Package org.apache.daffodil.api.debugger

package org.apache.daffodil.api.debugger

Provides the classes necessary to perform parse tracing or create a custom debugger

Overview

Daffodil comes with one prebuilt debugger, the trace Debugger, which outputs verbose information during the parsing processes, which can be used to aid in debugging a DFDL schema. For example, the trace Debugger can be used like so:

 
 Debugger td = Daffodil.newTraceDebugger(System.out);
 dp.setDebugger(td);
 

Additionally, one may create their own debugger by creating a class that implements the DaffodilDebuggerRunner interface and then calling Daffodil.newDaffodilDebugger(customRunner) to get a debugger. Or they can create a class that implements the Debugger interface. Then with either, they may call DataProcessor.withDebugger(debugger) to set the debugger.

Related Packages

Package	Description
org.apache.daffodil.api	Provides the classes necessary to compile DFDL schemas, parse and unparse files using the compiled objects, and retrieve results and parsing diagnostics

Interfaces

Class	Description
DaffodilDebuggerRunner	Daffodil Debugger Runner interface to run the built-in Daffodil debugger.
Debugger	Debugger interface for receiving debug events during Daffodil processing