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module.js
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module.js
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var fs = require("fs");
var ModuleInfo = require("./module-info.js");
var ChipManager = require("prometheus-chip-manager");
var Channel = require("prometheus-channel");
var Service = require("prometheus-service");
var DispatcherWrapper = require("prometheus-dispatcher-wrapper");
var ResourceType = require("prometheus-resource-type");
var FieldType = require("prometheus-field-type");
var Module = function(path_to_module){
this.path = path_to_module;
this.registred = false;
this.executed = false;
this.info = new ModuleInfo(path_to_module);
this.id = this.info.id;
this.body = require(path_to_module);
}
var chip_type_startable = {
service: true,
channel: true,
resource_type: false,
field_type: false
}
Module.prototype = new function(){
this.generate_chip_action_method_name = function(chip_name, chip_type, action){
var ret = action + "_" + chip_type + "_" + chip_name;
return ret;
}
this.get_defined_chips_by_type = function(type){
var ret = [];
for(var i in this.info.defines){
if(this.info.defines[i].indexOf(type)==0){
ret.push(this.info.defines[i].split(".")[1]);
}
}
return ret;
}
this.get_required_chips_by_type = function(type){
var ret = [];
for(var i in this.info.requires){
if(this.info.requires[i].indexOf(type)==0){
ret.push(this.info.requires[i].split(".")[1]);
}
}
return ret;
}
this.get_allowed_chips_longids = function(){
var defines = this.info.defines;
var requires = this.info.requires;
return defines.concat(requires);
}
this.prepare_all_channel = function(real_dispatcher){
var channel_ids = this.get_defined_chips_by_type("channel");
//var dependencies = this.getDependencies();
var wrapped_dispatcher = new DispatcherWrapper(real_dispatcher, this.get_allowed_chips_longids());
for(var i in channel_ids){
var id = channel_ids[i];
var channel_object = new Channel(id);
var prepare_function_name = this.generate_chip_action_method_name(channel_ids[i], "channel", "prepare");
if(this.body[prepare_function_name]){
this.body[prepare_function_name](channel_object, wrapped_dispatcher, this.getDependencies());
}
ChipManager.register_channel(channel_object);
}
var required_channel_ids = this.get_required_chips_by_type("channel");
for(var i in required_channel_ids){
var id = required_channel_ids[i];
var channel = ChipManager.get_channel(id);
var prepare_function_name = this.generate_chip_action_method_name(required_channel_ids[i], "channel", "prepare");
if(this.body[prepare_function_name]){
this.body[prepare_function_name](channel, wrapped_dispatcher, this.getDependencies());
}
}
}
this.prepare_all_service = function(){
var service_ids = this.get_defined_chips_by_type("service");
for(var i in service_ids){
var service_id = service_ids[i];
var service_object = new Service(service_id);
var prepare_function_name = this.generate_chip_action_method_name(service_id, "service", "prepare");
if(this.body[prepare_function_name]){
this.body[prepare_function_name](service_object);
}
ChipManager.register_service(service_object);
}
}
this.prepare_all_resource_type = function(){
var resource_type_ids = this.get_defined_chips_by_type("resource_type");
for(var i in resource_type_ids){
var resource_type_id = resource_type_ids[i];
var resource_type_object = new ResourceType(resource_type_id);
var prepare_function_name = this.generate_chip_action_method_name(resource_type_id, "resource_type", "prepare");
if(this.body[prepare_function_name]){
this.body[prepare_function_name](resource_type_object);
}
ChipManager.register_resource_type(resource_type_object);
}
}
this.prepare_all_field_type = function(){
var field_type_ids = this.get_defined_chips_by_type("field_type");
for(var i in field_type_ids){
var field_type_id = field_type_ids[i];
/*
var fieldType_object = Object.create(FieldType.prototype, {
id: {
writable: false,
configurable: false,
value: field_type_id
},
});
*/
var field_type_generator_fn = function(){};
field_type_generator_fn.prototype = Object.create(FieldType.prototype);
field_type_generator_fn.id = field_type_id;
var prepare_function_name = this.generate_chip_action_method_name(field_type_id, "field_type", "prepare");
//console.log("trying to call ", prepare_function_name);
if(this.body[prepare_function_name]){
this.body[prepare_function_name](field_type_generator_fn);
}
ChipManager.register_field_type(field_type_generator_fn);
}
}
this.getDependencies = function(){
var ret = [];
var longids = this.get_allowed_chips_longids();
for(var i in longids){
var longid = longids[i];
var chip = ChipManager.get_chip_by_longid(longid);
ret[longid] = chip;
}
return ret;
}
this.start_all_service = function(){
var service_ids = this.get_defined_chips_by_type("service");
for(var i in service_ids){
var service_id = service_ids[i];
var service = ChipManager.get_service(service_id);
service.start();
}
}
this.start_all_channel = function(){
//run the "start" method of each defined channel
var channel_ids = this.get_defined_chips_by_type("channel");
for(var i in channel_ids){
var channel_id = channel_ids[i];
var channel = ChipManager.get_channel(channel_id);
channel.start();
}
//also postprocess all channels required by this module
var required_channel_ids = this.get_required_chips_by_type("channel");
var dependencies = this.getDependencies();
for(var i in required_channel_ids){
channel_id = required_channel_ids[i];
var postprocess_function_name = this.generate_chip_action_method_name(channel_id, "channel", "postprocess");
var required_channel = ChipManager.get_channel(channel_id);
var postprocess_function = this.body[postprocess_function_name]
if(postprocess_function){
postprocess_function(required_channel, dependencies);
}
}
}
this.prepare = function(chip_types, real_dispatcher){
for(var i in chip_types){
var function_name = "prepare_all_"+chip_types[i];
this[function_name](real_dispatcher);
}
}
this.start = function(chip_types){
for(var i in chip_types){
if(chip_type_startable[chip_types[i]]){
this["start_all_"+chip_types[i]]();
}
}
}
}
module.exports = Module;

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