io.github.lukehutch.fastclasspathscanner.classfileparser

Class ClassfileBinaryParser

java.lang.Object

io.github.lukehutch.fastclasspathscanner.classfileparser.ClassfileBinaryParser

public class ClassfileBinaryParser
extends Object

A classfile binary format parser. Implements its own buffering to avoid the overhead of using DataInputStream. This class should only be used by a single thread at a time, but can be re-used to scan multiple classfiles in sequence, to avoid re-allocating buffer memory.

Constructor Summary

Constructors

Constructor and Description
ClassfileBinaryParser(ScanSpec scanSpec, InterruptionChecker interruptionChecker, Log.DeferredLog log)

Method Summary

Modifier and Type	Method and Description
ClassInfoUnlinked	readClassInfoFromClassfileHeader(InputStream inputStream, String relativePath, Map<String,HashSet<String>> classNameToStaticFinalFieldsToMatch, ConcurrentHashMap<String,String> stringInternMap) Directly examine contents of classfile binary header to determine annotations, implemented interfaces, the super-class etc.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

ClassfileBinaryParser

public ClassfileBinaryParser(ScanSpec scanSpec,
                             InterruptionChecker interruptionChecker,
                             Log.DeferredLog log)

Method Detail

readClassInfoFromClassfileHeader

public ClassInfoUnlinked readClassInfoFromClassfileHeader(InputStream inputStream,
                                                          String relativePath,
                                                          Map<String,HashSet<String>> classNameToStaticFinalFieldsToMatch,
                                                          ConcurrentHashMap<String,String> stringInternMap)
                                                   throws IOException

Directly examine contents of classfile binary header to determine annotations, implemented interfaces, the super-class etc. Creates a new ClassInfo object, and adds it to classNameToClassInfoOut. Assumes classpath masking has already been performed, so that only one class of a given name will be added.

Throws:

IOException