org.junitpioneer.jupiter.json.JacksonJsonConverter Maven / Gradle / Ivy
/*
* Copyright 2016-2022 the original author or authors.
*
* All rights reserved. This program and the accompanying materials are
* made available under the terms of the Eclipse Public License v2.0 which
* accompanies this distribution and is available at
*
* http://www.eclipse.org/legal/epl-v20.html
*/
package org.junitpioneer.jupiter.json;
import java.io.IOException;
import java.io.InputStream;
import java.io.UncheckedIOException;
import com.fasterxml.jackson.core.JsonParser;
import com.fasterxml.jackson.databind.JsonNode;
import com.fasterxml.jackson.databind.ObjectMapper;
/**
* A {@link JsonConverter} using Jackson 2 {@link ObjectMapper} to perform the conversion
*/
class JacksonJsonConverter implements JsonConverter {
private static final JacksonJsonConverter INSTANCE = new JacksonJsonConverter(new ObjectMapper());
private final ObjectMapper objectMapper;
private final ObjectMapper lenientObjectMapper;
JacksonJsonConverter(ObjectMapper objectMapper) {
this.objectMapper = objectMapper;
this.lenientObjectMapper = this.objectMapper.copy();
this.lenientObjectMapper.configure(JsonParser.Feature.ALLOW_UNQUOTED_FIELD_NAMES, true);
this.lenientObjectMapper.configure(JsonParser.Feature.ALLOW_COMMENTS, true);
this.lenientObjectMapper.configure(JsonParser.Feature.ALLOW_SINGLE_QUOTES, true);
}
@Override
public Node toNode(InputStream stream) {
try {
JsonNode jsonNode = objectMapper.readTree(stream);
return new JacksonNode(objectMapper, jsonNode);
}
catch (IOException e) {
throw new UncheckedIOException("Failed to read stream", e);
}
}
@Override
public Node toNode(String value, boolean lenient) {
try {
JsonNode jsonNode = getObjectMapper(lenient).readTree(value);
return new JacksonNode(getObjectMapper(false), jsonNode);
}
catch (IOException e) {
throw new UncheckedIOException("Failed to read value", e);
}
}
private ObjectMapper getObjectMapper(boolean lenient) {
return lenient ? lenientObjectMapper : objectMapper;
}
static JacksonJsonConverter getConverter() {
return INSTANCE;
}
}