Example usage for com.fasterxml.jackson.dataformat.cbor CBORGenerator writeBytes

Introduction

In this page you can find the example usage for com.fasterxml.jackson.dataformat.cbor CBORGenerator writeBytes.

Prototype

public void writeBytes(byte[] data, int offset, int len) throws IOException 

Source Link

Document

Method for directly inserting specified bytes in output at current position.

Usage

From source file:org.apache.nutch.tools.CommonCrawlDataDumper.java

/**
 * Writes the CBOR "Self-Describe Tag" (value 55799, serialized as 3-byte
 * sequence of {@code 0xd9d9f7}) at the current position. This method must
 * be used to write the CBOR magic number at the beginning of the document.
 * Since version 2.5, <a//www . j a v a2  s  .com
 * href="https://github.com/FasterXML/jackson-dataformat-cbor"
 * >jackson-dataformat-cbor</a> will support the {@code WRITE_TYPE_HEADER}
 * feature to write that type tag at the beginning of the document.
 *
 * @param generator {@link CBORGenerator} object used to create a CBOR-encoded document.
 * @throws IOException if any I/O error occurs.
 * @see <a href="https://tools.ietf.org/html/rfc7049#section-2.4.5">RFC
 * 7049</a>
 */
private void writeMagicHeader(CBORGenerator generator) throws IOException {
    // Writes self-describe CBOR
    // https://tools.ietf.org/html/rfc7049#section-2.4.5
    // It will be supported in jackson-cbor since 2.5
    byte[] header = new byte[3];
    header[0] = (byte) 0xd9;
    header[1] = (byte) 0xd9;
    header[2] = (byte) 0xf7;
    generator.writeBytes(header, 0, header.length);
}

---