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Commit ff701a6a authored by Torne (Richard Coles)'s avatar Torne (Richard Coles)
Browse files

Parse system properties that are lists correctly. 

String.split() returns a one-element array of the empty string if the
input is the empty string, not a zero-element array. Introduce a
getStringList function to handle this consistently in the cases where
system properties are parsed as comma separated lists.

The main result is that SUPPORTED_64_BIT_ABIS will now correctly be
empty on a 32-bit only device.

Change-Id: I6f74b48d0a6ced3cd6d49c05aad6a4b7e0b074d2
parent 6c9eee87

core/java/android/os/Build.java

+13 −5
Original line number Diff line number Diff line
@@ -96,8 +96,7 @@ public class Build { 
     *

     * See {@link #SUPPORTED_32_BIT_ABIS} and {@link #SUPPORTED_64_BIT_ABIS}.

     */

    public static final String[] SUPPORTED_ABIS = SystemProperties.get("ro.product.cpu.abilist")

            .split(",");

    public static final String[] SUPPORTED_ABIS = getStringList("ro.product.cpu.abilist", ",");



    /**

     * An ordered list of <b>32 bit</b> ABIs supported by this device. The most preferred ABI
@@ -106,7 +105,7 @@ public class Build { 
     * See {@link #SUPPORTED_ABIS} and {@link #SUPPORTED_64_BIT_ABIS}.

     */

    public static final String[] SUPPORTED_32_BIT_ABIS =

            SystemProperties.get("ro.product.cpu.abilist32").split(",");

            getStringList("ro.product.cpu.abilist32", ",");



    /**

     * An ordered list of <b>64 bit</b> ABIs supported by this device. The most preferred ABI
@@ -115,7 +114,7 @@ public class Build { 
     * See {@link #SUPPORTED_ABIS} and {@link #SUPPORTED_32_BIT_ABIS}.

     */

    public static final String[] SUPPORTED_64_BIT_ABIS =

            SystemProperties.get("ro.product.cpu.abilist64").split(",");

            getStringList("ro.product.cpu.abilist64", ",");





    /** Various version strings. */
@@ -155,7 +154,7 @@ public class Build { 
        public static final String CODENAME = getString("ro.build.version.codename");



        private static final String[] ALL_CODENAMES

                = getString("ro.build.version.all_codenames").split(",");

                = getStringList("ro.build.version.all_codenames", ",");



        /**

         * @hide
@@ -614,6 +613,15 @@ public class Build { 
        return SystemProperties.get(property, UNKNOWN);

    }



    private static String[] getStringList(String property, String separator) {

        String value = SystemProperties.get(property);

        if (value.isEmpty()) {

            return new String[0];

        } else {

            return value.split(separator);

        }

    }



    private static long getLong(String property) {

        try {

            return Long.parseLong(SystemProperties.get(property));