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/*
 * Copyright  2001-2005 The Apache Software Foundation
 *
 *  Licensed 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.tools.ant.taskdefs.condition;

import java.util.Locale;
import org.apache.tools.ant.BuildException;

/**
 * Condition that tests the OS type.
 *
 * @since Ant 1.4
 */
public class Os implements Condition {
    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");

    private String family;
    private String name;
    private String version;
    private String arch;

    /**
     * Default constructor
     *
     */
    public Os() {
    }

    /**
     * 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
* Possible values:
*
    *
  • dos
  • *
  • mac
  • *
  • netware
  • *
  • os/2
  • *
  • tandem
  • *
  • unix
  • *
  • windows
  • *
  • win9x
  • *
  • z/os
  • *
  • os/400
  • *
*/ public void setFamily(String f) { family = f.toLowerCase(Locale.US); } /** * Sets the desired OS name * * @param name The OS name */ public void setName(String name) { this.name = name.toLowerCase(Locale.US); } /** * Sets the desired OS architecture * * @param arch The OS architecture */ public void setArch(String arch) { this.arch = arch.toLowerCase(Locale.US); } /** * Sets the desired OS version * * @param version The OS version */ public void setVersion(String version) { this.version = version.toLowerCase(Locale.US); } /** * Determines if the OS on which Ant is executing matches the type of * that set in setFamily. * @see Os#setFamily(String) */ public boolean eval() throws BuildException { return isOs(family, name, arch, version); } /** * 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 * @since 1.5 */ 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 * @since 1.7 */ 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 * @since 1.7 */ 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 * @since 1.7 */ 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 * @since 1.7 */ public 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) { if (family.equals("windows")) { isFamily = OS_NAME.indexOf("windows") > -1; } else if (family.equals("os/2")) { isFamily = OS_NAME.indexOf("os/2") > -1; } else if (family.equals("netware")) { isFamily = OS_NAME.indexOf("netware") > -1; } else if (family.equals("dos")) { isFamily = PATH_SEP.equals(";") && !isFamily("netware"); } else if (family.equals("mac")) { isFamily = OS_NAME.indexOf("mac") > -1; } else if (family.equals("tandem")) { isFamily = OS_NAME.indexOf("nonstop_kernel") > -1; } else if (family.equals("unix")) { isFamily = PATH_SEP.equals(":") && !isFamily("openvms") && (!isFamily("mac") || OS_NAME.endsWith("x")); } else if (family.equals("win9x")) { isFamily = isFamily("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("z/os")) { isFamily = OS_NAME.indexOf("z/os") > -1 || OS_NAME.indexOf("os/390") > -1; } else if (family.equals("os/400")) { isFamily = OS_NAME.indexOf("os/400") > -1; } else if (family.equals("openvms")) { isFamily = OS_NAME.indexOf("openvms") > -1; } else { throw new BuildException( "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; } }




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