.y); //$NON-NLS-1$
+ }
+
+ // reading file within MAX_FILE_LENGTH size
+ void readFile(PrintWriter writer) throws FileNotFoundException, IOException {
+ try (BufferedReader bReader = new BufferedReader(new FileReader(logFile))) {
+ while (bReader.ready())
+ writer.println(bReader.readLine());\r
+ }
+ }
+
+ // reading large files
+ void readLargeFile(PrintWriter writer) throws FileNotFoundException, IOException {
+ RandomAccessFile random = null;
+ boolean hasStarted = false;
+ try {
+ random = new RandomAccessFile(logFile, "r"); //$NON-NLS-1$
+ random.seek(logFile.length() - LogReader.MAX_FILE_LENGTH);
+ for (;;) {
+ String line = random.readLine();
+ if (line == null)
+ break;
+ line = line.trim();
+ if (line.length() == 0)
+ continue;
+ if (!hasStarted && (line.startsWith("!ENTRY") || line.startsWith("!SESSION"))) //$NON-NLS-1$ //$NON-NLS-2$
+ hasStarted = true;
+ if (hasStarted)
+ writer.println(line);
+ continue;
+ }
+ } finally {
+ try {
+ if (random != null)
+ random.close();
+ } catch (IOException e1) { // do nothing
+ }
+ }
+ }
+
+ private void readLargeFileWithMonitor(final PrintWriter writer) {
+ IRunnableWithProgress runnable = new IRunnableWithProgress() {
+ public void run(IProgressMonitor monitor) {
+ monitor.beginTask(Messages.OpenLogDialog_message, IProgressMonitor.UNKNOWN);
+ try {
+ readLargeFile(writer);
+ } catch (IOException e) {
+ writer.println(Messages.OpenLogDialog_cannotDisplay);
+ }
+ }
+ };
+ ProgressMonitorDialog dialog = new ProgressMonitorDialog(getParentShell());
+ try {
+ dialog.run(true, true, runnable);
+ } catch (InvocationTargetException e) { // do nothing
+ } catch (InterruptedException e) { // do nothing
+ }
+ }
+
+ private void readFileWithMonitor(final PrintWriter writer) {
+ IRunnableWithProgress runnable = new IRunnableWithProgress() {
+ public void run(IProgressMonitor monitor) {
+ monitor.beginTask(Messages.OpenLogDialog_message, IProgressMonitor.UNKNOWN);
+ try {
+ readFile(writer);
+ } catch (IOException e) {
+ writer.println(Messages.OpenLogDialog_cannotDisplay);
+ }
+ }
+ };
+ ProgressMonitorDialog dialog = new ProgressMonitorDialog(getParentShell());
+ try {
+ dialog.run(true, true, runnable);
+ } catch (InvocationTargetException e) { // do nothing
+ } catch (InterruptedException e) { // do nothing
+ }
+ }
+}
Code Review / simantics / platform.git / blobdiff