js/storage: Allow to set the storage backend

This commit is contained in:
Eric Lippmann 2019-07-29 10:16:36 +02:00 committed by Johannes Meyer
parent c66d206042
commit a1a18feb04

View File

@ -21,6 +21,13 @@
* @type {string} * @type {string}
*/ */
this.prefix = prefix; this.prefix = prefix;
/**
* Storage backend
*
* @type {Storage}
*/
this.backend = window.localStorage;
}; };
/** /**
@ -85,6 +92,15 @@
Icinga.Storage.prototype = { Icinga.Storage.prototype = {
/**
* Set the storage backend
*
* @param {Storage} backend
*/
setBackend: function(backend) {
this.backend = backend;
},
/** /**
* Prefix the given key * Prefix the given key
* *
@ -110,7 +126,7 @@
* @returns {void} * @returns {void}
*/ */
set: function(key, value) { set: function(key, value) {
window.localStorage.setItem(this.prefixKey(key), JSON.stringify(value)); this.backend.setItem(this.prefixKey(key), JSON.stringify(value));
}, },
/** /**
@ -122,14 +138,14 @@
*/ */
get: function(key) { get: function(key) {
key = this.prefixKey(key); key = this.prefixKey(key);
var value = window.localStorage.getItem(key); var value = this.backend.getItem(key);
try { try {
return JSON.parse(value); return JSON.parse(value);
} catch(error) { } catch(error) {
icinga.logger.error('[Storage] Failed to parse value (\`' + value icinga.logger.error('[Storage] Failed to parse value (\`' + value
+ '\`) of key "' + key + '". Error was: ' + error); + '\`) of key "' + key + '". Error was: ' + error);
window.localStorage.removeItem(key); this.backend.removeItem(key);
return null; return null;
} }
}, },
@ -142,7 +158,7 @@
* @returns {void} * @returns {void}
*/ */
remove: function(key) { remove: function(key) {
window.localStorage.removeItem(this.prefixKey(key)); this.backend.removeItem(this.prefixKey(key));
}, },
/** /**