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/*
* 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.
*/
package org.apache.maven.shared.utils;
import java.util.Collections;
import java.util.HashSet;
import java.util.Locale;
import java.util.Set;
/**
* <p>Condition that tests the OS type.</p>
* <p>This class got copied over from Apache ANT.
* Even the version from plexus-utils was
* only an ANT fork!
* The last time it got copied was on 2011-08-12</p>
* <p>When merging changes please take care of the special
* OS_FAMILY handling in this version of Os.java!</p>
*
* @author Stefan Bodewig
* @author Magesh Umasankar
* @author Brian Fox
* @author Mark Struberg
*
*/
public class Os {
/**
* The OS Name.
*/
public static final String OS_NAME = System.getProperty("os.name").toLowerCase(Locale.ENGLISH);
/**
* The OA architecture.
*/
public static final String OS_ARCH = System.getProperty("os.arch").toLowerCase(Locale.ENGLISH);
/**
* The OS version.
*/
public static final String OS_VERSION = System.getProperty("os.version").toLowerCase(Locale.ENGLISH);
/**
* The path separator.
*/
public static final String PATH_SEP = System.getProperty("path.separator");
/**
* system line separator , e.g. &quot;\n&quot; on unixoid systems and &quot;\r\n&quot; on Windows
*/
public static final String LINE_SEP = System.getProperty("line.separator");
/**
* OS Family
*/
public static final String OS_FAMILY = getOsFamily();
// store the valid families
private static final Set<String> VALID_FAMILIES = getValidFamilies();
/**
* OS family to look for
*/
private String family;
/**
* OS family that can be tested for. {@value}
*/
public static final String FAMILY_WINDOWS = "windows";
/**
* OS family that can be tested for. {@value}
*/
public static final String FAMILY_WIN9X = "win9x";
/**
* OS family that can be tested for. {@value}
*/
public static final String FAMILY_NT = "winnt";
/**
* OS family that can be tested for. {@value}
*/
public static final String FAMILY_OS2 = "os/2";
/**
* OS family that can be tested for. {@value}
*/
public static final String FAMILY_NETWARE = "netware";
/**
* OS family that can be tested for. {@value}
*/
public static final String FAMILY_DOS = "dos";
/**
* OS family that can be tested for. {@value}
*/
public static final String FAMILY_MAC = "mac";
/**
* OS family that can be tested for. {@value}
*/
public static final String FAMILY_TANDEM = "tandem";
/**
* OS family that can be tested for. {@value}
*/
public static final String FAMILY_UNIX = "unix";
/**
* OS family that can be tested for. {@value}
*/
public static final String FAMILY_OPENVMS = "openvms";
/**
* OS family that can be tested for. {@value}
*/
public static final String FAMILY_ZOS = "z/os";
/**
* OS family that can be tested for. {@value}
*/
public static final String FAMILY_OS400 = "os/400";
/**
* OpenJDK is reported to call MacOS X "Darwin"
*
* @see <a href="https://issues.apache.org/bugzilla/show_bug.cgi?id=44889">bugzilla issue</a>
* @see <a href="https://issues.apache.org/jira/browse/HADOOP-3318">HADOOP-3318</a>
*/
private static final String DARWIN = "darwin";
/**
* The set of valid families. This methods initializes the set until
* VALID_FAMILIES constant is set.
* @return The set of families.
*/
public static Set<String> getValidFamilies() {
if (VALID_FAMILIES != null) {
return VALID_FAMILIES;
}
Set<String> valid = new HashSet<String>();
valid.add(FAMILY_DOS);
valid.add(FAMILY_MAC);
valid.add(FAMILY_NETWARE);
valid.add(FAMILY_NT);
valid.add(FAMILY_OPENVMS);
valid.add(FAMILY_OS2);
valid.add(FAMILY_OS400);
valid.add(FAMILY_TANDEM);
valid.add(FAMILY_UNIX);
valid.add(FAMILY_WIN9X);
valid.add(FAMILY_WINDOWS);
valid.add(FAMILY_ZOS);
return Collections.unmodifiableSet(valid);
}
/**
* Default constructor
*/
public Os() {
// default
}
/**
* Constructor that sets the family attribute
*
* @param family a String value
*/
public Os(String family) {
setFamily(family);
}
/**
* Sets the desired OS family type
*
* @param f The OS family type desired<br />
* Possible values:<br />
* <ul>
* <li>dos</li>
* <li>mac</li>
* <li>netware</li>
* <li>os/2</li>
* <li>tandem</li>
* <li>unix</li>
* <li>windows</li>
* <li>win9x</li>
* <li>z/os</li>
* <li>os/400</li>
* </ul>
*/
private void setFamily(String f) {
family = f.toLowerCase(Locale.ENGLISH);
}
/**
* Determines if the OS on which Ant is executing matches the type of
* that set in setFamily.
*
* @return true if the os matches.
* @see Os#setFamily(String)
*/
boolean eval() {
return isOs(family, null, null, null);
}
/**
* Determines if the OS on which Ant is executing matches the
* given OS family.
*
* @param family the family to check for
* @return true if the OS matches
*
*/
public static boolean isFamily(String family) {
return isOs(family, null, null, null);
}
/**
* 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(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(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(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
*
*/
private static boolean isOs(String family, String name, String arch, 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) {
// windows probing logic relies on the word 'windows' in
// the OS
boolean isWindows = OS_NAME.contains(FAMILY_WINDOWS);
boolean is9x = false;
boolean isNT = false;
if (isWindows) {
// there are only four 9x platforms that we look for
is9x = (OS_NAME.contains("95")
|| OS_NAME.contains("98")
|| OS_NAME.contains("me")
// wince isn't really 9x, but crippled enough to
// be a muchness. Ant doesnt run on CE, anyway.
|| OS_NAME.contains("ce"));
isNT = !is9x;
}
if (family.equals(FAMILY_WINDOWS)) {
isFamily = isWindows;
} else if (family.equals(FAMILY_WIN9X)) {
isFamily = isWindows && is9x;
} else if (family.equals(FAMILY_NT)) {
isFamily = isWindows && isNT;
} else if (family.equals(FAMILY_OS2)) {
isFamily = OS_NAME.contains(FAMILY_OS2);
} else if (family.equals(FAMILY_NETWARE)) {
isFamily = OS_NAME.contains(FAMILY_NETWARE);
} else if (family.equals(FAMILY_DOS)) {
isFamily = PATH_SEP.equals(";") && !isFamily(FAMILY_NETWARE);
} else if (family.equals(FAMILY_MAC)) {
isFamily = OS_NAME.contains(FAMILY_MAC) || OS_NAME.contains(DARWIN);
} else if (family.equals(FAMILY_TANDEM)) {
isFamily = OS_NAME.contains("nonstop_kernel");
} else if (family.equals(FAMILY_UNIX)) {
isFamily = PATH_SEP.equals(":")
&& !isFamily(FAMILY_OPENVMS)
&& (!isFamily(FAMILY_MAC) || OS_NAME.endsWith("x") || OS_NAME.contains(DARWIN));
} else if (family.equals(FAMILY_ZOS)) {
isFamily = OS_NAME.contains(FAMILY_ZOS) || OS_NAME.contains("os/390");
} else if (family.equals(FAMILY_OS400)) {
isFamily = OS_NAME.contains(FAMILY_OS400);
} else if (family.equals(FAMILY_OPENVMS)) {
isFamily = OS_NAME.contains(FAMILY_OPENVMS);
} else {
isFamily = OS_NAME.contains(family.toLowerCase(Locale.US));
}
}
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;
}
/**
* Helper method to determine the current OS family.
*
* @return name of current OS family.
*/
private static String getOsFamily() {
Set<String> families = getValidFamilies();
for (String fam : families) {
if (Os.isFamily(fam)) {
return fam;
}
}
return null;
}
/**
* Test if the given family String represents a valid Family
*
* @param family the os family
* @return <code>true</code> if 'family' represents a valid OS-Family, <code>false</code> otherwise.
*/
public static boolean isValidFamily(String family) {
return VALID_FAMILIES.contains(family);
}
}