Usage of new API, cleanups (reduced)

src/org/adblockplus/android/AndroidWebRequest.java

+/*
+ * This file is part of Adblock Plus <http://adblockplus.org/>,
+ * Copyright (C) 2006-2014 Eyeo GmbH
+ *
+ * Adblock Plus is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 3 as
+ * published by the Free Software Foundation.
+ *
+ * Adblock Plus is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with Adblock Plus.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package org.adblockplus.android;
+
+import java.io.InputStream;
+import java.net.HttpURLConnection;
+import java.net.URL;
+import java.util.List;
+
+import org.adblockplus.libadblockplus.AdblockPlusException;
+import org.adblockplus.libadblockplus.HeaderEntry;
+import org.adblockplus.libadblockplus.ServerResponse;
+import org.adblockplus.libadblockplus.WebRequest;
+import org.adblockplus.libadblockplus.ServerResponse.NsStatus;
+
+import android.util.Log;
+
+public class AndroidWebRequest extends WebRequest
+{
+  public final String TAG = Utils.getTag(WebRequest.class);
+
+  private static final int INITIAL_BUFFER_SIZE = 65536;
+  private static final int BUFFER_GROWTH_DELTA = 65536;
+
+  @Override
+  public ServerResponse httpGET(final String urlStr, final List<HeaderEntry> headers)
+  {
+    try
+    {
+      final URL url = new URL(urlStr);
+      Log.d(this.TAG, "Downloading from: " + url);
+
+      final HttpURLConnection connection = (HttpURLConnection) url.openConnection();
+      connection.setRequestMethod("GET");
+      connection.connect();
+
+      final ServerResponse response = new ServerResponse();
+      response.setResponseStatus(connection.getResponseCode());
+
+      if (response.getResponseStatus() == 200)
+      {
+        final InputStream in = connection.getInputStream();
+
+        final byte[] buffer = new byte[4096];
+
+        byte[] out = new byte[INITIAL_BUFFER_SIZE];
+
+        int pos = 0;
+        for (;;)
+        {
+          final int read = in.read(buffer);
+          if (read < 0)
+          {
+            break;
+          }
+          if (pos + read > out.length)
+          {
+            final byte[] old = out;
+            out = new byte[out.length + BUFFER_GROWTH_DELTA];
+            System.arraycopy(old, 0, out, 0, pos);
+          }
+          System.arraycopy(buffer, 0, out, pos, read);
+          pos += read;
+        }
+
+        connection.disconnect();
+
+        response.setStatus(NsStatus.OK);
+        response.setResponse(new String(out, 0, pos, "utf-8"));
+      }
+      else
+      {
+        response.setStatus(NsStatus.ERROR_FAILURE);
+      }
+      return response;
+    }
+    catch (final Throwable t)
+    {
+      throw new AdblockPlusException("WebRequest failed", t);
+    }
+  }
+}