/**********************************************************************
* Copyright (c) 2013, 2014 Ericsson, École Polytechnique de Montréal
*
* 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:
* Matthew Khouzam - Initial API and implementation
* Patrick Tasse - Update open trace and add open experiment
* Geneviève Bastien - Merge methods to open trace and experiments
* Bernd Hufmann - Updated handling of directory traces
**********************************************************************/
package org.eclipse.tracecompass.tmf.ui.project.model;
import java.io.File;
import java.io.IOException;
import java.util.List;
import org.eclipse.core.resources.IFile;
import org.eclipse.core.resources.IFolder;
import org.eclipse.core.resources.IResource;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IPath;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.core.runtime.Path;
import org.eclipse.core.runtime.Status;
import org.eclipse.core.runtime.URIUtil;
import org.eclipse.jface.util.OpenStrategy;
import org.eclipse.osgi.util.NLS;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.MessageBox;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.tracecompass.internal.tmf.ui.Activator;
import org.eclipse.tracecompass.internal.tmf.ui.project.model.TmfImportHelper;
import org.eclipse.tracecompass.tmf.core.TmfCommonConstants;
import org.eclipse.tracecompass.tmf.core.event.ITmfEvent;
import org.eclipse.tracecompass.tmf.core.exceptions.TmfTraceException;
import org.eclipse.tracecompass.tmf.core.project.model.TmfTraceImportException;
import org.eclipse.tracecompass.tmf.core.project.model.TmfTraceType;
import org.eclipse.tracecompass.tmf.core.project.model.TraceTypeHelper;
import org.eclipse.tracecompass.tmf.core.trace.ITmfTrace;
import org.eclipse.tracecompass.tmf.core.trace.experiment.TmfExperiment;
import org.eclipse.tracecompass.tmf.ui.editors.TmfEditorInput;
import org.eclipse.tracecompass.tmf.ui.editors.TmfEventsEditor;
import org.eclipse.ui.IEditorInput;
import org.eclipse.ui.IEditorPart;
import org.eclipse.ui.IEditorReference;
import org.eclipse.ui.IReusableEditor;
import org.eclipse.ui.IWorkbench;
import org.eclipse.ui.IWorkbenchPage;
import org.eclipse.ui.PartInitException;
import org.eclipse.ui.PlatformUI;
import org.eclipse.ui.ide.IDE;
import org.eclipse.ui.part.FileEditorInput;
/**
* Open trace helper
*
* Helper class for opening trace resources and loading them to a tracing
* project.
*
* @author Matthew Khouzam
*/
public class TmfOpenTraceHelper {
private TmfOpenTraceHelper() {
}
private static final String ENDL = System.getProperty("line.separator"); //$NON-NLS-1$
/**
* Opens a trace from a path while importing it to the destination folder.
* The trace is linked as a resource.
*
* @param destinationFolder
* The destination trace folder
* @param path
* the file to import
* @param shell
* the shell to use for dialogs
* @return IStatus OK if successful
* @throws CoreException
* core exceptions if something is not well set up in the back
* end
*/
public static IStatus openTraceFromPath(TmfTraceFolder destinationFolder, String path, Shell shell) throws CoreException {
return openTraceFromPath(destinationFolder, path, shell, null);
}
/**
* Opens a trace from a path while importing it to the destination folder.
* The trace is linked as a resource.
*
* @param destinationFolder
* The destination trace folder
* @param path
* the file to import
* @param shell
* the shell to use for dialogs
* @param tracetypeHint
* The trace type id, can be null
* @return IStatus OK if successful
* @throws CoreException
* core exceptions if something is not well set up in the back
* end
*/
public static IStatus openTraceFromPath(TmfTraceFolder destinationFolder, String path, Shell shell, String tracetypeHint) throws CoreException {
final String pathToUse = checkTracePath(path);
TraceTypeHelper traceTypeToSet = null;
try {
traceTypeToSet = TmfTraceTypeUIUtils.selectTraceType(pathToUse, null, tracetypeHint);
} catch (TmfTraceImportException e) {
MessageBox mb = new MessageBox(shell);
mb.setMessage(e.getMessage());
mb.open();
return new Status(IStatus.ERROR, Activator.PLUGIN_ID, e.getMessage());
}
IFolder folder = destinationFolder.getResource();
String traceName = getTraceName(pathToUse, folder);
if (traceExists(pathToUse, folder)) {
return openTraceFromFolder(destinationFolder, traceName);
}
final IPath pathString = Path.fromOSString(pathToUse);
IResource linkedTrace = TmfImportHelper.createLink(folder, pathString, traceName);
if (linkedTrace == null || !linkedTrace.exists()) {
return new Status(IStatus.ERROR, Activator.PLUGIN_ID,
Messages.TmfOpenTraceHelper_LinkFailed);
}
String sourceLocation = URIUtil.toUnencodedString(pathString.toFile().toURI());
linkedTrace.setPersistentProperty(TmfCommonConstants.SOURCE_LOCATION, sourceLocation);
// No trace type was determined.
if (traceTypeToSet == null) {
return Status.OK_STATUS;
}
IStatus ret = TmfTraceTypeUIUtils.setTraceType(linkedTrace, traceTypeToSet);
if (ret.isOK()) {
ret = openTraceFromFolder(destinationFolder, traceName);
}
return ret;
}
/**
* Checks whether the parent or grandparent of given path to a file is a
* valid directory trace. If it is a directory trace then return the parent
* or grandparent path.
*
* @param path
* the path to check
* @return path to use for trace type validation.
*/
private static String checkTracePath(String path) {
File file = new File(path);
if (file.exists() && !file.isDirectory()) {
// First check parent
File parent = file.getParentFile();
String pathToUse = parent.getAbsolutePath();
if (TmfTraceType.isDirectoryTrace(pathToUse)) {
return pathToUse;
}
// Second check grandparent
File grandParent = parent.getParentFile();
if (grandParent != null) {
pathToUse = grandParent.getAbsolutePath();
if (TmfTraceType.isDirectoryTrace(pathToUse)) {
return pathToUse;
}
}
}
return path;
}
private static boolean traceExists(String path, IFolder folder) {
String val = getTraceName(path, folder);
return (folder.findMember(val) != null);
}
private static boolean isWrongMember(IFolder folder, String name, final File traceFile) {
final IResource candidate = folder.findMember(name);
if (candidate != null) {
final IPath rawLocation = candidate.getRawLocation();
File file = rawLocation.toFile();
try {
file = file.getCanonicalFile();
} catch (IOException e) {
/* just use original file path */
}
return !file.equals(traceFile);
}
return false;
}
/**
* Gets the display name, either "filename" or "filename(n)" if there is
* already a filename existing where n is the next unused integer starting
* from 2
*
* @param path
* the file path
* @param folder
* the folder to import to
* @return the filename
*/
private static String getTraceName(String path, IFolder folder) {
String name;
File traceFile = new File(path);
try {
traceFile = traceFile.getCanonicalFile();
} catch (IOException e) {
/* just use original file path */
}
name = traceFile.getName();
for (int i = 2; isWrongMember(folder, name, traceFile); i++) {
name = traceFile.getName() + '(' + i + ')';
}
return name;
}
/**
* Open a trace from a trace folder
*
* @param destinationFolder
* The destination trace folder
* @param traceName
* the trace name
* @return success or error
*/
private static IStatus openTraceFromFolder(TmfTraceFolder destinationFolder, String traceName) {
final List<ITmfProjectModelElement> elements = destinationFolder.getChildren();
TmfTraceElement traceElement = null;
for (ITmfProjectModelElement element : elements) {
if (element instanceof TmfTraceElement && element.getName().equals(traceName)) {
traceElement = (TmfTraceElement) element;
}
}
if (traceElement == null) {
return new Status(IStatus.ERROR, Activator.PLUGIN_ID, NLS.bind(Messages.TmfOpenTraceHelper_TraceNotFound, traceName));
}
openTraceFromElement(traceElement);
return Status.OK_STATUS;
}
private static ITmfTrace openTraceElement(final TmfTraceElement traceElement) {
final ITmfTrace trace = traceElement.instantiateTrace();
final ITmfEvent traceEvent = traceElement.instantiateEvent();
if ((trace == null) || (traceEvent == null)) {
TraceUtils.displayErrorMsg(NLS.bind(Messages.TmfOpenTraceHelper_OpenElement, traceElement.getTypeName()),
Messages.TmfOpenTraceHelper_NoTraceType);
if (trace != null) {
trace.dispose();
}
return null;
}
try {
trace.initTrace(traceElement.getResource(), traceElement.getResource().getLocation().toOSString(), traceEvent.getClass(), traceElement.getElementPath(), traceElement.getTraceType());
} catch (final TmfTraceException e) {
TraceUtils.displayErrorMsg(NLS.bind(Messages.TmfOpenTraceHelper_OpenElement, traceElement.getTypeName()),
Messages.TmfOpenTraceHelper_InitError + ENDL + ENDL + e, e);
trace.dispose();
return null;
}
return trace;
}
private static ITmfTrace openExperimentElement(final TmfExperimentElement experimentElement) {
/* Experiment element now has an experiment type associated with it */
final TmfExperiment experiment = experimentElement.instantiateTrace();
if (experiment == null) {
TraceUtils.displayErrorMsg(NLS.bind(Messages.TmfOpenTraceHelper_OpenElement, experimentElement.getTypeName()),
NLS.bind(Messages.TmfOpenTraceHelper_NoTraceOrExperimentType, experimentElement.getTypeName()));
return null;
}
// Instantiate the experiment's traces
final List<TmfTraceElement> traceEntries = experimentElement.getTraces();
int cacheSize = Integer.MAX_VALUE;
final ITmfTrace[] traces = new ITmfTrace[traceEntries.size()];
for (int i = 0; i < traceEntries.size(); i++) {
TmfTraceElement element = traceEntries.get(i);
// Since trace is under an experiment, use the original trace from
// the traces folder
element = element.getElementUnderTraceFolder();
ITmfTrace trace = openTraceElement(element);
if (trace == null) {
for (int j = 0; j < i; j++) {
traces[j].dispose();
}
return null;
}
cacheSize = Math.min(cacheSize, trace.getCacheSize());
traces[i] = trace;
}
// Create the experiment
experiment.initExperiment(ITmfEvent.class, experimentElement.getName(), traces, cacheSize, experimentElement.getResource());
return experiment;
}
private static ITmfTrace openProjectElement(final TmfCommonProjectElement element) {
ITmfTrace trace = null;
if (element instanceof TmfTraceElement) {
trace = openTraceElement((TmfTraceElement) element);
} else if (element instanceof TmfExperimentElement) {
trace = openExperimentElement((TmfExperimentElement) element);
}
return trace;
}
/**
* Open a trace (or experiment) from a project element. If the trace is already opened, its
* editor is activated and brought to top.
*
* @param traceElement
* the {@link TmfTraceElement} to open
*/
public static void openTraceFromElement(final TmfCommonProjectElement traceElement) {
final IFile file;
try {
file = traceElement.createBookmarksFile();
} catch (final CoreException e) {
Activator.getDefault().logError(NLS.bind(Messages.TmfOpenTraceHelper_ErrorOpeningElement, traceElement.getTypeName()) + ' ' + traceElement.getName());
TraceUtils.displayErrorMsg(NLS.bind(Messages.TmfOpenTraceHelper_OpenElement, traceElement.getTypeName()),
NLS.bind(Messages.TmfOpenTraceHelper_ErrorElement, traceElement.getTypeName()) + ENDL + ENDL + e.getMessage());
return;
}
final IWorkbench wb = PlatformUI.getWorkbench();
final IWorkbenchPage activePage = wb.getActiveWorkbenchWindow().getActivePage();
final IEditorPart editor = findEditor(new FileEditorInput(file), true);
if (editor != null) {
activePage.activate(editor);
return;
}
// If a trace type is not set then delegate it to the eclipse platform
if ((traceElement instanceof TmfTraceElement) && (traceElement.getResource() instanceof IFile) && (traceElement.getTraceType() == null)) {
try {
boolean activate = OpenStrategy.activateOnOpen();
// only local open is supported
IDE.openEditor(activePage, file, activate);
} catch (PartInitException e) {
TraceUtils.displayErrorMsg(NLS.bind(Messages.TmfOpenTraceHelper_OpenElement, traceElement.getTypeName()),
NLS.bind(Messages.TmfOpenTraceHelper_ErrorOpeningElement, traceElement.getElementPath()) + ENDL + ENDL + e.getMessage());
}
return;
}
Thread thread = new Thread() {
@Override
public void run() {
final ITmfTrace trace = openProjectElement(traceElement);
if (trace == null) {
return;
}
// Get the editor id from the extension point
String traceEditorId = traceElement.getEditorId();
final String editorId = (traceEditorId != null) ? traceEditorId : TmfEventsEditor.ID;
final IEditorInput editorInput = new TmfEditorInput(file, trace);
Display.getDefault().asyncExec(new Runnable() {
@Override
public void run() {
try {
activePage.openEditor(editorInput, editorId);
IDE.setDefaultEditor(file, editorId);
// editor should dispose the trace on close
} catch (final PartInitException e) {
TraceUtils.displayErrorMsg(NLS.bind(Messages.TmfOpenTraceHelper_OpenElement, traceElement.getTypeName()),
NLS.bind(Messages.TmfOpenTraceHelper_ErrorOpeningElement, traceElement.getTypeName()) + ENDL + ENDL + e.getMessage());
Activator.getDefault().logError(NLS.bind(Messages.TmfOpenTraceHelper_ErrorOpeningElement, traceElement.getTypeName()) + ' ' + traceElement.getName());
trace.dispose();
}
}
});
}
};
thread.start();
}
/**
* Returns the editor with the specified input. Returns null if there is no
* opened editor with that input. If restore is requested, the method finds
* and returns the editor even if it is not restored yet after a restart.
*
* @param input
* the editor input
* @param restore
* true if the editor should be restored
* @return an editor with input equals to <code>input</code>
*/
private static IEditorPart findEditor(IEditorInput input, boolean restore) {
final IWorkbench wb = PlatformUI.getWorkbench();
final IWorkbenchPage activePage = wb.getActiveWorkbenchWindow().getActivePage();
for (IEditorReference editorReference : activePage.getEditorReferences()) {
try {
IEditorInput editorInput = editorReference.getEditorInput();
if (editorInput.equals(input)) {
return editorReference.getEditor(restore);
}
} catch (PartInitException e) {
}
}
return null;
}
/**
* Reopen a trace or experiment from a project element in the provided
* editor
*
* @param traceElement
* the {@link TmfTraceElement} to open
* @param editor
* the reusable editor
*/
public static void reopenTraceFromElement(final TmfCommonProjectElement traceElement, final IReusableEditor editor) {
final IFile file;
try {
file = traceElement.createBookmarksFile();
} catch (final CoreException e) {
Activator.getDefault().logError(NLS.bind(Messages.TmfOpenTraceHelper_ErrorOpeningElement, traceElement.getTypeName()) + ' ' + traceElement.getName());
TraceUtils.displayErrorMsg(NLS.bind(Messages.TmfOpenTraceHelper_OpenElement, traceElement.getTypeName()),
NLS.bind(Messages.TmfOpenTraceHelper_ErrorElement, traceElement.getTypeName()) + ENDL + ENDL + e.getMessage());
return;
}
Thread thread = new Thread() {
@Override
public void run() {
final ITmfTrace trace = openProjectElement(traceElement);
if (trace == null) {
return;
}
final IEditorInput editorInput = new TmfEditorInput(file, trace);
Display.getDefault().asyncExec(new Runnable() {
@Override
public void run() {
final IWorkbench wb = PlatformUI.getWorkbench();
final IWorkbenchPage activePage = wb.getActiveWorkbenchWindow().getActivePage();
activePage.reuseEditor(editor, editorInput);
activePage.activate(editor);
}
});
}
};
thread.start();
}
}