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const _ = require("lodash");
const AnnotationTarget = require("../annotations/AnnotationTarget");
const Parameter = require("./Parameter");
const ReturnType = require("./ReturnType");
/**
* Action - service-defined operation.
*
* http://docs.oasis-open.org/odata/odata-csdl-xml/v4.01/cs01/odata-csdl-xml-v4.01-cs01.html#sec_Action
*
* @class Action
* @extends {AnnotationTarget}
*/
class Action extends AnnotationTarget {
/**
* Creates an instance of Action
* @param {Object} rawMetadata raw metadata object for an action
* @memberof Action
*/
constructor(rawMetadata) {
super(rawMetadata);
if (_.isArray(rawMetadata.ReturnType)) {
let returnType = new ReturnType(rawMetadata.ReturnType[0]);
Object.defineProperty(this, "returnType", {
get: () => returnType,
});
}
let parameters = (rawMetadata.Parameter || []).map(
(md) => new Parameter(md)
);
Object.defineProperty(this, "parameters", {
get: () => parameters,
});
Object.defineProperty(this, "isBound", {
get: () => rawMetadata.$.IsBound === "true",
});
Object.defineProperty(this, "entitySetPath", {
get: () => rawMetadata.$.EntitySetPath,
});
Object.defineProperty(this, "entityTypePath", {
get: () => {
const entitySetPath = _.has(rawMetadata, "$.EntitySetPath")
? rawMetadata.$.EntitySetPath
: Action.DEFAULT_ENTITY_SET_PATH;
let parameterWithType = _.filter(
rawMetadata.Parameter,
(parameter) => parameter.$.Name === entitySetPath
);
return _.get(parameterWithType, "0.$.Type");
},
});
Object.defineProperty(this, "entityType", {
get: () => {
let matchCollection;
let entityType = this.entityTypePath;
if (_.isString(entityType)) {
matchCollection = entityType.match(Action.COLLECTION_TYPE_REGEXP);
}
return matchCollection ? matchCollection[1] : entityType;
},
});
this._checkConsistency();
}
/**
* Initializes schema dependent properties. Decoupled from constructor,
* because it needs to resolve schema (type) references.
*
* @param {CsdlSchema} schema to resolve references
* @returns {Action} this to allow methods chaining
* @memberof Action
*/
initSchemaDependentProperties(schema) {
if (_.has(this, "returnType")) {
this.returnType.initSchemaDependentProperties(schema);
}
this.parameters.forEach((p) => p.initSchemaDependentProperties(schema));
return this;
}
/**
* Checks properties consistency, i.e. mandatory properties, return type.
*
* @memberof Action
*/
_checkConsistency() {
if (!this.name) {
throw new Error("Name attribute is mandatory for action.");
}
if (_.isArray(this.raw.ReturnType) && this.raw.ReturnType.length !== 1) {
throw new Error(
`Function ${this.name} may contain at most one ReturnType element`
);
}
}
/**
* Resolves model path within this type.
*
* @returns {Object} itself
* @memberof Function
*/
resolveModelPath() {
return this;
}
}
Action.DEFAULT_ENTITY_SET_PATH = "_it";
Action.COLLECTION_TYPE_REGEXP = /^Collection\(([^)]+)\)$/;
module.exports = Action;
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