public static void compile(String filename, String parameters) throws Exception {
String source = "";
String s = "";
int last = filename.lastIndexOf(".cmtjava");
if (last == -1) { // arquivos devem ter extensão cmtjava
System.out.println("Usage: java -jar cmtjavac.jar <options> <source file>");
System.exit(0);
} else source = filename.substring(0, last);
last = source.lastIndexOf('/');
if (last != -1) source = source.substring(last + 1, source.length());
System.out.println("Translating " + source + ".cmtjava");
String environmentVariable = System.getenv("CMTJAVAC");
String pathForTemplate = environmentVariable + "/CMTJava.stg";
// load in CMTJava.stg template group, put in templates variable
FileReader groupFileR = null;
try {
groupFileR = new FileReader(pathForTemplate);
} catch (Exception e) {
System.out.println(
"Could not load the template file for translating the source file.\nPlease set the CMTJAVAC environment variable with the path of the template file");
System.exit(0);
}
StringTemplateGroup templates = new StringTemplateGroup(groupFileR);
groupFileR.close();
File f = new File(filename);
FileInputStream fis = new FileInputStream(f);
ANTLRInputStream input = new ANTLRInputStream(fis);
CMTJavaLexer lexer = new CMTJavaLexer(input);
TokenRewriteStream tokens = new TokenRewriteStream(lexer);
CMTJavaParser parser = new CMTJavaParser(tokens);
parser.setTemplateLib(templates);
/*CMTJavaParser.compilationUnit_return r = */ parser
.compilationUnit(); // parse rule compilationUnit
// StringTemplate output = (StringTemplate)r.getTemplate();
try {
BufferedWriter out = new BufferedWriter(new FileWriter(source + ".java"));
out.write(tokens.toString());
out.close();
} catch (IOException e) {
e.printStackTrace();
}
Process t = null;
try {
System.out.println("javac " + parameters + " " + source + ".java");
t = Runtime.getRuntime().exec("javac " + parameters + " " + source + ".java");
} catch (Exception e) {
System.out.println("Could not load the javac compiler.");
System.exit(0);
}
BufferedReader stdInput = new BufferedReader(new InputStreamReader(t.getInputStream()));
BufferedReader stdError = new BufferedReader(new InputStreamReader(t.getErrorStream()));
// read the output from the command
System.out.println("Compiling " + source + ".java");
while ((s = stdInput.readLine()) != null) {
System.out.println("éoq");
System.out.println(s);
}
// read any errors from the attempted command
while ((s = stdError.readLine()) != null) {
System.out.println(s);
}
}
public static void main(String[] args) throws Exception {
try {
CatalogReader foo = new CatalogReader("Catalog.xml");
Map<String, TableData> catalog = foo.getCatalog();
// System.out.println (CatalogReader.printCatalog (res));
InputStreamReader converter = new InputStreamReader(System.in);
BufferedReader in = new BufferedReader(converter);
System.out.format("\nSQL>");
String soFar = in.readLine() + " ";
// loop forever, or until someone asks to quit
while (true) {
// keep on reading from standard in until we hit a ";"
while (soFar.indexOf(';') == -1) soFar += (in.readLine() + " ");
// split the string
String toParse = soFar.substring(0, soFar.indexOf(';') + 1);
soFar = soFar.substring(soFar.indexOf(';') + 1, soFar.length());
toParse = toParse.toLowerCase();
// parse it
ANTLRStringStream parserIn = new ANTLRStringStream(toParse);
SQLLexer lexer = new SQLLexer(parserIn);
CommonTokenStream tokens = new CommonTokenStream(lexer);
SQLParser parser = new SQLParser(tokens);
// if we got a quit
if (parser.parse() == false) break;
// print the results
System.out.println("RESULT OF PARSING");
System.out.println("Expressions in SELECT:");
ArrayList<Expression> mySelect = parser.getSELECT();
for (Expression e : mySelect) System.out.println("\t" + e);
System.out.println("Tables in FROM:");
Map<String, String> myFrom = parser.getFROM();
System.out.println("\t" + myFrom);
System.out.println("WHERE clause:");
Expression myWhere = parser.getWHERE();
if (myWhere != null) System.out.println("\t" + myWhere);
System.out.println("GROUPING att:");
String myGroup = parser.getGROUPBY();
if (myGroup != null) System.out.println("\t" + myGroup);
SemanticChecker sc = new SemanticChecker(mySelect, myFrom, myWhere, myGroup, catalog);
if (sc.execute() == true)
new Optimizer(mySelect, myFrom, myWhere, myGroup, catalog).execute();
else System.err.println("Semantic checking failed");
System.out.format("\nSQL>");
}
} catch (Exception e) {
System.err.println("Interpreter.main.73: error!");
}
}