commons-vfs2/src/main/java/org/apache/commons/vfs2/util/Os.java - commons-vfs - Git at Google

 /*
  * 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.commons.vfs2.util;

 import java.io.File;
 import java.util.ArrayList;
 import java.util.Collections;
 import java.util.HashSet;
 import java.util.List;
 import java.util.Locale;
 import java.util.Set;

 import org.apache.commons.lang3.SystemUtils;

 /**
  * Class to help determining the OS.
  *
  * @deprecated Use Apache Commons Lang's {@link SystemUtils}. Remove in 3.0.
  */
 @Deprecated
 public final class Os {

     /**
      * All Windows based OSes.
      */
     public static final OsFamily OS_FAMILY_WINDOWS = new OsFamily("windows");

     /**
      * All DOS based OSes.
      */
     public static final OsFamily OS_FAMILY_DOS = new OsFamily("dos");

     /**
      * All Windows NT based OSes.
      */
     public static final OsFamily OS_FAMILY_WINNT = new OsFamily("nt", new OsFamily[] { OS_FAMILY_WINDOWS });

     /**
      * All Windows 9x based OSes.
      */
     public static final OsFamily OS_FAMILY_WIN9X = new OsFamily("win9x",
             new OsFamily[] { OS_FAMILY_WINDOWS, OS_FAMILY_DOS });

     /**
      * OS/2.
      */
     public static final OsFamily OS_FAMILY_OS2 = new OsFamily("os/2", new OsFamily[] { OS_FAMILY_DOS });

     /**
      * Netware.
      */
     public static final OsFamily OS_FAMILY_NETWARE = new OsFamily("netware");

     /**
      * All UNIX based OSes.
      */
     public static final OsFamily OS_FAMILY_UNIX = new OsFamily("unix");

     /**
      * All Mac based OSes.
      */
     public static final OsFamily OS_FAMILY_MAC = new OsFamily("mac");

     /**
      * OSX.
      */
     public static final OsFamily OS_FAMILY_OSX = new OsFamily("osx", new OsFamily[] { OS_FAMILY_UNIX, OS_FAMILY_MAC });

     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 = File.pathSeparator;
     private static final OsFamily OS_FAMILY;
     private static final OsFamily[] OS_ALL_FAMILIES;

     private static final OsFamily[] ALL_FAMILIES = new OsFamily[] { OS_FAMILY_DOS, OS_FAMILY_MAC, OS_FAMILY_NETWARE,
             OS_FAMILY_OS2, OS_FAMILY_OSX, OS_FAMILY_UNIX, OS_FAMILY_WINDOWS, OS_FAMILY_WINNT, OS_FAMILY_WIN9X };

     static {
         OS_FAMILY = determineOsFamily();
         OS_ALL_FAMILIES = determineAllFamilies();
     }

     /**
      * Private constructor to block instantiation.
      */
     private Os() {
     }

     /**
      * Determines if the OS on which Ant is executing matches the given OS version.
      *
      * @param version The version to check.
      * @return true if the version matches.
      */
     public static boolean isVersion(final String version) {
         return isOs((OsFamily) null, null, null, version);
     }

     /**
      * Determines if the OS on which Ant is executing matches the given OS architecture.
      *
      * @param arch The architecture to check.
      * @return true if the architecture mataches.
      */
     public static boolean isArch(final String arch) {
         return isOs((OsFamily) null, null, arch, null);
     }

     /**
      * Determines if the OS on which Ant is executing matches the given OS family.
      *
      * @param family The family to check.
      * @return true if the family matches.
      */
     public static boolean isFamily(final String family) {
         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.
      * @return true if the family matches.
      */
     public static boolean isFamily(final OsFamily family) {
         return isOs(family, null, null, null);
     }

     /**
      * Determines if the OS on which Ant is executing matches the given OS name.
      *
      * @param name Description of Parameter
      * @return The Name value
      * @since 1.7
      */
     public static boolean isName(final String name) {
         return isOs((OsFamily) null, name, null, null);
     }

     /**
      * 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 The Os value
      */
     public static boolean isOs(final String family, final String name, final String arch, final String version) {
         return isOs(getFamily(family), name, arch, 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 The Os value
      */
     public static boolean isOs(final OsFamily family, final String name, final String arch, final String version) {
         if (family != null || name != null || arch != null || version != null) {
             final boolean isFamily = familyMatches(family);
             final boolean isName = nameMatches(name);
             final boolean isArch = archMatches(arch);
             final boolean isVersion = versionMatches(version);

             return isFamily && isName && isArch && isVersion;
         }
         return false;
     }

     /**
      * Locates an OsFamily by name (case-insensitive).
      *
      * @param name The family name to lookup.
      * @return the OS family, or null if not found.
      */
     public static OsFamily getFamily(final String name) {
         for (final OsFamily osFamily : ALL_FAMILIES) {
             if (osFamily.getName().equalsIgnoreCase(name)) {
                 return osFamily;
             }
         }

         return null;
     }

     private static boolean versionMatches(final String version) {
         boolean isVersion = true;
         if (version != null) {
             isVersion = version.equalsIgnoreCase(OS_VERSION);
         }
         return isVersion;
     }

     private static boolean archMatches(final String arch) {
         boolean isArch = true;
         if (arch != null) {
             isArch = arch.equalsIgnoreCase(OS_ARCH);
         }
         return isArch;
     }

     private static boolean nameMatches(final String name) {
         boolean isName = true;
         if (name != null) {
             isName = name.equalsIgnoreCase(OS_NAME);
         }
         return isName;
     }

     private static boolean familyMatches(final OsFamily family) {
         if (family == null) {
             return false;
         }
         for (final OsFamily osFamily : OS_ALL_FAMILIES) {
             if (family == osFamily) {
                 return true;
             }
         }
         return false;
     }

     private static OsFamily[] determineAllFamilies() {
         // Determine all families the current OS belongs to
         final Set<OsFamily> allFamilies = new HashSet<>();
         if (OS_FAMILY != null) {
             final List<OsFamily> queue = new ArrayList<>();
             queue.add(OS_FAMILY);
             while (!queue.isEmpty()) {
                 final OsFamily family = queue.remove(0);
                 allFamilies.add(family);
                 final OsFamily[] families = family.getFamilies();
                 Collections.addAll(queue, families);
             }
         }
         return allFamilies.toArray(OsFamily.EMPTY_OS_FAMILY_ARRAY);
     }

     private static OsFamily determineOsFamily() {
         // Determine the most specific OS family
         if (OS_NAME.contains("windows")) {
             if (OS_NAME.contains("xp") || OS_NAME.contains("2000") || OS_NAME.contains("nt")) {
                 return OS_FAMILY_WINNT;
             }
             return OS_FAMILY_WIN9X;
         }
         if (OS_NAME.contains("os/2")) {
             return OS_FAMILY_OS2;
         }
         if (OS_NAME.contains("netware")) {
             return OS_FAMILY_NETWARE;
         }
         if (OS_NAME.contains("mac")) {
             if (OS_NAME.endsWith("x")) {
                 return OS_FAMILY_OSX;
             }
             return OS_FAMILY_MAC;
         }
         if (PATH_SEP.equals(":")) {
             return OS_FAMILY_UNIX;
         }
         return null;
     }
 }
	/*
	* 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.commons.vfs2.util;

	import java.io.File;
	import java.util.ArrayList;
	import java.util.Collections;
	import java.util.HashSet;
	import java.util.List;
	import java.util.Locale;
	import java.util.Set;

	import org.apache.commons.lang3.SystemUtils;

	/**
	* Class to help determining the OS.
	*
	* @deprecated Use Apache Commons Lang's {@link SystemUtils}. Remove in 3.0.
	*/
	@Deprecated
	public final class Os {

	/**
	* All Windows based OSes.
	*/
	public static final OsFamily OS_FAMILY_WINDOWS = new OsFamily("windows");

	/**
	* All DOS based OSes.
	*/
	public static final OsFamily OS_FAMILY_DOS = new OsFamily("dos");

	/**
	* All Windows NT based OSes.
	*/
	public static final OsFamily OS_FAMILY_WINNT = new OsFamily("nt", new OsFamily[] { OS_FAMILY_WINDOWS });

	/**
	* All Windows 9x based OSes.
	*/
	public static final OsFamily OS_FAMILY_WIN9X = new OsFamily("win9x",
	new OsFamily[] { OS_FAMILY_WINDOWS, OS_FAMILY_DOS });

	/**
	* OS/2.
	*/
	public static final OsFamily OS_FAMILY_OS2 = new OsFamily("os/2", new OsFamily[] { OS_FAMILY_DOS });

	/**
	* Netware.
	*/
	public static final OsFamily OS_FAMILY_NETWARE = new OsFamily("netware");

	/**
	* All UNIX based OSes.
	*/
	public static final OsFamily OS_FAMILY_UNIX = new OsFamily("unix");

	/**
	* All Mac based OSes.
	*/
	public static final OsFamily OS_FAMILY_MAC = new OsFamily("mac");

	/**
	* OSX.
	*/
	public static final OsFamily OS_FAMILY_OSX = new OsFamily("osx", new OsFamily[] { OS_FAMILY_UNIX, OS_FAMILY_MAC });

	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 = File.pathSeparator;
	private static final OsFamily OS_FAMILY;
	private static final OsFamily[] OS_ALL_FAMILIES;

	private static final OsFamily[] ALL_FAMILIES = new OsFamily[] { OS_FAMILY_DOS, OS_FAMILY_MAC, OS_FAMILY_NETWARE,
	OS_FAMILY_OS2, OS_FAMILY_OSX, OS_FAMILY_UNIX, OS_FAMILY_WINDOWS, OS_FAMILY_WINNT, OS_FAMILY_WIN9X };

	static {
	OS_FAMILY = determineOsFamily();
	OS_ALL_FAMILIES = determineAllFamilies();
	}

	/**
	* Private constructor to block instantiation.
	*/
	private Os() {
	}

	/**
	* Determines if the OS on which Ant is executing matches the given OS version.
	*
	* @param version The version to check.
	* @return true if the version matches.
	*/
	public static boolean isVersion(final String version) {
	return isOs((OsFamily) null, null, null, version);
	}

	/**
	* Determines if the OS on which Ant is executing matches the given OS architecture.
	*
	* @param arch The architecture to check.
	* @return true if the architecture mataches.
	*/
	public static boolean isArch(final String arch) {
	return isOs((OsFamily) null, null, arch, null);
	}

	/**
	* Determines if the OS on which Ant is executing matches the given OS family.
	*
	* @param family The family to check.
	* @return true if the family matches.
	*/
	public static boolean isFamily(final String family) {
	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.
	* @return true if the family matches.
	*/
	public static boolean isFamily(final OsFamily family) {
	return isOs(family, null, null, null);
	}

	/**
	* Determines if the OS on which Ant is executing matches the given OS name.
	*
	* @param name Description of Parameter
	* @return The Name value
	* @since 1.7
	*/
	public static boolean isName(final String name) {
	return isOs((OsFamily) null, name, null, null);
	}

	/**
	* 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 The Os value
	*/
	public static boolean isOs(final String family, final String name, final String arch, final String version) {
	return isOs(getFamily(family), name, arch, 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 The Os value
	*/
	public static boolean isOs(final OsFamily family, final String name, final String arch, final String version) {
	if (family != null \|\| name != null \|\| arch != null \|\| version != null) {
	final boolean isFamily = familyMatches(family);
	final boolean isName = nameMatches(name);
	final boolean isArch = archMatches(arch);
	final boolean isVersion = versionMatches(version);

	return isFamily && isName && isArch && isVersion;
	}
	return false;
	}

	/**
	* Locates an OsFamily by name (case-insensitive).
	*
	* @param name The family name to lookup.
	* @return the OS family, or null if not found.
	*/
	public static OsFamily getFamily(final String name) {
	for (final OsFamily osFamily : ALL_FAMILIES) {
	if (osFamily.getName().equalsIgnoreCase(name)) {
	return osFamily;
	}
	}

	return null;
	}

	private static boolean versionMatches(final String version) {
	boolean isVersion = true;
	if (version != null) {
	isVersion = version.equalsIgnoreCase(OS_VERSION);
	}
	return isVersion;
	}

	private static boolean archMatches(final String arch) {
	boolean isArch = true;
	if (arch != null) {
	isArch = arch.equalsIgnoreCase(OS_ARCH);
	}
	return isArch;
	}

	private static boolean nameMatches(final String name) {
	boolean isName = true;
	if (name != null) {
	isName = name.equalsIgnoreCase(OS_NAME);
	}
	return isName;
	}

	private static boolean familyMatches(final OsFamily family) {
	if (family == null) {
	return false;
	}
	for (final OsFamily osFamily : OS_ALL_FAMILIES) {
	if (family == osFamily) {
	return true;
	}
	}
	return false;
	}

	private static OsFamily[] determineAllFamilies() {
	// Determine all families the current OS belongs to
	final Set<OsFamily> allFamilies = new HashSet<>();
	if (OS_FAMILY != null) {
	final List<OsFamily> queue = new ArrayList<>();
	queue.add(OS_FAMILY);
	while (!queue.isEmpty()) {
	final OsFamily family = queue.remove(0);
	allFamilies.add(family);
	final OsFamily[] families = family.getFamilies();
	Collections.addAll(queue, families);
	}
	}
	return allFamilies.toArray(OsFamily.EMPTY_OS_FAMILY_ARRAY);
	}

	private static OsFamily determineOsFamily() {
	// Determine the most specific OS family
	if (OS_NAME.contains("windows")) {
	if (OS_NAME.contains("xp") \|\| OS_NAME.contains("2000") \|\| OS_NAME.contains("nt")) {
	return OS_FAMILY_WINNT;
	}
	return OS_FAMILY_WIN9X;
	}
	if (OS_NAME.contains("os/2")) {
	return OS_FAMILY_OS2;
	}
	if (OS_NAME.contains("netware")) {
	return OS_FAMILY_NETWARE;
	}
	if (OS_NAME.contains("mac")) {
	if (OS_NAME.endsWith("x")) {
	return OS_FAMILY_OSX;
	}
	return OS_FAMILY_MAC;
	}
	if (PATH_SEP.equals(":")) {
	return OS_FAMILY_UNIX;
	}
	return null;
	}
	}