Injecting network ip provision stats into statsd

1. Fill in each field of the NetworkIpProvisioningReported
2. Write the NetworkIpProvisioningReported into statsd

Bug: 151796056
Test: atest NetworkStackIntegrationTests NetworkStackTests
Test: atest FrameworksNetTests
Test: Manual test with statsd_testdrive

Original-Change: https://android-review.googlesource.com/1313574
Merged-In: If4bc6af1b794a8620a08858d6cfd85e661865bd7
Change-Id: If4bc6af1b794a8620a08858d6cfd85e661865bd7

1 files changed, 18 insertions, 0 deletions

diff --git a/src/android/net/util/NetworkStackUtils.java b/src/android/net/util/NetworkStackUtils.java
index 99563ee..19ca4b5 100755
--- a/src/android/net/util/NetworkStackUtils.java
+++ b/src/android/net/util/NetworkStackUtils.java
@@ -436,4 +436,22 @@ public class NetworkStackUtils {
         return addr instanceof Inet6Address
                 && ((addr.getAddress()[0] & 0xfe) == 0xfc);
     }
+
+    /**
+     * Returns the {@code int} nearest in value to {@code value}.
+     *
+     * @param value any {@code long} value
+     * @return the same value cast to {@code int} if it is in the range of the {@code int}
+     * type, {@link Integer#MAX_VALUE} if it is too large, or {@link Integer#MIN_VALUE} if
+     * it is too small
+     */
+    public static int saturatedCast(long value) {
+        if (value > Integer.MAX_VALUE) {
+            return Integer.MAX_VALUE;
+        }
+        if (value < Integer.MIN_VALUE) {
+            return Integer.MIN_VALUE;
+        }
+        return (int) value;
+    }
 }