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Douglas
jio
Commits
5a302480
Commit
5a302480
authored
Apr 03, 2014
by
Tristan Cavelier
Browse files
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Plain Diff
get,post,put,remove indexexDB performance improved
parent
b60b42a1
Changes
1
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Showing
1 changed file
with
262 additions
and
89 deletions
+262
-89
src/jio.storage/indexeddbstorage.js
src/jio.storage/indexeddbstorage.js
+262
-89
No files found.
src/jio.storage/indexeddbstorage.js
View file @
5a302480
...
...
@@ -81,33 +81,36 @@
}
// XXX doc string
IndexedDBStorage
.
prototype
.
createDBIfNecessary
=
function
()
{
var
status
,
open_req
=
indexedDB
.
open
(
this
.
_database_name
);
// No request.abort() is provided so we cannot cancel database creation
return
new
Promise
(
function
(
resolve
,
reject
)
{
open_req
.
onupgradeneeded
=
function
()
{
// *Called at t + 1*
var
store
,
db
=
open_req
.
result
;
// If we reach this point, the database is created.
// There is no way to cancel the operation from here.
// So let's continue.
function
openRequestOnUpgradeNeeded
(
shared
,
event
)
{
if
(
shared
.
aborted
)
{
return
;
}
shared
.
db
=
event
.
target
.
result
;
try
{
store
=
db
.
createObjectStore
(
"
metadata
"
,
{
shared
.
store
=
shared
.
db
.
createObjectStore
(
"
metadata
"
,
{
"
keyPath
"
:
"
_id
"
//"autoIncrement": true
});
// `createObjectStore` can throw InvalidStateError - open_req.onerror
// and db.onerror won't be called.
store
.
createIndex
(
"
_id
"
,
"
_id
"
);
shared
.
store
.
createIndex
(
"
_id
"
,
"
_id
"
);
// `store.createIndex` can throw an error
status
=
"
created
"
;
//
store.transaction.oncomplete = function () {
// // *Called at t + 2*
//
};
shared
.
db_created
=
true
;
shared
.
store
.
transaction
.
oncomplete
=
function
()
{
delete
shared
.
store
;
};
}
catch
(
e
)
{
reject
(
e
);
db
.
close
();
shared
.
reject
(
e
);
shared
.
db
.
close
();
shared
.
aborted
=
true
;
}
};
}
IndexedDBStorage
.
prototype
.
createDBIfNecessary
=
function
()
{
var
shared
=
{},
open_req
=
indexedDB
.
open
(
this
.
_database_name
);
// No request.abort() is provided so we cannot cancel database creation
return
new
Promise
(
function
(
resolve
,
reject
)
{
shared
.
reject
=
reject
;
open_req
.
onupgradeneeded
=
openRequestOnUpgradeNeeded
.
bind
(
open_req
,
shared
);
open_req
.
onerror
=
function
()
{
if
(
open_req
.
result
)
{
open_req
.
result
.
close
();
}
reject
(
open_req
.
error
);
...
...
@@ -115,7 +118,7 @@
open_req
.
onsuccess
=
function
()
{
// *Called at t + 3*
open_req
.
result
.
close
();
resolve
(
s
tatus
||
"
no_content
"
);
resolve
(
s
hared
.
db_created
?
"
created
"
:
"
no_content
"
);
};
});
};
...
...
@@ -280,51 +283,169 @@
// XXX doc string
IndexedDBStorage
.
prototype
.
get
=
function
(
command
,
param
)
{
this
.
createDBIfNecessary
().
then
(
this
.
getMetadata
.
bind
(
this
,
param
.
_id
)).
then
(
function
(
data
)
{
command
.
success
({
"
data
"
:
data
});
},
command
.
error
,
command
.
notify
);
var
shared
=
{
"
connector
"
:
this
};
new
Promise
(
function
(
resolve
,
reject
)
{
shared
.
reject
=
reject
;
// Open DB //
var
open_req
=
indexedDB
.
open
(
shared
.
connector
.
_database_name
);
open_req
.
onerror
=
function
(
event
)
{
reject
(
event
.
target
.
errorCode
);
};
// Create DB if necessary //
open_req
.
onupgradeneeded
=
openRequestOnUpgradeNeeded
.
bind
(
open_req
,
shared
);
open_req
.
onsuccess
=
function
(
event
)
{
if
(
shared
.
aborted
)
{
return
;
}
try
{
shared
.
db
=
event
.
target
.
result
;
// Open transaction //
shared
.
tx
=
shared
.
db
.
transaction
(
"
metadata
"
,
"
readonly
"
);
shared
.
tx
.
onerror
=
function
()
{
reject
(
shared
.
tx
.
error
);
shared
.
db
.
close
();
};
shared
.
onCancel
=
function
()
{
shared
.
tx
.
abort
();
shared
.
db
.
close
();
};
// Get index //
shared
.
store
=
shared
.
tx
.
objectStore
(
"
metadata
"
);
shared
.
index_request
=
shared
.
store
.
index
(
"
_id
"
);
// Get metadata //
shared
.
index_request
.
get
(
param
.
_id
).
onsuccess
=
function
(
event
)
{
if
(
shared
.
aborted
)
{
return
;
}
if
(
event
.
target
.
result
===
undefined
)
{
reject
({
"
status
"
:
404
});
return
;
}
shared
.
final_result
=
{
"
data
"
:
event
.
target
.
result
};
};
// Respond to jIO //
shared
.
tx
.
oncomplete
=
function
()
{
resolve
(
shared
.
final_result
);
shared
.
db
.
close
();
};
}
catch
(
e1
)
{
reject
(
e1
);
shared
.
db
.
close
();
}
};
}).
then
(
command
.
success
,
command
.
error
,
command
.
notify
);
};
// XXX doc string
IndexedDBStorage
.
prototype
.
post
=
function
(
command
,
metadata
)
{
var
promise
;
promise
=
this
.
createDBIfNecessary
();
if
(
metadata
.
_id
)
{
promise
=
promise
.
then
(
this
.
getMetadata
.
bind
(
this
,
metadata
.
_id
)).
then
(
function
()
{
throw
"
conflict
"
;
},
function
(
error
)
{
if
(
error
===
"
not_found
"
)
{
var
shared
=
{
"
connector
"
:
this
};
if
(
!
metadata
.
_id
)
{
metadata
.
_id
=
generateUuid
();
}
new
Promise
(
function
(
resolve
,
reject
)
{
shared
.
reject
=
reject
;
// Open DB //
var
open_req
=
indexedDB
.
open
(
shared
.
connector
.
_database_name
);
open_req
.
onerror
=
function
(
event
)
{
reject
(
event
.
target
.
errorCode
);
};
// Create DB if necessary //
open_req
.
onupgradeneeded
=
openRequestOnUpgradeNeeded
.
bind
(
open_req
,
shared
);
open_req
.
onsuccess
=
function
(
event
)
{
if
(
shared
.
aborted
)
{
return
;
}
try
{
shared
.
db
=
event
.
target
.
result
;
// Open transaction //
shared
.
tx
=
shared
.
db
.
transaction
(
"
metadata
"
,
"
readwrite
"
);
shared
.
tx
.
onerror
=
function
()
{
reject
(
shared
.
tx
.
error
);
shared
.
db
.
close
();
};
shared
.
onCancel
=
function
()
{
shared
.
tx
.
abort
();
shared
.
db
.
close
();
};
// Get index //
shared
.
store
=
shared
.
tx
.
objectStore
(
"
metadata
"
);
shared
.
index_request
=
shared
.
store
.
index
(
"
_id
"
);
// Get metadata //
shared
.
index_request
.
get
(
metadata
.
_id
).
onsuccess
=
function
(
event
)
{
if
(
shared
.
aborted
)
{
return
;
}
if
(
event
.
target
.
result
!==
undefined
)
{
shared
.
db
.
close
();
reject
({
"
status
"
:
409
,
"
reason
"
:
"
document already exist
"
});
return
;
}
throw
error
;
});
}
else
{
metadata
.
_id
=
generateUuid
();
delete
metadata
.
_attachments
;
// Push metadata //
shared
.
store
.
put
(
metadata
);
};
shared
.
tx
.
oncomplete
=
function
()
{
// Respond to jIO //
shared
.
db
.
close
();
resolve
({
"
id
"
:
metadata
.
_id
});
};
}
catch
(
e1
)
{
reject
(
e1
);
shared
.
db
.
close
();
}
promise
.
then
(
this
.
putMetadata
.
bind
(
this
,
metadata
)).
then
(
function
()
{
command
.
success
({
"
id
"
:
metadata
.
_id
});
},
command
.
error
,
command
.
notify
);
};
}).
then
(
command
.
success
,
command
.
error
,
command
.
notify
);
};
// XXX doc string
IndexedDBStorage
.
prototype
.
put
=
function
(
command
,
metadata
)
{
var
status
;
this
.
createDBIfNecessary
().
then
(
this
.
getMetadata
.
bind
(
this
,
metadata
.
_id
)).
then
(
null
,
function
(
error
)
{
if
(
error
===
"
not_found
"
)
{
status
=
"
created
"
;
return
{};
}
throw
error
;
}).
then
(
function
(
data
)
{
var
i
,
l
,
key
,
array
;
var
shared
=
{
"
connector
"
:
this
};
new
Promise
(
function
(
resolve
,
reject
)
{
shared
.
reject
=
reject
;
// Open DB //
var
open_req
=
indexedDB
.
open
(
shared
.
connector
.
_database_name
);
open_req
.
onerror
=
function
(
event
)
{
reject
(
event
.
target
.
errorCode
);
};
// Create DB if necessary //
open_req
.
onupgradeneeded
=
openRequestOnUpgradeNeeded
.
bind
(
open_req
,
shared
);
open_req
.
onsuccess
=
function
(
event
)
{
if
(
shared
.
aborted
)
{
return
;
}
try
{
shared
.
db
=
event
.
target
.
result
;
// Open transaction //
shared
.
tx
=
shared
.
db
.
transaction
(
"
metadata
"
,
"
readwrite
"
);
shared
.
tx
.
onerror
=
function
()
{
reject
(
shared
.
tx
.
error
);
shared
.
db
.
close
();
};
shared
.
onCancel
=
function
()
{
shared
.
tx
.
abort
();
shared
.
db
.
close
();
};
// Get index //
shared
.
store
=
shared
.
tx
.
objectStore
(
"
metadata
"
);
shared
.
index
=
shared
.
store
.
index
(
"
_id
"
);
// Get metadata //
shared
.
index
.
get
(
metadata
.
_id
).
onsuccess
=
function
(
event
)
{
if
(
shared
.
aborted
)
{
return
;
}
var
i
,
l
,
key
,
array
,
data
;
if
(
event
.
target
.
result
!==
undefined
)
{
shared
.
found
=
true
;
data
=
event
.
target
.
result
;
// Update metadata //
array
=
Object
.
keys
(
metadata
);
for
(
i
=
0
,
l
=
array
.
length
;
i
<
l
;
i
+=
1
)
{
key
=
array
[
i
];
...
...
@@ -333,33 +454,85 @@
if
(
data
.
_attachments
)
{
metadata
.
_attachments
=
data
.
_attachments
;
}
}).
then
(
this
.
putMetadata
.
bind
(
this
,
metadata
)).
then
(
function
()
{
command
.
success
(
status
||
"
no_content
"
);
},
command
.
error
,
command
.
notify
);
}
else
{
delete
metadata
.
_attachments
;
}
// Push metadata //
shared
.
store
.
put
(
metadata
);
};
shared
.
tx
.
oncomplete
=
function
()
{
// Respond to jIO //
shared
.
db
.
close
();
resolve
({
"
status
"
:
shared
.
found
?
204
:
201
});
};
}
catch
(
e1
)
{
reject
(
e1
);
shared
.
db
.
close
();
}
};
}).
then
(
command
.
success
,
command
.
error
,
command
.
notify
);
};
// XXX doc string
IndexedDBStorage
.
prototype
.
remove
=
function
(
command
,
param
)
{
var
this_
=
this
;
this
.
createDBIfNecessary
().
then
(
this
.
getMetadata
.
bind
(
this
,
param
.
_id
)).
then
(
function
(
metadata
)
{
var
attachments
=
metadata
.
_attachments
,
promise
;
promise
=
this_
.
removeMetadata
(
param
.
_id
);
if
(
typeof
attachments
===
"
object
"
&&
attachments
!==
null
)
{
promise
.
then
(
function
(
answer
)
{
return
this_
.
removeAttachments
(
param
.
_id
,
Object
.
keys
(
attachments
)
).
then
(
null
,
function
()
{
return
;
}).
then
(
function
()
{
return
answer
;
});
});
var
shared
=
{
"
connector
"
:
this
};
new
Promise
(
function
(
resolve
,
reject
)
{
shared
.
reject
=
reject
;
// Open DB //
var
open_req
=
indexedDB
.
open
(
shared
.
connector
.
_database_name
);
open_req
.
onerror
=
function
(
event
)
{
reject
(
event
.
target
.
errorCode
);
};
// Create DB if necessary //
open_req
.
onupgradeneeded
=
openRequestOnUpgradeNeeded
.
bind
(
open_req
,
shared
);
open_req
.
onsuccess
=
function
(
event
)
{
if
(
shared
.
aborted
)
{
return
;
}
try
{
shared
.
db
=
event
.
target
.
result
;
// Open transaction //
shared
.
tx
=
shared
.
db
.
transaction
(
"
metadata
"
,
"
readwrite
"
);
shared
.
tx
.
onerror
=
function
()
{
reject
(
shared
.
tx
.
error
);
shared
.
db
.
close
();
};
shared
.
onCancel
=
function
()
{
shared
.
tx
.
abort
();
shared
.
db
.
close
();
};
// Get index //
shared
.
store
=
shared
.
tx
.
objectStore
(
"
metadata
"
);
shared
.
index
=
shared
.
store
.
index
(
"
_id
"
);
// Get metadata //
shared
.
index
.
get
(
param
.
_id
).
onsuccess
=
function
(
event
)
{
if
(
shared
.
aborted
)
{
return
;
}
if
(
event
.
target
.
result
===
undefined
)
{
shared
.
db
.
close
();
reject
({
"
status
"
:
404
});
return
;
}
return
promise
;
}).
then
(
command
.
success
,
command
.
error
,
command
.
notify
);
// Delete metadata //
shared
.
store
[
"
delete
"
](
param
.
_id
);
// XXX Delete attachments //
};
shared
.
tx
.
oncomplete
=
function
()
{
// Respond to jIO //
shared
.
db
.
close
();
resolve
();
};
}
catch
(
e1
)
{
reject
(
e1
);
shared
.
db
.
close
();
}
};
}).
then
(
command
.
success
,
command
.
error
,
command
.
notify
);
};
// XXX doc string
...
...
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