private int executeRunnerClassAsForked() throws BuildException {
CommandlineJava cmd = initializeJavaCommand();
Execute execute = new Execute(new LogStreamHandler(this, Project.MSG_INFO, Project.MSG_WARN));
execute.setCommandline(cmd.getCommandline());
execute.setNewenvironment(false);
execute.setAntRun(getProject());
log(cmd.describeCommand(), Project.MSG_VERBOSE);
int retVal;
try {
retVal = execute.execute();
} catch (IOException e) {
throw new BuildException("Process fork failed.", e, getLocation());
}
return retVal;
}
/**
* Execute the task.
*
* @throws BuildException on error
*/
public void execute() throws BuildException {
validateAttributes();
// TODO: use ANTLR to parse the grammar file to do this.
File generatedFile = getGeneratedFile();
boolean targetIsOutOfDate = targetFile.lastModified() > generatedFile.lastModified();
boolean superGrammarIsOutOfDate =
superGrammar != null && (superGrammar.lastModified() > generatedFile.lastModified());
if (targetIsOutOfDate || superGrammarIsOutOfDate) {
if (targetIsOutOfDate) {
log(
"Compiling " + targetFile + " as it is newer than " + generatedFile,
Project.MSG_VERBOSE);
} else {
log(
"Compiling " + targetFile + " as " + superGrammar + " is newer than " + generatedFile,
Project.MSG_VERBOSE);
}
populateAttributes();
commandline.createArgument().setValue(targetFile.toString());
log(commandline.describeCommand(), Project.MSG_VERBOSE);
int err = run(commandline.getCommandline());
if (err != 0) {
throw new BuildException("ANTLR returned: " + err, getLocation());
} else {
String output = bos.toString();
if (output.indexOf("error:") > -1) {
throw new BuildException("ANTLR signaled an error: " + output, getLocation());
}
}
} else {
log(
"Skipped grammar file. Generated file " + generatedFile + " is newer.",
Project.MSG_VERBOSE);
}
}