/**
* Import the source code corpus from the given directory
*
* @param srcDirPath
* @return
* @throws Exception
*/
public static SourceCodeCorpus importCodeData() throws Exception {
String srcDirPath = Config.getInstance().getCodeCorpusDir();
SourceCodeCorpus corpus = new SourceCodeCorpus();
File srcDir = new File(srcDirPath);
if (!srcDir.isDirectory()) {
System.out.println("The input directory path is invalid!");
return corpus;
}
// read the basic information from the "/basicInfo"
String basicInfoFilePath = Paths.get(srcDirPath, "basicInfo").toString();
if (!new File(basicInfoFilePath).isFile()) {
System.out.println("The file recording the basic information is missing!");
} else {
BufferedReader basicInfoReader = new BufferedReader(new FileReader(basicInfoFilePath));
// read the first line: fileType=\tfileType
String[] strs = basicInfoReader.readLine().split("\t");
String fileType = strs[1].trim();
// read the second line: segmentationLength=\tsegmentationLength
strs = basicInfoReader.readLine().split("\t");
int segmentationLength = Integer.parseInt(strs[1].trim());
corpus.setFileType(fileType);
corpus.setSegmentationLength(segmentationLength);
basicInfoReader.close();
}
// read the code content information from the "/codeContentCorpus"
String codeContentDirPath = Paths.get(srcDirPath, "codeContentCorpus").toString();
File codeContentDir = new File(codeContentDirPath);
if (!codeContentDir.isDirectory()) {
System.out.println("The directory for original code contents is missing!");
} else {
for (File oneFile : codeContentDir.listFiles()) {
if (oneFile.isFile()) {
String fullClassName = oneFile.getName();
BufferedReader reader = new BufferedReader(new FileReader(oneFile));
String codeContent = reader.readLine();
// If exists the full class name, set the code content;
// else create a new SourceCode object and set the code consent
boolean isExist = false;
for (SourceCode sourceCode : corpus.getSourceCodeList()) {
if (sourceCode.getFullClassName().equals(fullClassName.trim())) {
sourceCode.setContent(codeContent);
isExist = true;
break;
}
}
if (!isExist) {
SourceCode newSourceCode = new SourceCode();
newSourceCode.setFullClassName(fullClassName);
newSourceCode.setContent(codeContent);
corpus.addSourceCode(newSourceCode);
}
reader.close();
}
}
}
// read the code segment information from code segment corpus
String codeSegmentDirPath = Paths.get(srcDirPath, "codeSegmentCorpus").toString();
File codeSegmentDir = new File(codeSegmentDirPath);
if (!codeSegmentDir.isDirectory()) {
System.out.println("The directory for code segments is missing!");
} else {
for (File oneFile : codeContentDir.listFiles()) {
if (oneFile.isFile()) {
// fullClassName+@+"segment index".java
String oneSegmentName = oneFile.getName();
BufferedReader reader = new BufferedReader(new FileReader(oneFile));
String codeSegment = reader.readLine();
String[] strs = oneSegmentName.split("@");
String fullClassName = strs[0].trim();
// If exists the full class name, add the segment to the list;
// else create a new SourceCode object and add the segment to the list
boolean isExist = false;
for (SourceCode sourceCode : corpus.getSourceCodeList()) {
if (sourceCode.getFullClassName().equals(fullClassName.trim())) {
if (!sourceCode.getCodeSegmentList().contains(codeSegment)) {
sourceCode.addCodeSegment(codeSegment);
}
isExist = true;
break;
}
}
if (!isExist) {
SourceCode newSourceCode = new SourceCode();
newSourceCode.setFullClassName(fullClassName);
newSourceCode.addCodeSegment(codeSegment);
corpus.addSourceCode(newSourceCode);
}
reader.close();
}
}
}
// read the class names information from the "/classNameCorpus"
String classNameDirPath = Paths.get(srcDirPath, "classNameCorpus").toString();
File classNameDir = new File(classNameDirPath);
if (!classNameDir.isDirectory()) {
System.out.println("The directory for class names is missing!");
} else {
for (File oneFile : classNameDir.listFiles()) {
if (oneFile.isFile()) {
String fullClassName = oneFile.getName();
BufferedReader reader = new BufferedReader(new FileReader(oneFile));
String classNamesString = reader.readLine();
// If exists the full class name, add the class names to the list;
// else create a new SourceCode object and add all the class names to the list
boolean isExist = false;
for (SourceCode sourceCode : corpus.getSourceCodeList()) {
if (sourceCode.getFullClassName().equals(fullClassName.trim())) {
if (classNamesString == null) {
isExist = true;
break;
}
for (String oneClassName : classNamesString.split(" ")) {
if (!sourceCode.getClassNameList().contains(oneClassName.trim())) {
sourceCode.addClassName(oneClassName.trim());
}
}
isExist = true;
break;
}
}
if (!isExist) {
SourceCode newSourceCode = new SourceCode();
newSourceCode.setFullClassName(fullClassName);
if (classNamesString != null) {
for (String oneClassName : classNamesString.split(" ")) {
newSourceCode.addClassName(oneClassName.trim());
}
}
corpus.addSourceCode(newSourceCode);
}
reader.close();
}
}
}
// read the method names information from the "/methodNameCorpus"
String methodNameDirPath = Paths.get(srcDirPath, "methodNameCorpus").toString();
File methodNameDir = new File(methodNameDirPath);
if (!methodNameDir.isDirectory()) {
System.out.println("The directory for method names is missing!");
} else {
for (File oneFile : methodNameDir.listFiles()) {
if (oneFile.isFile()) {
String fullClassName = oneFile.getName();
BufferedReader reader = new BufferedReader(new FileReader(oneFile));
String methodNamesString = reader.readLine();
// If exists the full class name, add the class names to the list;
// else create a new SourceCode object and add all the method names to the list
boolean isExist = false;
for (SourceCode sourceCode : corpus.getSourceCodeList()) {
if (sourceCode.getFullClassName().equals(fullClassName.trim())) {
if (methodNamesString == null) {
isExist = true;
break;
}
for (String oneMethodName : methodNamesString.split(" ")) {
if (!sourceCode.getMethodNameList().contains(oneMethodName.trim()))
sourceCode.addMethodName(oneMethodName.trim());
}
isExist = true;
break;
}
}
if (!isExist) {
SourceCode newSourceCode = new SourceCode();
newSourceCode.setFullClassName(fullClassName);
if (methodNamesString != null) {
for (String oneMethodName : methodNamesString.split(" ")) {
newSourceCode.addMethodName(oneMethodName.trim());
}
}
corpus.addSourceCode(newSourceCode);
}
reader.close();
}
}
}
return corpus;
}
/**
* Extract the code data from the project
*
* @param srcDirPath
* @param fileType
* @return
* @throws Exception
*/
public static SourceCodeCorpus extractCodeData() throws Exception {
String srcDirPath = Config.getInstance().getDatasetDir();
String fileType = Config.getInstance().getFileType();
int segmentationLength = Config.getInstance().getSegmentationLength();
SourceCodeCorpus corpus = new SourceCodeCorpus(segmentationLength, fileType);
File srcDir = new File(srcDirPath);
if (!srcDir.isDirectory()) {
System.out.println("The input directory path is invalid");
return corpus;
}
ArrayList<String> fileList = new ArrayList<String>();
detectAllFiles(srcDirPath, fileType, fileList);
for (String oneFilePath : fileList) {
SourceCode oneCodeFile = new SourceCode();
FileParser parser = new FileParser(oneFilePath);
// set the full class name(package+fileName)
String packageName = parser.getPackageName();
String fullClassName = new String();
if (packageName.trim().equals("")) {
// no package, the name only
fullClassName = new File(oneFilePath).getName();
} else {
// full class name = package name + file name
fullClassName = packageName + "." + new File(oneFilePath).getName();
}
oneCodeFile.setFullClassName(fullClassName);
// set the file content
String[] terms = parser.getContent();
String fileContent = new String();
for (String term : terms) {
String stemmedTerm = Stem.stem(term.toLowerCase());
// term = term.toLowerCase();
if (!(Stopword.isKeyword(term) || Stopword.isEnglishStopword(term))) {
fileContent += stemmedTerm + " ";
}
}
// append the class and method names in a file to the end of a file
String[] classAndMethodNameString = parser.getClassNameAndMethodName();
for (String term : classAndMethodNameString) {
fileContent += Stem.stem(term.toLowerCase()) + " ";
}
oneCodeFile.setContent(fileContent);
// set the class names in the file
String classNamesString = parser.getAllClassName();
String[] classNameArray = classNamesString.split(" ");
for (String oneClassName : classNameArray) {
oneCodeFile.addClassName(oneClassName);
}
// set the method names in the file
String methodNamesString = parser.getAllMethodName();
String[] methodNameArray = methodNamesString.split(" ");
for (String oneMethodName : methodNameArray) {
oneCodeFile.addMethodName(oneMethodName);
}
// add the source code file information to the corpus
corpus.addSourceCode(oneCodeFile);
}
// set the original code file count
Config.getInstance().setFileCount(corpus.getSourceCodeList().size());
// segment each source code file
corpus.segment();
return corpus;
}
/**
* Export the code data to the given directory
*
* @param dstDirPath
* @param corpus
* @throws IOException
*/
public static void exportCodeData(SourceCodeCorpus corpus) throws IOException {
String dstDirPath = Config.getInstance().getCodeCorpusDir();
// create a directory
File dstDir = new File(dstDirPath);
if (!dstDir.isDirectory()) {
dstDir.mkdir();
}
// record the basic information in the "/basicInfo"
String basicInfoFilePath = Paths.get(dstDirPath, "basicInfo").toString();
FileWriter basicInfoWriter = new FileWriter(basicInfoFilePath);
// fileType + segmentationLength
String basicInfoStr =
"fileType="
+ "\t"
+ corpus.getFileType()
+ "\r\n"
+ "segmentationLength="
+ "\t"
+ corpus.getSegmentationLength();
basicInfoWriter.write(basicInfoStr);
basicInfoWriter.close();
// corpus built by original code contents
String codeContentDirPath = Paths.get(dstDirPath, "codeContentCorpus").toString();
File codeContentDir = new File(codeContentDirPath);
if (!codeContentDir.isDirectory()) {
codeContentDir.mkdir();
}
// corpus built by code segments
String codeSegmentDirPath = Paths.get(dstDirPath, "codeSegmentCorpus").toString();
File codeSegmentDir = new File(codeSegmentDirPath);
if (!codeSegmentDir.isDirectory()) {
codeSegmentDir.mkdir();
}
// corpus built by class name list
String classNameDirPath = Paths.get(dstDirPath, "classNameCorpus").toString();
File classNameDir = new File(classNameDirPath);
if (!classNameDir.isDirectory()) {
classNameDir.mkdir();
}
// corpus built by method name list
String methodNameDirPath = Paths.get(dstDirPath, "methodNameCorpus").toString();
File methodNameDir = new File(methodNameDirPath);
if (!methodNameDir.isDirectory()) {
methodNameDir.mkdir();
}
// Traverse every file in the source code file list
for (SourceCode oneCodeFile : corpus.getSourceCodeList()) {
String fileName;
FileWriter writer;
// For each source code file, the name in the original content corpus is the full class name
fileName = Paths.get(codeContentDirPath, oneCodeFile.getFullClassName()).toString();
writer = new FileWriter(fileName);
writer.write(oneCodeFile.getContent());
writer.close();
// For each source code file, the name in the code segments corpus is the full class
// name+@+"the segment index".java
String[] codeSegmentArray = oneCodeFile.getCodeSegmentList().toArray(new String[0]);
for (int i = 0; i < codeSegmentArray.length; i++) {
fileName =
Paths.get(codeSegmentDirPath, oneCodeFile.getFullClassName() + "@" + i + ".java")
.toString();
writer = new FileWriter(fileName);
writer.write(codeSegmentArray[i]);
writer.close();
}
// For each source code file, the name in the class Names corpus is the full class name
fileName = Paths.get(classNameDirPath, oneCodeFile.getFullClassName()).toString();
writer = new FileWriter(fileName);
String classNamesString = new String();
for (String oneClassName : oneCodeFile.getClassNameList()) {
classNamesString += oneClassName + " ";
}
writer.write(classNamesString.trim());
writer.close();
// For each source code file, the name in the method Names corpus is the full class name
fileName = Paths.get(methodNameDirPath, oneCodeFile.getFullClassName()).toString();
writer = new FileWriter(fileName);
String methodNamesString = new String();
for (String oneMethodName : oneCodeFile.getMethodNameList()) {
methodNamesString += oneMethodName + " ";
}
writer.write(methodNamesString.trim());
writer.close();
}
}
