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Sbe Tool Guide

Zach Bray edited this page Aug 22, 2023 · 92 revisions

The SBE tool is a command line utility that can be used to generate codecs and validate message declaration schemas. The tool is written in Java and can run as an executable JAR file, e.g:

$ java -jar sbe-all-${SBE_LIB_VERSION}.jar <message-declarations-file.xml>

The tool will accept options using the system property option format as follows:

$ java [-Doption=value] -jar sbe-all-${SBE_TOOL_VERSION}.jar <message-declarations-file.xml>

The tool supports the following options:

  • sbe.xinclude.aware: Is XInclude supported for the schema. Defaults to false.
  • sbe.validation.xsd: Use XSD to validate or not. XSD filename should be the provided option.
  • sbe.validation.stop.on.error: Should the parser stop on first error encountered? Defaults to false.
  • sbe.validation.warnings.fatal: Are warnings in parsing considered fatal? Defaults to false.
  • sbe.validation.suppress.output: Should the parser suppress output during validation? Defaults to false.
  • sbe.generate.stubs: Generate stubs or not. Defaults to true.
  • sbe.target.language: Target language for code generation, defaults to Java (also supports: CPP, C, and Golang). Additionally a fully qualified class name can be provided which implements TargetCodeGeneratorLoader, e.g. uk.co.real_logic.sbe.generation.csharp.CSharp.
  • sbe.generate.ir: Generate IR or not. Defaults to false.
  • sbe.output.dir: Target directory for output generation, defaults to current directory.
  • sbe.java.generate.interfaces: Generate implements clauses for Java common interfaces from Agrona. Defaults to false.
  • sbe.java.encoding.buffer.type: Buffer type to be used for the encoder stubs. This type needs to mutate the underlying buffer. Defaults to MutableDirectBuffer.
  • sbe.java.decoding.buffer.type: Buffer type to be used for the decoder stubs. This type only reads the underlying buffer. Defaults to DirectBuffer.
  • sbe.target.namespace: Namespace to be used for generated code. Equates to package for Java. If not provided then the package attribute from the schema will be used.
  • sbe.cpp.namespaces.collapse: Boolean to turn on or off collapsing of nested namespaces in generated C++ stubs. Defaults to false.
  • sbe.java.generate.group-order.annotation: Should the GroupOrder annotation be generated, defaults to false.
  • sbe.keyword.append.token: String to append to schema tokens that collide with reserved words in the target language.
  • sbe.decode.unknown.enum.values: Support unknown decoded enum values.
  • sbe.csharp.generate.namespace.dir: Should a directory be created for the namespace under the output directory? Defaults to true.
  • sbe.generate.access.order.checks: Generate code to check flyweight methods are accessed in a valid order? Defaults to false. This option is supported by the Java, C#, and C++ generators. Requires platform-specific configuration to enable the checks at runtime, e.g., setting a system property or constant symbol. Find out more in Safe Flyweight Usage.
  • sbe.cpp.disable.implicit.copying: Disable generation of copy constructors and copy assignment operators? Defaults to false.

The SBE tool can be used with Maven see