BookCollectionShadow: a wrapper for LibraryInterface

src/org/geometerplus/android/fbreader/libraryService/BookCollectionShadow.java

@@ -0,0 +1,64 @@
+/*
+ * Copyright (C) 2007-2013 Geometer Plus <contact@geometerplus.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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 this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ * 02110-1301, USA.
+ */
+
+package org.geometerplus.android.fbreader.libraryService;
+
+import android.content.*;
+import android.os.IBinder;
+import android.os.RemoteException;
+
+import org.geometerplus.fbreader.library.*;
+
+public class BookCollectionShadow implements IBookCollection, ServiceConnection {
+	private final Context myContext;
+	private volatile LibraryInterface myInterface;
+
+	public BookCollectionShadow(Context context) {
+		myContext = context;
+	}
+
+	public void bindToService() {
+		myContext.bindService(
+			new Intent(myContext, LibraryService.class),
+			this,
+			LibraryService.BIND_AUTO_CREATE
+		);
+	}
+
+	public synchronized Book getBookById(long id) {
+		if (myInterface == null) {
+			return null;
+		}
+		try {
+			return BookSerializerUtil.deserialize(myInterface.bookById(id));
+		} catch (RemoteException e) {
+			return null;
+		}
+	}
+
+	// method from ServiceConnection interface
+	public synchronized void onServiceConnected(ComponentName name, IBinder service) {
+		myInterface = LibraryInterface.Stub.asInterface(service);
+	}
+
+	// method from ServiceConnection interface
+	public synchronized void onServiceDisconnected(ComponentName name) {
+		myInterface = null;
+	}
+}