com.predic8.membrane.core.openapi.validators.StringRestrictionValidator Maven / Gradle / Ivy
/*
* Copyright 2022 predic8 GmbH, www.predic8.com
*
* 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.predic8.membrane.core.openapi.validators;
import com.fasterxml.jackson.databind.node.*;
import io.swagger.v3.oas.models.media.*;
import static java.lang.String.*;
public class StringRestrictionValidator {
@SuppressWarnings("rawtypes")
private final Schema schema;
@SuppressWarnings("rawtypes")
public StringRestrictionValidator(Schema schema) {
this.schema = schema;
}
public ValidationErrors validate(ValidationContext ctx, Object value) {
// if value is null there is nothing to validate. Null check is done
// somewhere else.
if (value == null)
return null;
ctx = ctx.schemaType(schema.getType());
if (value instanceof ObjectNode)
return null;
if (value instanceof ArrayNode)
return null;
if (value instanceof IntNode)
return null;
if (value instanceof BooleanNode)
return null;
if (value instanceof DoubleNode)
return null;
if (value instanceof DecimalNode)
return null;
ValidationErrors errors = new ValidationErrors();
String str = getStringValue(value);
if (isMaxlenExceeded(str)) {
errors.add(new ValidationError(ctx.schemaType("string"), format("The string '%s' is %d characters long. MaxLength of %d is exceeded.", str, str.length(), schema.getMaxLength())));
}
if (isMinLenExceeded(str)) {
errors.add(new ValidationError(ctx.schemaType("string"), format("The string '%s' is %d characters long. The length of the string is shorter than the minLength of %d.", str, str.length(), schema.getMinLength())));
}
return errors;
}
private boolean isMinLenExceeded(String str) {
return schema.getMinLength() != null && str.length() < schema.getMinLength();
}
private boolean isMaxlenExceeded(String str) {
return schema.getMaxLength() != null && str.length() > schema.getMaxLength();
}
private String getStringValue(Object value) {
String str = null;
if (value instanceof String) {
str = (String) value;
}
if (value instanceof TextNode) {
str = ((TextNode) value).asText();
}
return str;
}
}