01: /* Copyright (C) 2004 - 2007 db4objects Inc. http://www.db4o.com
02:
03: This file is part of the db4o open source object database.
04:
05: db4o is free software; you can redistribute it and/or modify it under
06: the terms of version 2 of the GNU General Public License as published
07: by the Free Software Foundation and as clarified by db4objects' GPL
08: interpretation policy, available at
09: http://www.db4o.com/about/company/legalpolicies/gplinterpretation/
10: Alternatively you can write to db4objects, Inc., 1900 S Norfolk Street,
11: Suite 350, San Mateo, CA 94403, USA.
12:
13: db4o is distributed in the hope that it will be useful, but WITHOUT ANY
14: WARRANTY; without even the implied warranty of MERCHANTABILITY or
15: FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
16: for more details.
17:
18: You should have received a copy of the GNU General Public License along
19: with this program; if not, write to the Free Software Foundation, Inc.,
20: 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
21: package com.db4o.db4ounit.common.acid;
22:
23: import com.db4o.*;
24: import com.db4o.io.*;
25:
26: public class CrashSimulatingIoAdapter extends VanillaIoAdapter {
27:
28: CrashSimulatingBatch batch;
29:
30: long curPos;
31:
32: public CrashSimulatingIoAdapter(IoAdapter delegateAdapter) {
33: super (delegateAdapter);
34: batch = new CrashSimulatingBatch();
35: }
36:
37: private CrashSimulatingIoAdapter(IoAdapter delegateAdapter,
38: String path, boolean lockFile, long initialLength,
39: boolean readOnly, CrashSimulatingBatch batch)
40: throws Db4oIOException {
41: super (delegateAdapter.open(path, lockFile, initialLength,
42: readOnly));
43: this .batch = batch;
44: }
45:
46: public IoAdapter open(String path, boolean lockFile,
47: long initialLength, boolean readOnly)
48: throws Db4oIOException {
49: return new CrashSimulatingIoAdapter(_delegate, path, lockFile,
50: initialLength, readOnly, batch);
51: }
52:
53: public void seek(long pos) throws Db4oIOException {
54: curPos = pos;
55: super .seek(pos);
56: }
57:
58: public void write(byte[] buffer, int length) throws Db4oIOException {
59: super .write(buffer, length);
60: byte[] copy = new byte[buffer.length];
61: System.arraycopy(buffer, 0, copy, 0, buffer.length);
62: batch.add(copy, curPos, length);
63: }
64:
65: public void sync() throws Db4oIOException {
66: super.sync();
67: batch.sync();
68: }
69: }
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