aQute.lib.osgi
Class Clazz

java.lang.Object
  aQute.lib.osgi.Clazz

public class Clazz
extends Object

Nested Class Summary

protected static class	Clazz.Assoc
static class	Clazz.QUERY

Field Summary

static EnumSet<Clazz.QUERY>

HAS_ARGUMENT

Constructor Summary

Clazz(String path, Resource resource)

Method Summary

protected void	constantClass(DataInputStream in, int poolIndex)
protected void	constantDouble(DataInputStream in, int poolIndex)
protected void	constantLong(DataInputStream in, int poolIndex)
protected void	constantUtf8(DataInputStream in, int poolIndex)
protected void	crawl(byte[] code) We must find Class.forName references ...
String	getFQN()
static String	getPackage(String clazz)
String	getPath()
Map<String,Map<String,String>>	getReferred()
String	getSourceFile()
boolean	is(Clazz.QUERY query, Instruction instr, Map<String,Clazz> classspace)
protected void	nameAndType(DataInputStream in, int poolIndex, byte tag)
Set<String>	parseClassFile()
Set<String>	parseClassFile(InputStream in)
Set<String>	parseClassFile(InputStream in, ClassDataCollector cd)
Set<String>	parseClassFileWithCollector(ClassDataCollector cd)
void	parseDescriptor(String descriptor) This method parses a descriptor and adds the package of the descriptor to the referenced packages.
protected void	pool(Object[] pool, int[] intPool)
void	reset() .class construct for different compilers sun 1.1 Detect static variable class$com$acme$MyClass 1.2 " 1.3 " 1.4 " 1.5 ldc_w (class) 1.6 " eclipse 1.1 class$0, ldc (string), invokestatic Class.forName 1.2 " 1.3 " 1.5 ldc (class) 1.6 " 1.5 and later is not an issue, sun pre 1.5 is easy to detect the static variable that decodes the class name.
String	toString()

Methods inherited from class java.lang.Object

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

Field Detail

HAS_ARGUMENT

public static EnumSet<Clazz.QUERY> HAS_ARGUMENT

Constructor Detail

Clazz

public Clazz(String path,
             Resource resource)

Method Detail

parseClassFile

public Set<String> parseClassFile()
                           throws IOException

Throws:

IOException

parseClassFile

public Set<String> parseClassFile(InputStream in)
                           throws IOException

Throws:

IOException

parseClassFileWithCollector

public Set<String> parseClassFileWithCollector(ClassDataCollector cd)
                                        throws IOException

Throws:

IOException

parseClassFile

public Set<String> parseClassFile(InputStream in,
                                  ClassDataCollector cd)
                           throws IOException

Throws:

IOException

pool

protected void pool(Object[] pool,
                    int[] intPool)

nameAndType

protected void nameAndType(DataInputStream in,
                           int poolIndex,
                           byte tag)
                    throws IOException

Parameters:

in -

poolIndex -

tag -

Throws:

IOException

constantClass

protected void constantClass(DataInputStream in,
                             int poolIndex)
                      throws IOException

Parameters:

in -

poolIndex -

Throws:

IOException

constantDouble

protected void constantDouble(DataInputStream in,
                              int poolIndex)
                       throws IOException

Parameters:

in -

Throws:

IOException

constantLong

protected void constantLong(DataInputStream in,
                            int poolIndex)
                     throws IOException

Parameters:

in -

Throws:

IOException

constantUtf8

protected void constantUtf8(DataInputStream in,
                            int poolIndex)
                     throws IOException

Parameters:

in -

poolIndex -

Throws:

IOException

crawl

protected void crawl(byte[] code)

We must find Class.forName references ...

Parameters:

code -

parseDescriptor

public void parseDescriptor(String descriptor)

This method parses a descriptor and adds the package of the descriptor to the referenced packages. The syntax of the descriptor is:

   descriptor ::= ( '(' references ')' )? references
   references ::= reference *
   reference  ::= 'L' classname ( '<' references '>' )? ';' | 'B' | 'Z' | ... | '+' | '-' | '[' 
 

This methods uses heavy recursion to parse the descriptor and a roving pointer to limit the creation of string objects.

Parameters:

descriptor - The to be parsed descriptor

rover - The pointer to start at

getPackage

public static String getPackage(String clazz)

getReferred

public Map<String,Map<String,String>> getReferred()

getPath

public String getPath()

getSourceFile

public String getSourceFile()

reset

public void reset()

.class construct for different compilers sun 1.1 Detect static variable class$com$acme$MyClass 1.2 " 1.3 " 1.4 " 1.5 ldc_w (class) 1.6 " eclipse 1.1 class$0, ldc (string), invokestatic Class.forName 1.2 " 1.3 " 1.5 ldc (class) 1.6 " 1.5 and later is not an issue, sun pre 1.5 is easy to detect the static variable that decodes the class name. For eclipse, the class$0 gives away we have a reference encoded in a string. compilerversions/compilerversions.jar contains test versions of all versions/compilers.

is

public boolean is(Clazz.QUERY query,
                  Instruction instr,
                  Map<String,Clazz> classspace)

toString

public String toString()

Overrides:

toString in class Object

getFQN

public String getFQN()