auto import from //depot/cupcake/@135843

1 files changed, 77 insertions, 0 deletions

diff --git a/WebCore/storage/ChangeVersionWrapper.cpp b/WebCore/storage/ChangeVersionWrapper.cpp
new file mode 100644
index 0000000..54c317c
--- /dev/null
+++ b/WebCore/storage/ChangeVersionWrapper.cpp
@@ -0,0 +1,77 @@
+/*
+ * Copyright (C) 2007 Apple Inc. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1.  Redistributions of source code must retain the above copyright
+ *     notice, this list of conditions and the following disclaimer.
+ * 2.  Redistributions in binary form must reproduce the above copyright
+ *     notice, this list of conditions and the following disclaimer in the
+ *     documentation and/or other materials provided with the distribution.
+ * 3.  Neither the name of Apple Computer, Inc. ("Apple") nor the names of
+ *     its contributors may be used to endorse or promote products derived
+ *     from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+#include "config.h"
+#include "ChangeVersionWrapper.h"
+
+#include "Database.h"
+
+namespace WebCore {
+
+ChangeVersionWrapper::ChangeVersionWrapper(const String& oldVersion, const String& newVersion)
+    : m_oldVersion(oldVersion.copy())
+    , m_newVersion(newVersion.copy())
+{
+}
+
+bool ChangeVersionWrapper::performPreflight(SQLTransaction* transaction)
+{
+    ASSERT(transaction && transaction->database());
+    
+    String actualVersion;
+    
+    if (!transaction->database()->getVersionFromDatabase(actualVersion)) {
+        LOG_ERROR("Unable to retrieve actual current version from database");
+        m_sqlError = SQLError::create(0, "unable to verify current version of database");
+        return false;
+    }
+    
+    if (actualVersion != m_oldVersion) {
+        LOG_ERROR("Old version doesn't match actual version");
+        m_sqlError = SQLError::create(2, "current version of the database and `oldVersion` argument do not match");
+        return false;
+    }
+    
+    return true;
+}
+
+bool ChangeVersionWrapper::performPostflight(SQLTransaction* transaction)
+{
+    ASSERT(transaction && transaction->database());
+
+    if (!transaction->database()->setVersionInDatabase(m_newVersion)) {
+        LOG_ERROR("Unable to set new version in database");
+        m_sqlError = SQLError::create(0, "unable to set new version in database");
+        return false;
+    }
+
+    transaction->database()->setExpectedVersion(m_newVersion);
+    
+    return true;
+}
+    
+} // namespace WebCore