offshore
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<a href="../../../index.html">all files</a> / <a href="index.html">lib/offshore/connections/</a> index.js
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<span class="strong">72.73% </span>
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<span class="cline-any cline-neutral"> </span></td><td class="text"><pre class="prettyprint lang-js">/**
* Module Dependencies
*/
var _ = require('lodash');
var util = require('util');
var hasOwnProperty = require('../utils/helpers').object.hasOwnProperty;
/**
* Connections are active "connections" to a specific adapter for a specific configuration.
* This allows you to have collections share named connections.
*
* @param {Object} adapters
* @param {Object} objects
* @api public
*/
var Connections = module.exports = function(adapters, options) {
// Hold the active connections
this._connections = {};
// Build the connections
this._build(adapters, options);
return this._connections;
};
/**
* Builds up a named connections object with a clone of the adapter
* it will use for the connection.
*
* @param {Object} adapters
* @param {Object} options
* @api private
*/
Connections.prototype._build = function _build(adapters, options) {
var self = this;
// For each of the configured connections in options, find the required
// adapter by name and build up an object that can be attached to the
// internal connections object.
Object.keys(options).forEach(function(key) {
var config = options[key];
var msg,
connection;
// Ensure an adapter module is specified
<span class="missing-if-branch" title="if path not taken" >I</span>if (!hasOwnProperty(config, 'adapter')) {
<span class="cstat-no" title="statement not covered" > msg = util.format('Connection ("%s") is missing a required property (`adapter`). You should indicate the name of one of your adapters.', key);</span>
<span class="cstat-no" title="statement not covered" > throw new Error(msg);</span>
}
// Ensure the adapter exists in the adapters options
<span class="missing-if-branch" title="if path not taken" >I</span>if (!hasOwnProperty(adapters, config.adapter)) {
<span class="cstat-no" title="statement not covered" > if (typeof config.adapter !== 'string') {</span>
<span class="cstat-no" title="statement not covered" > msg = util.format('Invalid `adapter` property in connection `%s`. It should be a string (the name of one of the adapters you passed into `offshore.initialize()`)', key);</span>
}
else <span class="cstat-no" title="statement not covered" >msg = util.format('Unknown adapter "%s" for connection `%s`. You should double-check that the connection\'s `adapter` property matches the name of one of your adapters. Or perhaps you forgot to include your "%s" adapter when you called `offshore.initialize()`...', config.adapter, key, config.adapter);</span>
<span class="cstat-no" title="statement not covered" > throw new Error(msg);</span>
}
// Build the connection config
connection = {
config: _.merge({}, adapters[config.adapter].defaults, config),
_adapter: _.cloneDeep(adapters[config.adapter]),
_collections: []
};
// Attach the connections to the connection library
self._connections[key] = connection;
});
};
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