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/*******************************************************************************
* Copyright (c) 2007, 2017 IBM Corporation and others.
*
* This program and the accompanying materials
* are made available under the terms of the Eclipse Public License 2.0
* which accompanies this distribution, and is available at
* https://www.eclipse.org/legal/epl-2.0/
*
* SPDX-License-Identifier: EPL-2.0
*
* Contributors:
* IBM Corporation - initial API and implementation
* Pascal Rapicault - Support for bundled macosx http://bugs.eclipse.org/57349
*******************************************************************************/
package org.eclipse.equinox.internal.frameworkadmin.equinox.utils;
import java.io.*;
import java.net.*;
import java.util.*;
import org.eclipse.core.runtime.*;
import org.eclipse.equinox.internal.frameworkadmin.equinox.EquinoxConstants;
import org.eclipse.equinox.internal.frameworkadmin.equinox.ParserUtils;
import org.eclipse.equinox.internal.provisional.frameworkadmin.LauncherData;
import org.eclipse.equinox.internal.provisional.frameworkadmin.Manipulator;
import org.eclipse.osgi.service.environment.Constants;
import org.osgi.framework.Version;
public class FileUtils {
private static String FILE_SCHEME = "file"; //$NON-NLS-1$
private static String FILE_PROTOCOL = "file:"; //$NON-NLS-1$
private static String REFERENCE_PROTOCOL = "reference:"; //$NON-NLS-1$
private static String INITIAL_PREFIX = "initial@"; //$NON-NLS-1$
// based on org.eclipse.core.runtime.adaptor.EclipseStarter#searchForBundle
public static URI getEclipseRealLocation(Manipulator manipulator, String location) {
//if this is some form of URL just return it
try {
new URL(location);
return URIUtil.makeAbsolute(new URI(location), ParserUtils.getOSGiInstallArea(Arrays.asList(manipulator.getLauncherData().getProgramArgs()), manipulator.getConfigData().getProperties(), manipulator.getLauncherData()).toURI());
} catch (URISyntaxException e) {
// expected
} catch (MalformedURLException e) {
// expected
}
File base = new File(location);
if (!base.isAbsolute()) {
String pluginsDir = getSysPath(manipulator);
if (pluginsDir == null)
return null;
base = new File(pluginsDir, location);
}
return getEclipsePluginFullLocation(base.getName(), base.getParentFile());
}
//This mimics the logic of EclipseStarter#getSysPath();
private static String getSysPath(final Manipulator manipulator) {
Properties properties = manipulator.getConfigData().getProperties();
String path = (String) properties.get(EquinoxConstants.PROP_OSGI_SYSPATH);
if (path != null)
return path;
path = (String) properties.get(EquinoxConstants.PROP_OSGI_FW);
if (path != null) {
if (path.startsWith(FILE_PROTOCOL))
path = path.substring(FILE_PROTOCOL.length());
File file = new File(path);
return file.getParentFile().getAbsolutePath();
}
LauncherData launcherData = manipulator.getLauncherData();
File home = launcherData.getHome();
File pluginsDir = null;
if (home != null)
pluginsDir = new File(home, EquinoxConstants.PLUGINS_DIR);
else if (launcherData.getFwJar() != null)
pluginsDir = launcherData.getFwJar().getParentFile();
else if (launcherData.getLauncher() != null) {
File launcherDir = null;
if (Constants.OS_MACOSX.equals(launcherData.getOS())) {
IPath launcherPath = new Path(launcherData.getLauncher().getAbsolutePath());
if (launcherPath.segmentCount() > 2) {
launcherPath = launcherPath.removeLastSegments(2).append("Eclipse");
launcherDir = launcherPath.toFile();
}
} else
launcherDir = launcherData.getLauncher().getParentFile();
pluginsDir = new File(launcherDir, EquinoxConstants.PLUGINS_DIR);
}
if (pluginsDir != null)
return pluginsDir.getAbsolutePath();
return null;
}
public static String removeEquinoxSpecificProtocols(String location) {
if (location == null)
return null;
String ret = location;
if (location.startsWith(REFERENCE_PROTOCOL))
ret = location.substring(REFERENCE_PROTOCOL.length());
else if (location.startsWith(INITIAL_PREFIX))
ret = location.substring(INITIAL_PREFIX.length());
return ret;
}
public static URI getRealLocation(Manipulator manipulator, final String location) {
return FileUtils.getEclipseRealLocation(manipulator, removeEquinoxSpecificProtocols(location));
}
/**
* If a bundle of the specified location is in the Eclipse plugin format (either plugin-name_version.jar
* or as a folder named plugin-name_version ), return version string.Otherwise, return null;
*
* @return version string. If invalid format, return null.
*/
private static Version getVersion(String version) {
if (version.length() == 0)
return Version.emptyVersion;
if (version.endsWith(".jar")) //$NON-NLS-1$
version = version.substring(0, version.length() - 4);
try {
return new Version(version);
} catch (IllegalArgumentException e) {
// bad format
return null;
}
}
/**
* Find the named plugin in the given bundlesDir
* @param pluginName
* @param bundlesDir
* @return a URL string for the found plugin, or null
*/
// Based on org.eclipse.core.runtime.adaptor.EclipseStarter#searchFor
public static URI getEclipsePluginFullLocation(String pluginName, File bundlesDir) {
if (bundlesDir == null)
return null;
File[] candidates = bundlesDir.listFiles();
if (candidates == null)
return null;
File result = null;
Version maxVersion = null;
for (int i = 0; i < candidates.length; i++) {
String candidateName = candidates[i].getName();
if (!candidateName.startsWith(pluginName))
continue;
if (candidateName.length() > pluginName.length() && candidateName.charAt(pluginName.length()) != '_') {
// allow jar file with no _version tacked on the end
if (!candidates[i].isFile() || (candidateName.length() != 4 + pluginName.length()) || !candidateName.endsWith(".jar")) //$NON-NLS-1$
continue;
}
String candidateVersion = ""; //$NON-NLS-1$
if (candidateName.length() > pluginName.length() + 1 && candidateName.charAt(pluginName.length()) == '_')
candidateVersion = candidateName.substring(pluginName.length() + 1);
Version currentVersion = getVersion(candidateVersion);
if (currentVersion == null)
continue;
if (maxVersion == null || maxVersion.compareTo(currentVersion) < 0) {
maxVersion = currentVersion;
result = candidates[i];
}
}
return result != null ? result.getAbsoluteFile().toURI() : null;
}
public static URI fromPath(String path) throws URISyntaxException {
if (path.startsWith(FILE_PROTOCOL)) {
try {
return new URI(path);
} catch (URISyntaxException e) {
path = path.substring(FILE_PROTOCOL.length() + 1);
}
}
File f = new File(path);
if (f.isAbsolute())
return f.toURI();
return URIUtil.fromString(FILE_PROTOCOL + path);
}
public static String toPath(URI uri) {
if (!FILE_SCHEME.equalsIgnoreCase(uri.getScheme()))
return new File(URIUtil.toUnencodedString(uri)).getPath();
return URIUtil.toFile(uri).getAbsolutePath();
}
public static String toFileURL(URI uri) {
if (uri.getScheme() != null)
return URIUtil.toUnencodedString(uri);
return FILE_PROTOCOL + URIUtil.toUnencodedString(uri);
}
public static URI fromFileURL(String url) throws URISyntaxException {
if (url.startsWith(FILE_PROTOCOL)) {
return URIUtil.fromString(new File(url.substring(FILE_PROTOCOL.length())).isAbsolute() ? url : url.substring(FILE_PROTOCOL.length()));
}
throw new URISyntaxException(url, "Not a file url"); //$NON-NLS-1$
}
/**
* Loads an ini file, returning a list of all non-blank lines in the file.
*/
public static List<String> loadFile(File file) throws IOException {
try (BufferedReader br = new BufferedReader(new FileReader(file));) {
String line;
List<String> list = new ArrayList<>();
while ((line = br.readLine()) != null) {
//skip whitespace
if (line.trim().length() > 0)
list.add(line);
}
return list;
}
}
}
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