1 files changed, 51 insertions, 0 deletions
diff --git a/libraries/sts-common-util/util/src/com/android/sts/common/util/SplUtils.java b/libraries/sts-common-util/util/src/com/android/sts/common/util/SplUtils.java
new file mode 100644
index 000000000..afb7b12af
--- /dev/null
+++ b/libraries/sts-common-util/util/src/com/android/sts/common/util/SplUtils.java
@@ -0,0 +1,51 @@
+/*
+ * Copyright (C) 2021 The Android Open Source Project
+ *
+ * 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 com.android.sts.common.util;
+
+import java.time.Instant;
+import java.time.LocalDate;
+import java.time.ZoneId;
+import java.time.format.DateTimeFormatter;
+
+/** Tools for Security Patch Levels and LocalDates representing them. */
+public final class SplUtils {
+    private static final ZoneId UTC_ZONE_ID = ZoneId.of("UTC");
+    private static final DateTimeFormatter formatter = DateTimeFormatter.ofPattern("yyyy-MM-dd");
+
+    public enum Type {
+        PARTIAL(1), // platform
+        COMPLETE(5); // device-specific (kernel, soc, etc)
+
+        public final int day;
+
+        Type(int day) {
+            this.day = day;
+        }
+    }
+
+    public static LocalDate localDateFromMillis(long millis) {
+        return Instant.ofEpochMilli(millis).atZone(UTC_ZONE_ID).toLocalDate();
+    }
+
+    public static LocalDate localDateFromSplString(String spl) {
+        return LocalDate.parse(spl, formatter);
+    }
+
+    public static String format(LocalDate date) {
+        return date.format(formatter);
+    }
+}