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Commit effc66a8 authored by Tristan Cavelier's avatar Tristan Cavelier
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localstorage.js amd compatible now

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src/jio.storage/localstorage.js
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/*
* Copyright 2013, Nexedi SA
* Released under the LGPL license.
* http://www.gnu.org/licenses/lgpl.html
*/
* Copyright 2013, Nexedi SA
* Released under the LGPL license.
* http://www.gnu.org/licenses/lgpl.html
*/
/*jslint indent: 2, maxlen: 80, sloppy: true, nomen: true */
/*global jIO: true, localStorage: true, setTimeout: true,
complex_queries: true */
complex_queries, define */
/**
* JIO Local Storage. Type = 'local'.
......@@ -43,395 +43,413 @@
*
* @class LocalStorage
*/
jIO.addStorageType('local', function (spec, my) {
spec = spec || {};
var that, priv, localstorage;
that = my.basicStorage(spec, my);
priv = {};
/*
* Wrapper for the localStorage used to simplify instion of any kind of
* values
*/
localstorage = {
getItem: function (item) {
var value = localStorage.getItem(item);
return value === null ? null : JSON.parse(value);
},
setItem: function (item, value) {
return localStorage.setItem(item, JSON.stringify(value));
},
removeItem: function (item) {
return localStorage.removeItem(item);
}
};
// define([module_name], [dependencies], module);
(function (dependencies, module) {
"use strict";
if (typeof define === 'function' && define.amd) {
return define(dependencies, module);
}
module(jIO, complex_queries);
}(['jio', 'complex_queries'], function (jIO, complex_queries) {
"use strict";
// attributes
priv.username = spec.username || '';
priv.application_name = spec.application_name || 'untitled';
jIO.addStorageType('local', function (spec, my) {
priv.localpath = 'jio/localstorage/' + priv.username + '/' +
priv.application_name;
spec = spec || {};
var that, priv, localstorage;
that = my.basicStorage(spec, my);
priv = {};
// ==================== Tools ====================
/**
* Generate a new uuid
* @method generateUuid
* @return {string} The new uuid
*/
priv.generateUuid = function () {
var S4 = function () {
/* 65536 */
var i, string = Math.floor(
Math.random() * 0x10000
).toString(16);
for (i = string.length; i < 4; i += 1) {
string = '0' + string;
/*
* Wrapper for the localStorage used to simplify instion of any kind of
* values
*/
localstorage = {
getItem: function (item) {
var value = localStorage.getItem(item);
return value === null ? null : JSON.parse(value);
},
setItem: function (item, value) {
return localStorage.setItem(item, JSON.stringify(value));
},
removeItem: function (item) {
return localStorage.removeItem(item);
}
return string;
};
return S4() + S4() + "-" + S4() + "-" + S4() + "-" + S4() + "-" + S4() +
S4() + S4();
};
/**
* Checks if an object has no enumerable keys
* @method objectIsEmpty
* @param {object} obj The object
* @return {boolean} true if empty, else false
*/
priv.objectIsEmpty = function (obj) {
var k;
for (k in obj) {
if (obj.hasOwnProperty(k)) {
return false;
}
}
return true;
};
// attributes
priv.username = spec.username || '';
priv.application_name = spec.application_name || 'untitled';
priv.localpath = 'jio/localstorage/' + priv.username + '/' +
priv.application_name;
// ===================== overrides ======================
that.specToStore = function () {
return {
"application_name": priv.application_name,
"username": priv.username
// ==================== Tools ====================
/**
* Generate a new uuid
* @method generateUuid
* @return {string} The new uuid
*/
priv.generateUuid = function () {
var S4 = function () {
/* 65536 */
var i, string = Math.floor(
Math.random() * 0x10000
).toString(16);
for (i = string.length; i < 4; i += 1) {
string = '0' + string;
}
return string;
};
return S4() + S4() + "-" + S4() + "-" + S4() + "-" + S4() + "-" + S4() +
S4() + S4();
};
};
that.validateState = function () {
if (typeof priv.username === "string" && priv.username !== '') {
return '';
}
return 'Need at least one parameter: "username".';
};
/**
* Checks if an object has no enumerable keys
* @method objectIsEmpty
* @param {object} obj The object
* @return {boolean} true if empty, else false
*/
priv.objectIsEmpty = function (obj) {
var k;
for (k in obj) {
if (obj.hasOwnProperty(k)) {
return false;
}
}
return true;
};
// ===================== overrides ======================
that.specToStore = function () {
return {
"application_name": priv.application_name,
"username": priv.username
};
};
// ==================== commands ====================
/**
* Create a document in local storage.
* @method post
* @param {object} command The JIO command
*/
that.post = function (command) {
setTimeout(function () {
var doc, doc_id = command.getDocId();
if (!doc_id) {
doc_id = priv.generateUuid();
that.validateState = function () {
if (typeof priv.username === "string" && priv.username !== '') {
return '';
}
doc = localstorage.getItem(priv.localpath + "/" + doc_id);
if (doc === null) {
// the document does not exist
doc = command.cloneDoc();
doc._id = doc_id;
delete doc._attachments;
localstorage.setItem(priv.localpath + "/" + doc_id, doc);
return 'Need at least one parameter: "username".';
};
// ==================== commands ====================
/**
* Create a document in local storage.
* @method post
* @param {object} command The JIO command
*/
that.post = function (command) {
setTimeout(function () {
var doc, doc_id = command.getDocId();
if (!doc_id) {
doc_id = priv.generateUuid();
}
doc = localstorage.getItem(priv.localpath + "/" + doc_id);
if (doc === null) {
// the document does not exist
doc = command.cloneDoc();
doc._id = doc_id;
delete doc._attachments;
localstorage.setItem(priv.localpath + "/" + doc_id, doc);
that.success({
"ok": true,
"id": doc_id
});
} else {
// the document already exists
that.error({
"status": 409,
"statusText": "Conflicts",
"error": "conflicts",
"message": "Cannot create a new document",
"reason": "Document already exists"
});
}
});
};
/**
* Create or update a document in local storage.
* @method put
* @param {object} command The JIO command
*/
that.put = function (command) {
setTimeout(function () {
var doc, tmp;
doc = localstorage.getItem(priv.localpath + "/" + command.getDocId());
if (doc === null) {
// the document does not exist
doc = command.cloneDoc();
delete doc._attachments;
} else {
// the document already exists
tmp = command.cloneDoc();
tmp._attachments = doc._attachments;
doc = tmp;
}
// write
localstorage.setItem(priv.localpath + "/" + command.getDocId(), doc);
that.success({
"ok": true,
"id": doc_id
});
} else {
// the document already exists
that.error({
"status": 409,
"statusText": "Conflicts",
"error": "conflicts",
"message": "Cannot create a new document",
"reason": "Document already exists"
"id": command.getDocId()
});
}
});
};
/**
* Create or update a document in local storage.
* @method put
* @param {object} command The JIO command
*/
that.put = function (command) {
setTimeout(function () {
var doc, tmp;
doc = localstorage.getItem(priv.localpath + "/" + command.getDocId());
if (doc === null) {
// the document does not exist
doc = command.cloneDoc();
delete doc._attachments;
} else {
// the document already exists
tmp = command.cloneDoc();
tmp._attachments = doc._attachments;
doc = tmp;
}
// write
localstorage.setItem(priv.localpath + "/" + command.getDocId(), doc);
that.success({
"ok": true,
"id": command.getDocId()
});
});
};
};
/**
* Add an attachment to a document
* @method putAttachment
* @param {object} command The JIO command
*/
that.putAttachment = function (command) {
setTimeout(function () {
var doc;
doc = localstorage.getItem(priv.localpath + "/" + command.getDocId());
if (doc === null) {
// the document does not exist
that.error({
"status": 404,
"statusText": "Not Found",
"error": "not_found",
"message": "Impossible to add attachment",
"reason": "Document not found"
});
return;
}
/**
* Add an attachment to a document
* @method putAttachment
* @param {object} command The JIO command
*/
that.putAttachment = function (command) {
setTimeout(function () {
var doc;
doc = localstorage.getItem(priv.localpath + "/" + command.getDocId());
if (doc === null) {
// the document does not exist
that.error({
"status": 404,
"statusText": "Not Found",
"error": "not_found",
"message": "Impossible to add attachment",
"reason": "Document not found"
});
return;
}
// the document already exists
doc._attachments = doc._attachments || {};
doc._attachments[command.getAttachmentId()] = {
"content_type": command.getAttachmentMimeType(),
"digest": "md5-" + command.md5SumAttachmentData(),
"length": command.getAttachmentLength()
};
// the document already exists
doc._attachments = doc._attachments || {};
doc._attachments[command.getAttachmentId()] = {
"content_type": command.getAttachmentMimeType(),
"digest": "md5-" + command.md5SumAttachmentData(),
"length": command.getAttachmentLength()
};
// upload data
localstorage.setItem(priv.localpath + "/" + command.getDocId() + "/" +
command.getAttachmentId(),
command.getAttachmentData());
// write document
localstorage.setItem(priv.localpath + "/" + command.getDocId(), doc);
that.success({
"ok": true,
"id": command.getDocId(),
"attachment": command.getAttachmentId()
// upload data
localstorage.setItem(priv.localpath + "/" + command.getDocId() + "/" +
command.getAttachmentId(),
command.getAttachmentData());
// write document
localstorage.setItem(priv.localpath + "/" + command.getDocId(), doc);
that.success({
"ok": true,
"id": command.getDocId(),
"attachment": command.getAttachmentId()
});
});
});
};
};
/**
* Get a document
* @method get
* @param {object} command The JIO command
*/
that.get = function (command) {
setTimeout(function () {
var doc = localstorage.getItem(priv.localpath + "/" + command.getDocId());
if (doc !== null) {
that.success(doc);
} else {
that.error({
"status": 404,
"statusText": "Not Found",
"error": "not_found",
"message": "Cannot find the document",
"reason": "Document does not exist"
});
}
});
};
/**
* Get a document
* @method get
* @param {object} command The JIO command
*/
that.get = function (command) {
setTimeout(function () {
var doc = localstorage.getItem(
priv.localpath + "/" + command.getDocId()
);
if (doc !== null) {
that.success(doc);
} else {
that.error({
"status": 404,
"statusText": "Not Found",
"error": "not_found",
"message": "Cannot find the document",
"reason": "Document does not exist"
});
}
});
};
/**
* Get a attachment
* @method getAttachment
* @param {object} command The JIO command
*/
that.getAttachment = function (command) {
setTimeout(function () {
var doc = localstorage.getItem(priv.localpath + "/" + command.getDocId() +
"/" + command.getAttachmentId());
if (doc !== null) {
that.success(doc);
} else {
that.error({
"status": 404,
"statusText": "Not Found",
"error": "not_found",
"message": "Cannot find the attachment",
"reason": "Attachment does not exist"
});
}
});
};
/**
* Get a attachment
* @method getAttachment
* @param {object} command The JIO command
*/
that.getAttachment = function (command) {
setTimeout(function () {
var doc = localstorage.getItem(
priv.localpath + "/" + command.getDocId() +
"/" + command.getAttachmentId()
);
if (doc !== null) {
that.success(doc);
} else {
that.error({
"status": 404,
"statusText": "Not Found",
"error": "not_found",
"message": "Cannot find the attachment",
"reason": "Attachment does not exist"
});
}
});
};
/**
* Remove a document
* @method remove
* @param {object} command The JIO command
*/
that.remove = function (command) {
setTimeout(function () {
var doc, i, attachment_list;
doc = localstorage.getItem(priv.localpath + "/" + command.getDocId());
attachment_list = [];
if (doc !== null && typeof doc === "object") {
if (typeof doc._attachments === "object") {
// prepare list of attachments
for (i in doc._attachments) {
if (doc._attachments.hasOwnProperty(i)) {
attachment_list.push(i);
/**
* Remove a document
* @method remove
* @param {object} command The JIO command
*/
that.remove = function (command) {
setTimeout(function () {
var doc, i, attachment_list;
doc = localstorage.getItem(priv.localpath + "/" + command.getDocId());
attachment_list = [];
if (doc !== null && typeof doc === "object") {
if (typeof doc._attachments === "object") {
// prepare list of attachments
for (i in doc._attachments) {
if (doc._attachments.hasOwnProperty(i)) {
attachment_list.push(i);
}
}
}
} else {
return that.error({
"status": 404,
"statusText": "Not Found",
"error": "not_found",
"message": "Document not found",
"reason": "missing"
});
}
} else {
return that.error({
"status": 404,
"statusText": "Not Found",
"error": "not_found",
"message": "Document not found",
"reason": "missing"
localstorage.removeItem(priv.localpath + "/" + command.getDocId());
// delete all attachments
for (i = 0; i < attachment_list.length; i += 1) {
localstorage.removeItem(priv.localpath + "/" + command.getDocId() +
"/" + attachment_list[i]);
}
that.success({
"ok": true,
"id": command.getDocId()
});
}
localstorage.removeItem(priv.localpath + "/" + command.getDocId());
// delete all attachments
for (i = 0; i < attachment_list.length; i += 1) {
localstorage.removeItem(priv.localpath + "/" + command.getDocId() +
"/" + attachment_list[i]);
}
that.success({
"ok": true,
"id": command.getDocId()
});
});
};
};
/**
* Remove an attachment
* @method removeAttachment
* @param {object} command The JIO command
*/
that.removeAttachment = function (command) {
setTimeout(function () {
var doc, error, i, attachment_list;
error = function (word) {
that.error({
"status": 404,
"statusText": "Not Found",
"error": "not_found",
"message": word + " not found",
"reason": "missing"
});
};
doc = localstorage.getItem(priv.localpath + "/" + command.getDocId());
// remove attachment from document
if (doc !== null && typeof doc === "object" &&
typeof doc._attachments === "object") {
if (typeof doc._attachments[command.getAttachmentId()] ===
"object") {
delete doc._attachments[command.getAttachmentId()];
if (priv.objectIsEmpty(doc._attachments)) {
delete doc._attachments;
}
localstorage.setItem(priv.localpath + "/" + command.getDocId(),
doc);
localstorage.removeItem(priv.localpath + "/" + command.getDocId() +
"/" + command.getAttachmentId());
that.success({
"ok": true,
"id": command.getDocId(),
"attachment": command.getAttachmentId()
/**
* Remove an attachment
* @method removeAttachment
* @param {object} command The JIO command
*/
that.removeAttachment = function (command) {
setTimeout(function () {
var doc, error, i, attachment_list;
error = function (word) {
that.error({
"status": 404,
"statusText": "Not Found",
"error": "not_found",
"message": word + " not found",
"reason": "missing"
});
};
doc = localstorage.getItem(priv.localpath + "/" + command.getDocId());
// remove attachment from document
if (doc !== null && typeof doc === "object" &&
typeof doc._attachments === "object") {
if (typeof doc._attachments[command.getAttachmentId()] ===
"object") {
delete doc._attachments[command.getAttachmentId()];
if (priv.objectIsEmpty(doc._attachments)) {
delete doc._attachments;
}
localstorage.setItem(priv.localpath + "/" + command.getDocId(),
doc);
localstorage.removeItem(priv.localpath + "/" + command.getDocId() +
"/" + command.getAttachmentId());
that.success({
"ok": true,
"id": command.getDocId(),
"attachment": command.getAttachmentId()
});
} else {
error("Attachment");
}
} else {
error("Attachment");
error("Document");
}
} else {
error("Document");
}
});
};
});
};
/**
* Get all filenames belonging to a user from the document index
* @method allDocs
* @param {object} command The JIO command
*/
that.allDocs = function (command) {
var i, row, path_re, rows = [], document_list = [], option, document_object;
path_re = new RegExp(
"^" + complex_queries.stringEscapeRegexpCharacters(priv.localpath) +
"/[^/]+$"
);
option = command.cloneOption();
if (typeof complex_queries !== "object" ||
(option.query === undefined && option.sort_on === undefined &&
option.select_list === undefined &&
option.include_docs === undefined)) {
/**
* Get all filenames belonging to a user from the document index
* @method allDocs
* @param {object} command The JIO command
*/
that.allDocs = function (command) {
var i, row, path_re, rows, document_list, option, document_object;
rows = [];
for (i in localStorage) {
if (localStorage.hasOwnProperty(i)) {
// filter non-documents
if (path_re.test(i)) {
row = { value: {} };
row.id = i.split('/').slice(-1)[0];
row.key = row.id;
if (command.getOption('include_docs')) {
row.doc = JSON.parse(localStorage.getItem(i));
document_list = [];
path_re = new RegExp(
"^" + complex_queries.stringEscapeRegexpCharacters(priv.localpath) +
"/[^/]+$"
);
option = command.cloneOption();
if (typeof complex_queries !== "object" ||
(option.query === undefined && option.sort_on === undefined &&
option.select_list === undefined &&
option.include_docs === undefined)) {
rows = [];
for (i in localStorage) {
if (localStorage.hasOwnProperty(i)) {
// filter non-documents
if (path_re.test(i)) {
row = { value: {} };
row.id = i.split('/').slice(-1)[0];
row.key = row.id;
if (command.getOption('include_docs')) {
row.doc = JSON.parse(localStorage.getItem(i));
}
rows.push(row);
}
rows.push(row);
}
}
}
that.success({"rows": rows, "total_rows": rows.length});
} else {
// create complex query object from returned results
for (i in localStorage) {
if (localStorage.hasOwnProperty(i)) {
if (path_re.test(i)) {
document_list.push(localstorage.getItem(i));
that.success({"rows": rows, "total_rows": rows.length});
} else {
// create complex query object from returned results
for (i in localStorage) {
if (localStorage.hasOwnProperty(i)) {
if (path_re.test(i)) {
document_list.push(localstorage.getItem(i));
}
}
}
}
option.select_list = option.select_list || [];
option.select_list.push("_id");
if (option.include_docs === true) {
document_object = {};
document_list.forEach(function (meta) {
document_object[meta._id] = meta;
});
}
complex_queries.QueryFactory.create(option.query || "").
exec(document_list, option);
document_list = document_list.map(function (value) {
var o = {
"id": value._id,
"key": value._id
};
option.select_list = option.select_list || [];
option.select_list.push("_id");
if (option.include_docs === true) {
o.doc = document_object[value._id];
delete document_object[value._id];
document_object = {};
document_list.forEach(function (meta) {
document_object[meta._id] = meta;
});
}
delete value._id;
o.value = value;
return o;
});
that.success({"total_rows": document_list.length,
"rows": document_list});
}
};
complex_queries.QueryFactory.create(option.query || "").
exec(document_list, option);
document_list = document_list.map(function (value) {
var o = {
"id": value._id,
"key": value._id
};
if (option.include_docs === true) {
o.doc = document_object[value._id];
delete document_object[value._id];
}
delete value._id;
o.value = value;
return o;
});
that.success({"total_rows": document_list.length,
"rows": document_list});
}
};
return that;
});
return that;
});
}));
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