[Rlog27] Add replay capability

- Add support for replaying log files to the ResearchLogger.  This will let
  users preview data that they choose to upload.
- When the user explicitly requests that the system record their action, it
  will record everything up to, and including, the motion involved in shutting
  off the recording.  This change also removes the stop-recording motion
  commands.

Change-Id: Ib1df383bbf1881512cb111fab9f6749c25e436ba

1 files changed, 113 insertions, 0 deletions

diff --git a/java/src/com/android/inputmethod/research/MotionEventReader.java b/java/src/com/android/inputmethod/research/MotionEventReader.java
new file mode 100644
index 000000000..36e75be1c
--- /dev/null
+++ b/java/src/com/android/inputmethod/research/MotionEventReader.java
@@ -0,0 +1,113 @@
+/*
+ * Copyright (C) 2013 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+
+package com.android.inputmethod.research;
+
+import android.util.JsonReader;
+import android.util.Log;
+import android.view.MotionEvent;
+
+import com.android.inputmethod.latin.define.ProductionFlag;
+
+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.util.ArrayList;
+
+public class MotionEventReader {
+    private static final String TAG = MotionEventReader.class.getSimpleName();
+    private static final boolean DEBUG = false && ProductionFlag.IS_EXPERIMENTAL_DEBUG;
+
+    public ReplayData readMotionEventData(final File file) {
+        final ReplayData replayData = new ReplayData();
+        try {
+            // Read file
+            final JsonReader jsonReader = new JsonReader(new BufferedReader(new InputStreamReader(
+                    new FileInputStream(file))));
+            jsonReader.beginArray();
+            while (jsonReader.hasNext()) {
+                readLogStatement(jsonReader, replayData);
+            }
+            jsonReader.endArray();
+        } catch (FileNotFoundException e) {
+            e.printStackTrace();
+        } catch (IOException e) {
+            e.printStackTrace();
+        }
+        return replayData;
+    }
+
+    static class ReplayData {
+        final ArrayList<Integer> mActions = new ArrayList<Integer>();
+        final ArrayList<Integer> mXCoords = new ArrayList<Integer>();
+        final ArrayList<Integer> mYCoords = new ArrayList<Integer>();
+        final ArrayList<Long> mTimes = new ArrayList<Long>();
+    }
+
+    private void readLogStatement(final JsonReader jsonReader, final ReplayData replayData)
+            throws IOException {
+        String logStatementType = null;
+        Integer actionType = null;
+        Integer x = null;
+        Integer y = null;
+        Long time = null;
+        boolean loggingRelated = false;
+
+        jsonReader.beginObject();
+        while (jsonReader.hasNext()) {
+            final String key = jsonReader.nextName();
+            if (key.equals("_ty")) {
+                logStatementType = jsonReader.nextString();
+            } else if (key.equals("_ut")) {
+                time = jsonReader.nextLong();
+            } else if (key.equals("x")) {
+                x = jsonReader.nextInt();
+            } else if (key.equals("y")) {
+                y = jsonReader.nextInt();
+            } else if (key.equals("action")) {
+                final String s = jsonReader.nextString();
+                if (s.equals("UP")) {
+                    actionType = MotionEvent.ACTION_UP;
+                } else if (s.equals("DOWN")) {
+                    actionType = MotionEvent.ACTION_DOWN;
+                } else if (s.equals("MOVE")) {
+                    actionType = MotionEvent.ACTION_MOVE;
+                }
+            } else if (key.equals("loggingRelated")) {
+                loggingRelated = jsonReader.nextBoolean();
+            } else {
+                if (DEBUG) {
+                    Log.w(TAG, "Unknown JSON key in LogStatement: " + key);
+                }
+                jsonReader.skipValue();
+            }
+        }
+        jsonReader.endObject();
+
+        if (logStatementType != null && time != null && x != null && y != null && actionType != null
+                && logStatementType.equals("MainKeyboardViewProcessMotionEvent")
+                && !loggingRelated) {
+            replayData.mActions.add(actionType);
+            replayData.mXCoords.add(x);
+            replayData.mYCoords.add(y);
+            replayData.mTimes.add(time);
+        }
+    }
+
+}