Merge "StorageManager: Improve exception handling"

import java.io.BufferedReader;

import java.io.File;

import java.io.FileInputStream;

import java.io.FileNotFoundException;

import java.io.IOException;

import java.io.InputStreamReader;

import java.lang.ref.WeakReference;

        try (final FileInputStream fis = new FileInputStream(path);

                final BufferedReader reader = new BufferedReader(new InputStreamReader(fis));) {

            return Long.parseLong(reader.readLine());

        } catch (FileNotFoundException e) {

            // This is expected since we are trying to parse multiple paths.

            Slog.i(TAG, "readLong(): Path doesn't exist: " + path + ": " + e);

            return 0;

        } catch (NumberFormatException e) {

            Slog.e(TAG, "readLong(): Could not parse " + path + ": " + e);

            return 0;

        } catch (Exception e) {

            Slog.w(TAG, "readLong(): could not read " + path + ": " + e);

            Slog.e(TAG, "readLong(): Unknown exception while opening " + path + ": " + e);

            return 0;

       }

    }