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package org.gnunet.seaspider;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FilenameFilter;
import org.gnunet.seaspider.parser.CParser;
import org.gnunet.seaspider.parser.ParseException;
import org.gnunet.seaspider.parser.TokenMgrError;
import org.gnunet.seaspider.parser.nodes.Node;
public class Seaspider {
private static final boolean DEBUG = true;
private static CParser parser = null;
private static boolean isFirstFile = true;
private static int successCount = 0;
private static int failureCount = 0;
private static FilenameFilter filter = new FilenameFilter() {
public boolean accept(File dir, String fileName) {
File file = new File(dir.getPath() + "/" + fileName);
if ((file.isDirectory() && !fileName.startsWith(".")) || (fileName.endsWith(".c") && !fileName.startsWith("test_")))
/* directories like .svn are of no interest */
return true;
return false;
}
};
private static void doParseFile(String filePath)
{
try {
if (isFirstFile) {
parser = new CParser(new FileInputStream(filePath));
isFirstFile = false;
}
else
parser.ReInit(new FileInputStream(filePath));
}
catch (FileNotFoundException e) {
/* This should never happen */
System.err.println("File not found!");
e.printStackTrace();
System.exit(1);
}
try {
System.out.println("Parsing file: " + filePath);
Node root = parser.TranslationUnit();
root.accept(new ExpressionExtractorVisitor(filePath));
System.out.println("File " + filePath + " parsed successfully.");
successCount++;
}
catch (ParseException e) {
System.out.println("Encountered errors during parsing file " + filePath);
failureCount++;
if (DEBUG)
e.printStackTrace();
} catch (TokenMgrError e) {
System.err.println("Encountered errors during parsing file " + filePath + ":" + e.getMessage());
failureCount++;
if (DEBUG)
e.printStackTrace();
}
}
private static void parseRecursively(String path)
{
File file = new File(path);
if (!file.isDirectory()) {
if (path.endsWith(".db"))
return;
/* A source file */
doParseFile(path);
return;
}
/* A source directory */
System.out.println("Reading from: " + path + " source directory...");
String[] dirContents = file.list(filter);/* Only directories and .c files */
for (int i = 0; i < dirContents.length; i++) {
String fullPath = path + "/" + dirContents[i];
parseRecursively(fullPath);
}
}
public static void main(String args[])
{
String dbFilePath = null;
if (args.length < 2)
{
System.err.println("Invoke seaspider with database filename and source path!");
System.exit(1);
}
System.out.println("Seaspider 0.0\n");
for (int i = 0; i < args.length; i++) {
if (args[i].endsWith(".db"))
dbFilePath = args[i];
else {
/* Should be a valid path for a file or a directory */
File file = new File(args[i]);
if (!file.exists()) {
System.err.println("\"" + args[i] + "\" is an invalid file or directory location");
System.exit(1);
} else if (!file.isDirectory() && !args[i].endsWith(".c")) {
System.err.println("\"" + args[i] + "\" only source files can be parsed");
}
}
}
if (null == dbFilePath) {
System.err.println("Missing database file path");
System.exit(1);
}
/* Create the Expressions Database */
ExpressionDatabaseHandler.createExpressionDatabase(dbFilePath);
for (int i = 0; i < args.length; i++)
parseRecursively(args[i]);
/* We're done with the Expression Database, close it */
ExpressionDatabaseHandler.closeDatabase();
System.out.println(successCount + " parsed successfully.");
System.out.println("Failed to parse " + failureCount + " files.");
}
}
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