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Bug 1154325 P1 Add convenience routines to bind and get Blobs as strings. r=asuth

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This commit is contained in:
Ben Kelly 2015-04-29 09:03:15 -07:00
parent 70c4125c44
commit 9f4d2c5641
10 changed files with 170 additions and 4 deletions
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8
storage/public/mozIStorageBaseStatement.idl
View File

@ -19,7 +19,7 @@ interface mozIStorageBindingParamsArray;
* (mozIStorageStatement) that can be used for both synchronous and asynchronous
* purposes.
*/
[scriptable, uuid(5d34f333-ed3f-4aa2-ba51-f2a8b0cfa33a)]
[scriptable, uuid(16ca67aa-1325-43e2-aac7-859afd1590b2)]
interface mozIStorageBaseStatement : mozIStorageBindingParams {
/**
* Finalizes a statement so you can successfully close a database connection.
@ -67,6 +67,12 @@ interface mozIStorageBaseStatement : mozIStorageBindingParams {
in unsigned long aParamIndex,
[array,const,size_is(aValueSize)] in octet aValue,
in unsigned long aValueSize);
[deprecated] void bindStringAsBlobParameter(
in unsigned long aParamIndex,
in AString aValue);
[deprecated] void bindUTF8StringAsBlobParameter(
in unsigned long aParamIndex,
in AUTF8String aValue);
[deprecated] void bindAdoptedBlobParameter(
in unsigned long aParamIndex,
[array,size_is(aValueSize)] in octet aValue,

12
storage/public/mozIStorageBindingParams.idl
View File

@ -8,7 +8,7 @@
interface nsIVariant;
[scriptable, uuid(7d8763ad-79d9-4674-ada1-37fd702af68c)]
[scriptable, uuid(2d09f42f-966e-4663-b4b3-b0c8676bf2bf)]
interface mozIStorageBindingParams : nsISupports {
/**
* Binds aValue to the parameter with the name aName.
@ -34,6 +34,11 @@ interface mozIStorageBindingParams : nsISupports {
void bindBlobByName(in AUTF8String aName,
[array, const, size_is(aValueSize)] in octet aValue,
in unsigned long aValueSize);
// Convenience routines for storing strings as blobs.
void bindStringAsBlobByName(in AUTF8String aName, in AString aValue);
void bindUTF8StringAsBlobByName(in AUTF8String aName, in AUTF8String aValue);
// The function adopts the storage for the provided blob. After calling
// this function, mozStorage will ensure that NS_Free is called on the
// underlying pointer.
@ -66,6 +71,11 @@ interface mozIStorageBindingParams : nsISupports {
void bindBlobByIndex(in unsigned long aIndex,
[array, const, size_is(aValueSize)] in octet aValue,
in unsigned long aValueSize);
// Convenience routines for storing strings as blobs.
void bindStringAsBlobByIndex(in unsigned long aIndex, in AString aValue);
void bindUTF8StringAsBlobByIndex(in unsigned long aIndex, in AUTF8String aValue);
// The function adopts the storage for the provided blob. After calling
// this function, mozStorage will ensure that NS_Free is called on the
// underlying pointer.

25
storage/public/mozIStorageStatement.idl
View File

@ -15,7 +15,7 @@
* A SQL statement that can be used for both synchronous and asynchronous
* purposes.
*/
[scriptable, uuid(b3c4476e-c490-4e3b-9db1-e2d3a6f0287c)]
[scriptable, uuid(5f567c35-6c32-4140-828c-683ea49cfd3a)]
interface mozIStorageStatement : mozIStorageBaseStatement {
/**
* Create a clone of this statement, by initializing a new statement
@ -207,6 +207,29 @@ interface mozIStorageStatement : mozIStorageBaseStatement {
* The contents of the BLOB. This will be NULL if aDataSize == 0.
*/
void getBlob(in unsigned long aIndex, out unsigned long aDataSize, [array,size_is(aDataSize)] out octet aData);
/**
* Retrieve the contents of a Blob column from the current result row as a
* string.
*
* @param aIndex
* 0-based colummn index.
* @return The value for the result Blob column interpreted as a String.
* No encoding conversion is performed.
*/
AString getBlobAsString(in unsigned long aIndex);
/**
* Retrieve the contents of a Blob column from the current result row as a
* UTF8 string.
*
* @param aIndex
* 0-based colummn index.
* @return The value for the result Blob column interpreted as a UTF8 String.
* No encoding conversion is performed.
*/
AUTF8String getBlobAsUTF8String(in unsigned long aIndex);
/**
* Check whether the given column in the current result row is NULL.
*

4
storage/public/mozIStorageValueArray.idl
View File

@ -14,7 +14,7 @@
* mozIStorageValueArray wraps an array of SQL values, such as a single database
* row.
*/
[scriptable, uuid(07b5b93e-113c-4150-863c-d247b003a55d)]
[scriptable, uuid(6e6306f4-ffa7-40f5-96ca-36159ce8f431)]
interface mozIStorageValueArray : nsISupports {
/**
* These type values are returned by getTypeOfIndex
@ -62,6 +62,8 @@ interface mozIStorageValueArray : nsISupports {
// data will be NULL if dataSize = 0
void getBlob(in unsigned long aIndex, out unsigned long aDataSize, [array,size_is(aDataSize)] out octet aData);
AString getBlobAsString(in unsigned long aIndex);
AUTF8String getBlobAsUTF8String(in unsigned long aIndex);
boolean getIsNull(in unsigned long aIndex);
/**

14
storage/src/StorageBaseStatementInternal.h
View File

@ -321,6 +321,20 @@ NS_DEFINE_STATIC_IID_ACCESSOR(StorageBaseStatementInternal,
const uint8_t *aValue, \
uint32_t aValueSize), \
(aWhere, aValue, aValueSize)) \
BIND_GEN_IMPL(_class, _optionalGuard, \
StringAsBlob, \
(const nsACString &aWhere, \
const nsAString& aValue), \
(uint32_t aWhere, \
const nsAString& aValue), \
(aWhere, aValue)) \
BIND_GEN_IMPL(_class, _optionalGuard, \
UTF8StringAsBlob, \
(const nsACString &aWhere, \
const nsACString& aValue), \
(uint32_t aWhere, \
const nsACString& aValue), \
(aWhere, aValue)) \
BIND_GEN_IMPL(_class, _optionalGuard, \
AdoptedBlob, \
(const nsACString &aWhere, \

12
storage/src/mozStorageArgValueArray.cpp
View File

@ -152,6 +152,18 @@ ArgValueArray::GetBlob(uint32_t aIndex,
return NS_OK;
}
NS_IMETHODIMP
ArgValueArray::GetBlobAsString(uint32_t aIndex, nsAString& aValue)
{
return DoGetBlobAsString(this, aIndex, aValue);
}
NS_IMETHODIMP
ArgValueArray::GetBlobAsUTF8String(uint32_t aIndex, nsACString& aValue)
{
return DoGetBlobAsString(this, aIndex, aValue);
}
NS_IMETHODIMP
ArgValueArray::GetIsNull(uint32_t aIndex,
bool *_isNull)

27
storage/src/mozStorageBindingParams.cpp
View File

@ -358,6 +358,20 @@ BindingParams::BindBlobByName(const nsACString &aName,
return BindByName(aName, value);
}
NS_IMETHODIMP
BindingParams::BindStringAsBlobByName(const nsACString& aName,
const nsAString& aValue)
{
return DoBindStringAsBlobByName(this, aName, aValue);
}
NS_IMETHODIMP
BindingParams::BindUTF8StringAsBlobByName(const nsACString& aName,
const nsACString& aValue)
{
return DoBindStringAsBlobByName(this, aName, aValue);
}
NS_IMETHODIMP
BindingParams::BindAdoptedBlobByName(const nsACString &aName,
@ -493,6 +507,19 @@ BindingParams::BindBlobByIndex(uint32_t aIndex,
return BindByIndex(aIndex, value);
}
NS_IMETHODIMP
BindingParams::BindStringAsBlobByIndex(uint32_t aIndex, const nsAString& aValue)
{
return DoBindStringAsBlobByIndex(this, aIndex, aValue);
}
NS_IMETHODIMP
BindingParams::BindUTF8StringAsBlobByIndex(uint32_t aIndex,
const nsACString& aValue)
{
return DoBindStringAsBlobByIndex(this, aIndex, aValue);
}
NS_IMETHODIMP
BindingParams::BindAdoptedBlobByIndex(uint32_t aIndex,
uint8_t *aValue,

48
storage/src/mozStoragePrivateHelpers.h
View File

@ -88,6 +88,54 @@ already_AddRefed<nsIRunnable> newCompletionEvent(
mozIStorageCompletionCallback *aCallback
);
/**
* Utility method to get a Blob as a string value. The string expects
* the interface exposed by nsAString/nsACString/etc.
*/
template<class T, class V>
nsresult
DoGetBlobAsString(T* aThis, uint32_t aIndex, V& aValue)
{
typedef typename V::char_type char_type;
uint32_t size;
char_type* blob;
nsresult rv =
aThis->GetBlob(aIndex, &size, reinterpret_cast<uint8_t**>(&blob));
NS_ENSURE_SUCCESS(rv, rv);
aValue.Adopt(blob, size / sizeof(char_type));
return NS_OK;
}
/**
* Utility method to bind a string value as a Blob. The string expects
* the interface exposed by nsAString/nsACString/etc.
*/
template<class T, class V>
nsresult
DoBindStringAsBlobByName(T* aThis, const nsACString& aName, const V& aValue)
{
typedef typename V::char_type char_type;
return aThis->BindBlobByName(aName,
reinterpret_cast<const uint8_t*>(aValue.BeginReading()),
aValue.Length() * sizeof(char_type));
}
/**
* Utility method to bind a string value as a Blob. The string expects
* the interface exposed by nsAString/nsACString/etc.
*/
template<class T, class V>
nsresult
DoBindStringAsBlobByIndex(T* aThis, uint32_t aIndex, const V& aValue)
{
typedef typename V::char_type char_type;
return aThis->BindBlobByIndex(aIndex,
reinterpret_cast<const uint8_t*>(aValue.BeginReading()),
aValue.Length() * sizeof(char_type));
}
} // namespace storage
} // namespace mozilla

12
storage/src/mozStorageRow.cpp
View File

@ -194,6 +194,18 @@ Row::GetBlob(uint32_t aIndex,
reinterpret_cast<void **>(_blob));
}
NS_IMETHODIMP
Row::GetBlobAsString(uint32_t aIndex, nsAString& aValue)
{
return DoGetBlobAsString(this, aIndex, aValue);
}
NS_IMETHODIMP
Row::GetBlobAsUTF8String(uint32_t aIndex, nsACString& aValue)
{
return DoGetBlobAsString(this, aIndex, aValue);
}
NS_IMETHODIMP
Row::GetIsNull(uint32_t aIndex,
bool *_isNull)

12
storage/src/mozStorageStatement.cpp
View File

@ -832,6 +832,18 @@ Statement::GetBlob(uint32_t aIndex,
return NS_OK;
}
NS_IMETHODIMP
Statement::GetBlobAsString(uint32_t aIndex, nsAString& aValue)
{
return DoGetBlobAsString(this, aIndex, aValue);
}
NS_IMETHODIMP
Statement::GetBlobAsUTF8String(uint32_t aIndex, nsACString& aValue)
{
return DoGetBlobAsString(this, aIndex, aValue);
}
NS_IMETHODIMP
Statement::GetSharedUTF8String(uint32_t aIndex,
uint32_t *_length,