kshark.AndroidMetadataExtractor.kt Maven / Gradle / Ivy

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package kshark

object AndroidMetadataExtractor : MetadataExtractor {
  override fun extractMetadata(graph: HeapGraph): Map {
    val build = AndroidBuildMirror.fromHeapGraph(graph)

    val leakCanaryVersion = readLeakCanaryVersion(graph)
    val processName = readProcessName(graph)

    return mapOf(
      "Build.VERSION.SDK_INT" to build.sdkInt.toString(),
      "Build.MANUFACTURER" to build.manufacturer,
      "LeakCanary version" to leakCanaryVersion,
      "App process name" to processName
    )
  }

  private fun readLeakCanaryVersion(graph: HeapGraph): String {
    val versionHolderClass = graph.findClassByName("leakcanary.internal.InternalLeakCanary")
    return versionHolderClass?.get("version")?.value?.readAsJavaString() ?: "Unknown"
  }

  private fun readProcessName(graph: HeapGraph): String {
    val activityThread = graph.findClassByName("android.app.ActivityThread")
      ?.get("sCurrentActivityThread")
      ?.valueAsInstance
    val appBindData = activityThread?.get("android.app.ActivityThread", "mBoundApplication")
      ?.valueAsInstance
    val appInfo = appBindData?.get("android.app.ActivityThread\$AppBindData", "appInfo")
      ?.valueAsInstance

    return appInfo?.get(
      "android.content.pm.ApplicationInfo", "processName"
    )?.valueAsInstance?.readAsJavaString() ?: "Unknown"
  }
}