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params.js
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params.js
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var assert = require('chai').assert;
function get (parameterName) {
if ( ( this._required && this._required.indexOf(parameterName) != -1 )
|| ( this._optional && this._optional.indexOf(parameterName) != -1 ) ) {
return this._parameters[parameterName];
}
}
module.exports = {
check : function (parameters, required, optional) {
if ( ! parameters ) {
parameters = {};
}
else if ( typeof parameters != 'object') {
throw new Error("Parameters object must be an object");
}
var parameterKeys = Object.keys(parameters);
for ( var i = 0 ; i < required.length; i++ ) {
if ( ! ( required[i] in parameters ) ) {
throw new Error("Parameter "+required[i]+" expected and not found");
}
else {
var index = parameterKeys.indexOf(required[i]);
parameterKeys.splice(index, 1);
}
}
for ( var i = 0; i < parameterKeys.length; i++ ) {
if ( optional.indexOf(parameterKeys[i]) == -1 ) {
throw new Error("Parameter "+parameterKeys[i]+" not expected");
}
}
return {
get: get,
_parameters: parameters,
_required: required,
_optional: optional,
};
},
required : function (parameters, required) {
if ( ! parameters ) {
parameters = {};
}
else if ( typeof parameters != 'object') {
throw new Error("Parameters object must be an object");
}
for ( var i = 0 ; i < required.length; i++ ) {
if ( ! ( required[i] in parameters ) ) {
throw new Error("Parameter "+required[i]+" expected and not found");
}
}
return {
get: get,
_parameters: parameters,
_required: required,
};
},
optional : function (parameters, optional) {
if ( ! parameters ) {
parameters = {};
}
else if ( typeof parameters != 'object') {
throw new Error("Parameters object must be an object");
}
var parameterKeys = Object.keys(parameters);
for ( var i = 0; i < parameterKeys.length; i++ ) {
if ( optional.indexOf(parameterKeys[i]) == -1 ) {
throw new Error("Parameter "+parameterKeys[i]+" not expected");
}
}
return {
get: get,
_parameters: parameters,
_optional: optional,
};
}
}