Java获取系统设置 与 环境变量
可参考
https://www.cnblogs.com/jianlun/p/4773711.html
IGV目录管理
这份代码，简单易懂。
看完也基本能够很好的管理，不同操作系统下的程序缓存目录
/*
* The MIT License (MIT)
*
* Copyright (c) 2007-2018 Broad Institute
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
package org.broad.igv;
import org.apache.commons.io.FileUtils;
import org.apache.log4j.LogManager;
import org.apache.log4j.Logger;
import org.apache.logging.log4j.Level;
import org.apache.logging.log4j.core.LoggerContext;
import org.apache.logging.log4j.core.appender.RollingFileAppender;
import org.apache.logging.log4j.core.appender.rolling.SizeBasedTriggeringPolicy;
import org.apache.logging.log4j.core.config.Configuration;
import org.apache.logging.log4j.core.config.LoggerConfig;
import org.apache.logging.log4j.core.layout.PatternLayout;
import org.broad.igv.exceptions.DataLoadException;
import org.broad.igv.prefs.Constants;
import org.broad.igv.prefs.PreferencesManager;
import org.broad.igv.ui.util.FileDialogUtils;
import org.broad.igv.ui.util.MessageUtils;
import org.broad.igv.util.RuntimeUtils;
import javax.swing.*;
import javax.swing.filechooser.FileSystemView;
import java.io.File;
import java.io.IOException;
import java.nio.file.Files;
import java.nio.file.Path;
import java.util.prefs.Preferences;
/**
* @author Jim Robinson
* @date 3/19/12
*/
public class DirectoryManager {
private static Logger log = Logger.getLogger(DirectoryManager.class);
// static 在声明时分配空间，后续可随时赋值 -- 20190101
private static File USER_HOME;
private static File USER_DIRECTORY; // FileSystemView.getFileSystemView().getDefaultDirectory();
private static File IGV_DIRECTORY; // The IGV application directory
private static File GENOME_CACHE_DIRECTORY;
private static File GENE_LIST_DIRECTORY;
private static File BAM_CACHE_DIRECTORY;
final public static String IGV_DIR_USERPREF = "igvDir";
private static File getUserHome() {
if (USER_HOME == null) {
String userHomeString = System.getProperty("user.home");
USER_HOME = new File(userHomeString);
}
return USER_HOME;
}
/**
* The user directory. On Mac and Linux this should be the user home directory. On Windows platforms this
* is the "My Documents" directory.
*/
public static synchronized File getUserDirectory() {
if (USER_DIRECTORY == null) {
log.info("Fetching user directory... ");
USER_DIRECTORY = FileSystemView.getFileSystemView().getDefaultDirectory();
//Mostly for testing, in some environments USER_DIRECTORY can be null
if (USER_DIRECTORY == null) {
USER_DIRECTORY = getUserHome();
}
}
return USER_DIRECTORY;
}
public static void setIgvDirectory(File dir) {
log.info("IGV Directory: " + dir.getAbsolutePath());
IGV_DIRECTORY = dir;
}
public static File getIgvDirectory() {
if (IGV_DIRECTORY == null) {
// Hack for known Java / Windows bug. Attempt to remvoe (possible) read-only bit from user directory
if (System.getProperty("os.name").startsWith("Windows")) {
try {
// 解决在windows下可能出现的目录 只读 的问题.... -- 20190101
Runtime.getRuntime().exec("attrib -r \"" + getUserDirectory().getAbsolutePath() + "\"");
} catch (Exception e) {
// We tried
}
}
IGV_DIRECTORY = getIgvDirectoryOverride();
// If still null, try the default place
if (IGV_DIRECTORY == null) {
File rootDir = getUserHome();
IGV_DIRECTORY = new File(rootDir, "igv");
if (!IGV_DIRECTORY.exists()) {
// See if a pre-2.1 release directory exists, if so copy it
File legacyDirectory = null;
try {
legacyDirectory = getLegacyIGVDirectory();
if (legacyDirectory.exists()) {
log.info("Copying " + legacyDirectory + " => " + IGV_DIRECTORY);
FileUtils.copyDirectory(legacyDirectory, IGV_DIRECTORY);
}
} catch (IOException e) {
log.error("Error copying igv directory " + legacyDirectory + " => " + IGV_DIRECTORY, e);
}
}
if (!IGV_DIRECTORY.exists()) {
try {
boolean wasSuccessful = IGV_DIRECTORY.mkdir();
if (!wasSuccessful) {
log.error("Failed to create user directory!");
IGV_DIRECTORY = null;
}
} catch (Exception e) {
log.error("Error creating igv directory", e);
}
}
}
// The IGV directory either doesn't exist or isn't writeable. This situation can arise with Windows Vista
// and Windows 7 due to a Java bug (http://bugs.sun.com/view_bug.do?bug_id=4787931)
if (IGV_DIRECTORY == null || !IGV_DIRECTORY.exists() || !canWrite(IGV_DIRECTORY)) {
if (Globals.isHeadless() || Globals.isSuppressMessages()) {
System.err.println("Cannot write to igv directory: " + IGV_DIRECTORY.getAbsolutePath());
IGV_DIRECTORY = (new File(".")).getParentFile();
} else {
int option = JOptionPane.showConfirmDialog(null,
"<html>The default IGV directory (" + IGV_DIRECTORY + ") " +
"cannot be accessed. Click Yes to choose a new folder or No to exit.<br>" +
"This folder will be used to create the 'igv' directory",
"IGV Directory Error", JOptionPane.YES_NO_OPTION);
if (option == JOptionPane.YES_OPTION) {
File parentDirectory = FileDialogUtils.chooseDirectory("Select a location for the igv directory", null);
if (parentDirectory != null) {
IGV_DIRECTORY = new File(parentDirectory, "igv");
IGV_DIRECTORY.mkdir();
Preferences prefs = Preferences.userNodeForPackage(Globals.class);
prefs.put(IGV_DIR_USERPREF, IGV_DIRECTORY.getAbsolutePath());
}
}
}
}
if (IGV_DIRECTORY == null || !IGV_DIRECTORY.canRead()) {
throw new DataLoadException("Cannot read from user directory", IGV_DIRECTORY.getAbsolutePath());
} else if (!canWrite(IGV_DIRECTORY)) {
throw new DataLoadException("Cannot write to user directory", IGV_DIRECTORY.getAbsolutePath());
}
log.info("IGV Directory: " + IGV_DIRECTORY.getAbsolutePath());
}
return IGV_DIRECTORY;
}
private static File getIgvDirectoryOverride() {
Preferences userPrefs = null;
File override = null;
try {
// See if an override location has been specified. This is stored with the Java Preferences API
userPrefs = Preferences.userNodeForPackage(Globals.class);
String userDir = userPrefs.get(IGV_DIR_USERPREF, null);
if (userDir != null) {
override = new File(userDir);
if (!override.exists()) {
override = null;
userPrefs.remove(IGV_DIR_USERPREF);
}
}
} catch (Exception e) {
userPrefs.remove(IGV_DIR_USERPREF);
override = null;
log.error("Error creating user directory", e);
}
return override;
}
public static File getGenomeCacheDirectory() {
if (GENOME_CACHE_DIRECTORY == null) {
//Create the Genome Cache
GENOME_CACHE_DIRECTORY = new File(getIgvDirectory(), "genomes");
if (!GENOME_CACHE_DIRECTORY.exists()) {
GENOME_CACHE_DIRECTORY.mkdir();
}
if (!GENOME_CACHE_DIRECTORY.canRead()) {
throw new DataLoadException("Cannot read from user directory", GENOME_CACHE_DIRECTORY.getAbsolutePath());
} else if (!GENOME_CACHE_DIRECTORY.canWrite()) {
throw new DataLoadException("Cannot write to user directory", GENOME_CACHE_DIRECTORY.getAbsolutePath());
}
}
return GENOME_CACHE_DIRECTORY;
}
public static File getFastaCacheDirectory() {
File directory = null;
String cachePref = PreferencesManager.getPreferences().get(Constants.CRAM_CACHE_DIRECTORY);
if (cachePref != null) {
directory = new File(cachePref);
}
if(directory == null || !directory.exists() || !directory.isDirectory()) {
directory = new File(getGenomeCacheDirectory(), "seq");
if (!directory.exists()) {
directory.mkdir();
}
}
return directory;
}
public static File getGeneListDirectory() {
if (GENE_LIST_DIRECTORY == null) {
GENE_LIST_DIRECTORY = new File(getIgvDirectory(), "lists");
if (!GENE_LIST_DIRECTORY.exists()) {
GENE_LIST_DIRECTORY.mkdir();
}
if (!GENE_LIST_DIRECTORY.canRead()) {
throw new DataLoadException("Cannot read from user directory", GENE_LIST_DIRECTORY.getAbsolutePath());
} else if (!GENE_LIST_DIRECTORY.canWrite()) {
throw new DataLoadException("Cannot write to user directory", GENE_LIST_DIRECTORY.getAbsolutePath());
}
}
return GENE_LIST_DIRECTORY;
}
public static synchronized File getCacheDirectory() {
if (BAM_CACHE_DIRECTORY == null) {
File defaultDir = getIgvDirectory();
if (defaultDir.exists()) {
BAM_CACHE_DIRECTORY = new File(defaultDir, "bam");
if (!BAM_CACHE_DIRECTORY.exists()) {
BAM_CACHE_DIRECTORY.mkdir();
}
}
}
return BAM_CACHE_DIRECTORY;
}
public static synchronized File getSamDirectory() {
File samDir = new File(DirectoryManager.getIgvDirectory(), "sam");
if (!samDir.exists()) {
samDir.mkdir();
}
return samDir;
}
public static synchronized File getLogFile() throws IOException {
File logFile = new File(getIgvDirectory(), "igv.log");
if (!logFile.exists()) {
logFile.createNewFile();
}
return logFile;
}
/**
* Return the user preferences property file ("~/igv/prefs.properties").
*
* @return
*/
// 配置文件....
public static synchronized File getPreferencesFile() {
File igvDirectoy = getIgvDirectory();
File igvPropertyFile = new File(igvDirectoy, "prefs.properties");
// If the property file doesn't exist, try the "legacy" location. This should only make a difference for Macs
if (!igvPropertyFile.exists()) {
File oldFile = getLegacyPreferencesFile();
if (oldFile.exists()) {
try {
// Copy contents to new location. Leave oldFile in place for compatibility with earlier IGV releases
FileUtils.copyFile(oldFile, igvPropertyFile);
} catch (IOException e) {
log.error("Error copy property file from: " + oldFile + " to: " + igvPropertyFile, e);
}
}
}
if (!igvPropertyFile.exists()) {
try {
igvPropertyFile.createNewFile();
} catch (IOException e) {
log.error("Could not create property file: " + igvPropertyFile, e);
}
}
return igvPropertyFile;
}
/**
* Move the "igv" directory to a new location, copying all contents. Returns True if the directory
* is successfully moved, irrespective of any errors that might occur later (e.g. when attempting to
* remove the old directory).
*
* @param newIGVDirectory
* @return True if the directory is successfully moved, false otherwise
*/
public static Boolean moveIGVDirectory(final File newIGVDirectory) {
if (newIGVDirectory.equals(IGV_DIRECTORY)) {
return false; // Nothing to do
}
if (IGV_DIRECTORY != null && IGV_DIRECTORY.exists()) {
File oldDirectory = IGV_DIRECTORY;
try {
log.info("Moving igv directory from " + oldDirectory.getParent() + " to " +
newIGVDirectory.getAbsolutePath());
FileUtils.copyDirectory(IGV_DIRECTORY, newIGVDirectory);
IGV_DIRECTORY = newIGVDirectory;
// Store location of new directory in Java preferences node (not pref.properties)
Preferences prefs = Preferences.userNodeForPackage(Globals.class);
prefs.put(IGV_DIR_USERPREF, newIGVDirectory.getAbsolutePath());
// Update preference manager with new file location
PreferencesManager.setPrefsFile(getPreferencesFile().getAbsolutePath());
} catch (IOException e) {
log.error("Error copying IGV directory", e);
MessageUtils.showMessage("<html>Error moving IGV directory:<br/> nbsp;" + e.getMessage());
return false;
}
// Restart the log
LogManager.shutdown();
initializeLog();
// Try to delete the old directory
try {
deleteDirectory(oldDirectory);
} catch (IOException e) {
log.error("An error was encountered deleting the previous IGV directory", e);
MessageUtils.showMessage("<html>An error was encountered deleting the previous IGV directory (" +
e.getMessage() + "):<br> nbsp;nbsp;" + oldDirectory.getAbsolutePath() +
"<br>Remaining files should be manually deleted.");
}
}
GENOME_CACHE_DIRECTORY = null;
GENE_LIST_DIRECTORY = null;
BAM_CACHE_DIRECTORY = null;
return true;
}
public static void moveDirectoryContents(File oldDirectory, File newDirectory) {
if (oldDirectory != null && oldDirectory.exists() && oldDirectory.isDirectory() &&
newDirectory != null && newDirectory.exists() && newDirectory.isDirectory()) {
for (File f : oldDirectory.listFiles()) {
Path p1 = f.toPath();
Path p2 = (new File(newDirectory, f.getName())).toPath();
try {
Files.move(p1, p2);
} catch (IOException e) {
log.error("Error moving file", e);
}
}
}
}
/**
* Delete the directory and all contents recursively. The apache FileUtils is hanging on Linux.
*
* @param oldDirectory
* @throws IOException
*/
private static void deleteDirectory(File oldDirectory) throws IOException {
if (Globals.IS_LINUX || Globals.IS_MAC) {
//System.out.println("Deleting: " + oldDirectory);
String[] cmd = new String[]{"rm", "-rf", oldDirectory.getAbsolutePath()};
String result = RuntimeUtils.executeShellCommand(cmd, null, null);
if (result != null && result.trim().length() > 0) {
log.info("Response from 'rm -rf': " + result);
}
} else {
// The apache commons FileUtils is not working reliably
org.broad.igv.util.FileUtils.deleteDir(oldDirectory);
}
}
/**
* Return the pre 2.1 release properties file. This may or may not exist.
*
* @return
*/
private static synchronized File getLegacyPreferencesFile() {
File rootDir = getLegacyIGVDirectory();
return new File(rootDir, "prefs.properties");
}
/**
* REturn the pre 2.1 release IGV directory. This differs from the current location only for Macs.
*
* @return
*/
private static File getLegacyIGVDirectory() {
File rootDir = getUserHome();
if (Globals.IS_MAC) {
rootDir = new File(rootDir, ".igv");
} else {
rootDir = new File(rootDir, "igv");
}
return rootDir;
}
// 测试windows下，目录是否可以写入; 事实上，windows在后续版本的权限问题很尴尬 -- 20190101
private static boolean canWrite(File directory) {
// There are bugs in the Windows Java JVM that can cause user directories to be non-writable (target fix is
// Java 7). The only way to know if the directory is writable for sure is to try to write something.
if (Globals.IS_WINDOWS) {
File testFile = null;
try {
testFile = new File(directory, "igv332415dsfjdsklt.testfile");
if (testFile.exists()) {
testFile.delete();
}
testFile.deleteOnExit();
testFile.createNewFile();
return testFile.exists();
} catch (IOException e) {
return false;
} finally {
if (testFile.exists()) {
testFile.delete();
}
}
} else {
return directory.canWrite();
}
}
public static void initializeLog() {
// Create a log file that is ready to have text appended to it
try {
File logFile = getLogFile();
LoggerContext context = LoggerContext.getContext(false);
Configuration configuration = context.getConfiguration();
LoggerConfig rootLogger = configuration.getRootLogger();
rootLogger.removeAppender("IGV_ROLLING_APPENDER");
PatternLayout layout = PatternLayout.newBuilder().withConfiguration(configuration)
.withPattern("%p [%d{ISO8601}] [%F:%L] %m%n").build();
RollingFileAppender appender = RollingFileAppender.newBuilder().withName("IGV_ROLLING_APPENDER")
.setConfiguration(configuration)
.withFileName(logFile.getAbsolutePath()).withAppend(true)
.withFilePattern(getIgvDirectory().getAbsolutePath() + File.pathSeparator + "igv-%i.log")
.withLayout(layout)
.withPolicy(SizeBasedTriggeringPolicy.createPolicy("1000K"))
.build();
appender.start();
configuration.addAppender(appender);
rootLogger.addAppender(appender, Level.ALL, null);
context.updateLoggers();
} catch (IOException e) {
// Can't create log file, just log to console as set in log4j2.xml
log.error("Error creating log file", e);
}
}
}
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