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ret.js
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ret.js
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"use strict";
var inherits = require('util').inherits;
var valid = require('valid');
var Handler = require('./core/handler');
var Result = require('./result');
var validators = valid.validators;
var any = validators.any;
var isNull = validators.isNull;
var str = validators.str;
var Ret = function (dataSpec) {
Handler.call(this);
this.resultHandler = this.createResultHandler(dataSpec);
this.impl = null;
this.implIsSync = false;
};
inherits(Ret, Handler);
Ret.prototype.name = 'Ret';
Ret.prototype.createResultHandler = function (dataSpec) {
return new Result(dataSpec);
};
Ret.prototype.setImpl = function (impl, isSync) {
if (this.impl == null) {
this.impl = impl;
this.implIsSync = isSync;
}
else {
throw new Error('Impl is already set');
}
};
Ret.prototype.handlerSetup = function (handlerContainer) {
if (handlerContainer != null && handlerContainer.info != null) {
var info = handlerContainer.info;
if (info.core != null && info.core.ret != null) {
throw new Error('Multiple Ret within handler container');
}
else {
info.core = info.core || {};
info.core.ret = this;
}
}
return this;
};
Ret.prototype.handleRequest = function (ctx) {
ctx.enter([this.resultHandler]);
if (this.impl == null) {
ctx.result(null);
}
else if (this.implIsSync) {
var err = null;
var result = null;
try {
result = this.impl(ctx);
}
catch (implErr) {
err = implErr;
}
if (err) {
ctx.error(err);
} else {
ctx.result(result);
}
}
else {
this.impl(ctx);
}
};
Ret.prototype.handleError = function (ctx) {
ctx.enter([this.resultHandler]);
ctx.next();
};
Ret.ret = function (dataSpec) {
return new Ret(dataSpec);
};
Object.defineProperties(Ret.ret, {
any: {
get: function () {
return Ret.ret(any);
}
},
none: {
get: function () {
return Ret.ret(isNull);
}
},
str: {
get: function () {
return Ret.ret(str);
}
}
});
module.exports = Ret;