1 files changed, 86 insertions, 0 deletions
diff --git a/src/fetch-file.vala b/src/fetch-file.vala
new file mode 100644
index 0000000..1811cc1
--- /dev/null
+++ b/src/fetch-file.vala
@@ -0,0 +1,86 @@
+/*
+ * Copyright (C) 2010 Canonical, Ltd.
+ *
+ * This library is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License
+ * version 3.0 as published by the Free Software Foundation.
+ *
+ * This library 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 Lesser General Public License version 3.0 for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library. If not, see
+ * <http://www.gnu.org/licenses/>.
+ *
+ * Authors
+ * 			Gordon Allott <gord.allott@canonical.com>
+ *			Conor Curran <conor.curran@canonical.com>
+ */
+
+public class FetchFile : Object
+{
+  /* public variables */
+  public string uri {get; construct;}
+	public string intended_property {get; construct;}
+
+  /* private variables */
+  private DataInputStream stream;
+  private File? file;
+  private ByteArray data;
+
+  /* public signals */
+  public signal void failed ();
+  public signal void completed (ByteArray data, string property);
+
+  public FetchFile (string uri, string prop)
+  {
+    Object (uri: uri, intended_property: prop);
+  }
+
+  construct
+  {
+    this.file = File.new_for_uri(this.uri);
+    this.data = new ByteArray ();
+  }
+
+  public async void fetch_data ()
+  {
+    try {
+      this.stream = new DataInputStream(this.file.read(null));
+      this.stream.set_byte_order (DataStreamByteOrder.LITTLE_ENDIAN);
+    } catch (GLib.Error e) {
+      this.failed ();
+    }
+    this.read_something_async ();
+  }
+
+  private async void read_something_async ()
+  {
+    ssize_t size = 1024;
+    uint8[] buffer = new uint8[size];
+
+    ssize_t bufsize = 1;
+    do {
+      try {
+        bufsize = yield this.stream.read_async (buffer, size, GLib.Priority.DEFAULT, null);
+        if (bufsize < 1) { break;}
+
+        if (bufsize != size)
+          {
+            uint8[] cpybuf = new uint8[bufsize];
+            Memory.copy (cpybuf, buffer, bufsize);
+            this.data.append (cpybuf);
+          }
+        else
+          {
+            this.data.append (buffer);
+          }
+      } catch (Error e) {
+        this.failed ();
+      }
+    } while (bufsize > 0);
+    this.completed (this.data, this.intended_property);
+  }
+}