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/*******************************************************************************
* Copyright (c) 2017 Politecnico di Torino and others.
*
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Apache License, Version 2.0
* which accompanies this distribution, and is available at
* http://www.apache.org/licenses/LICENSE-2.0
*******************************************************************************/
package it.polito.escape.verify.service;
import java.io.File;
import java.io.IOException;
import java.net.URL;
import com.fasterxml.jackson.databind.JsonNode;
import com.fasterxml.jackson.databind.node.ObjectNode;
import com.github.fge.jackson.JsonLoader;
import com.github.fge.jsonschema.core.exceptions.ProcessingException;
import com.github.fge.jsonschema.core.report.ProcessingMessage;
import com.github.fge.jsonschema.core.report.ProcessingReport;
import com.github.fge.jsonschema.main.JsonSchema;
import com.github.fge.jsonschema.main.JsonSchemaFactory;
public class ValidationUtils {
public static final String JSON_V4_SCHEMA_IDENTIFIER = "http://json-schema.org/draft-04/schema#";
public static final String JSON_SCHEMA_IDENTIFIER_ELEMENT = "$schema";
public static JsonNode getJsonNode(String jsonText) throws IOException {
return JsonLoader.fromString(jsonText);
} // getJsonNode(text) ends
public static JsonNode getJsonNode(File jsonFile) throws IOException {
return JsonLoader.fromFile(jsonFile);
} // getJsonNode(File) ends
public static JsonNode getJsonNode(URL url) throws IOException {
return JsonLoader.fromURL(url);
} // getJsonNode(URL) ends
public static JsonNode getJsonNodeFromResource(String resource) throws IOException {
return JsonLoader.fromResource(resource);
} // getJsonNode(Resource) ends
public static JsonSchema getSchemaNode(String schemaText) throws IOException, ProcessingException {
final JsonNode schemaNode = getJsonNode(schemaText);
return _getSchemaNode(schemaNode);
} // getSchemaNode(text) ends
public static JsonSchema getSchemaNode(File schemaFile) throws IOException, ProcessingException {
final JsonNode schemaNode = getJsonNode(schemaFile);
return _getSchemaNode(schemaNode);
} // getSchemaNode(File) ends
public static JsonSchema getSchemaNode(URL schemaFile) throws IOException, ProcessingException {
final JsonNode schemaNode = getJsonNode(schemaFile);
return _getSchemaNode(schemaNode);
} // getSchemaNode(URL) ends
public static JsonSchema getSchemaNodeFromResource(String resource) throws IOException, ProcessingException {
final JsonNode schemaNode = getJsonNodeFromResource(resource);
return _getSchemaNode(schemaNode);
} // getSchemaNode() ends
public static void validateJson(JsonSchema jsonSchemaNode, JsonNode jsonNode) throws ProcessingException {
ProcessingReport report = jsonSchemaNode.validate(jsonNode);
if (!report.isSuccess()) {
for (ProcessingMessage processingMessage : report) {
throw new ProcessingException(processingMessage);
}
}
} // validateJson(Node) ends
public static boolean isJsonValid(JsonSchema jsonSchemaNode, JsonNode jsonNode) throws ProcessingException {
ProcessingReport report = jsonSchemaNode.validate(jsonNode);
return report.isSuccess();
} // validateJson(Node) ends
public static boolean isJsonValid(String schemaText, String jsonText) throws ProcessingException, IOException {
final JsonSchema schemaNode = getSchemaNode(schemaText);
final JsonNode jsonNode = getJsonNode(jsonText);
return isJsonValid(schemaNode, jsonNode);
} // validateJson(Node) ends
public static boolean isJsonValid(File schemaFile, File jsonFile) throws ProcessingException, IOException {
final JsonSchema schemaNode = getSchemaNode(schemaFile);
final JsonNode jsonNode = getJsonNode(jsonFile);
return isJsonValid(schemaNode, jsonNode);
} // validateJson(Node) ends
public static boolean isJsonValid(URL schemaURL, URL jsonURL) throws ProcessingException, IOException {
final JsonSchema schemaNode = getSchemaNode(schemaURL);
final JsonNode jsonNode = getJsonNode(jsonURL);
return isJsonValid(schemaNode, jsonNode);
} // validateJson(Node) ends
public static void validateJson(String schemaText, String jsonText) throws IOException, ProcessingException {
final JsonSchema schemaNode = getSchemaNode(schemaText);
final JsonNode jsonNode = getJsonNode(jsonText);
validateJson(schemaNode, jsonNode);
} // validateJson(text) ends
public static void validateJson(File schemaFile, File jsonFile) throws IOException, ProcessingException {
final JsonSchema schemaNode = getSchemaNode(schemaFile);
final JsonNode jsonNode = getJsonNode(jsonFile);
validateJson(schemaNode, jsonNode);
} // validateJson(File) ends
public static void validateJson(URL schemaDocument, URL jsonDocument) throws IOException, ProcessingException {
final JsonSchema schemaNode = getSchemaNode(schemaDocument);
final JsonNode jsonNode = getJsonNode(jsonDocument);
validateJson(schemaNode, jsonNode);
} // validateJson(URL) ends
public static void validateJsonResource(String schemaResource, String jsonResource) throws IOException,
ProcessingException {
final JsonSchema schemaNode = getSchemaNode(schemaResource);
final JsonNode jsonNode = getJsonNodeFromResource(jsonResource);
validateJson(schemaNode, jsonNode);
} // validateJsonResource() ends
private static JsonSchema _getSchemaNode(JsonNode jsonNode) throws ProcessingException {
final JsonNode schemaIdentifier = jsonNode.get(JSON_SCHEMA_IDENTIFIER_ELEMENT);
if (null == schemaIdentifier) {
((ObjectNode) jsonNode).put(JSON_SCHEMA_IDENTIFIER_ELEMENT, JSON_V4_SCHEMA_IDENTIFIER);
}
final JsonSchemaFactory factory = JsonSchemaFactory.byDefault();
return factory.getJsonSchema(jsonNode);
} // _getSchemaNode() ends
}
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