/*
Copyright 2008-2010 Gephi
Authors : Mathieu Bastian <mathieu.bastian@gephi.org>
Website : http://www.gephi.org
This file is part of Gephi.
DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
Copyright 2011 Gephi Consortium. All rights reserved.
The contents of this file are subject to the terms of either the GNU
General Public License Version 3 only ("GPL") or the Common
Development and Distribution License("CDDL") (collectively, the
"License"). You may not use this file except in compliance with the
License. You can obtain a copy of the License at
http://gephi.org/about/legal/license-notice/
or /cddl-1.0.txt and /gpl-3.0.txt. See the License for the
specific language governing permissions and limitations under the
License. When distributing the software, include this License Header
Notice in each file and include the License files at
/cddl-1.0.txt and /gpl-3.0.txt. If applicable, add the following below the
License Header, with the fields enclosed by brackets [] replaced by
your own identifying information:
"Portions Copyrighted [year] [name of copyright owner]"
If you wish your version of this file to be governed by only the CDDL
or only the GPL Version 3, indicate your decision by adding
"[Contributor] elects to include this software in this distribution
under the [CDDL or GPL Version 3] license." If you do not indicate a
single choice of license, a recipient has the option to distribute
your version of this file under either the CDDL, the GPL Version 3 or
to extend the choice of license to its licensees as provided above.
However, if you add GPL Version 3 code and therefore, elected the GPL
Version 3 license, then the option applies only if the new code is
made subject to such option by the copyright holder.
Contributor(s):
Portions Copyrighted 2011 Gephi Consortium.
*/
package org.gephi.io.importer.impl;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStream;
import java.io.Reader;
import java.util.ArrayList;
import org.gephi.io.importer.api.Container;
import org.gephi.io.importer.api.ContainerFactory;
import org.gephi.io.importer.api.Database;
import org.gephi.io.importer.api.FileType;
import org.gephi.io.importer.api.ImportController;
import org.gephi.io.importer.api.ImportUtils;
import org.gephi.io.importer.api.Report;
import org.gephi.io.importer.spi.DatabaseImporter;
import org.gephi.io.importer.spi.DatabaseImporterBuilder;
import org.gephi.io.importer.spi.FileImporter;
import org.gephi.io.importer.spi.FileImporterBuilder;
import org.gephi.io.importer.spi.Importer;
import org.gephi.io.importer.spi.ImporterUI;
import org.gephi.io.importer.spi.ImporterWizardUI;
import org.gephi.io.importer.spi.SpigotImporter;
import org.gephi.io.importer.spi.SpigotImporterBuilder;
import org.gephi.io.processor.spi.Processor;
import org.gephi.io.processor.spi.Scaler;
import org.gephi.project.api.Workspace;
import org.openide.filesystems.FileObject;
import org.openide.filesystems.FileUtil;
import org.openide.util.Exceptions;
import org.openide.util.Lookup;
import org.openide.util.lookup.ServiceProvider;
/**
*
* @author Mathieu Bastian
* @author Sebastien Heymann
*/
@ServiceProvider(service = ImportController.class)
public class ImportControllerImpl implements ImportController {
private final FileImporterBuilder[] fileImporterBuilders;
private final DatabaseImporterBuilder[] databaseImporterBuilders;
private final SpigotImporterBuilder[] spigotImporterBuilders;
private final ImporterUI[] uis;
private final ImporterWizardUI[] wizardUis;
public ImportControllerImpl() {
//Get FileFormatImporters
fileImporterBuilders = Lookup.getDefault().lookupAll(FileImporterBuilder.class).toArray(new FileImporterBuilder[0]);
//Get DatabaseImporters
databaseImporterBuilders = Lookup.getDefault().lookupAll(DatabaseImporterBuilder.class).toArray(new DatabaseImporterBuilder[0]);
//Get Spigots
spigotImporterBuilders = Lookup.getDefault().lookupAll(SpigotImporterBuilder.class).toArray(new SpigotImporterBuilder[0]);
//Get UIS
uis = Lookup.getDefault().lookupAll(ImporterUI.class).toArray(new ImporterUI[0]);
wizardUis = Lookup.getDefault().lookupAll(ImporterWizardUI.class).toArray(new ImporterWizardUI[0]);
}
@Override
public FileImporter getFileImporter(File file) {
FileObject fileObject = FileUtil.toFileObject(file);
fileObject = getArchivedFile(fileObject); //Unzip and return content file
FileImporterBuilder builder = getMatchingImporter(fileObject);
if (fileObject != null && builder != null) {
FileImporter fi = builder.buildImporter();
if (fileObject.getPath().startsWith(System.getProperty("java.io.tmpdir"))) {
try {
fileObject.delete();
} catch (IOException ex) {
Exceptions.printStackTrace(ex);
}
}
return fi;
}
return null;
}
@Override
public FileImporter getFileImporter(String importerName) {
FileImporterBuilder builder = getMatchingImporter(importerName);
if (builder != null) {
return builder.buildImporter();
}
return null;
}
@Override
public Container importFile(File file) throws FileNotFoundException {
FileObject fileObject = FileUtil.toFileObject(file);
if (fileObject != null) {
fileObject = getArchivedFile(fileObject); //Unzip and return content file
FileImporterBuilder builder = getMatchingImporter(fileObject);
if (fileObject != null && builder != null) {
Container c = importFile(fileObject.getInputStream(), builder.buildImporter());
if (fileObject.getPath().startsWith(System.getProperty("java.io.tmpdir"))) {
try {
fileObject.delete();
} catch (IOException ex) {
Exceptions.printStackTrace(ex);
}
}
return c;
}
}
return null;
}
@Override
public Container importFile(File file, FileImporter importer) throws FileNotFoundException {
FileObject fileObject = FileUtil.toFileObject(file);
if (fileObject != null) {
fileObject = getArchivedFile(fileObject); //Unzip and return content file
if (fileObject != null) {
Container c = importFile(fileObject.getInputStream(), importer);
if (fileObject.getPath().startsWith(System.getProperty("java.io.tmpdir"))) {
try {
fileObject.delete();
} catch (IOException ex) {
Exceptions.printStackTrace(ex);
}
}
return c;
}
}
return null;
}
@Override
public Container importFile(Reader reader, FileImporter importer) {
//Create Container
final Container container = Lookup.getDefault().lookup(ContainerFactory.class).newContainer();
//Report
Report report = new Report();
container.setReport(report);
importer.setReader(reader);
try {
if (importer.execute(container.getLoader())) {
if (importer.getReport() != null) {
report.append(importer.getReport());
}
return container;
}
} catch (RuntimeException ex) {
throw ex;
} catch (Exception ex) {
throw new RuntimeException(ex);
}
return null;
}
@Override
public Container importFile(InputStream stream, FileImporter importer) {
try {
Reader reader = ImportUtils.getTextReader(stream);
return importFile(reader, importer);
} catch (Exception ex) {
throw new RuntimeException(ex);
}
}
@Override
public Container importDatabase(Database database, DatabaseImporter importer) {
//Create Container
final Container container = Lookup.getDefault().lookup(ContainerFactory.class).newContainer();
//Report
Report report = new Report();
container.setReport(report);
importer.setDatabase(database);
try {
if (importer.execute(container.getLoader())) {
if (importer.getReport() != null) {
report.append(importer.getReport());
}
return container;
}
} catch (RuntimeException ex) {
throw ex;
} catch (Exception ex) {
throw new RuntimeException(ex);
}
return null;
}
@Override
public Container importSpigot(SpigotImporter importer) {
//Create Container
final Container container = Lookup.getDefault().lookup(ContainerFactory.class).newContainer();
//Report
Report report = new Report();
container.setReport(report);
try {
if (importer.execute(container.getLoader())) {
if (importer.getReport() != null) {
report.append(importer.getReport());
}
return container;
}
} catch (RuntimeException ex) {
throw ex;
} catch (Exception ex) {
throw new RuntimeException(ex);
}
return null;
}
@Override
public void process(Container container) {
Processor processor = Lookup.getDefault().lookup(Processor.class);
if (processor == null) {
throw new RuntimeException("Impossible to find Default Processor");
}
process(container, processor, null);
}
@Override
public void process(Container container, Processor processor, Workspace workspace) {
container.closeLoader();
if (container.getUnloader().isAutoScale()) {
Scaler scaler = Lookup.getDefault().lookup(Scaler.class);
if (scaler != null) {
scaler.doScale(container);
}
}
processor.setContainer(container.getUnloader());
processor.setWorkspace(workspace);
processor.process();
}
private FileObject getArchivedFile(FileObject fileObject) {
if (fileObject == null) {
return null;
}
// ZIP and JAR archives
if (FileUtil.isArchiveFile(fileObject)) {
fileObject = FileUtil.getArchiveRoot(fileObject).getChildren()[0];
} else { // GZ or BZIP2 archives
boolean isGz = fileObject.getExt().equalsIgnoreCase("gz");
boolean isBzip = fileObject.getExt().equalsIgnoreCase("bz2");
if (isGz || isBzip) {
try {
String[] splittedFileName = fileObject.getName().split("\\.");
if (splittedFileName.length < 2) {
return fileObject;
}
String fileExt1 = splittedFileName[splittedFileName.length - 1];
String fileExt2 = splittedFileName[splittedFileName.length - 2];
File tempFile = null;
if (fileExt1.equalsIgnoreCase("tar")) {
String fname = fileObject.getName().replaceAll("\\.tar$", "");
fname = fname.replace(fileExt2, "");
tempFile = File.createTempFile(fname, "." + fileExt2);
// Untar & unzip
if (isGz) {
tempFile = ImportUtils.getGzFile(fileObject, tempFile, true);
} else {
tempFile = ImportUtils.getBzipFile(fileObject, tempFile, true);
}
} else {
String fname = fileObject.getName();
fname = fname.replace(fileExt1, "");
tempFile = File.createTempFile(fname, "." + fileExt1);
// Unzip
if (isGz) {
tempFile = ImportUtils.getGzFile(fileObject, tempFile, false);
} else {
tempFile = ImportUtils.getBzipFile(fileObject, tempFile, false);
}
}
tempFile.deleteOnExit();
tempFile = FileUtil.normalizeFile(tempFile);
fileObject = FileUtil.toFileObject(tempFile);
} catch (IOException ex) {
Exceptions.printStackTrace(ex);
}
}
}
return fileObject;
}
private FileImporterBuilder getMatchingImporter(FileObject fileObject) {
if (fileObject == null) {
return null;
}
for (FileImporterBuilder im : fileImporterBuilders) {
if (im.isMatchingImporter(fileObject)) {
return im;
}
}
return null;
}
private FileImporterBuilder getMatchingImporter(String extension) {
for (FileImporterBuilder im : fileImporterBuilders) {
for (FileType ft : im.getFileTypes()) {
for (String ext : ft.getExtensions()) {
if (ext.equalsIgnoreCase(extension)) {
return im;
}
}
}
}
return null;
}
@Override
public FileType[] getFileTypes() {
ArrayList<FileType> list = new ArrayList<FileType>();
for (FileImporterBuilder im : fileImporterBuilders) {
for (FileType ft : im.getFileTypes()) {
list.add(ft);
}
}
return list.toArray(new FileType[0]);
}
@Override
public boolean isFileSupported(File file) {
FileObject fileObject = FileUtil.toFileObject(file);
for (FileImporterBuilder im : fileImporterBuilders) {
if (im.isMatchingImporter(fileObject)) {
return true;
}
}
if (fileObject.getExt().equalsIgnoreCase("zip")
|| fileObject.getExt().equalsIgnoreCase("gz")
|| fileObject.getExt().equalsIgnoreCase("bz2")) {
return true;
}
return false;
}
@Override
public ImporterUI getUI(Importer importer) {
for (ImporterUI ui : uis) {
if (ui.isUIForImporter(importer)) {
return ui;
}
}
return null;
}
@Override
public ImporterWizardUI getWizardUI(Importer importer) {
for (ImporterWizardUI ui : wizardUis) {
if (ui.isUIForImporter(importer)) {
return ui;
}
}
return null;
}
}