Java/Development Class/OS
Содержание
- 1 Class representing a standard operating system platform, WIN, MAC, or POSIX.
- 2 Class to help determining the OS
- 3 Condition that tests the OS type.
- 4 Get OS
- 5 Get the operating system
- 6 Platform specific functionality.
- 7 Splits apart a OS separator delimited set of paths in a string into multiple Strings.
Class representing a standard operating system platform, WIN, MAC, or POSIX.
<source lang="java">
/*
* OS.java * 2007-04-14 */
//cb.aloe.util; import java.io.File; import java.util.ArrayList; /**
* Class representing a standard operating system platform, WIN, MAC, or POSIX. * * @author Christopher Bach */
public final class OS {
public static final OS WIN = new OS("WIN");
public static final OS MAC = new OS("MAC");
public static final OS POSIX = new OS("POSIX");
private String ourOS = "";
/**
* Private constructor to avert instantiation.
*/
private OS(String os) {
ourOS = os;
}
/**
* Returns a String representing this OS object.
*/
public String toString() {
return ourOS;
}
/**
* Returns the first readable and writable application data folder appropriate
* to this OS.
*/
public static File getAppDataFolder() {
File[] folders = listAppDataFolders();
for (int i = 0; i < folders.length; i++) {
File folder = folders[i];
if (folder.canRead() && folder.canWrite())
return folder;
}
return null;
}
/**
* Returns the first readable and writable user data folder appropriate to
* this OS.
*/
public static File getUserDataFolder() {
File[] folders = listUserDataFolders();
for (int i = 0; i < folders.length; i++) {
File folder = folders[i];
if (folder.canRead() && folder.canWrite())
return folder;
}
return null;
}
/**
* Returns a list of the preferred locations for storing application- specific
* data in descending order.
*/
public static File[] listAppDataFolders() {
String home = System.getProperty("user.home");
ArrayList folders = new ArrayList();
if (isWinNT()) // NT/2000/XP
{
// C:\Documents and Settings\All Users\Application Data
// Surmise that the "All Users" folder will be a child of the
// parent of the current user"s home folder:
File folder = new File(home).getParentFile();
folders.add(new File(folder, "All Users\\Application Data"));
}
else if (isWin9X()) // 95/98/ME
{
// C:\Windows
folders.add(new File(home));
}
else if (isVista()) {
// C:\ProgramData
File folder = new File(home).getParentFile().getParentFile();
folders.add(new File(folder, "ProgramData"));
// C:\Users\Public\AppData
folder = new File(home).getParentFile();
folders.add(new File(folder, "Public\\AppData"));
}
else if (isMac()) {
folders.add(new File("/Library/Application Support"));
}
else {
folders.add(new File("/var/local"));
folders.add(new File("/var"));
}
// folders.addAll(Arrays.asList(listUserDataFolders()));
File[] files = new File[folders.size()];
return (File[]) folders.toArray(files);
}
/**
* Returns a list of the preferred locations for storing user- specific data
* in descending order.
*/
public static File[] listUserDataFolders() {
String home = System.getProperty("user.home");
ArrayList folders = new ArrayList();
if (isWinNT()) {
folders.add(new File(home + "\\Application Data"));
folders.add(new File(home + "\\Local Settings\\Application Data"));
}
else if (isVista()) {
folders.add(new File(home + "\\AppData"));
folders.add(new File(home + "\\AppData\\Local"));
}
else if (isMac()) {
folders.add(new File(home + "/Library/Application Support"));
}
folders.add(new File(home));
File[] files = new File[folders.size()];
return (File[]) folders.toArray(files);
}
/**
* Returns the name of the current operating system platform as listed in the
* System properties.
*/
public static final String getOSName() {
return System.getProperty("os.name");
}
/**
* Returns the OS representing the current operating system platform.
*/
public static final OS getOS() {
String os = System.getProperty("os.name").toLowerCase();
if (os.indexOf("windows") >= 0)
return WIN;
else if (os.indexOf("mac os") >= 0)
return MAC;
else
return POSIX;
}
/**
* Returns whether or not the current operating system is a Microsoft Windows
* platform.
*/
public static final boolean isWindows() {
return getOS() == WIN;
}
/**
* Returns whether or not the current operating system is a Microsoft Windows
* 9X platform (Windows 95/98/ME).
*/
public static boolean isWin9X() {
if (getOS() != WIN)
return false;
String os = getOSName();
if (os.indexOf("95") >= 0 || os.indexOf("98") >= 0 || os.indexOf("me") >= 0)
return true;
return false;
}
/**
* Returns whether or not the current operating system is a Microsoft Windows
* NT platform (Windows NT/2000/2003/XP).
*/
public static boolean isWinNT() {
if (getOS() != WIN)
return false;
String os = getOSName();
if (os.indexOf("NT") >= 0 || os.indexOf("2000") >= 0 || os.indexOf("2003") >= 0
|| os.indexOf("XP") >= 0)
return true;
return false;
}
/**
* Returns whether or not the current operating system is a Microsoft Windows
* Vista platform.
*/
public static boolean isVista() {
if (getOS() != WIN)
return false;
String os = getOSName();
return (os.indexOf("Vista") >= 0);
}
/**
* Returns whether or not the current operating system is the Apple Macintosh
* OS X platform.
*/
public static final boolean isMac() {
return getOS() == MAC;
}
/**
* Returns whether or not the current operating system is a Posix-compatible
* platform (Unix, Linux, Solaris, etc).
*/
public static final boolean isPosix() {
return getOS() == POSIX;
}
}
</source>
Class to help determining the OS
<source lang="java">
/*
* Licensed to the Apache Software Foundation (ASF) under one or more * contributor license agreements. See the NOTICE file distributed with * this work for additional information regarding copyright ownership. * The ASF licenses this file to You under the Apache License, Version 2.0 * (the "License"); you may not use this file except in compliance with * the License. You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */
import java.util.ArrayList; import java.util.HashSet; import java.util.List; import java.util.Locale; import java.util.Set; /**
* Class to help determining the OS. * * @author * @version $Revision: 480428 $ $Date: 2006-11-29 07:15:24 +0100 (Mi, 29 Nov 2006) $ */ final class OsFamily
{
private final String name;
private final OsFamily[] families;
OsFamily(final String name)
{
this.name = name;
families = new OsFamily[0];
}
OsFamily(final String name, final OsFamily[] families)
{
this.name = name;
this.families = families;
}
/**
* Returns the name of this family.
*/
public String getName()
{
return name;
}
/**
* Returns the OS families that this family belongs to.
*/
public OsFamily[] getFamilies()
{
return families;
}
}
</source>
Condition that tests the OS type.
<source lang="java">
/*
* Licensed to the Apache Software Foundation (ASF) under one or more * contributor license agreements. See the NOTICE file distributed with * this work for additional information regarding copyright ownership. * The ASF licenses this file to You under the Apache License, Version 2.0 * (the "License"); you may not use this file except in compliance with * the License. You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. * */
import java.util.Locale; /**
* Condition that tests the OS type. */
public final class OS {
private static final String FAMILY_OS_400 = "os/400";
private static final String FAMILY_Z_OS = "z/os";
private static final String FAMILY_WIN9X = "win9x";
private static final String FAMILY_OPENVMS = "openvms";
private static final String FAMILY_UNIX = "unix";
private static final String FAMILY_TANDEM = "tandem";
private static final String FAMILY_MAC = "mac";
private static final String FAMILY_DOS = "dos";
private static final String FAMILY_NETWARE = "netware";
private static final String FAMILY_OS_2 = "os/2";
private static final String FAMILY_WINDOWS = "windows";
private static final String OS_NAME = System.getProperty("os.name")
.toLowerCase(Locale.US);
private static final String OS_ARCH = System.getProperty("os.arch")
.toLowerCase(Locale.US);
private static final String OS_VERSION = System.getProperty("os.version")
.toLowerCase(Locale.US);
private static final String PATH_SEP = System.getProperty("path.separator");
/**
* Default constructor
*/
private OS() {
}
/**
* Determines if the OS on which Ant is executing matches the given OS
* family. * Possible values:
* -
*
- dos *
- mac *
- netware *
- os/2 *
- tandem *
- unix *
- windows *
- win9x *
- z/os *
- os/400 *
*
* @param family
* the family to check for
* @return true if the OS matches
*/
private static boolean isFamily(final String family) {
return isOs(family, null, null, null);
}
public static boolean isFamilyDOS() {
return isFamily(FAMILY_DOS);
}
public static boolean isFamilyMac() {
return isFamily(FAMILY_MAC);
}
public static boolean isFamilyNetware() {
return isFamily(FAMILY_NETWARE);
}
public static boolean isFamilyOS2() {
return isFamily(FAMILY_OS_2);
}
public static boolean isFamilyTandem() {
return isFamily(FAMILY_TANDEM);
}
public static boolean isFamilyUnix() {
return isFamily(FAMILY_UNIX);
}
public static boolean isFamilyWindows() {
return isFamily(FAMILY_WINDOWS);
}
public static boolean isFamilyWin9x() {
return isFamily(FAMILY_WIN9X);
}
public static boolean isFamilyZOS() {
return isFamily(FAMILY_Z_OS);
}
public static boolean isFamilyOS400() {
return isFamily(FAMILY_OS_400);
}
public static boolean isFamilyOpenVms() {
return isFamily(FAMILY_OPENVMS);
}
/**
* Determines if the OS on which Ant is executing matches the given OS name.
*
* @param name
* the OS name to check for
* @return true if the OS matches
*/
public static boolean isName(final String name) {
return isOs(null, name, null, null);
}
/**
* Determines if the OS on which Ant is executing matches the given OS
* architecture.
*
* @param arch
* the OS architecture to check for
* @return true if the OS matches
*/
public static boolean isArch(final String arch) {
return isOs(null, null, arch, null);
}
/**
* Determines if the OS on which Ant is executing matches the given OS
* version.
*
* @param version
* the OS version to check for
* @return true if the OS matches
*/
public static boolean isVersion(final String version) {
return isOs(null, null, null, version);
}
/**
* Determines if the OS on which Ant is executing matches the given OS
* family, name, architecture and version
*
* @param family
* The OS family
* @param name
* The OS name
* @param arch
* The OS architecture
* @param version
* The OS version
* @return true if the OS matches
*/
public static boolean isOs(final String family, final String name,
final String arch, final String version) {
boolean retValue = false;
if (family != null || name != null || arch != null || version != null) {
boolean isFamily = true;
boolean isName = true;
boolean isArch = true;
boolean isVersion = true;
if (family != null) {
if (family.equals(FAMILY_WINDOWS)) {
isFamily = OS_NAME.indexOf(FAMILY_WINDOWS) > -1;
} else if (family.equals(FAMILY_OS_2)) {
isFamily = OS_NAME.indexOf(FAMILY_OS_2) > -1;
} else if (family.equals(FAMILY_NETWARE)) {
isFamily = OS_NAME.indexOf(FAMILY_NETWARE) > -1;
} else if (family.equals(FAMILY_DOS)) {
isFamily = PATH_SEP.equals(";")
&& !isFamily(FAMILY_NETWARE);
} else if (family.equals(FAMILY_MAC)) {
isFamily = OS_NAME.indexOf(FAMILY_MAC) > -1;
} else if (family.equals(FAMILY_TANDEM)) {
isFamily = OS_NAME.indexOf("nonstop_kernel") > -1;
} else if (family.equals(FAMILY_UNIX)) {
isFamily = PATH_SEP.equals(":")
&& !isFamily(FAMILY_OPENVMS)
&& (!isFamily(FAMILY_MAC) || OS_NAME.endsWith("x"));
} else if (family.equals(FAMILY_WIN9X)) {
isFamily = isFamily(FAMILY_WINDOWS)
&& (OS_NAME.indexOf("95") >= 0
|| OS_NAME.indexOf("98") >= 0
|| OS_NAME.indexOf("me") >= 0 || OS_NAME
.indexOf("ce") >= 0);
} else if (family.equals(FAMILY_Z_OS)) {
isFamily = OS_NAME.indexOf(FAMILY_Z_OS) > -1
|| OS_NAME.indexOf("os/390") > -1;
} else if (family.equals(FAMILY_OS_400)) {
isFamily = OS_NAME.indexOf(FAMILY_OS_400) > -1;
} else if (family.equals(FAMILY_OPENVMS)) {
isFamily = OS_NAME.indexOf(FAMILY_OPENVMS) > -1;
} else {
throw new IllegalArgumentException(
"Don\"t know how to detect os family \"" + family
+ "\"");
}
}
if (name != null) {
isName = name.equals(OS_NAME);
}
if (arch != null) {
isArch = arch.equals(OS_ARCH);
}
if (version != null) {
isVersion = version.equals(OS_VERSION);
}
retValue = isFamily && isName && isArch && isVersion;
}
return retValue;
}
}
</source>
Get OS
<source lang="java">
/*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
*
* Copyright 1997-2007 Sun Microsystems, Inc. All rights reserved.
*
* The contents of this file are subject to the terms of either the GNU
* General Public License Version 2 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 https://glassfish.dev.java.net/public/CDDL+GPL.html
* or glassfish/bootstrap/legal/LICENSE.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 file at glassfish/bootstrap/legal/LICENSE.txt.
* Sun designates this particular file as subject to the "Classpath" exception
* as provided by Sun in the GPL Version 2 section of the License file that
* accompanied this code. 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]"
*
* Contributor(s):
*
* If you wish your version of this file to be governed by only the CDDL or
* only the GPL Version 2, indicate your decision by adding "[Contributor]
* elects to include this software in this distribution under the [CDDL or GPL
* Version 2] license." If you don"t 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 2 or to extend the choice of license to
* its licensees as provided above. However, if you add GPL Version 2 code
* and therefore, elected the GPL Version 2 license, then the option applies
* only if the new code is made subject to such option by the copyright
* holder.
*/
/*
* OS.java * * Created on December 8, 2001, 5:48 PM */
import java.io.File; /**
* * @author bnevins * @version */
public class OS {
private OS()
{
}
///////////////////////////////////////////////////////////////////////////
public static boolean isWindows()
{
return File.separatorChar == "\\";
}
///////////////////////////////////////////////////////////////////////////
public static boolean isUNIX()
{
return File.separatorChar == "/";
}
///////////////////////////////////////////////////////////////////////////
public static boolean isUnix()
{
// convenience method...
return isUNIX();
}
///////////////////////////////////////////////////////////////////////////
public static boolean isSun()
{
return isName("sun");
}
///////////////////////////////////////////////////////////////////////////
public static boolean isSolaris10()
{
return isSun() && isVersion("5.10");
}
///////////////////////////////////////////////////////////////////////////
public static boolean isSunSparc()
{
return isName("sun") && isArch("sparc");
}
///////////////////////////////////////////////////////////////////////////
public static boolean isSunX86()
{
return isName("sun") && isArch("x86");
}
///////////////////////////////////////////////////////////////////////////
public static boolean isLinux()
{
return isName("linux");
}
///////////////////////////////////////////////////////////////////////////
public static boolean isDarwin()
{
return isName("Mac OS X");
}
///////////////////////////////////////////////////////////////////////////
public static boolean isWindowsForSure()
{
return isName("windows") && isWindows();
}
///////////////////////////////////////////////////////////////////////////
// There are 10 known Linux versions!
///////////////////////////////////////////////////////////////////////////
public static boolean isDebianLinux()
{
return isLinux() && new File("/etc/debian_version").exists();
}
///////////////////////////////////////////////////////////////////////////
public static boolean isFedoraLinux()
{
return isLinux() && new File("/etc/fedora-release").exists();
}
///////////////////////////////////////////////////////////////////////////
public static boolean isGentooLinux()
{
return isLinux() && new File("/etc/gentoo-release").exists();
}
///////////////////////////////////////////////////////////////////////////
public static boolean isKnoppixLinux()
{
return isLinux() && new File("/etc/knoppix_version").exists();
}
///////////////////////////////////////////////////////////////////////////
public static boolean isMandrakeLinux()
{
return isLinux() && new File("/etc/mandrake-release").exists();
}
///////////////////////////////////////////////////////////////////////////
public static boolean isMandrivaLinux()
{
return isLinux() && new File("/etc/mandriva-release").exists();
}
///////////////////////////////////////////////////////////////////////////
public static boolean isRedHatLinux()
{
return isLinux() && new File("/etc/redhat-release").exists();
}
///////////////////////////////////////////////////////////////////////////
public static boolean isSlackwareLinux()
{
return isLinux() && new File("/etc/slackware-version").exists();
}
///////////////////////////////////////////////////////////////////////////
public static boolean isSuSELinux()
{
return isLinux() && new File("/etc/SuSE-release").exists();
}
///////////////////////////////////////////////////////////////////////////
public static boolean isUbuntuLinux()
{
return isLinux() && new File("/etc/lsb-release").exists();
}
///////////////////////////////////////////////////////////////////////////
private static boolean isArch(String name)
{
String archname = System.getProperty("os.arch");
if(archname == null || archname.length() <= 0)
return false;
// case insensitive compare...
archname= archname.toLowerCase();
name= name.toLowerCase();
if(archname.indexOf(name) >= 0)
return true;
return false;
}
///////////////////////////////////////////////////////////////////////////
private static boolean isName(String name)
{
String osname = System.getProperty("os.name");
if(osname == null || osname.length() <= 0)
return false;
// case insensitive compare...
osname = osname.toLowerCase();
name = name.toLowerCase();
if(osname.indexOf(name) >= 0)
return true;
return false;
}
///////////////////////////////////////////////////////////////////////////
private static boolean isVersion(String version)
{
String osversion = System.getProperty("os.version");
if(osversion == null || osversion.length() <= 0 || version == null || version.length() <= 0 )
return false;
if(osversion.equals(version))
return true;
return false;
}
///////////////////////////////////////////////////////////////////////////
public static final String WINDOWS_BATCH_FILE_EXTENSION = ".bat";
/**
* @param args the command line arguments
*/
public static void main(String args[])
{
System.out.println("os.version = " + System.getProperty("os.version"));
System.out.println("os.name = " + System.getProperty("os.name"));
System.out.println("os.arch = " + System.getProperty("os.arch"));
System.out.println("isUNIX() returned: " + isUNIX());
System.out.println("isWindows() returned: " + isWindows());
System.out.println("isWindowsForSure() returned: " + isWindowsForSure());
System.out.println("isSun() returned: " + isSun());
System.out.println("isLinux() returned: " + isLinux());
System.out.println("isDebianLinux() returned: " + isDebianLinux());
System.out.println("isFedoraLinux() returned: " + isFedoraLinux());
System.out.println("isGentooLinux() returned: " + isGentooLinux());
System.out.println("isKnoppixLinux() returned: " + isKnoppixLinux());
System.out.println("isMandrakeLinux() returned: " + isMandrakeLinux());
System.out.println("isMandrivaLinux() returned: " + isMandrivaLinux());
System.out.println("isRedHatLinux() returned: " + isRedHatLinux());
System.out.println("isSlackwareLinux() returned: " + isSlackwareLinux());
System.out.println("isSuSELinux() returned: " + isSuSELinux());
System.out.println("isUbuntuLinux() returned: " + isUbuntuLinux());
System.out.println("isSunX86() returned: " + isSunX86());
System.out.println("isSunSparc() returned: " + isSunSparc());
System.out.println("isDarwin() returned: " + isDarwin());
System.out.println("isSolaris10() returned: " + isSolaris10());
}
}
</source>
Get the operating system
<source lang="java">
/*
* $Id: Utilities.java,v 1.11 2008/10/14 22:31:46 rah003 Exp $ * * Copyright 2006 Sun Microsystems, Inc., 4150 Network Circle, * Santa Clara, California 95054, U.S.A. All rights reserved. * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * This library 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 * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */
import java.awt.ruponent; import java.awt.GraphicsConfiguration; import java.awt.GraphicsEnvironment; import java.awt.Insets; import java.awt.KeyboardFocusManager; import java.awt.Rectangle; import java.awt.Toolkit; import java.awt.Window; import java.awt.event.KeyEvent; import java.lang.ref.Reference; import java.lang.ref.SoftReference; import java.lang.reflect.Field; import java.lang.reflect.Modifier; import java.text.BreakIterator; import java.util.ArrayList; import java.util.HashMap; import java.util.Locale; import java.util.NoSuchElementException; import java.util.StringTokenizer; import java.util.logging.Level; import java.util.logging.Logger; import javax.swing.KeyStroke; import javax.swing.SwingUtilities; /**
* Contribution from NetBeans: Issue #319-swingx.*
*
* PENDING: need to reconcile with OS, JVM... added as-is because needed the
* shortcut handling to fix #
*
* @author apple
*/
public class Utilities {
private Utilities() {
}
private static final int CTRL_WILDCARD_MASK = 32768;
private static final int ALT_WILDCARD_MASK = CTRL_WILDCARD_MASK * 2;
/** Operating system is Windows NT. */
public static final int OS_WINNT = 1 << 0;
/** Operating system is Windows 95. */
public static final int OS_WIN95 = OS_WINNT << 1;
/** Operating system is Windows 98. */
public static final int OS_WIN98 = OS_WIN95 << 1;
/** Operating system is Solaris. */
public static final int OS_SOLARIS = OS_WIN98 << 1;
/** Operating system is Linux. */
public static final int OS_LINUX = OS_SOLARIS << 1;
/** Operating system is HP-UX. */
public static final int OS_HP = OS_LINUX << 1;
/** Operating system is IBM AIX. */
public static final int OS_AIX = OS_HP << 1;
/** Operating system is SGI IRIX. */
public static final int OS_IRIX = OS_AIX << 1;
/** Operating system is Sun OS. */
public static final int OS_SUNOS = OS_IRIX << 1;
/** Operating system is Compaq TRU64 Unix */
public static final int OS_TRU64 = OS_SUNOS << 1;
/** Operating system is OS/2. */
public static final int OS_OS2 = OS_TRU64 << 2;
/** Operating system is Mac. */
public static final int OS_MAC = OS_OS2 << 1;
/** Operating system is Windows 2000. */
public static final int OS_WIN2000 = OS_MAC << 1;
/** Operating system is Compaq OpenVMS */
public static final int OS_VMS = OS_WIN2000 << 1;
/**
*Operating system is one of the Windows variants but we don"t know which
*one it is
*/
public static final int OS_WIN_OTHER = OS_VMS << 1;
/** Operating system is unknown. */
public static final int OS_OTHER = OS_WIN_OTHER << 1;
/** Operating system is FreeBSD
* @since 4.50
*/
public static final int OS_FREEBSD = OS_OTHER << 1;
/** A mask for Windows platforms. */
public static final int OS_WINDOWS_MASK = OS_WINNT | OS_WIN95 | OS_WIN98 | OS_WIN2000 | OS_WIN_OTHER;
/** A mask for Unix platforms. */
public static final int OS_UNIX_MASK = OS_SOLARIS | OS_LINUX | OS_HP | OS_AIX | OS_IRIX | OS_SUNOS | OS_TRU64 |
OS_MAC | OS_FREEBSD;
/** A height of the windows"s taskbar */
public static final int TYPICAL_WINDOWS_TASKBAR_HEIGHT = 27;
/** A height of the Mac OS X"s menu */
private static final int TYPICAL_MACOSX_MENU_HEIGHT = 24;
private static int operatingSystem = -1;
/** reference to map that maps allowed key names to their values (String, Integer)
and reference to map for mapping of values to their names */
private static Reference<Object> namesAndValues;
/** Get the operating system.
* @return one of the OS_* constants (such as {@link #OS_WINNT})
*/
public static int getOperatingSystem() {
if (operatingSystem == -1) {
String osName = System.getProperty("os.name");
if ("Windows NT".equals(osName)) { // NOI18N
operatingSystem = OS_WINNT;
} else if ("Windows 95".equals(osName)) { // NOI18N
operatingSystem = OS_WIN95;
} else if ("Windows 98".equals(osName)) { // NOI18N
operatingSystem = OS_WIN98;
} else if ("Windows 2000".equals(osName)) { // NOI18N
operatingSystem = OS_WIN2000;
} else if (osName.startsWith("Windows ")) { // NOI18N
operatingSystem = OS_WIN_OTHER;
} else if ("Solaris".equals(osName)) { // NOI18N
operatingSystem = OS_SOLARIS;
} else if (osName.startsWith("SunOS")) { // NOI18N
operatingSystem = OS_SOLARIS;
}
// JDK 1.4 b2 defines os.name for me as "Redhat Linux" -jglick
else if (osName.endsWith("Linux")) { // NOI18N
operatingSystem = OS_LINUX;
} else if ("HP-UX".equals(osName)) { // NOI18N
operatingSystem = OS_HP;
} else if ("AIX".equals(osName)) { // NOI18N
operatingSystem = OS_AIX;
} else if ("Irix".equals(osName)) { // NOI18N
operatingSystem = OS_IRIX;
} else if ("SunOS".equals(osName)) { // NOI18N
operatingSystem = OS_SUNOS;
} else if ("Digital UNIX".equals(osName)) { // NOI18N
operatingSystem = OS_TRU64;
} else if ("OS/2".equals(osName)) { // NOI18N
operatingSystem = OS_OS2;
} else if ("OpenVMS".equals(osName)) { // NOI18N
operatingSystem = OS_VMS;
} else if (osName.equals("Mac OS X")) { // NOI18N
operatingSystem = OS_MAC;
} else if (osName.startsWith("Darwin")) { // NOI18N
operatingSystem = OS_MAC;
} else if (osName.toLowerCase(Locale.US).startsWith("freebsd")) { // NOI18N
operatingSystem = OS_FREEBSD;
} else {
operatingSystem = OS_OTHER;
}
}
return operatingSystem;
}
/** Test whether NetBeans is running on some variant of Windows.
* @return true if Windows, false if some other manner of operating system
*/
public static boolean isWindows() {
return (getOperatingSystem() & OS_WINDOWS_MASK) != 0;
}
/** Test whether NetBeans is running on some variant of Unix.
* Linux is included as well as the commercial vendors, and Mac OS X.
* @return true some sort of Unix, false if some other manner of operating system
*/
public static boolean isUnix() {
return (getOperatingSystem() & OS_UNIX_MASK) != 0;
}
/** Test whether the operating system supports icons on frames (windows).
* @return true if it does not
*
*/
public static boolean isLargeFrameIcons() {
return (getOperatingSystem() == OS_SOLARIS) || (getOperatingSystem() == OS_HP);
}
/**
* Finds out the monitor where the user currently has the input focus.
* This method is usually used to help the client code to figure out on
* which monitor it should place newly created windows/frames/dialogs.
*
* @return the GraphicsConfiguration of the monitor which currently has the
* input focus
*/
private static GraphicsConfiguration getCurrentGraphicsConfiguration() {
Component focusOwner = KeyboardFocusManager.getCurrentKeyboardFocusManager().getFocusOwner();
if (focusOwner != null) {
Window w = SwingUtilities.getWindowAncestor(focusOwner);
if (w != null) {
return w.getGraphicsConfiguration();
}
}
return GraphicsEnvironment.getLocalGraphicsEnvironment().getDefaultScreenDevice().getDefaultConfiguration();
}
/**
* Returns the usable area of the screen where applications can place its
* windows. The method subtracts from the screen the area of taskbars,
* system menus and the like. The screen this method applies to is the one
* which is considered current, ussually the one where the current input
* focus is.
*
* @return the rectangle of the screen where one can place windows
*
* @since 2.5
*/
public static Rectangle getUsableScreenBounds() {
return getUsableScreenBounds(getCurrentGraphicsConfiguration());
}
/**
* Returns the usable area of the screen where applications can place its
* windows. The method subtracts from the screen the area of taskbars,
* system menus and the like.
*
* @param gconf the GraphicsConfiguration of the monitor
* @return the rectangle of the screen where one can place windows
*
* @since 2.5
*/
public static Rectangle getUsableScreenBounds(GraphicsConfiguration gconf) {
if (gconf == null) {
gconf = GraphicsEnvironment.getLocalGraphicsEnvironment().getDefaultScreenDevice().getDefaultConfiguration();
}
Rectangle bounds = new Rectangle(gconf.getBounds());
String str;
str = System.getProperty("netbeans.screen.insets"); // NOI18N
if (str != null) {
StringTokenizer st = new StringTokenizer(str, ", "); // NOI18N
if (st.countTokens() == 4) {
try {
bounds.y = Integer.parseInt(st.nextToken());
bounds.x = Integer.parseInt(st.nextToken());
bounds.height -= (bounds.y + Integer.parseInt(st.nextToken()));
bounds.width -= (bounds.x + Integer.parseInt(st.nextToken()));
} catch (NumberFormatException ex) {
Logger.getAnonymousLogger().log(Level.WARNING, null, ex);
}
}
return bounds;
}
str = System.getProperty("netbeans.taskbar.height"); // NOI18N
if (str != null) {
bounds.height -= Integer.getInteger(str, 0).intValue();
return bounds;
}
try {
Toolkit toolkit = Toolkit.getDefaultToolkit();
Insets insets = toolkit.getScreenInsets(gconf);
bounds.y += insets.top;
bounds.x += insets.left;
bounds.height -= (insets.top + insets.bottom);
bounds.width -= (insets.left + insets.right);
} catch (Exception ex) {
Logger.getAnonymousLogger().log(Level.WARNING, null, ex);
}
return bounds;
}
/** Initialization of the names and values
* @return array of two hashmaps first maps
* allowed key names to their values (String, Integer)
* and second
* hashtable for mapping of values to their names (Integer, String)
*/
private static synchronized HashMap[] initNameAndValues() {
if (namesAndValues != null) {
HashMap[] arr = (HashMap[]) namesAndValues.get();
if (arr != null) {
return arr;
}
}
Field[] fields;
// JW - fix Issue #353-swingx: play nicer inside sandbox.
try {
fields = KeyEvent.class.getDeclaredFields();
// fields = KeyEvent.class.getFields();
} catch (SecurityException e) {
// JW: need to do better? What are the use-cases where we don"t have
// any access to the fields?
fields = new Field[0];
}
HashMap<String,Integer> names = new HashMap<String,Integer>(((fields.length * 4) / 3) + 5, 0.75f);
HashMap<Integer,String> values = new HashMap<Integer,String>(((fields.length * 4) / 3) + 5, 0.75f);
for (int i = 0; i < fields.length; i++) {
if (Modifier.isStatic(fields[i].getModifiers())) {
String name = fields[i].getName();
if (name.startsWith("VK_")) { // NOI18N
// exclude VK
name = name.substring(3);
try {
int numb = fields[i].getInt(null);
Integer value = new Integer(numb);
names.put(name, value);
values.put(value, name);
} catch (IllegalArgumentException ex) {
} catch (IllegalAccessException ex) {
}
}
}
}
if (names.get("CONTEXT_MENU") == null) { // NOI18N
Integer n = new Integer(0x20C);
names.put("CONTEXT_MENU", n); // NOI18N
values.put(n, "CONTEXT_MENU"); // NOI18N
n = new Integer(0x20D);
names.put("WINDOWS", n); // NOI18N
values.put(n, "WINDOWS"); // NOI18N
}
HashMap[] arr = { names, values };
namesAndValues = new SoftReference<Object>(arr);
return arr;
}
/** Converts a Swing key stroke descriptor to a familiar Emacs-like name.
* @param stroke key description
* @return name of the key (e.g. CS-F1 for control-shift-function key one)
* @see #stringToKey
*/
public static String keyToString(KeyStroke stroke) {
StringBuffer sb = new StringBuffer();
// add modifiers that must be pressed
if (addModifiers(sb, stroke.getModifiers())) {
sb.append("-");
}
HashMap[] namesAndValues = initNameAndValues();
String c = (String) namesAndValues[1].get(new Integer(stroke.getKeyCode()));
if (c == null) {
sb.append(stroke.getKeyChar());
} else {
sb.append(c);
}
return sb.toString();
}
/** Construct a new key description from a given universal string
* description.
* Provides mapping between Emacs-like textual key descriptions and the
* KeyStroke object used in Swing.
* <P>
* This format has following form:
* <P>[C][A][S][M]-identifier
* <p>Where:
*
-
*
-
Cstands for the Control key * -
Astands for the Alt key * -
Sstands for the Shift key * -
Mstands for the Meta key *
* The format also supports two wildcard codes, to support differences in * platforms. These are the preferred choices for registering keystrokes, * since platform conflicts will automatically be handled:*
-
*
-
Dstands for the default menu accelerator - the Control * key on most platforms, the Command (meta) key on Macintosh
* -
Ostands for the alternate accelerator - the Alt key on * most platforms, the Ctrl key on Macintosh (Macintosh uses Alt as a * secondary shift key for composing international characters - if you bind * Alt-8 to an action, a mac user with a French keyboard will not be able * to type the[character, which is a significant handicap
*
* If you use the wildcard characters, and specify a key which will conflict * with keys the operating system consumes, it will be mapped to whichever * choice can work - for example, on Macintosh, Command-Q is always consumed * by the operating system, soD-Qwill always map to Control-Q. * <p> * Every modifier before the hyphen must be pressed. * identifier can be any text constant from {@link KeyEvent} but * without the leadingVK_characters. So {@link KeyEvent#VK_ENTER} is described as *ENTER. * * @param s the string with the description of the key * @return key description object, ornullif the string does not represent any valid key */ public static KeyStroke stringToKey(String s) { StringTokenizer st = new StringTokenizer(s.toUpperCase(Locale.ENGLISH), "-", true); // NOI18N int needed = 0; HashMap names = initNameAndValues()[0]; int lastModif = -1; try { for (;;) { String el = st.nextToken(); // required key if (el.equals("-")) { // NOI18N if (lastModif != -1) { needed |= lastModif; lastModif = -1; } continue; } // if there is more elements if (st.hasMoreElements()) { // the text should describe modifiers lastModif = readModifiers(el); } else { // last text must be the key code Integer i = (Integer) names.get(el); boolean wildcard = (needed & CTRL_WILDCARD_MASK) != 0; //Strip out the explicit mask - KeyStroke won"t know //what to do with it needed = needed & ~CTRL_WILDCARD_MASK; boolean macAlt = (needed & ALT_WILDCARD_MASK) != 0; needed = needed & ~ALT_WILDCARD_MASK; if (i != null) { //#26854 - Default accelerator should be Command on mac if (wildcard) { needed |= getMenuShortCutKeyMask(); if ((getOperatingSystem() & OS_MAC) != 0) { if (!usableKeyOnMac(i.intValue(), needed)) { needed &= ~getMenuShortCutKeyMask(); needed |= KeyEvent.CTRL_MASK; } } } if (macAlt) { if (getOperatingSystem() == OS_MAC) { needed |= KeyEvent.CTRL_MASK; } else { needed |= KeyEvent.ALT_MASK; } } return KeyStroke.getKeyStroke(i.intValue(), needed); } else { return null; } } } } catch (NoSuchElementException ex) { return null; } } /** * need to guard against headlessExceptions when testing. * @return the acceletor mask for shortcuts. */ private static int getMenuShortCutKeyMask() { if (GraphicsEnvironment.isHeadless()) { return ((getOperatingSystem() & OS_MAC) != 0) ? KeyEvent.META_MASK : KeyEvent.CTRL_MASK; } return Toolkit.getDefaultToolkit().getMenuShortcutKeyMask(); } private static boolean usableKeyOnMac(int key, int mask) { //All permutations fail for Q except ctrl if (key == KeyEvent.VK_Q) { return false; } boolean isMeta = ((mask & KeyEvent.META_MASK) != 0) || ((mask & KeyEvent.CTRL_DOWN_MASK) != 0); boolean isAlt = ((mask & KeyEvent.ALT_MASK) != 0) || ((mask & KeyEvent.ALT_DOWN_MASK) != 0); boolean isOnlyMeta = isMeta && ((mask & ~(KeyEvent.META_DOWN_MASK | KeyEvent.META_MASK)) == 0); //Mac OS consumes keys Command+ these keys - the app will never see //them, so CTRL should not be remapped for these if (isOnlyMeta) { return (key != KeyEvent.VK_H) && (key != KeyEvent.VK_SPACE) && (key != KeyEvent.VK_TAB); } else return !((key == KeyEvent.VK_D) && isMeta && isAlt); } /** Convert a space-separated list of Emacs-like key binding names to a list of Swing key strokes. * @param s the string with keys * @return array of key strokes, ornullif the string description is not valid * @see #stringToKey */ public static KeyStroke[] stringToKeys(String s) { StringTokenizer st = new StringTokenizer(s.toUpperCase(Locale.ENGLISH), " "); // NOI18N ArrayList<KeyStroke> arr = new ArrayList<KeyStroke>(); while (st.hasMoreElements()) { s = st.nextToken(); KeyStroke k = stringToKey(s); if (k == null) { return null; } arr.add(k); } return arr.toArray(new KeyStroke[arr.size()]); } /** Adds characters for modifiers to the buffer. * @param buf buffer to add to * @param modif modifiers to add (KeyEvent.XXX_MASK) * @return true if something has been added */ private static boolean addModifiers(StringBuffer buf, int modif) { boolean b = false; if ((modif & KeyEvent.CTRL_MASK) != 0) { buf.append("C"); // NOI18N b = true; } if ((modif & KeyEvent.ALT_MASK) != 0) { buf.append("A"); // NOI18N b = true; } if ((modif & KeyEvent.SHIFT_MASK) != 0) { buf.append("S"); // NOI18N b = true; } if ((modif & KeyEvent.META_MASK) != 0) { buf.append("M"); // NOI18N b = true; } if ((modif & CTRL_WILDCARD_MASK) != 0) { buf.append("D"); b = true; } if ((modif & ALT_WILDCARD_MASK) != 0) { buf.append("O"); b = true; } return b; } /** Reads for modifiers and creates integer with required mask. * @param s string with modifiers * @return integer with mask * @exception NoSuchElementException if some letter is not modifier */ private static int readModifiers(String s) throws NoSuchElementException { int m = 0; for (int i = 0; i < s.length(); i++) { switch (s.charAt(i)) { case "C": m |= KeyEvent.CTRL_MASK; break; case "A": m |= KeyEvent.ALT_MASK; break; case "M": m |= KeyEvent.META_MASK; break; case "S": m |= KeyEvent.SHIFT_MASK; break; case "D": m |= CTRL_WILDCARD_MASK; break; case "O": m |= ALT_WILDCARD_MASK; break; default: throw new NoSuchElementException(s); } } return m; }
}
</source>
Platform specific functionality.
<source lang="java">
import java.awt.Frame; import java.lang.reflect.Method; /**
* Platform specific functionality. * * @author * @version $Id: Platform.java 582434 2007-10-06 02:11:51Z cam $ */
public abstract class Platform {
/**
* Whether we are running on Mac OS X.
*/
public static boolean isOSX =
System.getProperty("os.name").equals("Mac OS X");
/**
* Whether we are running on JRE 1.3.
*/
public static boolean isJRE13 =
System.getProperty("java.version").startsWith("1.3");
/**
* Unmaximizes the specified Frame.
*/
public static void unmaximize(Frame f) {
if (!isJRE13) {
try {
Method m1 =
Frame.class.getMethod("getExtendedState", (Class[]) null);
Method m2 =
Frame.class.getMethod("setExtendedState",
new Class[] { Integer.TYPE });
int i = ((Integer) m1.invoke(f, (Object[]) null)).intValue();
m2.invoke(f, new Object[] { new Integer(i & ~6) });
} catch (java.lang.reflect.InvocationTargetException ite) {
} catch (NoSuchMethodException nsme) {
} catch (IllegalAccessException iae) {
}
}
}
}
</source>
Splits apart a OS separator delimited set of paths in a string into multiple Strings.
<source lang="java">
import java.io.File; import java.io.FileFilter; import java.util.ArrayList; import java.util.List; import java.util.regex.Pattern; import java.util.regex.PatternSyntaxException; /*
* Licensed to the Apache Software Foundation (ASF) under one * or more contributor license agreements. See the NOTICE file * distributed with this work for additional information * regarding copyright ownership. The ASF licenses this file * to you under the Apache License, Version 2.0 (the * "License"); you may not use this file except in compliance * with the License. You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, * software distributed under the License is distributed on an * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY * KIND, either express or implied. See the License for the * specific language governing permissions and limitations * under the License. * */
/**
* Various string manipulation methods that are more efficient then chaining * string operations: all is done in the same buffer without creating a bunch of * string objects. * * @author */
public class Main {
/**
* Splits apart a OS separator delimited set of paths in a string into
* multiple Strings. File component path strings are returned within a List
* in the order they are found in the composite path string. Optionally, a
* file filter can be used to filter out path strings to control the
* components returned. If the filter is null all path components are
* returned.
*
* @param paths
* a set of paths delimited using the OS path separator
* @param filter
* a FileFilter used to filter the return set
* @return the filter accepted path component Strings in the order
* encountered
*/
public static final List getPaths( String paths, FileFilter filter )
{
int start = 0;
int stop = -1;
String path = null;
ArrayList<String> list = new ArrayList<String>();
// Abandon with no values if paths string is null
if ( paths == null || paths.trim().equals( "" ) )
{
return list;
}
final int max = paths.length() - 1;
// Loop spliting string using OS path separator: terminate
// when the start index is at the end of the paths string.
while ( start < max )
{
stop = paths.indexOf( File.pathSeparatorChar, start );
// The is no file sep between the start and the end of the string
if ( stop == -1 )
{
// If we have a trailing path remaining without ending separator
if ( start < max )
{
// Last path is everything from start to the string"s end
path = paths.substring( start );
// Protect against consecutive separators side by side
if ( !path.trim().equals( "" ) )
{
// If filter is null add path, if it is not null add the
// path only if the filter accepts the path component.
if ( filter == null || filter.accept( new File( path ) ) )
{
list.add( path );
}
}
}
break; // Exit loop no more path components left!
}
// There is a separator between start and the end if we got here!
// start index is now at 0 or the index of last separator + 1
// stop index is now at next separator in front of start index
path = paths.substring( start, stop );
// Protect against consecutive separators side by side
if ( !path.trim().equals( "" ) )
{
// If filter is null add path, if it is not null add the path
// only if the filter accepts the path component.
if ( filter == null || filter.accept( new File( path ) ) )
{
list.add( path );
}
}
// Advance start index past separator to start of next path comp
start = stop + 1;
}
return list;
}
}
</source>
