jackson-json-reference

• 
• 

JSON Reference implementation for Java, based on Jackson. Process references in JSON documents, such as in JSON Schema. Aims for but not limited to full spec compliance.

Features

• Supports URLs & files.
• Relative & absolute reference URIs.
• Recursive expansion, with options for max depth and stop on circularity.
• Custom object mappers, allowing Jackson features like JSON comments, YAML, etc.
• Built-in support for YAML based on file extension detection.

Specs

• JSON Reference (extended by JSON Schema)
• JSON Pointer
• JSON Schema (spec)

Usage

File

File file = new File("src/test/resources/nest.json");
JsonNode node = (new JsonReferenceProcessor()).process(file);

URL

URL url = new URL("http://json-schema.org/schema");
JsonNode node = (new JsonReferenceProcessor()).process(url);

Settings

JsonReferenceProcessor processor = new JsonReferenceProcessor();

processor.setStopOnCircular(false); // default true

processor.setMaxDepth(2); // default 1

// Custom object mapper allowing comments.
processor.setMapperFactory(new ObjectMapperFactory() {
   @Override
   public ObjectMapper create(URL url) {
       //ObjectMapper objectMapper = DefaultObjectMapperFactory.instance.create(url);
       ObjectMapper objectMapper = new ObjectMapper();
       objectMapper.configure(JsonParser.Feature.ALLOW_COMMENTS, true);
       return objectMapper;
   }
});

JsonNode node = processor.process( /*...*/ );

Output

ObjectMapper mapper = new ObjectMapper();
mapper.writeValue(new File("out.json"), node);

Install

Maven

<repositories>
    <repository>
        <snapshots>
            <enabled>false</enabled>
        </snapshots>
        <id>bintray-adjohnson916-maven</id>
        <name>bintray-adjohnson916-maven</name>
        <url>https://dl.bintray.com/adjohnson916/maven</url>
    </repository>
</repositories>

<dependencies>
    <dependency>
        <groupId>me.andrz.jackson</groupId>
        <artifactId>jackson-json-reference-core</artifactId>
        <version>0.2.0</version>
    </dependency>
</dependencies>

Gradle

repositories {
    maven {
        url 'https://dl.bintray.com/adjohnson916/maven'
    }
}

dependencies {
    compile 'me.andrz.jackson:jackson-json-reference-core:0.2.0'
}

Manual

Download JAR(s) from BinTray:

• Core
• CLI

License

See LICENSE.