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Code Issues 1 Packages Projects Releases Wiki Activity

Use Gson for cache file

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This commit is contained in:
Daniele Gobbetti
2025-07-20 11:50:56 +02:00
committed by José Rebelo
parent 5b35bbba8f
commit 34812c02db
1 changed files with 13 additions and 12 deletions
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app/src/main/java/nodomain/freeyourgadget/gadgetbridge/model/WeatherCacheManager.kt
+13 -12
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@@ -1,29 +1,31 @@
package nodomain.freeyourgadget.gadgetbridge.model
import com.google.gson.Gson
import com.google.gson.reflect.TypeToken
import kotlinx.coroutines.*
import org.slf4j.LoggerFactory
import java.io.*
import java.io.File
class WeatherCacheManager(
cacheDir: File,
private val useCache: Boolean
) {
private val LOG = LoggerFactory.getLogger("WeatherCacheManager")
private val LOG = LoggerFactory.getLogger("nodomain.freeyourgadget.gadgetbridge.model.WeatherCacheManager")
private val cacheFile = File(cacheDir, "weatherCache.bin")
private val listType = object : TypeToken<List<WeatherSpec>>() {}.type
private val gson: Gson = Gson()
fun load(onLoaded: (List<WeatherSpec>) -> Unit) {
if (!useCache || !cacheFile.exists()) return
CoroutineScope(Dispatchers.IO).launch {
try {
ObjectInputStream(FileInputStream(cacheFile)).use { input ->
val specs = input.readObject() as? ArrayList<WeatherSpec>
specs?.let { onLoaded(it) }
LOG.info("Loaded ${specs?.size ?: 0} weather specs from cache")
}
val json = cacheFile.readText()
val specs: List<WeatherSpec> = gson.fromJson(json, listType)
LOG.info("Loaded ${specs.size} weather specs from cache")
onLoaded(specs)
} catch (e: Exception) {
LOG.error("Failed to load weather cache", e)
LOG.error("Failed to read weather cache file", e)
}
}
}
@@ -33,9 +35,8 @@ class WeatherCacheManager(
CoroutineScope(Dispatchers.IO).launch {
try {
ObjectOutputStream(FileOutputStream(cacheFile)).use { output ->
output.writeObject(ArrayList(specs))
}
val json = gson.toJson(specs)
cacheFile.writeText(json)
LOG.info("Saved weather specs to cache: ${cacheFile.path}")
} catch (e: Exception) {
LOG.error("Failed to save weather cache", e)