Add hex string utils (283cf9cf) · Commits · e / os / android_packages_inputmethods_LatinIME

java/src/com/android/inputmethod/latin/personalization/PersonalizationDictionaryUpdateSession.java

+3 −0

Original line number	Diff line number	Diff line
		@@ -48,6 +48,8 @@ public abstract class PersonalizationDictionaryUpdateSession {

		public abstract void onDictionaryReady();

		public abstract void onDictionaryClosed();

		public void setPredictionDictionary(String locale, DynamicPredictionDictionaryBase dictionary) {
		mPredictionDictionary = new WeakReference<DynamicPredictionDictionaryBase>(dictionary);
		mLocale = locale;
		@@ -68,6 +70,7 @@ public abstract class PersonalizationDictionaryUpdateSession {

		public void closeSession() {
		unsetPredictionDictionary();
		onDictionaryClosed();
		}

		public void addBigramToPersonalizationDictionary(String word0, String word1, boolean isValid,

java/src/com/android/inputmethod/latin/settings/Settings.java

+13 −1

Original line number	Diff line number	Diff line
		@@ -27,10 +27,10 @@ import com.android.inputmethod.latin.AudioAndHapticFeedbackManager;
		import com.android.inputmethod.latin.InputAttributes;
		import com.android.inputmethod.latin.R;
		import com.android.inputmethod.latin.utils.AdditionalSubtypeUtils;
		import com.android.inputmethod.latin.utils.DebugLogUtils;
		import com.android.inputmethod.latin.utils.LocaleUtils;
		import com.android.inputmethod.latin.utils.ResourceUtils;
		import com.android.inputmethod.latin.utils.RunInLocale;
		import com.android.inputmethod.latin.utils.StringUtils;

		import java.util.HashMap;
		import java.util.Locale;
		@@ -90,6 +90,8 @@ public final class Settings implements SharedPreferences.OnSharedPreferenceChang
		private static final String PREF_SUPPRESS_LANGUAGE_SWITCH_KEY =
		"pref_suppress_language_switch_key";

		private static final String PREF_LAST_USED_PERSONALIZATION_TOKEN =
		"pref_last_used_personalization_token";
		public static final String PREF_SEND_FEEDBACK = "send_feedback";
		public static final String PREF_ABOUT_KEYBOARD = "about_keyboard";

		@@ -343,4 +345,14 @@ public final class Settings implements SharedPreferences.OnSharedPreferenceChang
		return prefs.getBoolean(
		DebugSettings.PREF_USE_ONLY_PERSONALIZATION_DICTIONARY_FOR_DEBUG, false);
		}

		public void writeLastUsedPersonalizationToken(byte[] token) {
		final String tokenStr = StringUtils.byteArrayToHexString(token);
		mPrefs.edit().putString(PREF_LAST_USED_PERSONALIZATION_TOKEN, tokenStr).apply();
		}

		public byte[] readLastUsedPersonalizationToken() {
		final String tokenStr = mPrefs.getString(PREF_LAST_USED_PERSONALIZATION_TOKEN, null);
		return StringUtils.hexStringToByteArray(tokenStr);
		}
		}

java/src/com/android/inputmethod/latin/utils/StringUtils.java

+26 −0

Original line number	Diff line number	Diff line
		@@ -357,4 +357,30 @@ public final class StringUtils {
		}
		return true;
		}

		@UsedForTesting
		public static String byteArrayToHexString(byte[] bytes) {
		if (bytes == null \|\| bytes.length == 0) {
		return "";
		}
		final StringBuilder sb = new StringBuilder();
		for (byte b : bytes) {
		sb.append(String.format("%02x", b & 0xff));
		}
		return sb.toString();
		}

		@UsedForTesting
		public static byte[] hexStringToByteArray(String hexString) {
		if (TextUtils.isEmpty(hexString)) {
		return null;
		}
		final int N = hexString.length();
		final byte[] bytes = new byte[N / 2];
		for (int i = 0; i < N; i += 2) {
		bytes[i / 2] = (byte) ((Character.digit(hexString.charAt(i), 16) << 4)
		+ Character.digit(hexString.charAt(i + 1), 16));
		}
		return bytes;
		}
		}

tests/src/com/android/inputmethod/latin/utils/StringUtilsTests.java

+12 −0

Original line number	Diff line number	Diff line
		@@ -256,4 +256,16 @@ public class StringUtilsTests extends AndroidTestCase {
		// code for now True is acceptable.
		assertTrue(StringUtils.lastPartLooksLikeURL(".abc/def"));
		}

		public void testHexStringUtils() {
		final byte[] bytes = new byte[] { (byte)0x01, (byte)0x11, (byte)0x22, (byte)0x33,
		(byte)0x55, (byte)0x88, (byte)0xEE };
		final String bytesStr = StringUtils.byteArrayToHexString(bytes);
		final byte[] bytes2 = StringUtils.hexStringToByteArray(bytesStr);
		for (int i = 0; i < bytes.length; ++i) {
		assertTrue(bytes[i] == bytes2[i]);
		}
		final String bytesStr2 = StringUtils.byteArrayToHexString(bytes2);
		assertTrue(bytesStr.equals(bytesStr2));
		}
		}