sequenceextractor

Class SequenceExtractor

java.lang.Object

sequenceextractor.SequenceExtractor

public class SequenceExtractor
extends Object

The sequence extractor class that receives code snippets and translates it to sequences.

Author:

themis

Constructor Summary

Constructors

Constructor and Description
SequenceExtractor()

Method Summary

Modifier and Type	Method and Description
static String	extractSequence(String snippet) Extracts the sequence for a snippet.
static String	extractSequence(String snippet, boolean keepFunctionCallTypes, boolean keepLiterals, boolean keepBranches, boolean outputTree, boolean flattenOutput, boolean addUniqueIDs) Extracts the sequence for a snippet.
protected static String	getASTofSnippet(String snippet) Returns the Abstract Syntax Tree of a snippet.
protected static String	getASTofSnippet(String snippet, boolean keepNodeInfo) Returns the Abstract Syntax Tree of a snippet.

Methods inherited from class java.lang.Object

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

Constructor Detail

SequenceExtractor

public SequenceExtractor()

Method Detail

getASTofSnippet

protected static String getASTofSnippet(String snippet,
                                        boolean keepNodeInfo)

Returns the Abstract Syntax Tree of a snippet. This function can also handle non-complete snippets (i.e. those not surrounded by a method or class).

Parameters:

snippet - the snippet given as a string.

keepNodeInfo - denotes if any added nodes should be kept in the AST.

Returns:

the AST of a snippet.

getASTofSnippet

protected static String getASTofSnippet(String snippet)

Returns the Abstract Syntax Tree of a snippet.

Parameters:

snippet - the snippet given as a string.

Returns:

the AST of a snippet.

extractSequence

public static String extractSequence(String snippet)

Extracts the sequence for a snippet.

Parameters:

snippet - the snippet of which the sequence is extracted.

Returns:

the snippet as a list of statements.

extractSequence

public static String extractSequence(String snippet,
                                     boolean keepFunctionCallTypes,
                                     boolean keepLiterals,
                                     boolean keepBranches,
                                     boolean outputTree,
                                     boolean flattenOutput,
                                     boolean addUniqueIDs)

Extracts the sequence for a snippet.

Parameters:

snippet - the snippet of which the sequence is extracted.

keepFunctionCallTypes - true if call types should be kept, or false otherwise.

keepLiterals - true if literals (primitives) should be kept, or false otherwise.

keepBranches - true if all branches should be kept, or false for the first branch.

outputTree - true if the output should be a tree, or false for output as a sequence.

flattenOutput - true if the output should be flattened, or false otherwise.

Returns:

the snippet as a list of statements.