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/*
* 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.
*/
package com.networknt.schema;
import com.fasterxml.jackson.databind.JsonNode;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.util.*;
/**
* {@link JsonValidator} for dependencies.
*/
public class DependenciesValidator extends BaseJsonValidator implements JsonValidator {
private static final Logger logger = LoggerFactory.getLogger(DependenciesValidator.class);
private final Map<String, List<String>> propertyDeps = new HashMap<String, List<String>>();
private final Map<String, JsonSchema> schemaDeps = new HashMap<String, JsonSchema>();
/**
* Constructor.
*
* @param schemaLocation the schema location
* @param evaluationPath the evaluation path
* @param schemaNode the schema node
* @param parentSchema the parent schema
* @param validationContext the validation context
*/
public DependenciesValidator(SchemaLocation schemaLocation, JsonNodePath evaluationPath, JsonNode schemaNode, JsonSchema parentSchema, ValidationContext validationContext) {
super(schemaLocation, evaluationPath, schemaNode, parentSchema, ValidatorTypeCode.DEPENDENCIES, validationContext);
for (Iterator<String> it = schemaNode.fieldNames(); it.hasNext(); ) {
String pname = it.next();
JsonNode pvalue = schemaNode.get(pname);
if (pvalue.isArray()) {
List<String> depsProps = propertyDeps.get(pname);
if (depsProps == null) {
depsProps = new ArrayList<>();
propertyDeps.put(pname, depsProps);
}
for (int i = 0; i < pvalue.size(); i++) {
depsProps.add(pvalue.get(i).asText());
}
} else if (pvalue.isObject() || pvalue.isBoolean()) {
schemaDeps.put(pname, validationContext.newSchema(schemaLocation.append(pname),
evaluationPath.append(pname), pvalue, parentSchema));
}
}
}
public Set<ValidationMessage> validate(ExecutionContext executionContext, JsonNode node, JsonNode rootNode, JsonNodePath instanceLocation) {
debug(logger, node, rootNode, instanceLocation);
Set<ValidationMessage> errors = null;
for (Iterator<String> it = node.fieldNames(); it.hasNext(); ) {
String pname = it.next();
List<String> deps = propertyDeps.get(pname);
if (deps != null && !deps.isEmpty()) {
for (String field : deps) {
if (node.get(field) == null) {
if (errors == null) {
errors = new LinkedHashSet<>();
}
errors.add(message().instanceNode(node).property(pname).instanceLocation(instanceLocation)
.locale(executionContext.getExecutionConfig().getLocale())
.failFast(executionContext.isFailFast())
.arguments(propertyDeps.toString()).build());
}
}
}
JsonSchema schema = schemaDeps.get(pname);
if (schema != null) {
Set<ValidationMessage> schemaDepsErrors = schema.validate(executionContext, node, rootNode, instanceLocation);
if (!schemaDepsErrors.isEmpty()) {
if (errors == null) {
errors = new LinkedHashSet<>();
}
errors.addAll(schemaDepsErrors);
}
}
}
return errors == null || errors.isEmpty() ? Collections.emptySet() : Collections.unmodifiableSet(errors);
}
@Override
public void preloadJsonSchema() {
preloadJsonSchemas(schemaDeps.values());
}
}
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