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478 |
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| // Copyright 2014, Yahoo! Inc.
// Copyrights licensed under the Mit License. See the accompanying LICENSE file for terms.
var Promise = require('promise');
var uuid = require('uuid');
var PNGImage = require('pngjs-image');
var StorageAdapter = require('./storageAdapter');
/**
* Key-Value storage adapter
*
* @class KeyValueStorageAdapter
* @extends StorageAdapter
* @constructor
* @param {object} options
* @param {ConnectionAdapter} options.connection
* @param {string} options.company
* @param {string} options.department
* @param {string} options.project
* @param {string} options.job
*
* @property {ConnectionAdapter} _connection
* @property {string} _company
* @property {object} _companyInfo
* @property {string} _department
* @property {object} _departmentInfo
* @property {string} _project
* @property {object} _projectInfo
* @property {string} _job
* @property {object} _jobInfo
* @property {object} _buildInfo
*/
var KeyValueStorageAdapter = StorageAdapter.extend(
/** @lends KeyValueStorageAdapter.prototype */
{
/**
* Initializes the source-adapter
*
* @method initialize
*/
initialize: function () {
this.__super();
this._connection = this._options.connection;
this._company = this._options.company;
this._department = this._options.department;
this._project = this._options.project;
this._job = this._options.job;
this.setPromise(this._prepareCompanyBucket());
this.setPromise(this._prepareDepartmentBucket());
this.setPromise(this._prepareProjectBucket());
this.setPromise(this._prepareJobBucket());
this.setPromise(this._prepareBuildBucket());
},
/**
* Prepare a bucket
*
* @method _prepareBucket
* @return {Promise}
* @private
*/
_prepareBucket: function (bucketName, key, initialValue, failWhenExist) {
return this.getPromise().then(function () {
return this._connection.hasBucket(bucketName).then(function (hasBucket) {
if (!hasBucket) {
throw new Error('The ' + bucketName + ' bucket is not available in the key-value instance.');
}
});
}.bind(this)).then(function () {
return this._connection.hasBucketKey(bucketName, key, this._bucketKeyFilter).then(function (hasBucketKey) {
if (hasBucketKey) {
if (failWhenExist) {
throw new Error('The ' + bucketName + ' bucket with key ' + key + ' is already available in the key-value instance.');
}
} else {
return this._connection.setObjectFromJSON(bucketName, key, initialValue);
}
}.bind(this));
}.bind(this));
},
/**
* Prepare the companies bucket
*
* @method _prepareCompanyBucket
* @return {Promise}
* @private
*/
_prepareCompanyBucket: function () {
var id = 'company_' + uuid.v4();
return this._prepareBucket('companies', this._company, {
id: id
}).then(function () {
return this._connection.getObjectAsJSON('companies', this._company).then(function (info) {
this._companyInfo = info;
}.bind(this));
}.bind(this));
},
/**
* Prepare the departments bucket
*
* @method _prepareDepartmentBucket
* @return {Promise}
* @private
*/
_prepareDepartmentBucket: function () {
var id = 'department_' + uuid.v4();
return this._prepareBucket('departments', this._department, {
id: id
}).then(function () {
return this._connection.getObjectAsJSON('departments', this._department).then(function (info) {
this._departmentInfo = info;
}.bind(this));
}.bind(this));
},
/**
* Prepare the projects bucket
*
* @method _prepareProjectBucket
* @return {Promise}
* @private
*/
_prepareProjectBucket: function () {
var id = 'project_' + uuid.v4();
return this._prepareBucket('projects', this._project, {
id: id
}).then(function () {
return this._connection.getObjectAsJSON('projects', this._project).then(function (info) {
this._projectInfo = info;
}.bind(this));
}.bind(this));
},
/**
* Prepare the jobs bucket
*
* @method _prepareJobBucket
* @return {Promise}
* @private
*/
_prepareJobBucket: function () {
var id = 'job_' + uuid.v4();
return this._prepareBucket('jobs', this._job, {
id: id,
approvedScreensBucket: this._getCurrentApprovedScreenBucket(id)
}).then(function () {
return this._connection.getObjectAsJSON('jobs', this._job).then(function (info) {
this._jobInfo = info;
}.bind(this));
}.bind(this));
},
/**
* Prepare the build bucket
*
* @method _prepareBuildBucket
* @return {Promise}
* @private
*/
_prepareBuildBucket: function () {
var id = 'build_' + uuid.v4();
this._buildInfo = {
id: id,
creationTime: +(new Date()),
approvedScreensBucket: this._getApprovedScreenBucket(id),
highlightScreensBucket: this._getHighlightScreenBucket(id),
buildScreensBucket: this._getBuildScreenBucket(id)
};
return this._prepareBucket('builds', this._build, this._buildInfo, true);
},
/**
* Loads an image blob and returns a promise for it
*
* @method _loadImage
* @param {Buffer} blob
* @returns {Promise} With {PNGImage} Image
* @private
*/
_loadImage: function (blob) {
return new Promise(function (resolve, reject) {
PNGImage.loadImage(blob, function (err, image) {
if (err) {
reject(err);
} else {
resolve(image);
}
});
})
},
/**
* Saves an image to a blob and returns a promise for it
*
* @method _blobImage
* @param {PNGImage} image
* @returns {Promise} With {Buffer} Blob
* @private
*/
_blobImage: function (image) {
return new Promise(function (resolve, reject) {
image.toBlob(function (err, blob) {
if (err) {
reject(err);
} else {
resolve(blob);
}
});
})
},
/**
* Gets the current approved-screen bucket
*
* @method _getCurrentApprovedScreenBucket
* @param {string} [id]
* @return {string}
* @private
*/
_getCurrentApprovedScreenBucket: function (id) {
return (id || this._jobInfo.id) + '_approved';
},
/**
* Gets the approved-screen bucket
*
* @method _getApprovedScreenBucket
* @param {string} [id]
* @return {string}
* @private
*/
_getApprovedScreenBucket: function (id) {
return (id || this._buildInfo.id) + '_approved';
},
/**
* Gets the highlight-screen bucket
*
* @method _getHighlightScreenBucket
* @param {string} [id]
* @return {string}
* @private
*/
_getHighlightScreenBucket: function (id) {
return (id || this._buildInfo.id) + '_highlight';
},
/**
* Gets the build-screen bucket
*
* @method _getBuildScreenBucket
* @param {string} [id]
* @return {string}
* @private
*/
_getBuildScreenBucket: function (id) {
return (id || this._buildInfo.id) + '_build';
},
/**
* Key filter for bucket keys
*
* @method _bucketKeyFilter
* @param {string} key
* @return {boolean}
* @private
*/
_bucketKeyFilter: function (key) {
return (key.substr(0, 1) !== '_');
},
/**
* Gets a list of currently approve screen names
*
* @method getCurrentApprovedScreenNames
* @return {Promise} With {string[]} List of approved screen names
*/
getCurrentApprovedScreenNames: function () {
return this.getPromise().then(function () {
return this._connection.getBucketKeys(this._getCurrentApprovedScreenBucket());
}.bind(this));
},
/**
* Gets a specific currently approved screen
*
* @method getCurrentApprovedScreen
* @param {string} name Name of approved screen
* @return {Promise} With {PNGImage} Approved screen
*/
getCurrentApprovedScreen: function (name) {
return this.getPromise().then(function () {
return this._connection.getObject(this._getCurrentApprovedScreenBucket(), name);
}.bind(this)).then(function (blob) {
return this._loadImage(blob);
});
},
/**
* Archives a specific currently approved screen
*
* @method archiveCurrentApprovedScreen
* @param {string} name Name of approved screen
* @param {PNGImage} image Screen to archive
* @return {Promise}
*/
archiveCurrentApprovedScreen: function (name, image) {
return this.getPromise().then(function () {
return this._blobImage(image);
}.bind(this)).then(function (blob) {
return this._connection.setObject(this._getCurrentApprovedScreenBucket(), name, blob, 'image/png');
}.bind(this));
},
/**
* Gets a list of approve screen names
*
* @method getApprovedScreenNames
* @return {Promise} With {string[]} List of approved screen names
*/
getApprovedScreenNames: function () {
return this.getPromise().then(function () {
return this._connection.getBucketKeys(this._getApprovedScreenBucket());
}.bind(this));
},
/**
* Gets a specific approved screen
*
* @method getApprovedScreen
* @param {string} name Name of approved screen
* @return {Promise} With {PNGImage} Approved screen
*/
getApprovedScreen: function (name) {
return this.getPromise().then(function () {
return this._connection.getObject(this._getApprovedScreenBucket(), name);
}.bind(this)).then(function (blob) {
return this._loadImage(blob);
});
},
/**
* Archives a specific approved screen
*
* @method archiveApprovedScreen
* @param {string} name Name of approved screen
* @param {PNGImage} image Screen to archive
* @return {Promise}
*/
archiveApprovedScreen: function (name, image) {
return this.getPromise().then(function () {
return this._blobImage(image);
}.bind(this)).then(function (blob) {
return this._connection.setObject(this._getApprovedScreenBucket(), name, blob, 'image/png');
}.bind(this));
},
/**
* Gets a list of build screen names
*
* @method getBuildScreenNames
* @return {Promise} With {string[]} List of build screen names
*/
getBuildScreenNames: function () {
return this.getPromise().then(function () {
return this._connection.getBucketKeys(this._getBuildScreenBucket());
}.bind(this));
},
/**
* Gets a specific build screen
*
* @method getBuildScreen
* @param {string} name Name of build screen
* @return {Promise} With {PNGImage}
*/
getBuildScreen: function (name) {
return this.getPromise().then(function () {
return this._connection.getObject(this._getBuildScreenBucket(), name);
}.bind(this)).then(function (blob) {
return this._loadImage(blob);
});
},
/**
* Archives a specific build screen
*
* @method archiveBuildScreen
* @param {string} name Name of build screen
* @param {PNGImage} image Screen to archive
* @return {Promise}
*/
archiveBuildScreen: function (name, image) {
return this.getPromise().then(function () {
return this._blobImage(image);
}.bind(this)).then(function (blob) {
return this._connection.setObject(this._getBuildScreenBucket(), name, blob, 'image/png');
}.bind(this));
},
/**
* Gets a list of build highlight names
*
* @method getHighlightScreenNames
* @return {Promise} With {string[]} List of build screen names
*/
getHighlightScreenNames: function () {
return this.getPromise().then(function () {
return this._connection.getBucketKeys(this._getHighlightScreenBucket());
}.bind(this));
},
/**
* Gets a specific highlight screen
*
* @method getHighlightScreen
* @param {string} name Name of build screen
* @return {Promise} With {PNGImage} Build screen
*/
getHighlightScreen: function (name) {
return this.getPromise().then(function () {
return this._connection.getObject(this._getHighlightScreenBucket(), name);
}.bind(this)).then(function (blob) {
return this._loadImage(blob);
});
},
/**
* Archives a specific highlight screen
*
* @method archiveHighlightScreen
* @param {string} name Name of highlight screen
* @param {PNGImage} image Screen to archive
* @return {Promise}
*/
archiveHighlightScreen: function (name, image) {
return this.getPromise().then(function () {
return this._blobImage(image);
}.bind(this)).then(function (blob) {
return this._connection.setObject(this._getHighlightScreenBucket(), name, blob, 'image/png');
}.bind(this));
}
},
{
/**
* Type of class
*
* @property TYPE
* @type string
*/
TYPE: 'KeyValueStorageAdapter'
});
module.exports = KeyValueStorageAdapter;
|