Readd a condition for OS detection

git-svn-id: https://svn.apache.org/repos/asf/ant/core/trunk@270679 13f79535-47bb-0310-9956-ffa450edef68

proposal/myrmidon/src/main/org/apache/tools/ant/taskdefs/condition/OsCondition.java

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+/*
+ * Copyright (C) The Apache Software Foundation. All rights reserved.
+ *
+ * This software is published under the terms of the Apache Software License
+ * version 1.1, a copy of which has been included with this distribution in
+ * the LICENSE.txt file.
+ */
+package org.apache.tools.ant.taskdefs.condition;
+
+import java.util.Locale;
+import org.apache.aut.nativelib.Os;
+import org.apache.myrmidon.api.TaskException;
+
+/**
+ * Condition to check the current OS.</p>
+ *
+ * @author <a href="mailto:stefan.bodewig@epost.de">Stefan Bodewig</a>
+ * @version $Revision$
+ */
+public class OsCondition
+    extends ConditionBase
+    implements Condition
+{
+    private String m_family;
+    private String m_name;
+    private String m_version;
+    private String m_arch;
+
+    /**
+     * 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>unix</li>
+     *               <li>windows</li></ul>
+     */
+    public void setFamily( final String family )
+    {
+        m_family = family.toLowerCase( Locale.US );
+    }
+
+    /**
+     * Sets the desired OS name
+     *
+     * @param name   The OS name
+     */
+    public void setName( final String name )
+    {
+        m_name = name.toLowerCase( Locale.US );
+    }
+
+    /**
+     * Sets the desired OS architecture
+     *
+     * @param arch   The OS architecture
+     */
+    public void setArch( final String arch )
+    {
+        m_arch = arch.toLowerCase( Locale.US );
+    }
+
+    /**
+     * Sets the desired OS version
+     *
+     * @param version   The OS version
+     */
+    public void setVersion( String version )
+    {
+        this.m_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 TaskException
+    {
+        return Os.isOs( m_family, m_name, m_arch, m_version );
+    }
+}

proposal/myrmidon/src/todo/org/apache/tools/ant/taskdefs/condition/OsCondition.java

@@ -0,0 +1,86 @@
+/*
+ * Copyright (C) The Apache Software Foundation. All rights reserved.
+ *
+ * This software is published under the terms of the Apache Software License
+ * version 1.1, a copy of which has been included with this distribution in
+ * the LICENSE.txt file.
+ */
+package org.apache.tools.ant.taskdefs.condition;
+
+import java.util.Locale;
+import org.apache.aut.nativelib.Os;
+import org.apache.myrmidon.api.TaskException;
+
+/**
+ * Condition to check the current OS.</p>
+ *
+ * @author <a href="mailto:stefan.bodewig@epost.de">Stefan Bodewig</a>
+ * @version $Revision$
+ */
+public class OsCondition
+    extends ConditionBase
+    implements Condition
+{
+    private String m_family;
+    private String m_name;
+    private String m_version;
+    private String m_arch;
+
+    /**
+     * 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>unix</li>
+     *               <li>windows</li></ul>
+     */
+    public void setFamily( final String family )
+    {
+        m_family = family.toLowerCase( Locale.US );
+    }
+
+    /**
+     * Sets the desired OS name
+     *
+     * @param name   The OS name
+     */
+    public void setName( final String name )
+    {
+        m_name = name.toLowerCase( Locale.US );
+    }
+
+    /**
+     * Sets the desired OS architecture
+     *
+     * @param arch   The OS architecture
+     */
+    public void setArch( final String arch )
+    {
+        m_arch = arch.toLowerCase( Locale.US );
+    }
+
+    /**
+     * Sets the desired OS version
+     *
+     * @param version   The OS version
+     */
+    public void setVersion( String version )
+    {
+        this.m_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 TaskException
+    {
+        return Os.isOs( m_family, m_name, m_arch, m_version );
+    }
+}