Issue 4231 - Fix unstable FilterEngineTest.testSetRemoveFilterChangeCallback

libadblockplus-android/src/org/adblockplus/libadblockplus/FileSystem.java

Index: libadblockplus-android/src/org/adblockplus/libadblockplus/FileSystem.java
diff --git a/libadblockplus-android/src/org/adblockplus/libadblockplus/LogSystem.java b/libadblockplus-android/src/org/adblockplus/libadblockplus/FileSystem.java
similarity index 58%
copy from libadblockplus-android/src/org/adblockplus/libadblockplus/LogSystem.java
copy to libadblockplus-android/src/org/adblockplus/libadblockplus/FileSystem.java
index 548811c1cba44b981c76083afc8017f940028e50..92172ab8ff6ab10e3f57dd75a22b7f7a23e4398c 100644
--- a/libadblockplus-android/src/org/adblockplus/libadblockplus/LogSystem.java
+++ b/libadblockplus-android/src/org/adblockplus/libadblockplus/FileSystem.java
@@ -17,7 +17,7 @@
 
 package org.adblockplus.libadblockplus;
 
-public abstract class LogSystem implements Disposable
+public abstract class FileSystem implements Disposable
 {
   private final Disposer disposer;
   protected final long ptr;
@@ -28,18 +28,62 @@ public abstract class LogSystem implements Disposable
     registerNatives();
   }
 
-  public LogSystem()
+  public FileSystem()
   {
     this.ptr = ctor(this);
     this.disposer = new Disposer(this, new DisposeWrapper(this.ptr));
   }
 
-  public static enum LogLevel
+  public static class StatResult
   {
-    TRACE, LOG, INFO, WARN, ERROR;
+    private boolean exists;
+
+    public boolean exists()
+    {
+      return exists;
+    }
+
+    private boolean isDirectory;
+
+    public boolean isDirectory()
+    {
+      return isDirectory;
+    }
+
+    private boolean isFile;
+
+    public boolean isFile()
+    {
+      return isFile;
+    }
+
+    private long lastModified;
+
+    public long getLastModified()
+    {
+      return lastModified;
+    }
+
+    public StatResult(boolean exists, boolean isDirectory, boolean isFile, long lastModified)
+    {
+      this.exists = exists;
+      this.isDirectory = isDirectory;
+      this.isFile = isFile;
+      this.lastModified = lastModified;
+    }
   }
 
-  public abstract void logCallback(LogLevel level, String message, String source);
+  public abstract String read(String path);
+
+  public abstract void write(String path, String data);
+
+  public abstract void move(String fromPath, String toPath);
+
+  public abstract void remove(String path);
+
+  public abstract StatResult stat(String path);
+
+  public abstract String resolve(String path);
 
   @Override
   public void dispose()