Add utility methods used by the call stats code.

Change-Id: If000c0638af8b50654f2a3637e9a780759710502

1 files changed, 39 insertions, 0 deletions

diff --git a/src/com/android/contacts/common/CallUtil.java b/src/com/android/contacts/common/CallUtil.java
index d61b700e..435e9868 100644
--- a/src/com/android/contacts/common/CallUtil.java
+++ b/src/com/android/contacts/common/CallUtil.java
@@ -81,6 +81,45 @@ public class CallUtil {
     }
 
     /**
+     * Checks whether two phone numbers resolve to the same phone.
+     */
+    public static boolean phoneNumbersEqual(String number1, String number2) {
+        if (PhoneNumberUtils.isUriNumber(number1) || PhoneNumberUtils.isUriNumber(number2)) {
+            return sipAddressesEqual(number1, number2);
+        } else {
+            return PhoneNumberUtils.compare(number1, number2);
+        }
+    }
+
+    private static boolean sipAddressesEqual(String number1, String number2) {
+        if (number1 == null || number2 == null) return number1 == number2;
+
+        int index1 = number1.indexOf('@');
+        final String userinfo1;
+        final String rest1;
+        if (index1 != -1) {
+            userinfo1 = number1.substring(0, index1);
+            rest1 = number1.substring(index1);
+        } else {
+            userinfo1 = number1;
+            rest1 = "";
+        }
+
+        int index2 = number2.indexOf('@');
+        final String userinfo2;
+        final String rest2;
+        if (index2 != -1) {
+            userinfo2 = number2.substring(0, index2);
+            rest2 = number2.substring(index2);
+        } else {
+            userinfo2 = number2;
+            rest2 = "";
+        }
+
+        return userinfo1.equals(userinfo2) && rest1.equalsIgnoreCase(rest2);
+    }
+
+    /**
      * Return Uri with an appropriate scheme, accepting Voicemail, SIP, and usual phone call
      * numbers.
      */