org.eclipse.rse.services.clientserver.java
Class BasicClassFileParser

java.lang.Object
  org.eclipse.rse.services.clientserver.java.BasicClassFileParser

public class BasicClassFileParser

extends Object

This is a basic class file parser that returns a package name from a class file.

Constructor Summary

BasicClassFileParser(InputStream stream)
Constuctor.

Method Summary

protected AbstractCPInfo	getCPInfo(int index) Returns the entry at the constant pool index.
String	getQualifiedClassName() Returns the package.
protected String	getString(int index) Returns the name given an index to the constant pool table.
boolean	isExecutable() Returns whether there is a public static void main(String[]) method.
void	parse() Parses a class file.
protected AbstractAttributeInfo	readAttribute(EnhancedDataInputStream dataStream) Reads an attribute.
protected AbstractCPInfo	readConstantInfo(EnhancedDataInputStream dataStream) Gets the constant info.
protected void	readConstantPool(EnhancedDataInputStream dataStream) Reads the constant pool.
protected FieldInfo	readField(EnhancedDataInputStream dataStream) Reads a field.
protected void	readFields(EnhancedDataInputStream dataStream) Reads the fields.
protected void	readInterfaces(EnhancedDataInputStream dataStream) Reads the interfaces.
protected MethodInfo	readMethod(EnhancedDataInputStream dataStream) Reads a method.
protected void	readMethods(EnhancedDataInputStream dataStream) Reads the methods.

Methods inherited from class java.lang.Object

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

Constructor Detail

BasicClassFileParser

public BasicClassFileParser(InputStream stream)

Constuctor.

Parameters:

stream - the input stream to parse.

Method Detail

getQualifiedClassName

public String getQualifiedClassName()

Returns the package.

Returns:

the package.

isExecutable

public boolean isExecutable()

Returns whether there is a public static void main(String[]) method.

Returns:

true if there is, otherwise false.

parse

public void parse()
           throws IOException

Parses a class file.

Throws:

IOException - if an I/O error occurs.

readConstantPool

protected void readConstantPool(EnhancedDataInputStream dataStream)
                         throws IOException

Reads the constant pool.

Parameters:

dataStream - the data stream.

Throws:

IOException - if an I/O error occurs.

readConstantInfo

protected AbstractCPInfo readConstantInfo(EnhancedDataInputStream dataStream)
                                   throws IOException

Gets the constant info.

Parameters:

dataStream - the data stream.

Returns:

the constant info.

Throws:

IOException - if an I/O error occurs.

readInterfaces

protected void readInterfaces(EnhancedDataInputStream dataStream)
                       throws IOException

Reads the interfaces.

Parameters:

dataStream - the data stream.

Throws:

IOException - if an I/O error occurs.

readFields

protected void readFields(EnhancedDataInputStream dataStream)
                   throws IOException

Reads the fields.

Parameters:

dataStream - the data stream.

Throws:

IOException - if an I/O error occurs.

readField

protected FieldInfo readField(EnhancedDataInputStream dataStream)
                       throws IOException

Reads a field.

Parameters:

dataStream - the data stream.

Throws:

IOException - if an I/O error occurs.

readMethods

protected void readMethods(EnhancedDataInputStream dataStream)
                    throws IOException

Reads the methods.

Parameters:

dataStream - the data stream.

Throws:

IOException - if an I/O error occurs.

readMethod

protected MethodInfo readMethod(EnhancedDataInputStream dataStream)
                         throws IOException

Reads a method.

Parameters:

dataStream - the data stream.

Throws:

IOException - if an I/O error occurs.

readAttribute

protected AbstractAttributeInfo readAttribute(EnhancedDataInputStream dataStream)
                                       throws IOException

Reads an attribute.

Parameters:

dataStream - the data stream.

Throws:

IOException - if an I/O error occurs.

getCPInfo

protected AbstractCPInfo getCPInfo(int index)

Returns the entry at the constant pool index.

Parameters:

index - the index.

Returns:

the constant pool table entry.

getString

protected String getString(int index)

Returns the name given an index to the constant pool table. The entry at the index must be a UTF8 string entry