root / snf-cyclades-app / synnefo / ui / static / snf / js / sync.js @ 435bb7fb
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1 | 00469232 | Kostas Papadimitriou | // Copyright 2011 GRNET S.A. All rights reserved.
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2 | 00469232 | Kostas Papadimitriou | //
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3 | 00469232 | Kostas Papadimitriou | // Redistribution and use in source and binary forms, with or
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4 | 00469232 | Kostas Papadimitriou | // without modification, are permitted provided that the following
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5 | 00469232 | Kostas Papadimitriou | // conditions are met:
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6 | 00469232 | Kostas Papadimitriou | //
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7 | 00469232 | Kostas Papadimitriou | // 1. Redistributions of source code must retain the above
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8 | 00469232 | Kostas Papadimitriou | // copyright notice, this list of conditions and the following
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9 | 00469232 | Kostas Papadimitriou | // disclaimer.
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10 | 00469232 | Kostas Papadimitriou | //
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11 | 00469232 | Kostas Papadimitriou | // 2. Redistributions in binary form must reproduce the above
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12 | 00469232 | Kostas Papadimitriou | // copyright notice, this list of conditions and the following
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13 | 00469232 | Kostas Papadimitriou | // disclaimer in the documentation and/or other materials
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14 | 00469232 | Kostas Papadimitriou | // provided with the distribution.
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15 | 00469232 | Kostas Papadimitriou | //
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16 | 00469232 | Kostas Papadimitriou | // THIS SOFTWARE IS PROVIDED BY GRNET S.A. ``AS IS'' AND ANY EXPRESS
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17 | 00469232 | Kostas Papadimitriou | // OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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18 | 00469232 | Kostas Papadimitriou | // WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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19 | 00469232 | Kostas Papadimitriou | // PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GRNET S.A OR
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20 | 00469232 | Kostas Papadimitriou | // CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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21 | 00469232 | Kostas Papadimitriou | // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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22 | 00469232 | Kostas Papadimitriou | // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
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23 | 00469232 | Kostas Papadimitriou | // USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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24 | 00469232 | Kostas Papadimitriou | // AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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25 | 00469232 | Kostas Papadimitriou | // LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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26 | 00469232 | Kostas Papadimitriou | // ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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27 | 00469232 | Kostas Papadimitriou | // POSSIBILITY OF SUCH DAMAGE.
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28 | 00469232 | Kostas Papadimitriou | //
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29 | 00469232 | Kostas Papadimitriou | // The views and conclusions contained in the software and
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30 | 00469232 | Kostas Papadimitriou | // documentation are those of the authors and should not be
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31 | 00469232 | Kostas Papadimitriou | // interpreted as representing official policies, either expressed
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32 | 00469232 | Kostas Papadimitriou | // or implied, of GRNET S.A.
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33 | 00469232 | Kostas Papadimitriou | //
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34 | 00469232 | Kostas Papadimitriou | |
35 | 8d08f18a | Kostas Papadimitriou | ;(function(root){
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36 | 8d08f18a | Kostas Papadimitriou | |
37 | 8d08f18a | Kostas Papadimitriou | // root
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38 | 8d08f18a | Kostas Papadimitriou | var root = root;
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39 | 8d08f18a | Kostas Papadimitriou | |
40 | 8d08f18a | Kostas Papadimitriou | // setup namepsaces
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41 | 8d08f18a | Kostas Papadimitriou | var snf = root.synnefo = root.synnefo || {};
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42 | 8d08f18a | Kostas Papadimitriou | var sync = snf.sync = snf.sync || {};
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43 | 8d08f18a | Kostas Papadimitriou | var api = snf.api = snf.api || {};
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44 | 9ce969a7 | Kostas Papadimitriou | var storage = snf.storage = snf.storage || {};
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45 | 8d08f18a | Kostas Papadimitriou | |
46 | 8d08f18a | Kostas Papadimitriou | // shortcuts
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47 | 8d08f18a | Kostas Papadimitriou | var bb = Backbone;
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48 | 8d08f18a | Kostas Papadimitriou | |
49 | 8d08f18a | Kostas Papadimitriou | // logging
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50 | 8d08f18a | Kostas Papadimitriou | var logger = new snf.logging.logger("SNF-API"); |
51 | 8d08f18a | Kostas Papadimitriou | var debug = _.bind(logger.debug, logger)
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52 | 8d08f18a | Kostas Papadimitriou | |
53 | 8d08f18a | Kostas Papadimitriou | // method map
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54 | 8d08f18a | Kostas Papadimitriou | var methodMap = {
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55 | 8d08f18a | Kostas Papadimitriou | 'create': 'POST', |
56 | 8d08f18a | Kostas Papadimitriou | 'update': 'PUT', |
57 | 8d08f18a | Kostas Papadimitriou | 'delete': 'DELETE', |
58 | 258235f4 | Kostas Papadimitriou | 'read' : 'GET', |
59 | 258235f4 | Kostas Papadimitriou | 'head' : 'HEAD' |
60 | 8d08f18a | Kostas Papadimitriou | }; |
61 | 8d08f18a | Kostas Papadimitriou | |
62 | 8d08f18a | Kostas Papadimitriou | // custom getUrl function
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63 | 8d08f18a | Kostas Papadimitriou | // handles url retrieval based on the object passed
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64 | 8d08f18a | Kostas Papadimitriou | // on most occasions in the synnefo api this will call
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65 | 8d08f18a | Kostas Papadimitriou | // the model/collection url method
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66 | 2cee7cb0 | Kostas Papadimitriou | var getUrl = function(object, options, method) { |
67 | 8d08f18a | Kostas Papadimitriou | if (!(object && object.url)) return null; |
68 | 2cee7cb0 | Kostas Papadimitriou | return _.isFunction(object.url) ? object.url(options, method) : object.url;
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69 | 8d08f18a | Kostas Papadimitriou | }; |
70 | 8d08f18a | Kostas Papadimitriou | |
71 | 8d08f18a | Kostas Papadimitriou | // Call history (set of api paths with the dates the path last called)
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72 | 8d08f18a | Kostas Papadimitriou | var api_history = api.requests = api.requests || {};
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73 | f06ec46e | Kostas Papadimitriou | var addApiCallDate = function(url, d, method) { |
74 | 8d08f18a | Kostas Papadimitriou | if (d === undefined) { d = Date() }; |
75 | 8d08f18a | Kostas Papadimitriou | var path = snf.util.parseUri(url).path;
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76 | 9ce969a7 | Kostas Papadimitriou | var key = path + "_" + method; |
77 | 9ce969a7 | Kostas Papadimitriou | |
78 | 9ce969a7 | Kostas Papadimitriou | // TODO: check if d is very old date
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79 | 9ce969a7 | Kostas Papadimitriou | api_history[key] = d; |
80 | 8d08f18a | Kostas Papadimitriou | return api_history[path]
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81 | 8d08f18a | Kostas Papadimitriou | } |
82 | 9ce969a7 | Kostas Papadimitriou | |
83 | 9ce969a7 | Kostas Papadimitriou | var clearApiCallDate = function(url, method) { |
84 | 9ce969a7 | Kostas Papadimitriou | var path = snf.util.parseUri(url).path;
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85 | 9ce969a7 | Kostas Papadimitriou | var key = path + "_" + method; |
86 | 9ce969a7 | Kostas Papadimitriou | api_history[key] = false;
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87 | 9ce969a7 | Kostas Papadimitriou | return api_history[path]
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88 | 9ce969a7 | Kostas Papadimitriou | } |
89 | 9ce969a7 | Kostas Papadimitriou | |
90 | 8d08f18a | Kostas Papadimitriou | var api_errors = api.errors = api.errors || [];
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91 | 8d08f18a | Kostas Papadimitriou | var add_api_error = function(settings, data) { |
92 | 8d08f18a | Kostas Papadimitriou | api_errors.push({url:settings.url, date:new Date, settings:settings, data:data}) |
93 | 8d08f18a | Kostas Papadimitriou | } |
94 | 8d08f18a | Kostas Papadimitriou | |
95 | f06ec46e | Kostas Papadimitriou | var setChangesSince = function(url, method) { |
96 | 8d08f18a | Kostas Papadimitriou | var path = snf.util.parseUri(url).path;
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97 | f06ec46e | Kostas Papadimitriou | var d = api_history[path + "_" + method]; |
98 | 8d08f18a | Kostas Papadimitriou | if (d) {
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99 | 6de7fde5 | Kostas Papadimitriou | // subtract threshold
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100 | 6de7fde5 | Kostas Papadimitriou | d = new Date(d - synnefo.config.changes_since_alignment);
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101 | 6de7fde5 | Kostas Papadimitriou | url = url + "?changes-since=" + snf.util.ISODateString(d);
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102 | 8d08f18a | Kostas Papadimitriou | } |
103 | 8d08f18a | Kostas Papadimitriou | return url;
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104 | 8d08f18a | Kostas Papadimitriou | } |
105 | 8d08f18a | Kostas Papadimitriou | |
106 | 8d08f18a | Kostas Papadimitriou | // custom sync method
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107 | 8d08f18a | Kostas Papadimitriou | // appends global ajax handlers
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108 | 8d08f18a | Kostas Papadimitriou | // handles changed-since url parameter based on api path
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109 | 8d08f18a | Kostas Papadimitriou | api.sync = function(method, model, options) { |
110 | 2cee7cb0 | Kostas Papadimitriou | |
111 | 8d08f18a | Kostas Papadimitriou | var type = methodMap[method];
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112 | 8d08f18a | Kostas Papadimitriou | |
113 | 8d08f18a | Kostas Papadimitriou | if (model && (model.skipMethods || []).indexOf(method) >= 0) { |
114 | 8d08f18a | Kostas Papadimitriou | throw "Model does not support " + method + " calls"; |
115 | 8d08f18a | Kostas Papadimitriou | } |
116 | dbe026f9 | Kostas Papadimitriou | |
117 | 8d08f18a | Kostas Papadimitriou | if (!options.url) {
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118 | dbe026f9 | Kostas Papadimitriou | var urlobject = model;
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119 | dbe026f9 | Kostas Papadimitriou | |
120 | dbe026f9 | Kostas Papadimitriou | // fallback to collection url for item creation
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121 | dbe026f9 | Kostas Papadimitriou | if (method == "create" && model.isNew && model.isNew()) { |
122 | dbe026f9 | Kostas Papadimitriou | urlobject = model.collection; |
123 | dbe026f9 | Kostas Papadimitriou | } |
124 | dbe026f9 | Kostas Papadimitriou | |
125 | 2cee7cb0 | Kostas Papadimitriou | options.url = getUrl(urlobject, options, method) || urlError(); |
126 | e97e7c44 | Kostas Papadimitriou | if (urlobject && urlobject.supportIncUpdates) {
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127 | 16392650 | Kostas Papadimitriou | options.url = options.refresh ? options.url : setChangesSince(options.url, type); |
128 | 16392650 | Kostas Papadimitriou | } |
129 | 8d08f18a | Kostas Papadimitriou | if (!options.refresh && options.cache === undefined) { |
130 | 8d08f18a | Kostas Papadimitriou | options.cache = true;
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131 | 8d08f18a | Kostas Papadimitriou | } |
132 | 8d08f18a | Kostas Papadimitriou | } |
133 | 8d08f18a | Kostas Papadimitriou | |
134 | 9ce969a7 | Kostas Papadimitriou | // default error options
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135 | 9ce969a7 | Kostas Papadimitriou | options.critical = options.critical === undefined ? true : options.critical; |
136 | 9ce969a7 | Kostas Papadimitriou | options.display = options.display === undefined ? true : options.display; |
137 | 9ce969a7 | Kostas Papadimitriou | |
138 | 9ce969a7 | Kostas Papadimitriou | if (api.stop_calls && !options.no_skip) {
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139 | 8d08f18a | Kostas Papadimitriou | return;
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140 | 8d08f18a | Kostas Papadimitriou | } |
141 | 8d08f18a | Kostas Papadimitriou | |
142 | 8d08f18a | Kostas Papadimitriou | var success = options.success || function(){}; |
143 | 8d08f18a | Kostas Papadimitriou | var error = options.error || function(){}; |
144 | 8d08f18a | Kostas Papadimitriou | var complete = options.complete || function(){}; |
145 | 8d08f18a | Kostas Papadimitriou | var before_send = options.beforeSend || function(){}; |
146 | 8d08f18a | Kostas Papadimitriou | |
147 | 8d08f18a | Kostas Papadimitriou | // custom json data.
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148 | 8d08f18a | Kostas Papadimitriou | if (options.data && model && (method == 'create' || method == 'update')) { |
149 | 8d08f18a | Kostas Papadimitriou | options.contentType = 'application/json';
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150 | 8d08f18a | Kostas Papadimitriou | options.data = JSON.stringify(options.data); |
151 | 8d08f18a | Kostas Papadimitriou | } |
152 | 258235f4 | Kostas Papadimitriou | options.data = _.isEmpty(options.data) ? undefined : options.data;
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153 | 8d08f18a | Kostas Papadimitriou | var api_params = {};
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154 | 8d08f18a | Kostas Papadimitriou | var api_options = _.extend(api_params, options, {
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155 | 8d08f18a | Kostas Papadimitriou | success: api.handlerWrapper(api.successHandler, success, "success"), |
156 | 8d08f18a | Kostas Papadimitriou | error: api.handlerWrapper(api.errorHandler, error, "error"), |
157 | 8d08f18a | Kostas Papadimitriou | complete: api.handlerWrapper(api.completeHandler, complete, "complete"), |
158 | 8d08f18a | Kostas Papadimitriou | beforeSend: api.handlerWrapper(api.beforeSendHandler, before_send, "beforeSend"), |
159 | 8d08f18a | Kostas Papadimitriou | cache: options.cache || false, |
160 | 66be390b | Kostas Papadimitriou | timeout: options.timeout || snf.config.ajax_timeout || window.TIMEOUT || 5000 |
161 | 8d08f18a | Kostas Papadimitriou | }); |
162 | 8d08f18a | Kostas Papadimitriou | return bb.sync(method, model, api_options);
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163 | 8d08f18a | Kostas Papadimitriou | } |
164 | 8d08f18a | Kostas Papadimitriou | |
165 | 9ce969a7 | Kostas Papadimitriou | api.timeouts_occured = 0;
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166 | 9ce969a7 | Kostas Papadimitriou | |
167 | 8d08f18a | Kostas Papadimitriou | api.handlerWrapper = function(wrap, method, type) { |
168 | 9ce969a7 | Kostas Papadimitriou | |
169 | 8d08f18a | Kostas Papadimitriou | var cb_type = type;
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170 | 9ce969a7 | Kostas Papadimitriou | |
171 | 8d08f18a | Kostas Papadimitriou | return function() { |
172 | 8d08f18a | Kostas Papadimitriou | |
173 | 9ce969a7 | Kostas Papadimitriou | var xhr = undefined; |
174 | 9ce969a7 | Kostas Papadimitriou | var handler_type = type;
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175 | 9ce969a7 | Kostas Papadimitriou | var args = arguments; |
176 | 9ce969a7 | Kostas Papadimitriou | var ajax_options = this; |
177 | 9ce969a7 | Kostas Papadimitriou | |
178 | 9ce969a7 | Kostas Papadimitriou | // save the request date to use it as a changes-since value
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179 | 9ce969a7 | Kostas Papadimitriou | // for opera because we are not able to determine
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180 | 9ce969a7 | Kostas Papadimitriou | // response date header for 304 requests
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181 | 9ce969a7 | Kostas Papadimitriou | if (handler_type == "beforeSend" && $.browser.opera) { |
182 | 9ce969a7 | Kostas Papadimitriou | this.date_send = new Date; |
183 | 9ce969a7 | Kostas Papadimitriou | } |
184 | 9ce969a7 | Kostas Papadimitriou | |
185 | 85f1cd1e | Kostas Papadimitriou | if (handler_type == "beforeSend") { |
186 | afe9ca75 | Kostas Papadimitriou | arguments[0].setRequestHeader('X-Auth-Token', |
187 | afe9ca75 | Kostas Papadimitriou | synnefo.user.get_token()); |
188 | 85f1cd1e | Kostas Papadimitriou | } |
189 | 85f1cd1e | Kostas Papadimitriou | |
190 | 9ce969a7 | Kostas Papadimitriou | // error with status code 0 in opera
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191 | 9ce969a7 | Kostas Papadimitriou | // act as 304 response
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192 | 9ce969a7 | Kostas Papadimitriou | if (handler_type == "error" && $.browser.opera) { |
193 | 9ce969a7 | Kostas Papadimitriou | if (arguments[0].status === 0 && arguments[1] === "error") { |
194 | 9ce969a7 | Kostas Papadimitriou | arguments[0].status = 304; |
195 | 9ce969a7 | Kostas Papadimitriou | arguments[1] = "notmodified"; |
196 | 9ce969a7 | Kostas Papadimitriou | response_type = "success";
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197 | 9ce969a7 | Kostas Papadimitriou | xhr = arguments[0]; |
198 | 9ce969a7 | Kostas Papadimitriou | } |
199 | 9ce969a7 | Kostas Papadimitriou | } |
200 | 9ce969a7 | Kostas Papadimitriou | |
201 | 9ce969a7 | Kostas Papadimitriou | // add error in api errors registry
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202 | 9ce969a7 | Kostas Papadimitriou | // api errors registry will be sent
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203 | 9ce969a7 | Kostas Papadimitriou | // if user reports an error using feedback form
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204 | 9ce969a7 | Kostas Papadimitriou | if (handler_type == "error") { |
205 | ec511098 | Kostas Papadimitriou | // skip logging requested ?
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206 | ec511098 | Kostas Papadimitriou | // if not log this error
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207 | ec511098 | Kostas Papadimitriou | if (this.log_error !== false) { |
208 | ec511098 | Kostas Papadimitriou | add_api_error(this, arguments); |
209 | ec511098 | Kostas Papadimitriou | } |
210 | 8d08f18a | Kostas Papadimitriou | } |
211 | 6a3a5bf7 | Kostas Papadimitriou | |
212 | 9ce969a7 | Kostas Papadimitriou | // identify response status
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213 | 6a3a5bf7 | Kostas Papadimitriou | var status = 304; |
214 | 6a3a5bf7 | Kostas Papadimitriou | if (arguments[0]) { |
215 | 9ce969a7 | Kostas Papadimitriou | status = arguments[0].status; |
216 | 6a3a5bf7 | Kostas Papadimitriou | } |
217 | 8d08f18a | Kostas Papadimitriou | |
218 | 9ce969a7 | Kostas Papadimitriou | // identify aborted request
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219 | 8d08f18a | Kostas Papadimitriou | try {
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220 | 8d08f18a | Kostas Papadimitriou | if (args[1] === "abort") { |
221 | 8d08f18a | Kostas Papadimitriou | api.trigger("abort");
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222 | 8d08f18a | Kostas Papadimitriou | return;
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223 | 8d08f18a | Kostas Papadimitriou | } |
224 | 8d08f18a | Kostas Papadimitriou | } catch(error) {
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225 | 8d08f18a | Kostas Papadimitriou | console.error("error aborting", error);
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226 | 8d08f18a | Kostas Papadimitriou | } |
227 | 9ce969a7 | Kostas Papadimitriou | |
228 | 9ce969a7 | Kostas Papadimitriou | // try to set the last request date
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229 | 9ce969a7 | Kostas Papadimitriou | // only for notmodified or succeed responses
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230 | 8d08f18a | Kostas Papadimitriou | try {
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231 | 8d08f18a | Kostas Papadimitriou | // identify xhr object
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232 | 9ce969a7 | Kostas Papadimitriou | xhr = xhr || args[2];
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233 | 9ce969a7 | Kostas Papadimitriou | |
234 | 9ce969a7 | Kostas Papadimitriou | // not modified response
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235 | 9ce969a7 | Kostas Papadimitriou | if (args[1] === "notmodified") { |
236 | 9ce969a7 | Kostas Papadimitriou | if (xhr) {
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237 | 9ce969a7 | Kostas Papadimitriou | // use date_send if exists (opera browser)
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238 | 9ce969a7 | Kostas Papadimitriou | var d = this.date_send || xhr.getResponseHeader('Date'); |
239 | 9ce969a7 | Kostas Papadimitriou | if (d) { addApiCallDate(this.url, new Date(d), ajax_options.type); }; |
240 | 8d08f18a | Kostas Papadimitriou | } |
241 | aeadb7bf | Kostas Papadimitriou | |
242 | 8d08f18a | Kostas Papadimitriou | return;
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243 | 8d08f18a | Kostas Papadimitriou | } |
244 | 8d08f18a | Kostas Papadimitriou | |
245 | 9ce969a7 | Kostas Papadimitriou | // success response
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246 | 9ce969a7 | Kostas Papadimitriou | if (args[1] == "success" && handler_type == "success") { |
247 | 9ce969a7 | Kostas Papadimitriou | try {
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248 | 9ce969a7 | Kostas Papadimitriou | // use date_send if exists (opera browser)
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249 | 9ce969a7 | Kostas Papadimitriou | var d = this.date_send || args[2].getResponseHeader('Date'); |
250 | 9ce969a7 | Kostas Papadimitriou | if (d) { addApiCallDate(this.url, new Date(d), ajax_options.type); }; |
251 | 9ce969a7 | Kostas Papadimitriou | } catch (err) {
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252 | 9ce969a7 | Kostas Papadimitriou | console.error(err) |
253 | 9ce969a7 | Kostas Papadimitriou | } |
254 | 9ce969a7 | Kostas Papadimitriou | } |
255 | 8d08f18a | Kostas Papadimitriou | } catch (err) {
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256 | 8d08f18a | Kostas Papadimitriou | console.error(err); |
257 | 8d08f18a | Kostas Papadimitriou | } |
258 | 9ce969a7 | Kostas Papadimitriou | |
259 | 9ce969a7 | Kostas Papadimitriou | // dont call error callback for non modified responses
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260 | 9ce969a7 | Kostas Papadimitriou | if (arguments[1] === "notmodified") { |
261 | 9ce969a7 | Kostas Papadimitriou | return;
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262 | 9ce969a7 | Kostas Papadimitriou | } |
263 | aeadb7bf | Kostas Papadimitriou | |
264 | aeadb7bf | Kostas Papadimitriou | if (["beforeSend", "complete"].indexOf(cb_type) == -1 && this.is_recurrent) { |
265 | aeadb7bf | Kostas Papadimitriou | // trigger event to notify that a recurrent event
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266 | aeadb7bf | Kostas Papadimitriou | // has returned status other than notmodified
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267 | aeadb7bf | Kostas Papadimitriou | snf.api.trigger("change:recurrent");
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268 | aeadb7bf | Kostas Papadimitriou | } |
269 | 9ce969a7 | Kostas Papadimitriou | |
270 | 9ce969a7 | Kostas Papadimitriou | // prepare arguments for error callbacks
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271 | 9ce969a7 | Kostas Papadimitriou | var cb_args = _.toArray(arguments); |
272 | 9ce969a7 | Kostas Papadimitriou | if (handler_type === "error") { |
273 | 9ce969a7 | Kostas Papadimitriou | cb_args.push(_.clone(this));
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274 | 9ce969a7 | Kostas Papadimitriou | } |
275 | 9ce969a7 | Kostas Papadimitriou | |
276 | 9ce969a7 | Kostas Papadimitriou | // determine if we need to call our callback wrapper
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277 | 9ce969a7 | Kostas Papadimitriou | var call_api_handler = true; |
278 | c72a830d | Kostas Papadimitriou | |
279 | 9ce969a7 | Kostas Papadimitriou | // request handles errors by itself, s
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280 | 9ce969a7 | Kostas Papadimitriou | if (handler_type == "error" && this.skip_api_error) { |
281 | 9ce969a7 | Kostas Papadimitriou | call_api_handler = false
|
282 | 9ce969a7 | Kostas Papadimitriou | } |
283 | 9ce969a7 | Kostas Papadimitriou | |
284 | 9ce969a7 | Kostas Papadimitriou | // aborted request, don't call error handler
|
285 | 9ce969a7 | Kostas Papadimitriou | if (handler_type === "error" && args[1] === "abort") { |
286 | 9ce969a7 | Kostas Papadimitriou | call_api_handler = false;
|
287 | 9ce969a7 | Kostas Papadimitriou | } |
288 | 9ce969a7 | Kostas Papadimitriou | |
289 | 9ce969a7 | Kostas Papadimitriou | // reset api call date, next call will be sent without changes-since
|
290 | 9ce969a7 | Kostas Papadimitriou | // parameter set
|
291 | 9ce969a7 | Kostas Papadimitriou | if (handler_type === "error") { |
292 | 9ce969a7 | Kostas Papadimitriou | if (args[1] === "error") { |
293 | 9ce969a7 | Kostas Papadimitriou | clearApiCallDate(this.url, this.type); |
294 | 9ce969a7 | Kostas Papadimitriou | } |
295 | 9ce969a7 | Kostas Papadimitriou | } |
296 | 9ce969a7 | Kostas Papadimitriou | |
297 | 9ce969a7 | Kostas Papadimitriou | // call api call back and retrieve params to
|
298 | 9ce969a7 | Kostas Papadimitriou | // be passed to the callback method set for
|
299 | 9ce969a7 | Kostas Papadimitriou | // this type of response
|
300 | 9ce969a7 | Kostas Papadimitriou | if (call_api_handler) {
|
301 | 9ce969a7 | Kostas Papadimitriou | cb_args = wrap.apply(this, cb_args);
|
302 | 9ce969a7 | Kostas Papadimitriou | } |
303 | 9ce969a7 | Kostas Papadimitriou | |
304 | 9ce969a7 | Kostas Papadimitriou | // call requested callback
|
305 | 9ce969a7 | Kostas Papadimitriou | method.apply(this, _.toArray(cb_args));
|
306 | 8d08f18a | Kostas Papadimitriou | } |
307 | 8d08f18a | Kostas Papadimitriou | } |
308 | 8d08f18a | Kostas Papadimitriou | |
309 | 8d08f18a | Kostas Papadimitriou | api.successHandler = function(data, status, xhr) { |
310 | 8d08f18a | Kostas Papadimitriou | //debug("ajax success", arguments)
|
311 | 8d08f18a | Kostas Papadimitriou | // on success, update the last date we called the api url
|
312 | 8d08f18a | Kostas Papadimitriou | return [data, status, xhr];
|
313 | 8d08f18a | Kostas Papadimitriou | } |
314 | 8d08f18a | Kostas Papadimitriou | |
315 | 8d08f18a | Kostas Papadimitriou | api.errorHandler = function(event, xhr, settings, error) { |
316 | e472ed67 | Kostas Papadimitriou | // dont trigger api error until timeouts occured
|
317 | 9ce969a7 | Kostas Papadimitriou | // exceed the skips_timeouts limit
|
318 | 9ce969a7 | Kostas Papadimitriou | //
|
319 | 9ce969a7 | Kostas Papadimitriou | // check only requests with skips_timeouts option set
|
320 | aeadb7bf | Kostas Papadimitriou | |
321 | 9ce969a7 | Kostas Papadimitriou | if (xhr === "timeout" && _.last(arguments).skips_timeouts) { |
322 | 9ce969a7 | Kostas Papadimitriou | var skip_timeouts = snf.config.skip_timeouts || 1; |
323 | 9ce969a7 | Kostas Papadimitriou | if (snf.api.timeouts_occured < skip_timeouts) {
|
324 | 9ce969a7 | Kostas Papadimitriou | snf.api.timeouts_occured++; |
325 | 9ce969a7 | Kostas Papadimitriou | return;
|
326 | 9ce969a7 | Kostas Papadimitriou | } else {
|
327 | 40f6b82f | Kostas Papadimitriou | // reset trigger error
|
328 | 9ce969a7 | Kostas Papadimitriou | snf.api.timeouts_occured = 0;
|
329 | 40f6b82f | Kostas Papadimitriou | var args = _.toArray(arguments); |
330 | 40f6b82f | Kostas Papadimitriou | api.trigger("error", args);
|
331 | 9ce969a7 | Kostas Papadimitriou | } |
332 | 8d08f18a | Kostas Papadimitriou | } |
333 | 09f90e6e | Kostas Papadimitriou | |
334 | 09f90e6e | Kostas Papadimitriou | // if error occured and changes-since is set for the request
|
335 | 09f90e6e | Kostas Papadimitriou | // skip triggering the error and try again without the changes-since
|
336 | 09f90e6e | Kostas Papadimitriou | // parameter set
|
337 | 09f90e6e | Kostas Papadimitriou | var url = snf.util.parseUri(this.url); |
338 | 09f90e6e | Kostas Papadimitriou | if (url.query.indexOf("changes-since") > -1) { |
339 | 09f90e6e | Kostas Papadimitriou | clearApiCallDate(this.url, this.type); |
340 | 09f90e6e | Kostas Papadimitriou | return _.toArray(arguments); |
341 | 09f90e6e | Kostas Papadimitriou | } |
342 | 9ce969a7 | Kostas Papadimitriou | |
343 | 9ce969a7 | Kostas Papadimitriou | // skip aborts, notmodified (opera)
|
344 | 9ce969a7 | Kostas Papadimitriou | if (xhr === "error" || xhr === "timeout") { |
345 | 9ce969a7 | Kostas Papadimitriou | var args = _.toArray(arguments); |
346 | 9ce969a7 | Kostas Papadimitriou | api.trigger("error", args);
|
347 | 9ce969a7 | Kostas Papadimitriou | } |
348 | 9ce969a7 | Kostas Papadimitriou | |
349 | 9ce969a7 | Kostas Papadimitriou | return _.toArray(arguments); |
350 | 8d08f18a | Kostas Papadimitriou | } |
351 | 8d08f18a | Kostas Papadimitriou | |
352 | 8d08f18a | Kostas Papadimitriou | api.completeHandler = function(xhr, status) { |
353 | 8d08f18a | Kostas Papadimitriou | //debug("ajax complete", arguments)
|
354 | 8d08f18a | Kostas Papadimitriou | return arguments; |
355 | 8d08f18a | Kostas Papadimitriou | } |
356 | 8d08f18a | Kostas Papadimitriou | |
357 | 8d08f18a | Kostas Papadimitriou | api.beforeSendHandler = function(xhr, settings) { |
358 | 8d08f18a | Kostas Papadimitriou | //debug("ajax beforeSend", arguments)
|
359 | 8d08f18a | Kostas Papadimitriou | // ajax settings
|
360 | 8d08f18a | Kostas Papadimitriou | var ajax_settings = this; |
361 | 8d08f18a | Kostas Papadimitriou | return arguments; |
362 | 8d08f18a | Kostas Papadimitriou | } |
363 | 8d08f18a | Kostas Papadimitriou | |
364 | 9ce969a7 | Kostas Papadimitriou | // api call helper
|
365 | 9ce969a7 | Kostas Papadimitriou | api.call = function(url, method, data, complete, error, success, options) { |
366 | 8d08f18a | Kostas Papadimitriou | var self = this; |
367 | 8d08f18a | Kostas Papadimitriou | error = error || function(){};
|
368 | 8d08f18a | Kostas Papadimitriou | success = success || function(){};
|
369 | 8d08f18a | Kostas Papadimitriou | complete = complete || function(){};
|
370 | adab5d39 | Kostas Papadimitriou | var extra = data ? data._options || {} : {};
|
371 | bedfe884 | Kostas Papadimitriou | |
372 | 9ce969a7 | Kostas Papadimitriou | // really ugly way to pass sync request options.
|
373 | 9ce969a7 | Kostas Papadimitriou | // it works though....
|
374 | 9ce969a7 | Kostas Papadimitriou | if (data && data._options) { delete data['_options'] }; |
375 | 9ce969a7 | Kostas Papadimitriou | |
376 | 87a459ff | Kostas Papadimitriou | var base_url = snf.config.api_urls[this.api_type]; |
377 | 87a459ff | Kostas Papadimitriou | var join = '/'; |
378 | 87a459ff | Kostas Papadimitriou | // do not append trailling slash if already exists in url
|
379 | 87a459ff | Kostas Papadimitriou | if (base_url[base_url.length - 1] == join) { join = '' } |
380 | 87a459ff | Kostas Papadimitriou | |
381 | 9ce969a7 | Kostas Papadimitriou | // prepare the params
|
382 | 8d08f18a | Kostas Papadimitriou | var params = {
|
383 | 87a459ff | Kostas Papadimitriou | url: base_url + join + url,
|
384 | 8d08f18a | Kostas Papadimitriou | data: data,
|
385 | 8d08f18a | Kostas Papadimitriou | success: success,
|
386 | 8d08f18a | Kostas Papadimitriou | complete: function() { api.trigger("call"); complete(this) }, |
387 | 8d08f18a | Kostas Papadimitriou | error: error
|
388 | 8d08f18a | Kostas Papadimitriou | } |
389 | f06ec46e | Kostas Papadimitriou | |
390 | 9ce969a7 | Kostas Papadimitriou | params = _.extend(params, extra, options); |
391 | 8d08f18a | Kostas Papadimitriou | this.sync(method, this, params); |
392 | 8d08f18a | Kostas Papadimitriou | }, |
393 | 8d08f18a | Kostas Papadimitriou | |
394 | 8d08f18a | Kostas Papadimitriou | _.extend(api, bb.Events); |
395 | 8d08f18a | Kostas Papadimitriou | |
396 | 9ce969a7 | Kostas Papadimitriou | // helper for callbacks that need to get called
|
397 | 9ce969a7 | Kostas Papadimitriou | // in fixed intervals
|
398 | 8d08f18a | Kostas Papadimitriou | api.updateHandler = function(options) { |
399 | 8d08f18a | Kostas Papadimitriou | this.cb = options.callback;
|
400 | 258235f4 | Kostas Papadimitriou | this.handler_id = options.id;
|
401 | 8d08f18a | Kostas Papadimitriou | |
402 | aeadb7bf | Kostas Papadimitriou | // the interval with which we start
|
403 | aeadb7bf | Kostas Papadimitriou | this.interval = this.normal_interval = options.interval || 4000; |
404 | 8d08f18a | Kostas Papadimitriou | |
405 | aeadb7bf | Kostas Papadimitriou | // fast interval
|
406 | aeadb7bf | Kostas Papadimitriou | // set when faster() gets called
|
407 | aeadb7bf | Kostas Papadimitriou | this.fast_interval = options.fast || 1000; |
408 | aeadb7bf | Kostas Papadimitriou | |
409 | aeadb7bf | Kostas Papadimitriou | // after how many calls to increase the interval
|
410 | 1cc6e94f | Kostas Papadimitriou | this.interval_increase_count = options.increase_after_calls || 0; |
411 | aeadb7bf | Kostas Papadimitriou | |
412 | aeadb7bf | Kostas Papadimitriou | // increase the timer by this value after interval_increase_count calls
|
413 | aeadb7bf | Kostas Papadimitriou | this.interval_increase = options.increase || 500; |
414 | aeadb7bf | Kostas Papadimitriou | |
415 | aeadb7bf | Kostas Papadimitriou | // maximum interval limit
|
416 | aeadb7bf | Kostas Papadimitriou | this.maximum_interval = options.max || 60000; |
417 | aeadb7bf | Kostas Papadimitriou | |
418 | aeadb7bf | Kostas Papadimitriou | // make a call before interval starts
|
419 | aeadb7bf | Kostas Papadimitriou | this.call_on_start = options.initial_call === undefined ? true : options.initial_call; |
420 | aeadb7bf | Kostas Papadimitriou | |
421 | aeadb7bf | Kostas Papadimitriou | this.increase_enabled = this.interval_increase_count === 0; |
422 | edd1d565 | Kostas Papadimitriou | |
423 | aeadb7bf | Kostas Papadimitriou | if (this.increase_enabled) { |
424 | aeadb7bf | Kostas Papadimitriou | this.maximum_interval = this.interval; |
425 | aeadb7bf | Kostas Papadimitriou | this.interval_increase_count = 1; |
426 | aeadb7bf | Kostas Papadimitriou | } |
427 | aeadb7bf | Kostas Papadimitriou | |
428 | aeadb7bf | Kostas Papadimitriou | // inner params
|
429 | aeadb7bf | Kostas Papadimitriou | this._called = 0; |
430 | aeadb7bf | Kostas Papadimitriou | this._first_call_date = undefined; |
431 | aeadb7bf | Kostas Papadimitriou | this.window_interval = undefined; |
432 | aeadb7bf | Kostas Papadimitriou | |
433 | aeadb7bf | Kostas Papadimitriou | // state params
|
434 | edd1d565 | Kostas Papadimitriou | this.running = false; |
435 | b1e6a2de | Kostas Papadimitriou | this.last_call = false; |
436 | 8d08f18a | Kostas Papadimitriou | |
437 | aeadb7bf | Kostas Papadimitriou | // helper for api calls
|
438 | aeadb7bf | Kostas Papadimitriou | // TODO: move this out of here :/
|
439 | aeadb7bf | Kostas Papadimitriou | if (options.is_recurrent) {
|
440 | aeadb7bf | Kostas Papadimitriou | snf.api.bind("change:recurrent", _.bind(function() { |
441 | 40f6b82f | Kostas Papadimitriou | if (this.running) { |
442 | 40f6b82f | Kostas Papadimitriou | this.faster(true); |
443 | 40f6b82f | Kostas Papadimitriou | } |
444 | aeadb7bf | Kostas Papadimitriou | }, this));
|
445 | aeadb7bf | Kostas Papadimitriou | } |
446 | aeadb7bf | Kostas Papadimitriou | |
447 | aeadb7bf | Kostas Papadimitriou | // callback wrapper
|
448 | 258235f4 | Kostas Papadimitriou | this._cb = function() { |
449 | 40f6b82f | Kostas Papadimitriou | if (!this.running) { this.stop() } |
450 | aeadb7bf | Kostas Papadimitriou | if (this._called >= this.interval_increase_count) { |
451 | aeadb7bf | Kostas Papadimitriou | this._called = 0; |
452 | aeadb7bf | Kostas Papadimitriou | this.slower(false); |
453 | 8d08f18a | Kostas Papadimitriou | } |
454 | aeadb7bf | Kostas Papadimitriou | |
455 | 8d08f18a | Kostas Papadimitriou | this.cb();
|
456 | b1e6a2de | Kostas Papadimitriou | this.last_call = new Date; |
457 | aeadb7bf | Kostas Papadimitriou | this._called++;
|
458 | 8d08f18a | Kostas Papadimitriou | }; |
459 | edd1d565 | Kostas Papadimitriou | |
460 | aeadb7bf | Kostas Papadimitriou | // start from faster timeout and start increasing
|
461 | 35855ff5 | Kostas Papadimitriou | this.faster = function(do_call) { |
462 | aeadb7bf | Kostas Papadimitriou | if (!this.running) { return } |
463 | 1cc6e94f | Kostas Papadimitriou | |
464 | aeadb7bf | Kostas Papadimitriou | this.interval = this.fast_interval; |
465 | 35855ff5 | Kostas Papadimitriou | this.setInterval(do_call);
|
466 | 8d08f18a | Kostas Papadimitriou | } |
467 | 8d08f18a | Kostas Papadimitriou | |
468 | aeadb7bf | Kostas Papadimitriou | // slow down
|
469 | aeadb7bf | Kostas Papadimitriou | this.slower = function(do_call) { |
470 | aeadb7bf | Kostas Papadimitriou | if (this.interval == this.maximum_interval) { |
471 | aeadb7bf | Kostas Papadimitriou | // no need to increase
|
472 | aeadb7bf | Kostas Papadimitriou | return;
|
473 | aeadb7bf | Kostas Papadimitriou | } |
474 | aeadb7bf | Kostas Papadimitriou | |
475 | 1cc6e94f | Kostas Papadimitriou | this.interval = this.interval + this.interval_increase; |
476 | aeadb7bf | Kostas Papadimitriou | // increase timeout
|
477 | aeadb7bf | Kostas Papadimitriou | if (this.interval > this.maximum_interval) { |
478 | aeadb7bf | Kostas Papadimitriou | this.interval = this.maximum_interval; |
479 | aeadb7bf | Kostas Papadimitriou | } |
480 | aeadb7bf | Kostas Papadimitriou | |
481 | aeadb7bf | Kostas Papadimitriou | this.setInterval(do_call);
|
482 | aeadb7bf | Kostas Papadimitriou | } |
483 | aeadb7bf | Kostas Papadimitriou | |
484 | aeadb7bf | Kostas Papadimitriou | // reset internal
|
485 | 35855ff5 | Kostas Papadimitriou | this.setInterval = function(do_call) { |
486 | 8d08f18a | Kostas Papadimitriou | this.trigger("clear"); |
487 | b1e6a2de | Kostas Papadimitriou | |
488 | aeadb7bf | Kostas Papadimitriou | // reset times called
|
489 | aeadb7bf | Kostas Papadimitriou | this._called = 0; |
490 | aeadb7bf | Kostas Papadimitriou | |
491 | aeadb7bf | Kostas Papadimitriou | window.clearInterval(this.window_interval);
|
492 | 258235f4 | Kostas Papadimitriou | this.window_interval = window.setInterval(_.bind(this._cb, this), this.interval); |
493 | aeadb7bf | Kostas Papadimitriou | |
494 | edd1d565 | Kostas Papadimitriou | this.running = true; |
495 | b1e6a2de | Kostas Papadimitriou | |
496 | aeadb7bf | Kostas Papadimitriou | // if no do_call set, fallback to object creation option
|
497 | aeadb7bf | Kostas Papadimitriou | // else force what was requested
|
498 | aeadb7bf | Kostas Papadimitriou | var call = do_call === undefined ? this.call_on_start : do_call; |
499 | b1e6a2de | Kostas Papadimitriou | |
500 | aeadb7bf | Kostas Papadimitriou | if (this.last_call && do_call !== false) { |
501 | aeadb7bf | Kostas Papadimitriou | var next_call = (this.interval - ((new Date) - this.last_call)); |
502 | aeadb7bf | Kostas Papadimitriou | if (next_call < this.interval/2) { |
503 | b1e6a2de | Kostas Papadimitriou | call = true;
|
504 | b1e6a2de | Kostas Papadimitriou | } else {
|
505 | b1e6a2de | Kostas Papadimitriou | call = false;
|
506 | b1e6a2de | Kostas Papadimitriou | } |
507 | b1e6a2de | Kostas Papadimitriou | } |
508 | aeadb7bf | Kostas Papadimitriou | |
509 | b1e6a2de | Kostas Papadimitriou | if (call) {
|
510 | 258235f4 | Kostas Papadimitriou | this._cb();
|
511 | 8d08f18a | Kostas Papadimitriou | } |
512 | aeadb7bf | Kostas Papadimitriou | |
513 | b1e6a2de | Kostas Papadimitriou | return this; |
514 | 8d08f18a | Kostas Papadimitriou | } |
515 | 8d08f18a | Kostas Papadimitriou | |
516 | 2c9bfad1 | Kostas Papadimitriou | this.start = function (call_on_start) { |
517 | b1e6a2de | Kostas Papadimitriou | if (this.running) { this.stop() }; |
518 | aeadb7bf | Kostas Papadimitriou | this.setInterval(call_on_start);
|
519 | b1e6a2de | Kostas Papadimitriou | return this; |
520 | 8d08f18a | Kostas Papadimitriou | } |
521 | 8d08f18a | Kostas Papadimitriou | |
522 | 8d08f18a | Kostas Papadimitriou | this.stop = function() { |
523 | 8d08f18a | Kostas Papadimitriou | this.trigger("clear"); |
524 | aeadb7bf | Kostas Papadimitriou | window.clearInterval(this.window_interval);
|
525 | edd1d565 | Kostas Papadimitriou | this.running = false; |
526 | b1e6a2de | Kostas Papadimitriou | return this; |
527 | 8d08f18a | Kostas Papadimitriou | } |
528 | 8d08f18a | Kostas Papadimitriou | } |
529 | 8d08f18a | Kostas Papadimitriou | |
530 | 9ce969a7 | Kostas Papadimitriou | // api error state
|
531 | 8d08f18a | Kostas Papadimitriou | api.stop_calls = false;
|
532 | 9ce969a7 | Kostas Papadimitriou | api.STATES = { NORMAL:1, WARN:0, ERROR:-1 }; |
533 | 9ce969a7 | Kostas Papadimitriou | api.error_state = api.STATES.NORMAL; |
534 | 9ce969a7 | Kostas Papadimitriou | |
535 | 9ce969a7 | Kostas Papadimitriou | // on api error update the api error_state
|
536 | 9ce969a7 | Kostas Papadimitriou | api.bind("error", function() { |
537 | 9ffd10ce | Kostas Papadimitriou | if (snf.api.error_state == snf.api.STATES.ERROR) { return }; |
538 | 9ffd10ce | Kostas Papadimitriou | |
539 | 9ce969a7 | Kostas Papadimitriou | var args = _.toArray(_.toArray(arguments)[0]); |
540 | 9ce969a7 | Kostas Papadimitriou | var params = _.last(args);
|
541 | 9ce969a7 | Kostas Papadimitriou | |
542 | 9ce969a7 | Kostas Papadimitriou | if (params.critical) {
|
543 | 9ce969a7 | Kostas Papadimitriou | snf.api.error_state = api.STATES.ERROR; |
544 | 9ce969a7 | Kostas Papadimitriou | snf.api.stop_calls = true;
|
545 | 9ce969a7 | Kostas Papadimitriou | } else {
|
546 | 9ffd10ce | Kostas Papadimitriou | snf.api.error_state = api.STATES.ERROR; |
547 | 9ce969a7 | Kostas Papadimitriou | } |
548 | 9ce969a7 | Kostas Papadimitriou | snf.api.trigger("change:error_state", snf.api.error_state);
|
549 | 9ce969a7 | Kostas Papadimitriou | }); |
550 | 9ce969a7 | Kostas Papadimitriou | |
551 | 9ce969a7 | Kostas Papadimitriou | // reset api error state
|
552 | 9ce969a7 | Kostas Papadimitriou | api.bind("reset", function() { |
553 | 9ce969a7 | Kostas Papadimitriou | snf.api.error_state = api.STATES.NORMAL; |
554 | 9ce969a7 | Kostas Papadimitriou | snf.api.stop_calls = false;
|
555 | 9ce969a7 | Kostas Papadimitriou | snf.api.trigger("change:error_state", snf.api.error_state);
|
556 | 9ce969a7 | Kostas Papadimitriou | }) |
557 | 8d08f18a | Kostas Papadimitriou | |
558 | 8d08f18a | Kostas Papadimitriou | // make it eventable
|
559 | 8d08f18a | Kostas Papadimitriou | _.extend(api.updateHandler.prototype, bb.Events); |
560 | 8d08f18a | Kostas Papadimitriou | |
561 | 8d08f18a | Kostas Papadimitriou | })(this); |