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Adds support for $recursiveAnchor and $recursiveRef (#835)
* Adds support for $recursiveAnchor and $recursiveRef Resolves #507 * Updates documentation on compliance with the standards. --------- Co-authored-by: Faron Dutton <[email protected]>
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104 changes: 104 additions & 0 deletions
104
src/main/java/com/networknt/schema/RecursiveRefValidator.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,104 @@ | ||
| /* | ||
| * Copyright (c) 2016 Network New Technologies Inc. | ||
| * | ||
| * Licensed under the Apache License, Version 2.0 (the "License"); | ||
| * you may not use this file except in compliance with the License. | ||
| * You may obtain a copy of the License at | ||
| * | ||
| * http://www.apache.org/licenses/LICENSE-2.0 | ||
| * | ||
| * Unless required by applicable law or agreed to in writing, software | ||
| * distributed under the License is distributed on an "AS IS" BASIS, | ||
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| * See the License for the specific language governing permissions and | ||
| * limitations under the License. | ||
| */ | ||
|
|
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| package com.networknt.schema; | ||
|
|
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| import com.fasterxml.jackson.databind.JsonNode; | ||
| import com.networknt.schema.CollectorContext.Scope; | ||
| import org.slf4j.Logger; | ||
| import org.slf4j.LoggerFactory; | ||
|
|
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| import java.text.MessageFormat; | ||
| import java.util.*; | ||
|
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| public class RecursiveRefValidator extends BaseJsonValidator { | ||
| private static final Logger logger = LoggerFactory.getLogger(RecursiveRefValidator.class); | ||
|
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| public RecursiveRefValidator(String schemaPath, JsonNode schemaNode, JsonSchema parentSchema, ValidationContext validationContext) { | ||
| super(schemaPath, schemaNode, parentSchema, ValidatorTypeCode.RECURSIVE_REF, validationContext); | ||
|
|
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| String refValue = schemaNode.asText(); | ||
| if (!"#".equals(refValue)) { | ||
| throw new JsonSchemaException( | ||
| ValidationMessage.of( | ||
| ValidatorTypeCode.RECURSIVE_REF.getValue(), | ||
| CustomErrorMessageType.of("internal.invalidRecursiveRef"), | ||
| new MessageFormat("{0}: The value of a $recursiveRef must be '#' but is '{1}'"), | ||
| schemaPath, schemaPath, refValue | ||
| ) | ||
| ); | ||
| } | ||
| } | ||
|
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| @Override | ||
| public Set<ValidationMessage> validate(JsonNode node, JsonNode rootNode, String at) { | ||
| CollectorContext collectorContext = CollectorContext.getInstance(); | ||
|
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| Set<ValidationMessage> errors = new HashSet<>(); | ||
|
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| Scope parentScope = collectorContext.enterDynamicScope(); | ||
| try { | ||
| debug(logger, node, rootNode, at); | ||
|
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| JsonSchema schema = collectorContext.getOutermostSchema(); | ||
| if (null != schema) { | ||
| // This is important because if we use same JsonSchemaFactory for creating multiple JSONSchema instances, | ||
| // these schemas will be cached along with config. We have to replace the config for cached $ref references | ||
| // with the latest config. Reset the config. | ||
| schema.getValidationContext().setConfig(getParentSchema().getValidationContext().getConfig()); | ||
| errors = schema.validate(node, rootNode, at); | ||
| } | ||
| } finally { | ||
| Scope scope = collectorContext.exitDynamicScope(); | ||
| if (errors.isEmpty()) { | ||
| parentScope.mergeWith(scope); | ||
| } | ||
| } | ||
|
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| return errors; | ||
| } | ||
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| @Override | ||
| public Set<ValidationMessage> walk(JsonNode node, JsonNode rootNode, String at, boolean shouldValidateSchema) { | ||
| CollectorContext collectorContext = CollectorContext.getInstance(); | ||
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| Set<ValidationMessage> errors = new HashSet<>(); | ||
|
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| Scope parentScope = collectorContext.enterDynamicScope(); | ||
| try { | ||
| debug(logger, node, rootNode, at); | ||
|
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| JsonSchema schema = collectorContext.getOutermostSchema(); | ||
| if (null != schema) { | ||
| // This is important because if we use same JsonSchemaFactory for creating multiple JSONSchema instances, | ||
| // these schemas will be cached along with config. We have to replace the config for cached $ref references | ||
| // with the latest config. Reset the config. | ||
| schema.getValidationContext().setConfig(getParentSchema().getValidationContext().getConfig()); | ||
| errors = schema.walk(node, rootNode, at, shouldValidateSchema); | ||
| } | ||
| } finally { | ||
| Scope scope = collectorContext.exitDynamicScope(); | ||
| if (shouldValidateSchema) { | ||
| if (errors.isEmpty()) { | ||
| parentScope.mergeWith(scope); | ||
| } | ||
| } | ||
| } | ||
|
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| return errors; | ||
| } | ||
|
|
||
| } |
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