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Buffer logging in memory to send it out with a feedback message.
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app/src/main/java/com/pr0gramm/app/util/CrashlyticsLogHandler.kt
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,74 @@ | ||
| package com.pr0gramm.app.util | ||
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| import android.support.v4.util.CircularArray | ||
| import com.crashlytics.android.Crashlytics | ||
| import com.pr0gramm.app.BuildConfig | ||
| import pl.brightinventions.slf4android.MessageValueSupplier | ||
| import java.util.logging.Handler | ||
| import java.util.logging.Level | ||
|
|
||
| /** | ||
| */ | ||
| class LogHandler : Handler() { | ||
| private val messageValueSupplier = MessageValueSupplier() | ||
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| private val crashlytics by lazy(LazyThreadSafetyMode.NONE) { | ||
| Crashlytics.getInstance().core | ||
| } | ||
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| override fun publish(record: java.util.logging.LogRecord) { | ||
| if (record.level.intValue() <= Level.INFO.intValue()) { | ||
| val messageBuilder = StringBuilder() | ||
| val logRecord = pl.brightinventions.slf4android.LogRecord.fromRecord(record) | ||
| messageValueSupplier.append(logRecord, messageBuilder) | ||
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| val formatted = messageBuilder.toString() | ||
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| val tag = record.loggerName | ||
| val androidLogLevel = logRecord.logLevel.androidLevel | ||
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| if (!BuildConfig.DEBUG) { | ||
| crashlytics.log(androidLogLevel, tag, formatted) | ||
| } | ||
|
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| synchronized(BUFFER) { | ||
| // remove the oldest message if we've reached the limit | ||
| if (BUFFER.size() == MESSAGE_LIMIT) { | ||
| BUFFER.popLast() | ||
| } | ||
|
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| // and add the new message to the buffer | ||
| BUFFER.addFirst(LogEntry(record.millis, record.level, tag, formatted)) | ||
| } | ||
| } | ||
| } | ||
|
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| override fun close() {} | ||
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| override fun flush() {} | ||
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| private data class LogEntry(val time: Long, val level: Level, val tag: String, val message: String) | ||
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| companion object { | ||
| const val MESSAGE_LIMIT = 4096 | ||
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| private val BUFFER = CircularArray<LogEntry>(MESSAGE_LIMIT) | ||
|
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| /** | ||
| * Returns a list of the recent messages | ||
| */ | ||
| fun recentMessages(): List<String> { | ||
| val entries = synchronized(BUFFER) { | ||
| (0..BUFFER.size() - 1).map { BUFFER.get(it) } | ||
| } | ||
|
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| // get the most recent entry. should be the last one | ||
| val mostRecentEntry = entries.maxBy { it.time } ?: return emptyList() | ||
|
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| // format each entry relative to the newest one | ||
| return entries.sortedBy { it.time }.map { (time, level, tag, message) -> | ||
| "%4.2fs [%5s] %s: %s".format(0.001f * (time - mostRecentEntry.time), level.name, tag, message) | ||
| } | ||
| } | ||
| } | ||
| } |