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Merge pull request #87 from Parsely/extract_queuemanager_local_storage
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parsely/src/main/java/com/parsely/parselyandroid/LocalStorageRepository.kt
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,82 @@ | ||
| package com.parsely.parselyandroid | ||
|
|
||
| import android.content.Context | ||
| import java.io.EOFException | ||
| import java.io.FileNotFoundException | ||
| import java.io.ObjectInputStream | ||
| import java.io.ObjectOutputStream | ||
|
|
||
| internal open class LocalStorageRepository(private val context: Context) { | ||
| /** | ||
| * Persist an object to storage. | ||
| * | ||
| * @param o Object to store. | ||
| */ | ||
| private fun persistObject(o: Any) { | ||
| try { | ||
| val fos = context.applicationContext.openFileOutput( | ||
| STORAGE_KEY, | ||
| Context.MODE_PRIVATE | ||
| ) | ||
| val oos = ObjectOutputStream(fos) | ||
| oos.writeObject(o) | ||
| oos.close() | ||
| } catch (ex: Exception) { | ||
| ParselyTracker.PLog("Exception thrown during queue serialization: %s", ex.toString()) | ||
| } | ||
| } | ||
|
|
||
| /** | ||
| * Delete the stored queue from persistent storage. | ||
| */ | ||
| fun purgeStoredQueue() { | ||
| persistObject(ArrayList<Map<String, Any>>()) | ||
| } | ||
|
|
||
| /** | ||
| * Get the stored event queue from persistent storage. | ||
| * | ||
| * @return The stored queue of events. | ||
| */ | ||
| open fun getStoredQueue(): ArrayList<Map<String, Any?>?> { | ||
| var storedQueue: ArrayList<Map<String, Any?>?> = ArrayList() | ||
| try { | ||
| val fis = context.applicationContext.openFileInput(STORAGE_KEY) | ||
| val ois = ObjectInputStream(fis) | ||
| @Suppress("UNCHECKED_CAST") | ||
| storedQueue = ois.readObject() as ArrayList<Map<String, Any?>?> | ||
| ois.close() | ||
| } catch (ex: EOFException) { | ||
| // Nothing to do here. | ||
| } catch (ex: FileNotFoundException) { | ||
| // Nothing to do here. Means there was no saved queue. | ||
| } catch (ex: Exception) { | ||
| ParselyTracker.PLog( | ||
| "Exception thrown during queue deserialization: %s", | ||
| ex.toString() | ||
| ) | ||
| } | ||
| return storedQueue | ||
| } | ||
|
|
||
| /** | ||
| * Delete an event from the stored queue. | ||
| */ | ||
| open fun expelStoredEvent() { | ||
| val storedQueue = getStoredQueue() | ||
| storedQueue.removeAt(0) | ||
| } | ||
|
|
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| /** | ||
| * Save the event queue to persistent storage. | ||
| */ | ||
| @Synchronized | ||
| open fun persistQueue(inMemoryQueue: List<Map<String, Any?>?>) { | ||
| ParselyTracker.PLog("Persisting event queue") | ||
| persistObject((inMemoryQueue + getStoredQueue()).distinct()) | ||
| } | ||
|
|
||
| companion object { | ||
| private const val STORAGE_KEY = "parsely-events.ser" | ||
| } | ||
| } |
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30
parsely/src/main/java/com/parsely/parselyandroid/QueueManager.kt
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,30 @@ | ||
| package com.parsely.parselyandroid | ||
|
|
||
| import android.os.AsyncTask | ||
|
|
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| @Suppress("DEPRECATION") | ||
| internal class QueueManager( | ||
| private val parselyTracker: ParselyTracker, | ||
| private val localStorageRepository: LocalStorageRepository | ||
| ) : AsyncTask<Void?, Void?, Void?>() { | ||
|
|
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| @Deprecated("Deprecated in Java") | ||
| override fun doInBackground(vararg params: Void?): Void? { | ||
| // if event queue is too big, push to persisted storage | ||
| if (parselyTracker.inMemoryQueue.size > QUEUE_SIZE_LIMIT) { | ||
| ParselyTracker.PLog("Queue size exceeded, expelling oldest event to persistent memory") | ||
| localStorageRepository.persistQueue(parselyTracker.inMemoryQueue) | ||
| parselyTracker.inMemoryQueue.removeAt(0) | ||
| // if persisted storage is too big, expel one | ||
| if (parselyTracker.storedEventsCount() > STORAGE_SIZE_LIMIT) { | ||
| localStorageRepository.expelStoredEvent() | ||
| } | ||
| } | ||
| return null | ||
| } | ||
|
|
||
| companion object { | ||
| const val QUEUE_SIZE_LIMIT = 50 | ||
| const val STORAGE_SIZE_LIMIT = 100 | ||
| } | ||
| } |
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