Add local OpFeatures implementation

Change-Id: Ibb1d890a96683e005520da977f2433f8094b0644

2 files changed, 49 insertions, 0 deletions

diff --git a/oneplus-fwk/Android.bp b/oneplus-fwk/Android.bp
new file mode 100644
index 0000000..9750d1b
--- /dev/null
+++ b/oneplus-fwk/Android.bp
@@ -0,0 +1,8 @@
+java_library {
+    name: "oneplus-fwk",
+    installable: true,
+
+    srcs: [
+        "src/**/*.java",
+    ],
+}
diff --git a/oneplus-fwk/src/android/util/OpFeatures.java b/oneplus-fwk/src/android/util/OpFeatures.java
new file mode 100644
index 0000000..fc6bfe0
--- /dev/null
+++ b/oneplus-fwk/src/android/util/OpFeatures.java
@@ -0,0 +1,41 @@
+package android.util;
+
+import java.io.BufferedReader;
+import java.io.File;
+import java.io.FileReader;
+import java.io.IOException;
+import java.util.BitSet;
+
+public final class OpFeatures {
+
+    private static String LOG_TAG = OpFeatures.class.getSimpleName();
+
+    private static final BitSet sFeatures = new BitSet();
+
+    static {
+        File file = new File("/odm/etc/odm_feature_list");
+
+        try (BufferedReader br = new BufferedReader(new FileReader(file))) {
+            for (String line = br.readLine(); line != null; line = br.readLine()) {
+                String[] values = line.split(" ");
+                if (values.length == 4 && values[3].equals("true")) {
+                    String id = values[0].replaceAll("[^0-9]", "");
+                    if (id.length() != 0) {
+                        sFeatures.set(Integer.parseInt(id));
+                    }
+                }
+            }
+        } catch (IOException e) {
+            Log.e(LOG_TAG, "Failed to read odm feature list file", e);
+        }
+    }
+
+    public static boolean isSupport(int... features) {
+        for (int feature : features) {
+            if (feature < 0 || !sFeatures.get(feature)) {
+                return false;
+            }
+        }
+        return true;
+    }
+}