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| 1 | +/* |
| 2 | + * Copyright (c) 2016 Network New Technologies Inc. |
| 3 | + * |
| 4 | + * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | + * you may not use this file except in compliance with the License. |
| 6 | + * You may obtain a copy of the License at |
| 7 | + * |
| 8 | + * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | + * |
| 10 | + * Unless required by applicable law or agreed to in writing, software |
| 11 | + * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | + * See the License for the specific language governing permissions and |
| 14 | + * limitations under the License. |
| 15 | + */ |
| 16 | + |
| 17 | +package com.networknt.schema; |
| 18 | + |
| 19 | +import com.fasterxml.jackson.databind.JsonNode; |
| 20 | +import com.networknt.schema.CollectorContext.Scope; |
| 21 | +import org.slf4j.Logger; |
| 22 | +import org.slf4j.LoggerFactory; |
| 23 | + |
| 24 | +import java.text.MessageFormat; |
| 25 | +import java.util.*; |
| 26 | + |
| 27 | +public class RecursiveRefValidator extends BaseJsonValidator { |
| 28 | + private static final Logger logger = LoggerFactory.getLogger(RecursiveRefValidator.class); |
| 29 | + |
| 30 | + public RecursiveRefValidator(String schemaPath, JsonNode schemaNode, JsonSchema parentSchema, ValidationContext validationContext) { |
| 31 | + super(schemaPath, schemaNode, parentSchema, ValidatorTypeCode.RECURSIVE_REF, validationContext); |
| 32 | + |
| 33 | + String refValue = schemaNode.asText(); |
| 34 | + if (!"#".equals(refValue)) { |
| 35 | + throw new JsonSchemaException( |
| 36 | + ValidationMessage.of( |
| 37 | + ValidatorTypeCode.RECURSIVE_REF.getValue(), |
| 38 | + CustomErrorMessageType.of("internal.invalidRecursiveRef"), |
| 39 | + new MessageFormat("{0}: The value of a $recursiveRef must be '#' but is '{1}'"), |
| 40 | + schemaPath, schemaPath, refValue |
| 41 | + ) |
| 42 | + ); |
| 43 | + } |
| 44 | + } |
| 45 | + |
| 46 | + @Override |
| 47 | + public Set<ValidationMessage> validate(JsonNode node, JsonNode rootNode, String at) { |
| 48 | + CollectorContext collectorContext = CollectorContext.getInstance(); |
| 49 | + |
| 50 | + Set<ValidationMessage> errors = new HashSet<>(); |
| 51 | + |
| 52 | + Scope parentScope = collectorContext.enterDynamicScope(); |
| 53 | + try { |
| 54 | + debug(logger, node, rootNode, at); |
| 55 | + |
| 56 | + JsonSchema schema = collectorContext.getOutermostSchema(); |
| 57 | + if (null != schema) { |
| 58 | + // This is important because if we use same JsonSchemaFactory for creating multiple JSONSchema instances, |
| 59 | + // these schemas will be cached along with config. We have to replace the config for cached $ref references |
| 60 | + // with the latest config. Reset the config. |
| 61 | + schema.getValidationContext().setConfig(getParentSchema().getValidationContext().getConfig()); |
| 62 | + errors = schema.validate(node, rootNode, at); |
| 63 | + } |
| 64 | + } finally { |
| 65 | + Scope scope = collectorContext.exitDynamicScope(); |
| 66 | + if (errors.isEmpty()) { |
| 67 | + parentScope.mergeWith(scope); |
| 68 | + } |
| 69 | + } |
| 70 | + |
| 71 | + return errors; |
| 72 | + } |
| 73 | + |
| 74 | + @Override |
| 75 | + public Set<ValidationMessage> walk(JsonNode node, JsonNode rootNode, String at, boolean shouldValidateSchema) { |
| 76 | + CollectorContext collectorContext = CollectorContext.getInstance(); |
| 77 | + |
| 78 | + Set<ValidationMessage> errors = new HashSet<>(); |
| 79 | + |
| 80 | + Scope parentScope = collectorContext.enterDynamicScope(); |
| 81 | + try { |
| 82 | + debug(logger, node, rootNode, at); |
| 83 | + |
| 84 | + JsonSchema schema = collectorContext.getOutermostSchema(); |
| 85 | + if (null != schema) { |
| 86 | + // This is important because if we use same JsonSchemaFactory for creating multiple JSONSchema instances, |
| 87 | + // these schemas will be cached along with config. We have to replace the config for cached $ref references |
| 88 | + // with the latest config. Reset the config. |
| 89 | + schema.getValidationContext().setConfig(getParentSchema().getValidationContext().getConfig()); |
| 90 | + errors = schema.walk(node, rootNode, at, shouldValidateSchema); |
| 91 | + } |
| 92 | + } finally { |
| 93 | + Scope scope = collectorContext.exitDynamicScope(); |
| 94 | + if (shouldValidateSchema) { |
| 95 | + if (errors.isEmpty()) { |
| 96 | + parentScope.mergeWith(scope); |
| 97 | + } |
| 98 | + } |
| 99 | + } |
| 100 | + |
| 101 | + return errors; |
| 102 | + } |
| 103 | + |
| 104 | +} |
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