[FileEncap6] Extract Uploader class

Gerrit was stuck on original change I9ef4eb7450

Change-Id: I6d4ee686944074779aca5b09b018782c7033874d

java/src/com/android/inputmethod/research/Uploader.java

@@ -0,0 +1,187 @@
+/*
+ * 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.Manifest;
+import android.app.AlarmManager;
+import android.content.Context;
+import android.content.Intent;
+import android.content.IntentFilter;
+import android.content.pm.PackageManager;
+import android.net.ConnectivityManager;
+import android.net.NetworkInfo;
+import android.os.BatteryManager;
+import android.text.TextUtils;
+import android.util.Log;
+
+import com.android.inputmethod.latin.R;
+import com.android.inputmethod.latin.define.ProductionFlag;
+
+import java.io.BufferedReader;
+import java.io.File;
+import java.io.FileFilter;
+import java.io.FileInputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.InputStreamReader;
+import java.io.OutputStream;
+import java.net.HttpURLConnection;
+import java.net.MalformedURLException;
+import java.net.URL;
+
+/**
+ * Manages the uploading of ResearchLog files.
+ */
+public final class Uploader {
+    private static final String TAG = Uploader.class.getSimpleName();
+    private static final boolean DEBUG = false && ProductionFlag.IS_EXPERIMENTAL_DEBUG;
+    // Set IS_INHIBITING_AUTO_UPLOAD to true for local testing
+    private static final boolean IS_INHIBITING_AUTO_UPLOAD = false
+            && ProductionFlag.IS_EXPERIMENTAL_DEBUG;  // Force false for non-debug builds
+    private static final int BUF_SIZE = 1024 * 8;
+
+    private final Context mContext;
+    private final File mFilesDir;
+    private final URL mUrl;
+
+    public Uploader(final Context context) {
+        mContext = context;
+        mFilesDir = context.getFilesDir();
+
+        final String urlString = context.getString(R.string.research_logger_upload_url);
+        if (TextUtils.isEmpty(urlString)) {
+            mUrl = null;
+            return;
+        }
+        URL url = null;
+        try {
+            url = new URL(urlString);
+        } catch (final MalformedURLException e) {
+            Log.e(TAG, "Bad URL for uploading", e);
+        }
+        mUrl = url;
+    }
+
+    public boolean isPossibleToUpload() {
+        return hasUploadingPermission() && mUrl != null && !IS_INHIBITING_AUTO_UPLOAD;
+    }
+
+    private boolean hasUploadingPermission() {
+        final PackageManager packageManager = mContext.getPackageManager();
+        return packageManager.checkPermission(Manifest.permission.INTERNET,
+                mContext.getPackageName()) == PackageManager.PERMISSION_GRANTED;
+    }
+
+    public boolean isConvenientToUpload() {
+        return isExternallyPowered() && hasWifiConnection();
+    }
+
+    private boolean isExternallyPowered() {
+        final Intent intent = mContext.registerReceiver(null, new IntentFilter(
+                Intent.ACTION_BATTERY_CHANGED));
+        final int pluggedState = intent.getIntExtra(BatteryManager.EXTRA_PLUGGED, -1);
+        return pluggedState == BatteryManager.BATTERY_PLUGGED_AC
+                || pluggedState == BatteryManager.BATTERY_PLUGGED_USB;
+    }
+
+    private boolean hasWifiConnection() {
+        final ConnectivityManager manager =
+                (ConnectivityManager) mContext.getSystemService(Context.CONNECTIVITY_SERVICE);
+        final NetworkInfo wifiInfo = manager.getNetworkInfo(ConnectivityManager.TYPE_WIFI);
+        return wifiInfo.isConnected();
+    }
+
+    public void doUpload() {
+        if (mFilesDir == null) {
+            return;
+        }
+        final File[] files = mFilesDir.listFiles(new FileFilter() {
+            @Override
+            public boolean accept(final File pathname) {
+                return pathname.getName().startsWith(ResearchLogger.LOG_FILENAME_PREFIX)
+                        && !pathname.canWrite();
+            }
+        });
+        // TODO: Remove local variable
+        boolean success = true;
+        if (files.length == 0) {
+            success = false;
+        }
+        for (final File file : files) {
+            if (!uploadFile(file)) {
+                success = false;
+            }
+        }
+    }
+
+    private boolean uploadFile(final File file) {
+        if (DEBUG) {
+            Log.d(TAG, "attempting upload of " + file.getAbsolutePath());
+        }
+        boolean success = false;
+        final int contentLength = (int) file.length();
+        HttpURLConnection connection = null;
+        InputStream fileInputStream = null;
+        try {
+            fileInputStream = new FileInputStream(file);
+            connection = (HttpURLConnection) mUrl.openConnection();
+            connection.setRequestMethod("PUT");
+            connection.setDoOutput(true);
+            connection.setFixedLengthStreamingMode(contentLength);
+            final OutputStream outputStream = connection.getOutputStream();
+            final byte[] buf = new byte[BUF_SIZE];
+            int numBytesRead;
+            while ((numBytesRead = fileInputStream.read(buf)) != -1) {
+                outputStream.write(buf, 0, numBytesRead);
+                if (DEBUG) {
+                    Log.d(TAG, new String(buf));
+                }
+            }
+            if (connection.getResponseCode() != HttpURLConnection.HTTP_OK) {
+                Log.d(TAG, "upload failed: " + connection.getResponseCode());
+                final InputStream netInputStream = connection.getInputStream();
+                final BufferedReader reader = new BufferedReader(new InputStreamReader(
+                        netInputStream));
+                String line;
+                while ((line = reader.readLine()) != null) {
+                    Log.d(TAG, "| " + reader.readLine());
+                }
+                reader.close();
+                return success;
+            }
+            file.delete();
+            success = true;
+            if (DEBUG) {
+                Log.d(TAG, "upload successful");
+            }
+        } catch (final IOException e) {
+            Log.e(TAG, "Exception uploading file", e);
+        } finally {
+            if (fileInputStream != null) {
+                try {
+                    fileInputStream.close();
+                } catch (final IOException e) {
+                    Log.e(TAG, "Exception closing uploaded file", e);
+                }
+            }
+            if (connection != null) {
+                connection.disconnect();
+            }
+        }
+        return success;
+    }
+}

java/src/com/android/inputmethod/research/UploaderService.java

@@ -16,91 +16,36 @@
 
 package com.android.inputmethod.research;
 
-import android.Manifest;
 import android.app.AlarmManager;
 import android.app.IntentService;
-import android.content.Context;
 import android.content.Intent;
-import android.content.IntentFilter;
-import android.content.pm.PackageManager;
-import android.net.ConnectivityManager;
-import android.net.NetworkInfo;
-import android.os.BatteryManager;
 import android.os.Bundle;
-import android.util.Log;
 
-import com.android.inputmethod.latin.R;
 import com.android.inputmethod.latin.define.ProductionFlag;
 
-import java.io.BufferedReader;
+/**
-import java.io.File;
+ * Service to invoke the uploader.
-import java.io.FileFilter;
+ *
-import java.io.FileInputStream;
+ * Can be regularly invoked, invoked on boot, etc.
-import java.io.IOException;
+ */
-import java.io.InputStream;
-import java.io.InputStreamReader;
-import java.io.OutputStream;
-import java.net.HttpURLConnection;
-import java.net.MalformedURLException;
-import java.net.URL;
-
 public final class UploaderService extends IntentService {
     private static final String TAG = UploaderService.class.getSimpleName();
     private static final boolean DEBUG = false && ProductionFlag.IS_EXPERIMENTAL_DEBUG;
-    // Set IS_INHIBITING_AUTO_UPLOAD to true for local testing
-    private static final boolean IS_INHIBITING_AUTO_UPLOAD = false
-            && ProductionFlag.IS_EXPERIMENTAL_DEBUG;  // Force false in production
     public static final long RUN_INTERVAL = AlarmManager.INTERVAL_HOUR;
     public static final String EXTRA_UPLOAD_UNCONDITIONALLY = UploaderService.class.getName()
             + ".extra.UPLOAD_UNCONDITIONALLY";
-    private static final int BUF_SIZE = 1024 * 8;
     protected static final int TIMEOUT_IN_MS = 1000 * 4;
 
-    private File mFilesDir;
-    private URL mUrl;
-
     public UploaderService() {
         super("Research Uploader Service");
     }
 
     @Override
-    public void onCreate() {
+    protected void onHandleIntent(final Intent intent) {
-        super.onCreate();
+        final Uploader uploader = new Uploader(this);
-
+        if (!uploader.isPossibleToUpload()) return;
-        mFilesDir = null;
+        if (isUploadingUnconditionally(intent.getExtras()) || uploader.isConvenientToUpload()) {
-        mUrl = null;
+            uploader.doUpload();
-
-        if (!hasUploadingPermission()) {
-            return;
-        }
-
-        try {
-            final String urlString = getString(R.string.research_logger_upload_url);
-            if (urlString == null || urlString.equals("")) {
-                return;
-            }
-            mFilesDir = getFilesDir();
-            mUrl = new URL(urlString);
-        } catch (MalformedURLException e) {
-            e.printStackTrace();
-        }
-    }
-
-    public boolean isPossibleToUpload() {
-        return hasUploadingPermission() && mUrl != null && !IS_INHIBITING_AUTO_UPLOAD;
-    }
-
-    private boolean hasUploadingPermission() {
-        final PackageManager packageManager = getPackageManager();
-        return packageManager.checkPermission(Manifest.permission.INTERNET,
-                getPackageName()) == PackageManager.PERMISSION_GRANTED;
-    }
-
-    @Override
-    protected void onHandleIntent(Intent intent) {
-        if (!isPossibleToUpload()) return;
-        if (isUploadingUnconditionally(intent.getExtras()) || isConvenientToUpload()) {
-            doUpload();
         }
     }
 
@@ -111,101 +56,4 @@ public final class UploaderService extends IntentService {
         }
         return false;
     }
-
-    private boolean isConvenientToUpload() {
-        return isExternallyPowered() && hasWifiConnection();
-    }
-
-    private boolean isExternallyPowered() {
-        final Intent intent = registerReceiver(null, new IntentFilter(
-                Intent.ACTION_BATTERY_CHANGED));
-        final int pluggedState = intent.getIntExtra(BatteryManager.EXTRA_PLUGGED, -1);
-        return pluggedState == BatteryManager.BATTERY_PLUGGED_AC
-                || pluggedState == BatteryManager.BATTERY_PLUGGED_USB;
-    }
-
-    private boolean hasWifiConnection() {
-        final ConnectivityManager manager =
-                (ConnectivityManager) getSystemService(Context.CONNECTIVITY_SERVICE);
-        final NetworkInfo wifiInfo = manager.getNetworkInfo(ConnectivityManager.TYPE_WIFI);
-        return wifiInfo.isConnected();
-    }
-
-    private void doUpload() {
-        if (mFilesDir == null) {
-            return;
-        }
-        final File[] files = mFilesDir.listFiles(new FileFilter() {
-            @Override
-            public boolean accept(File pathname) {
-                return pathname.getName().startsWith(ResearchLogger.LOG_FILENAME_PREFIX)
-                        && !pathname.canWrite();
-            }
-        });
-        boolean success = true;
-        if (files.length == 0) {
-            success = false;
-        }
-        for (final File file : files) {
-            if (!uploadFile(file)) {
-                success = false;
-            }
-        }
-    }
-
-    private boolean uploadFile(File file) {
-        if (DEBUG) {
-            Log.d(TAG, "attempting upload of " + file.getAbsolutePath());
-        }
-        boolean success = false;
-        final int contentLength = (int) file.length();
-        HttpURLConnection connection = null;
-        InputStream fileInputStream = null;
-        try {
-            fileInputStream = new FileInputStream(file);
-            connection = (HttpURLConnection) mUrl.openConnection();
-            connection.setRequestMethod("PUT");
-            connection.setDoOutput(true);
-            connection.setFixedLengthStreamingMode(contentLength);
-            final OutputStream os = connection.getOutputStream();
-            final byte[] buf = new byte[BUF_SIZE];
-            int numBytesRead;
-            while ((numBytesRead = fileInputStream.read(buf)) != -1) {
-                os.write(buf, 0, numBytesRead);
-                if (DEBUG) {
-                    Log.d(TAG, new String(buf));
-                }
-            }
-            if (connection.getResponseCode() != HttpURLConnection.HTTP_OK) {
-                Log.d(TAG, "upload failed: " + connection.getResponseCode());
-                InputStream netInputStream = connection.getInputStream();
-                BufferedReader reader = new BufferedReader(new InputStreamReader(netInputStream));
-                String line;
-                while ((line = reader.readLine()) != null) {
-                    Log.d(TAG, "| " + reader.readLine());
-                }
-                reader.close();
-                return success;
-            }
-            file.delete();
-            success = true;
-            if (DEBUG) {
-                Log.d(TAG, "upload successful");
-            }
-        } catch (Exception e) {
-            e.printStackTrace();
-        } finally {
-            if (fileInputStream != null) {
-                try {
-                    fileInputStream.close();
-                } catch (IOException e) {
-                    e.printStackTrace();
-                }
-            }
-            if (connection != null) {
-                connection.disconnect();
-            }
-        }
-        return success;
-    }
 }