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/*******************************************************************************
* Copyright (c) 2013, 2017 Red Hat Inc.
* 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:
* Red Hat Inc. - initial API and implementation
*******************************************************************************/
package org.eclipse.linuxtools.internal.perf.ui;
import java.io.IOException;
import java.nio.file.Files;
import java.nio.file.Path;
import java.text.MessageFormat;
import java.util.ArrayList;
import java.util.List;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import org.eclipse.compare.CompareUI;
import org.eclipse.compare.IEncodedStreamContentAccessor;
import org.eclipse.compare.ResourceNode;
import org.eclipse.compare.structuremergeviewer.Differencer;
import org.eclipse.compare.structuremergeviewer.ICompareInput;
import org.eclipse.core.resources.IProject;
import org.eclipse.core.resources.IResource;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IPath;
import org.eclipse.jface.resource.JFaceResources;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.jface.viewers.Viewer;
import org.eclipse.linuxtools.internal.perf.ReportComparisonData;
import org.eclipse.linuxtools.internal.perf.handlers.Messages;
import org.eclipse.swt.SWT;
import org.eclipse.swt.custom.StyleRange;
import org.eclipse.swt.custom.StyledText;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.events.SelectionListener;
import org.eclipse.swt.graphics.Color;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Label;
import org.eclipse.ui.ISharedImages;
import org.eclipse.ui.PlatformUI;
/**
* A view part to display perf comparison reports.
*/
public class ReportComparisonView extends Viewer {
// Color values constants
private static final Color RED = new Color(Display.getDefault(), 150, 0, 0);
private static final Color GREEN = new Color(Display.getDefault(), 0, 50, 0);
private static final Color LIGHT_GREEN = new Color(Display.getDefault(), 0, 105, 0);
private static final Color ORANGE = new Color(Display.getDefault(), 150, 100, 0);
// Regex for a generic entry in a perf comparison report.
private static final String DIFF_ENTRY = "\\s+(\\d+(\\.\\d+)?)\\%\\s+([\\+\\-]?\\d+(\\.\\d+)?)\\%.*"; //$NON-NLS-1$
private Composite fComposite;
private ICompareInput fInput;
// Comparison result.
private StyledText result;
private Label reverseLabel;
private boolean reverse;
public ReportComparisonView (Composite parent) {
fComposite = new Composite (parent, SWT.NONE);
fComposite.setLayout(new GridLayout(2, false));
fComposite.setData(CompareUI.COMPARE_VIEWER_TITLE, Messages.ReportComparisonView_label);
reverseLabel = new Label(fComposite, SWT.NONE);
reverseLabel.setLayoutData(new GridData(SWT.CENTER, SWT.CENTER, true, false));
reverseLabel.setText(Messages.StatComparisonView_reversedLabel);
reverseLabel.setVisible(false);
final Button reverse = new Button(fComposite, SWT.TOGGLE);
reverse.setImage(PlatformUI.getWorkbench().getSharedImages().getImage(ISharedImages.IMG_ELCL_SYNCED));
reverse.setToolTipText(Messages.StatComparisonView_reverseToolTip);
reverse.setLayoutData(new GridData(SWT.RIGHT, SWT.CENTER, false, false));
reverse.addSelectionListener(new SelectionListener() {
@Override
public void widgetSelected(SelectionEvent e) {
toggleReverse();
setInput(fInput);
}
@Override
public void widgetDefaultSelected(SelectionEvent e) {
}
});
result = new StyledText(fComposite, SWT.V_SCROLL | SWT.H_SCROLL);
result.setAlwaysShowScrollBars(false);
GridData gd = new GridData(SWT.FILL, SWT.FILL, true, true);
gd.horizontalSpan = 2;
result.setLayoutData(gd);
result.setEditable(false);
}
/**
* Set properties for StlyedText widget.
* @param input String StyledText content.
*/
private void setStyledText(String input) {
result.setText(input);
result.setJustify(true);
result.setAlignment(SWT.LEFT);
result.setFont(JFaceResources.getFont(JFaceResources.TEXT_FONT));
List<StyleRange> styles = new ArrayList<>();
int ptr = 0;
String[] lines = input.split("\n"); //$NON-NLS-1$
for(String line : lines){
if (Pattern.matches(DIFF_ENTRY, line)) {
Matcher m = Pattern.compile(DIFF_ENTRY).matcher(line);
if (m.matches() && m.group(1) != null && m.group(3) != null) {
try {
float baseline = Float.parseFloat(m.group(1).trim());
float delta = Float.parseFloat(m.group(3).trim());
if (baseline > 1 && Math.abs(delta) > 1) {
StyleRange curStyleRange;
if (delta < 0 ) {
curStyleRange = delta < -5 ? new StyleRange(ptr, line.length(), LIGHT_GREEN, null) :
new StyleRange(ptr, line.length(), GREEN, null);
} else {
curStyleRange = delta < 5 ? new StyleRange(ptr, line .length(), ORANGE, null) :
new StyleRange(ptr, line.length(), RED, null);
}
styles.add(curStyleRange);
}
} catch (NumberFormatException e) {
// set no StyleRange
}
}
}
// + 1 to skip over the '\n' at EOL that the tokenizer eats
ptr += line.length() + 1;
}
result.setStyleRanges(styles.toArray(new StyleRange[0]));
}
@Override
public Control getControl() {
return fComposite;
}
@Override
public Object getInput() {
return fInput;
}
@Override
public ISelection getSelection() {
return null;
}
@Override
public void refresh() {
}
@Override
public void setInput(Object input) {
if (input instanceof ICompareInput) {
fInput = (ICompareInput) input;
if (fInput.getAncestor() != null ||
(fInput.getKind() & Differencer.DIRECTION_MASK) != 0) {
setStyledText(Messages.CompUnsupported);
} else {
// get corresponding files
IPath oldDatum;
IPath newDatum;
IProject proj = null;
if (fInput.getLeft() instanceof ResourceNode) {
ResourceNode left = (ResourceNode) fInput.getLeft();
IResource oldData = left.getResource();
oldDatum = oldData.getLocation();
proj = oldData.getProject();
} else {
IEncodedStreamContentAccessor lStream = (IEncodedStreamContentAccessor) fInput.getLeft();
oldDatum = generateTempFile(lStream);
}
if (fInput.getRight() instanceof ResourceNode) {
ResourceNode right = (ResourceNode) fInput.getRight();
IResource newData = right.getResource();
newDatum = newData.getLocation();
proj = newData.getProject();
} else {
IEncodedStreamContentAccessor rStream = (IEncodedStreamContentAccessor) fInput.getRight();
newDatum = generateTempFile(rStream);
}
String title = MessageFormat.format(Messages.ContentDescription_0, oldDatum.toFile().getName(),
newDatum.toFile().getName());
// create comparison data and run comparison.
ReportComparisonData diffData;
if (reverse) {
diffData = new ReportComparisonData(title, oldDatum, newDatum, proj);
} else {
diffData = new ReportComparisonData(title, newDatum, oldDatum, proj);
}
diffData.parse();
setStyledText(diffData.getPerfData());
}
}
fComposite.layout();
}
@Override
public void setSelection(ISelection selection, boolean reveal) {
}
private IPath generateTempFile(IEncodedStreamContentAccessor stream) {
try {
Path tmpFile = Files.createTempFile("perf-report-", ".data"); //$NON-NLS-1$ //$NON-NLS-2$
tmpFile.toFile().delete();
Files.copy(stream.getContents(), tmpFile);
return new org.eclipse.core.runtime.Path(tmpFile.toString());
} catch (IOException|CoreException e) {
return null;
}
}
private void toggleReverse () {
if (reverse) {
reverse = false;
reverseLabel.setVisible(false);
} else {
reverse = true;
reverseLabel.setVisible(true);
}
}
}
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