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/*
* Copyright (c) 2010, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*
*/
package com.github.dcevm.installer;
import java.io.IOException;
import java.io.InputStream;
import java.nio.file.*;
import java.util.ArrayList;
import java.util.List;
/**
* @author Kerstin Breiteneder
* @author Christoph Wimberger
* @author Ivan Dubrov
* @author Jiri Bubnik
*/
public class Installer {
private ConfigurationInfo config;
public Installer(ConfigurationInfo config) {
this.config = config;
}
public void install(Path dir, boolean bit64, boolean altjvm) throws IOException {
if (config.isJDK(dir)) {
dir = dir.resolve(config.getJREDirectory());
}
if (!altjvm) {
Path serverPath = dir.resolve(config.getServerPath(bit64));
if (Files.exists(serverPath)) {
installClientServer(serverPath, bit64);
}
Path clientPath = dir.resolve(config.getClientPath());
if (Files.exists(clientPath) && !bit64) {
installClientServer(clientPath, false);
}
} else {
Path altjvmPath = dir.resolve(bit64 ? config.getDcevm64Path() : config.getDcevm32Path());
if (!Files.exists(altjvmPath)) {
Files.createDirectory(altjvmPath);
}
installClientServer(altjvmPath, bit64);
}
}
/**
* Try to uninstall DCEVM from all locations (skip if not exists).
*/
public void uninstall(Path dir, boolean bit64) throws IOException {
if (config.isJDK(dir)) {
dir = dir.resolve(config.getJREDirectory());
}
Path serverPath = dir.resolve(config.getServerPath(bit64));
if (Files.exists(serverPath)) {
uninstallClientServer(serverPath);
}
Path clientPath = dir.resolve(config.getClientPath());
if (Files.exists(clientPath) && !bit64) {
uninstallClientServer(clientPath);
}
Path dcevm32Path = dir.resolve(config.getDcevm32Path());
if (Files.exists(dcevm32Path)) {
Files.deleteIfExists(dcevm32Path.resolve(config.getLibraryName()));
Files.deleteIfExists(dcevm32Path.resolve(config.getBackupLibraryName()));
Files.delete(dcevm32Path);
}
Path dcevm64Path = dir.resolve(config.getDcevm64Path());
if (Files.exists(dcevm64Path)) {
Files.deleteIfExists(dcevm64Path.resolve(config.getLibraryName()));
Files.deleteIfExists(dcevm64Path.resolve(config.getBackupLibraryName()));
Files.delete(dcevm64Path);
}
}
public List<Installation> listInstallations() {
return scanPaths(config.paths());
}
public ConfigurationInfo getConfiguration() {
return config;
}
private void installClientServer(Path path, boolean bit64) throws IOException {
String resource = config.getResourcePath(bit64) + "/product/" + config.getLibraryName();
Path library = path.resolve(config.getLibraryName());
Path backup = path.resolve(config.getBackupLibraryName());
// backup any existing library (assume original JVM file)
if (Files.exists(library)) {
Files.move(library, backup);
}
try {
// install actual DCEVM file
try (InputStream in = getClass().getClassLoader().getResourceAsStream(resource)) {
if (in == null) {
throw new IOException("DCEVM not available for java at '" + path + "'. Missing resource " + resource);
}
Files.copy(in, library);
}
} catch (NullPointerException | IOException e) {
// try to restore original file
if (Files.exists(backup)) {
Files.move(backup, library, StandardCopyOption.REPLACE_EXISTING);
}
throw e;
}
}
private void uninstallClientServer(Path path) throws IOException {
Path library = path.resolve(config.getLibraryName());
Path backup = path.resolve(config.getBackupLibraryName());
if (Files.exists(backup)) {
Files.delete(library);
Files.move(backup, library);
}
}
private List<Installation> scanPaths(String... dirPaths) {
List<Installation> installations = new ArrayList<>();
for (String dirPath : dirPaths) {
Path dir = Paths.get(dirPath);
if (Files.isDirectory(dir)) {
try (DirectoryStream<Path> stream = Files.newDirectoryStream(dir)) {
scanDirectory(stream, installations);
} catch (Exception ex) {
// Ignore, try different directory
ex.printStackTrace();
}
}
}
return installations;
}
private void scanDirectory(DirectoryStream<Path> stream, List<Installation> installations) {
for (Path path : stream) {
if (Files.isDirectory(path) && (config.isJDK(path) || config.isJRE(path))) {
try {
Installation inst = new Installation(config, path);
if (!installations.contains(inst)) {
installations.add(inst);
}
} catch (Exception ex) {
// FIXME: just ignore the installation for now..
ex.printStackTrace();
}
}
}
}
}
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