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/*
* Copyright (C) 2010 Google 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.
*
* 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 "IDBDatabase.h"
#include "IDBAny.h"
#include "IDBDatabaseError.h"
#include "IDBDatabaseException.h"
#include "IDBFactoryBackendInterface.h"
#include "IDBIndex.h"
#include "IDBObjectStore.h"
#include "IDBRequest.h"
#include "IDBTransaction.h"
#include "ScriptExecutionContext.h"
#include <limits>
#if ENABLE(INDEXED_DATABASE)
namespace WebCore {
// FIXME: We need to spec this differently.
const unsigned long defaultTimeout = 0; // Infinite.
IDBDatabase::IDBDatabase(PassRefPtr<IDBDatabaseBackendInterface> backend)
: m_backend(backend)
{
// We pass a reference of this object before it can be adopted.
relaxAdoptionRequirement();
}
IDBDatabase::~IDBDatabase()
{
}
void IDBDatabase::setSetVersionTransaction(IDBTransactionBackendInterface* transaction)
{
m_setVersionTransaction = transaction;
}
PassRefPtr<IDBObjectStore> IDBDatabase::createObjectStore(const String& name, const OptionsObject& options, ExceptionCode& ec)
{
if (!m_setVersionTransaction) {
ec = IDBDatabaseException::NOT_ALLOWED_ERR;
return 0;
}
String keyPath;
options.getKeyString("keyPath", keyPath);
bool autoIncrement = false;
options.getKeyBool("autoIncrement", autoIncrement);
// FIXME: Look up evictable and pass that on as well.
if (autoIncrement) {
// FIXME: Implement support for auto increment.
ec = IDBDatabaseException::UNKNOWN_ERR;
return 0;
}
RefPtr<IDBObjectStoreBackendInterface> objectStore = m_backend->createObjectStore(name, keyPath, autoIncrement, m_setVersionTransaction.get(), ec);
if (!objectStore) {
ASSERT(ec);
return 0;
}
return IDBObjectStore::create(objectStore.release(), m_setVersionTransaction.get());
}
void IDBDatabase::deleteObjectStore(const String& name, ExceptionCode& ec)
{
if (!m_setVersionTransaction) {
ec = IDBDatabaseException::NOT_ALLOWED_ERR;
return;
}
m_backend->deleteObjectStore(name, m_setVersionTransaction.get(), ec);
}
PassRefPtr<IDBRequest> IDBDatabase::setVersion(ScriptExecutionContext* context, const String& version, ExceptionCode& ec)
{
RefPtr<IDBRequest> request = IDBRequest::create(context, IDBAny::create(this), 0);
m_backend->setVersion(version, request, ec);
return request;
}
PassRefPtr<IDBTransaction> IDBDatabase::transaction(ScriptExecutionContext* context, const OptionsObject& options, ExceptionCode& ec)
{
RefPtr<DOMStringList> storeNames = options.getKeyDOMStringList("objectStoreNames");
if (!storeNames) {
storeNames = DOMStringList::create();
String storeName;
if (options.getKeyString("objectStoreNames", storeName))
storeNames->append(storeName);
}
// Gets cast to an unsigned short.
int32_t mode = IDBTransaction::READ_ONLY;
options.getKeyInt32("mode", mode);
if (mode != IDBTransaction::READ_WRITE && mode != IDBTransaction::READ_ONLY) {
// FIXME: May need to change when specced: http://www.w3.org/Bugs/Public/show_bug.cgi?id=11406
ec = IDBDatabaseException::CONSTRAINT_ERR;
return 0;
}
// Gets cast to an unsigned long.
// FIXME: The spec needs to be updated on this. It should probably take a double.
int32_t timeout = defaultTimeout;
options.getKeyInt32("timeout", timeout);
int64_t unsignedLongMax = std::numeric_limits<unsigned long>::max();
if (timeout < 0 || timeout > unsignedLongMax)
timeout = defaultTimeout; // Ignore illegal values.
// We need to create a new transaction synchronously. Locks are acquired asynchronously. Operations
// can be queued against the transaction at any point. They will start executing as soon as the
// appropriate locks have been acquired.
// Also note that each backend object corresponds to exactly one IDBTransaction object.
RefPtr<IDBTransactionBackendInterface> transactionBackend = m_backend->transaction(storeNames.get(), mode, timeout, ec);
if (!transactionBackend) {
ASSERT(ec);
return 0;
}
RefPtr<IDBTransaction> transaction = IDBTransaction::create(context, transactionBackend, this);
transactionBackend->setCallbacks(transaction.get());
return transaction.release();
}
void IDBDatabase::close()
{
m_backend->close();
}
} // namespace WebCore
#endif // ENABLE(INDEXED_DATABASE)
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