2 // ============LICENSE_START====================================================
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3 // Copyright (c) 2018 AT&T Intellectual Property. All rights reserved.
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4 // =============================================================================
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5 // Licensed under the Apache License, Version 2.0 (the "License");
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6 // you may not use this file except in compliance with the License.
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7 // You may obtain a copy of the License at
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9 // http://www.apache.org/licenses/LICENSE-2.0
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11 // Unless required by applicable law or agreed to in writing, software
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12 // distributed under the License is distributed on an "AS IS" BASIS,
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13 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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14 // See the License for the specific language governing permissions and
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15 // limitations under the License.
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16 // ============LICENSE_END======================================================
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18 // ECOMP is a trademark and service mark of AT&T Intellectual Property.
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19 import { Injectable } from '@angular/core';
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20 import {MetaSchemaService} from './metaschema.service';
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21 import {ValidateJSONService} from './validate-json.service';
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22 import * as Ajv from 'ajv';
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25 export class ValidateMetaSchemaService {
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28 private schemaValidate: any;
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29 private metaSchema: MetaSchemaService;
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30 private jsonValidate: ValidateJSONService;
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31 private lastErrors:string[] = [];
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33 constructor(metaSchemaService: MetaSchemaService, jsonValidateService: ValidateJSONService) {
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34 this.metaSchema = metaSchemaService;
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35 this.jsonValidate = jsonValidateService;
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38 validate(schema: string): boolean {
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40 if (this.jsonValidate.validate(schema) === false) {
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41 // assumes simple message - TBD???
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42 this.lastErrors[0] = this.jsonValidate.validateMsgs();
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45 // Schema is assumed to be V4 for now (jsonschema does not support V6 yet so we must wait since this is used by the CLI)
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47 this.ajv = new Ajv({
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48 meta: false, // optional, to prevent adding draft-06 meta-schema
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49 extendRefs: true, // optional, current default is to 'fail', spec behaviour is to 'ignore'
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51 unknownFormats: 'ignore' // optional, current default is true (fail)
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53 // change this to http get at some point TBD
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54 const schemav4: any = { 'id': 'http://json-schema.org/draft-04/schema#', '$schema': 'http://json-schema.org/draft-04/schema#', 'description': 'Core schema meta-schema', 'definitions': { 'schemaArray': { 'type': 'array', 'minItems': 1, 'items': { '$ref': '#' } }, 'positiveInteger': { 'type': 'integer', 'minimum': 0 }, 'positiveIntegerDefault0': { 'allOf': [ { '$ref': '#/definitions/positiveInteger' }, { 'default': 0 } ] }, 'simpleTypes': { 'enum': [ 'array', 'boolean', 'integer', 'null', 'number', 'object', 'string' ] }, 'stringArray': { 'type': 'array', 'items': { 'type': 'string' }, 'minItems': 1, 'uniqueItems': true } }, 'type': 'object', 'properties': { 'id': { 'type': 'string', 'format': 'uri' }, '$schema': { 'type': 'string', 'format': 'uri' }, 'title': { 'type': 'string' }, 'description': { 'type': 'string' }, 'default': {}, 'multipleOf': { 'type': 'number', 'minimum': 0, 'exclusiveMinimum': true }, 'maximum': { 'type': 'number' }, 'exclusiveMaximum': { 'type': 'boolean', 'default': false }, 'minimum': { 'type': 'number' }, 'exclusiveMinimum': { 'type': 'boolean', 'default': false }, 'maxLength': { '$ref': '#/definitions/positiveInteger' }, 'minLength': { '$ref': '#/definitions/positiveIntegerDefault0' }, 'pattern': { 'type': 'string', 'format': 'regex' }, 'additionalItems': { 'anyOf': [ { 'type': 'boolean' }, { '$ref': '#' } ], 'default': {} }, 'items': { 'anyOf': [ { '$ref': '#' }, { '$ref': '#/definitions/schemaArray' } ], 'default': {} }, 'maxItems': { '$ref': '#/definitions/positiveInteger' }, 'minItems': { '$ref': '#/definitions/positiveIntegerDefault0' }, 'uniqueItems': { 'type': 'boolean', 'default': false }, 'maxProperties': { '$ref': '#/definitions/positiveInteger' }, 'minProperties': { '$ref': '#/definitions/positiveIntegerDefault0' }, 'required': { '$ref': '#/definitions/stringArray' }, 'additionalProperties': { 'anyOf': [ { 'type': 'boolean' }, { '$ref': '#' } ], 'default': {} }, 'definitions': { 'type': 'object', 'additionalProperties': { '$ref': '#' }, 'default': {} }, 'properties': { 'type': 'object', 'additionalProperties': { '$ref': '#' }, 'default': {} }, 'patternProperties': { 'type': 'object', 'additionalProperties': { '$ref': '#' }, 'default': {} }, 'dependencies': { 'type': 'object', 'additionalProperties': { 'anyOf': [ { '$ref': '#' }, { '$ref': '#/definitions/stringArray' } ] } }, 'enum': { 'type': 'array', 'minItems': 1, 'uniqueItems': true }, 'type': { 'anyOf': [ { '$ref': '#/definitions/simpleTypes' }, { 'type': 'array', 'items': { '$ref': '#/definitions/simpleTypes' }, 'minItems': 1, 'uniqueItems': true } ] }, 'allOf': { '$ref': '#/definitions/schemaArray' }, 'anyOf': { '$ref': '#/definitions/schemaArray' }, 'oneOf': { '$ref': '#/definitions/schemaArray' }, 'not': { '$ref': '#' } }, 'dependencies': { 'exclusiveMaximum': [ 'maximum' ], 'exclusiveMinimum': [ 'minimum' ] }, 'default': {}}
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56 const metaSchema = schemav4;
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58 this.ajv.addMetaSchema(metaSchema);
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59 this.ajv._opts.defaultMeta = metaSchema.id;
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61 // Optionally you can also disable keywords defined in draft-06
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62 this.ajv.removeKeyword('propertyNames');
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63 this.ajv.removeKeyword('contains');
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64 this.ajv.removeKeyword('const');
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66 const sValidate = this.ajv.compile(this.metaSchema.currentMetaSchema());
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67 const result = sValidate(JSON.parse(schema));
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69 if (result === false) {
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70 for ( const errMsg of Object.keys(sValidate.errors)) {
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71 let msg = sValidate.errors[errMsg].message;
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72 if (sValidate.errors[errMsg].hasOwnProperty('params')) {
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73 if (sValidate.errors[errMsg].params.hasOwnProperty('additionalProperty')) {
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75 msg = msg + sValidate.errors[errMsg].params.additionalProperty;
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79 for (const k in this.lastErrors) {
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80 if ( this.lastErrors[k] === msg) {
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84 if (dupMsg === false) {
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85 this.lastErrors[j] = msg;
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92 this.lastErrors[0] = ajvError;
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96 validateMsgs(): string[] {
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97 return this.lastErrors;
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