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author | Samuel Holland <samuel@sholland.org> | 2018-01-01 02:06:37 -0600 |
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committer | Samuel Holland <samuel@sholland.org> | 2018-01-06 04:09:29 -0600 |
commit | 609194fae2332e6f2ccd7a4464bfa492ad661a6f (patch) | |
tree | 96a7cd9846a093dfcdacfef285b0a4d77000edf0 /app/src/main/java/com/wireguard/android/util/ExceptionLoggers.java | |
parent | Rename package widgets -> widget (diff) | |
download | wireguard-android-609194fae2332e6f2ccd7a4464bfa492ad661a6f.tar.xz wireguard-android-609194fae2332e6f2ccd7a4464bfa492ad661a6f.zip |
Serviceless rewrite, part 1
Signed-off-by: Samuel Holland <samuel@sholland.org>
Diffstat (limited to 'app/src/main/java/com/wireguard/android/util/ExceptionLoggers.java')
-rw-r--r-- | app/src/main/java/com/wireguard/android/util/ExceptionLoggers.java | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/app/src/main/java/com/wireguard/android/util/ExceptionLoggers.java b/app/src/main/java/com/wireguard/android/util/ExceptionLoggers.java new file mode 100644 index 00000000..a11529f4 --- /dev/null +++ b/app/src/main/java/com/wireguard/android/util/ExceptionLoggers.java @@ -0,0 +1,38 @@ +package com.wireguard.android.util; + +import android.util.Log; + +import java9.util.concurrent.CompletionException; +import java9.util.function.BiConsumer; + +/** + * Helpers for logging exceptions from asynchronous tasks. These can be passed to + * {@code CompletionStage.handle()} at the end of an asynchronous future chain. + */ + +public enum ExceptionLoggers implements BiConsumer<Object, Throwable> { + D(Log.DEBUG), + E(Log.ERROR); + + private static final String TAG = ExceptionLoggers.class.getSimpleName(); + + private final int priority; + + ExceptionLoggers(final int priority) { + this.priority = priority; + } + + public static Throwable unwrap(final Throwable throwable) { + if (throwable instanceof CompletionException) + return throwable.getCause(); + return throwable; + } + + @Override + public void accept(final Object result, final Throwable throwable) { + if (throwable != null) + Log.println(Log.ERROR, TAG, Log.getStackTraceString(throwable)); + else if (priority <= Log.DEBUG) + Log.println(priority, TAG, "Future completed successfully"); + } +} |