MessagePack for Java
MessagePack is an efficient binary serialization format. It lets you exchange data among multiple languages like JSON. But it's faster and smaller. Small integers are encoded into a single byte, and typical short strings require only one extra byte in addition to the strings themselves.
- Message Pack specification: https://github.com/msgpack/msgpack/blob/master/spec.md
- Value API is in a designing phase: https://github.com/msgpack/msgpack-java/pull/109
For Maven users:
<dependency> <groupId>org.msgpack</groupId> <artifactId>msgpack-core</artifactId> <version>0.7.0-M6</version> </dependency>
For sbt users:
libraryDependencies += "org.msgpack" % "msgpack-core" % "0.7.0-M6"
msgpack-java supports serialization and deserialization of Java objects through jackson-databind. For details, see msgpack-jackson/README.md. The template-based serialization mechanism used in v06 is deprecated.
msgpack-java uses sbt for building the projects. For the basic usage of sbt, see:
Basic sbt commands
Enter the sbt console:
Here is a list of sbt commands for daily development:
> ~compile # Compile source codes > ~test:compile # Compile both source and test codes > ~test # Run tests upon source code change > ~test-only *MessagePackTest # Run tests in the specified class > ~test-only *MessagePackTest -- -n prim # Run the test tagged as "prim" > project msgpack-core # Focus on a specific project > package # Create a jar file in the target folder of each project > findbugs # Produce findbugs report in target/findbugs > jacoco:cover # Report the code coverage of tests to target/jacoco folder > jcheckStyle # Run check style
> publishLocal # Install to local .ivy2 repository > publishM2 # Install to local .m2 Maven repository > publishSigned # Publish GPG signed artifacts to the Sonatype repository > sonatypeRelease # Publish to the Maven Central (It will be synched within less than 4 hours)
For publishing to Maven central, msgpack-java uses sbt-sonatype plugin. Set Sonatype account information (user name and password) in the global sbt settings. To protect your password, never include this file in your project.
credentials += Credentials("Sonatype Nexus Repository Manager", "oss.sonatype.org", "(Sonatype user name)", "(Sonatype password)")
msgpack-core # Contains packer/unpacker implementation that never uses third-party libraries msgpack-jackson # Contains jackson-dataformat-java implementation