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Junming
jio
Commits
7e988905
Commit
7e988905
authored
Jan 23, 2015
by
Romain Courteaud
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Allow to use a jio document as a full storage.
parent
902f54fe
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src/jio.storage/documentstorage.js
src/jio.storage/documentstorage.js
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src/jio.storage/documentstorage.js
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7e988905
/*jslint nomen: true*/
/*global console, Blob, atob, btoa*/
(
function
(
jIO
,
Blob
,
atob
,
btoa
)
{
"
use strict
"
;
/**
* The jIO DocumentStorage extension
*
* @class DocumentStorage
* @constructor
*/
function
DocumentStorage
(
spec
)
{
this
.
_sub_storage
=
jIO
.
createJIO
(
spec
.
sub_storage
);
this
.
_document_id
=
spec
.
document_id
;
}
var
DOCUMENT_EXTENSION
=
"
.json
"
,
DOCUMENT_REGEXP
=
new
RegExp
(
"
^jio_document/([
\\
w=]+)
"
+
DOCUMENT_EXTENSION
+
"
$
"
),
ATTACHMENT_REGEXP
=
new
RegExp
(
"
^jio_attachment/([
\\
w=]+)/([
\\
w=]+)$
"
);
function
getSubAttachmentIdFromParam
(
param
)
{
if
(
param
.
_attachment
===
undefined
)
{
return
'
jio_document/
'
+
btoa
(
param
.
_id
)
+
DOCUMENT_EXTENSION
;
}
return
'
jio_attachment/
'
+
btoa
(
param
.
_id
)
+
"
/
"
+
btoa
(
param
.
_attachment
);
}
DocumentStorage
.
prototype
.
get
=
function
(
param
)
{
var
result
,
context
=
this
;
return
this
.
_sub_storage
.
getAttachment
({
"
_id
"
:
this
.
_document_id
,
"
_attachment
"
:
getSubAttachmentIdFromParam
(
param
)
})
.
push
(
function
(
blob
)
{
return
jIO
.
util
.
readBlobAsText
(
blob
);
})
.
push
(
function
(
text
)
{
return
JSON
.
parse
(
text
.
target
.
result
);
})
.
push
(
function
(
json
)
{
result
=
json
;
return
context
.
_sub_storage
.
get
({
"
_id
"
:
context
.
_document_id
});
})
.
push
(
function
(
document
)
{
var
attachments
=
{},
exec
,
key
;
for
(
key
in
document
.
_attachments
)
{
if
(
document
.
_attachments
.
hasOwnProperty
(
key
))
{
if
(
ATTACHMENT_REGEXP
.
test
(
key
))
{
exec
=
ATTACHMENT_REGEXP
.
exec
(
key
);
if
(
atob
(
exec
[
1
])
===
param
.
_id
)
{
attachments
[
atob
(
exec
[
2
])]
=
{};
}
}
}
}
if
(
Object
.
getOwnPropertyNames
(
attachments
).
length
>
0
)
{
result
.
_attachments
=
attachments
;
}
return
result
;
});
};
DocumentStorage
.
prototype
.
post
=
function
(
param
)
{
var
doc_id
=
param
.
_id
;
if
(
doc_id
===
undefined
)
{
doc_id
=
jIO
.
util
.
generateUuid
();
}
param
.
_id
=
doc_id
;
return
this
.
put
(
param
);
};
DocumentStorage
.
prototype
.
put
=
function
(
param
)
{
var
doc_id
=
param
.
_id
;
return
this
.
_sub_storage
.
putAttachment
({
"
_id
"
:
this
.
_document_id
,
"
_attachment
"
:
getSubAttachmentIdFromParam
(
param
),
"
_blob
"
:
new
Blob
([
JSON
.
stringify
(
param
)],
{
type
:
"
application/json
"
})
})
.
push
(
function
()
{
return
doc_id
;
});
};
DocumentStorage
.
prototype
.
remove
=
function
(
param
)
{
return
this
.
_sub_storage
.
removeAttachment
({
"
_id
"
:
this
.
_document_id
,
"
_attachment
"
:
getSubAttachmentIdFromParam
(
param
)
})
.
push
(
function
()
{
return
param
.
_id
;
});
};
DocumentStorage
.
prototype
.
hasCapacity
=
function
(
capacity
)
{
return
(
capacity
===
"
list
"
);
};
DocumentStorage
.
prototype
.
buildQuery
=
function
()
{
return
this
.
_sub_storage
.
get
({
"
_id
"
:
this
.
_document_id
})
.
push
(
function
(
document
)
{
var
result
=
[],
key
;
for
(
key
in
document
.
_attachments
)
{
if
(
document
.
_attachments
.
hasOwnProperty
(
key
))
{
if
(
DOCUMENT_REGEXP
.
test
(
key
))
{
result
.
push
({
id
:
atob
(
DOCUMENT_REGEXP
.
exec
(
key
)[
1
]),
value
:
{}
});
}
}
}
return
result
;
});
};
DocumentStorage
.
prototype
.
getAttachment
=
function
(
param
)
{
return
this
.
_sub_storage
.
getAttachment
({
"
_id
"
:
this
.
_document_id
,
"
_attachment
"
:
getSubAttachmentIdFromParam
(
param
)
});
};
DocumentStorage
.
prototype
.
putAttachment
=
function
(
param
)
{
return
this
.
_sub_storage
.
putAttachment
({
"
_id
"
:
this
.
_document_id
,
"
_attachment
"
:
getSubAttachmentIdFromParam
(
param
),
"
_blob
"
:
param
.
_blob
});
};
DocumentStorage
.
prototype
.
removeAttachment
=
function
(
param
)
{
return
this
.
_sub_storage
.
removeAttachment
({
"
_id
"
:
this
.
_document_id
,
"
_attachment
"
:
getSubAttachmentIdFromParam
(
param
)
});
};
jIO
.
addStorage
(
'
document
'
,
DocumentStorage
);
}(
jIO
,
Blob
,
atob
,
btoa
));
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