@elastic.io/odata-library/lib/metadata/metadataBuilder.js

Re-usable OData client library

module.exports = class MetadataBuilder {
  constructor(csdlConverter, referenceResolveLevel) {
    this.csdlConverter = csdlConverter;
    this.referenceResolveLevel = referenceResolveLevel;
  }

  getObjectsNamingList() {
    const list = {};
    this.csdlConverter.getResourcesList()
    /* eslint no-return-assign:0 prefer-destructuring:0 */
      .forEach(rs => list[rs.name] = rs.name.match('[a-zA-Z]+$')[0]);
    return list;
  }

  getTriggerMetadata(objectType) {
    const objectDescription = this.csdlConverter.convertCsdlString(objectType);
    return {
      out: this.csdlConverter
        .resolveMetadataRefs(objectDescription.jsonSchema, this.referenceResolveLevel),
    };
  }

  getByIdMetadata(objectType) {
    const objectDescription = this.csdlConverter.convertCsdlString(objectType);
    const jsonSchema = this.csdlConverter
      .resolveMetadataRefs(objectDescription.jsonSchema, this.referenceResolveLevel);
    jsonSchema.properties[objectDescription.keys[0].name].required = true;

    const idMetadata = {
      type: 'object',
      properties: {
        [objectDescription.keys[0].name]: jsonSchema.properties[objectDescription.keys[0].name],
      },
    };

    return {
      in: idMetadata,
      out: jsonSchema,
    };
  }

  getPostMetadata(objectType) {
    const objectDescription = this.csdlConverter.convertCsdlString(objectType);
    const jsonSchema = this.csdlConverter
      .resolveMetadataRefs(objectDescription.jsonSchema, this.referenceResolveLevel);
    const jsonSchemaInput = JSON.parse(JSON.stringify(jsonSchema));
    delete jsonSchemaInput.properties[objectDescription.keys[0].name];
    MetadataBuilder.turnRequiredFalseNonKeyVariables(jsonSchemaInput, objectDescription.keys);
    jsonSchema.properties[objectDescription.keys[0].name].required = true;
    return {
      in: jsonSchemaInput,
      out: jsonSchema,
    };
  }

  getPutMetadata(objectType) {
    const objectDescription = this.csdlConverter.convertCsdlString(objectType);
    const jsonSchema = this.csdlConverter
      .resolveMetadataRefs(objectDescription.jsonSchema, this.referenceResolveLevel);
    const jsonSchemaInput = JSON.parse(JSON.stringify(jsonSchema));
    jsonSchemaInput.properties[objectDescription.keys[0].name].required = true;
    MetadataBuilder.turnRequiredFalseNonKeyVariables(jsonSchemaInput, objectDescription.keys);
    return {
      in: jsonSchemaInput,
      out: jsonSchema,
    };
  }

  getUpsertMetadata(objectType) {
    const objectDescription = this.csdlConverter.convertCsdlString(objectType);
    const jsonSchema = this.csdlConverter
      .resolveMetadataRefs(objectDescription.jsonSchema, this.referenceResolveLevel);
    const jsonSchemaInput = JSON.parse(JSON.stringify(jsonSchema));
    jsonSchemaInput.properties[objectDescription.keys[0].name].required = false;
    MetadataBuilder.turnRequiredFalseNonKeyVariables(jsonSchemaInput, objectDescription.keys);
    return {
      in: jsonSchemaInput,
      out: jsonSchema,
    };
  }

  getDeleteMetadata(objectType) {
    const objectDescription = this.csdlConverter.convertCsdlString(objectType);
    const jsonSchema = this.csdlConverter
      .resolveMetadataRefs(objectDescription.jsonSchema, this.referenceResolveLevel);
    const idMetadata = {
      type: 'object',
      properties: {},
    };
    objectDescription.keys.forEach((key) => {
      idMetadata.properties[key.name] = jsonSchema.properties[key.name];
      idMetadata.properties[key.name].required = true;
    });
    return {
      in: idMetadata,
      out: idMetadata,
    };
  }

  static turnRequiredFalseNonKeyVariables(jsonSchema, keys) {
    const keyList = keys.map(k => k.name);
    Object.keys(jsonSchema.properties).forEach((key) => {
      if (keyList.indexOf(key) === -1) {
        jsonSchema.properties[key].required = false; // eslint-disable-line no-param-reassign
      }
    });
    return jsonSchema;
  }
};