refactor: Migrate Internal Config class to kotlin #538
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Mansi-mParticle
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einsteinx2
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Feb 6, 2025
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Couple of questions, otherwise looks good
android-core/src/main/kotlin/com/mparticle/internal/ConfigManager.kt
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| open val apiKey: String | ||
| get() = sPreferences?.getString(Constants.PrefKeys.API_KEY, null) ?: "" | ||
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| open val apiSecret: String | ||
| get() = sPreferences?.getString(Constants.PrefKeys.API_SECRET, null) ?: "" |
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I notice in the original Java we return null for both of these if it's not stored. Should these properties be nullable and return null instead of an empty string? Are there any null checks in other places that assume this can return null?
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it is returning null it breaking lot's of existing code and test cases so decide to keep this as non null
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BrandonStalnaker
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LGTM but would appreciate another set of eyes to take a look
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thomson-t
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Do we want to merge the blackout-2024 branch first and then this one to main?
thomson-t
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Jan 22, 2026
| } | ||
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| @get:WorkerThread | ||
| open val latestKitConfiguration: JSONArray? |
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Can we keep it as a function, considering the read operation and side effects?
| ?.putLong(CONFIG_JSON_TIMESTAMP, if (timestamp != null) timestamp else System.currentTimeMillis()) | ||
| ?.putString(Constants.PrefKeys.ETAG, etag) | ||
| ?.putString(Constants.PrefKeys.IF_MODIFIED, lastModified) | ||
| ?.apply() |
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Not the ideal way in Kotlin. If we include androidx.core:core-ktx, we could use it like
sPreferences?.edit {
putString(CONFIG_JSON, coreConfig.toString())
putLong(CONFIG_JSON_TIMESTAMP, if (timestamp != null) timestamp else System.currentTimeMillis())
putString(Constants.PrefKeys.ETAG, etag)
putString(Constants.PrefKeys.IF_MODIFIED, lastModified)
}Even without that dependency, we can use kotlin features to avoid chained nullable checks, like
sPreferences?.edit()?.apply {
putString(CONFIG_JSON, coreConfig.toString())
putLong(CONFIG_JSON_TIMESTAMP, if (timestamp != null) timestamp else System.currentTimeMillis())
putString(Constants.PrefKeys.ETAG, etag)
putString(Constants.PrefKeys.IF_MODIFIED, lastModified)
apply()
}
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| fun shouldTrigger(message: BaseMPMessage): Boolean { | ||
| val messageMatches: JSONArray? = triggerMessageMatches | ||
| val triggerHashes: JSONArray? = triggerMessageHashes | ||
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| var isBackgroundAst: Boolean = false | ||
| try { | ||
| isBackgroundAst = | ||
| (message.messageType == Constants.MessageType.APP_STATE_TRANSITION && message.get(Constants.MessageKey.STATE_TRANSITION_TYPE) == Constants.StateTransitionType.STATE_TRANS_BG) | ||
| } catch (ex: JSONException) { | ||
| } | ||
| var shouldTrigger: Boolean = message.messageType == Constants.MessageType.PUSH_RECEIVED || | ||
| message.messageType == Constants.MessageType.COMMERCE_EVENT || | ||
| isBackgroundAst | ||
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| if (!shouldTrigger && messageMatches != null && messageMatches.length() > 0) { | ||
| shouldTrigger = true | ||
| var i: Int = 0 | ||
| while (shouldTrigger && i < messageMatches.length()) { | ||
| try { | ||
| val messageMatch: JSONObject = messageMatches.getJSONObject(i) | ||
| val keys: Iterator<*> = messageMatch.keys() | ||
| while (shouldTrigger && keys.hasNext()) { | ||
| val key: String = keys.next() as String | ||
| shouldTrigger = message.has(key) | ||
| if (shouldTrigger) { | ||
| try { | ||
| shouldTrigger = messageMatch.getString(key).equals(message.getString(key), ignoreCase = true) | ||
| } catch (stringex: JSONException) { | ||
| try { | ||
| shouldTrigger = message.getBoolean(key) == messageMatch.getBoolean(key) | ||
| } catch (boolex: JSONException) { | ||
| try { | ||
| shouldTrigger = message.getDouble(key) == messageMatch.getDouble(key) | ||
| } catch (doubleex: JSONException) { | ||
| shouldTrigger = false | ||
| } | ||
| } | ||
| } | ||
| } | ||
| } | ||
| } catch (e: Exception) { | ||
| } | ||
| i++ | ||
| } | ||
| } | ||
| if (!shouldTrigger && triggerHashes != null) { | ||
| for (i in 0 until triggerHashes.length()) { | ||
| try { | ||
| if (triggerHashes.getInt(i) == message.typeNameHash) { | ||
| shouldTrigger = true | ||
| break | ||
| } | ||
| } catch (jse: JSONException) { | ||
| } | ||
| } | ||
| } | ||
| return shouldTrigger |
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This is probably the direct translation from Java to Kotlin, not an optimised Kotlin code. We can refactor it later.
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