/**
* Starts a native process on the server
*
* @param command the command to start the process
* @param dir the dir in which the process starts
*/
static String startProcess(String command, String dir) throws IOException {
StringBuffer ret = new StringBuffer();
String[] comm = new String[3];
comm[0] = COMMAND_INTERPRETER[0];
comm[1] = COMMAND_INTERPRETER[1];
comm[2] = command;
long start = System.currentTimeMillis();
try {
// Start process
Process ls_proc = Runtime.getRuntime().exec(comm, null, new File(dir));
// Get input and error streams
BufferedInputStream ls_in = new BufferedInputStream(ls_proc.getInputStream());
BufferedInputStream ls_err = new BufferedInputStream(ls_proc.getErrorStream());
boolean end = false;
while (!end) {
int c = 0;
while ((ls_err.available() > 0) && (++c <= 1000)) {
ret.append(conv2Html(ls_err.read()));
}
c = 0;
while ((ls_in.available() > 0) && (++c <= 1000)) {
ret.append(conv2Html(ls_in.read()));
}
try {
ls_proc.exitValue();
// if the process has not finished, an exception is thrown
// else
while (ls_err.available() > 0) ret.append(conv2Html(ls_err.read()));
while (ls_in.available() > 0) ret.append(conv2Html(ls_in.read()));
end = true;
} catch (IllegalThreadStateException ex) {
// Process is running
}
// The process is not allowed to run longer than given time.
if (System.currentTimeMillis() - start > MAX_PROCESS_RUNNING_TIME) {
ls_proc.destroy();
end = true;
ret.append("!!!! Process has timed out, destroyed !!!!!");
}
try {
Thread.sleep(50);
} catch (InterruptedException ie) {
}
}
} catch (IOException e) {
ret.append("Error: " + e);
}
return ret.toString();
}
public BytecodeBuffer(String filename) throws IOException {
BufferedInputStream in = null;
try {
in = new BufferedInputStream(new FileInputStream(filename));
bytecodes = new byte[in.available()];
in.read(bytecodes);
size = bytecodes.length;
pos = 0;
} finally {
if (in != null) {
try {
in.close();
} catch (IOException ex) {
}
}
}
}
/**
* Get binary data of a source file.
*
* @param path The canonical path of source file.
* @return Source file data.
*/
public byte[] read(String path) {
if (!binaryCache.containsKey(path)) {
try {
BufferedInputStream bf = new BufferedInputStream(new FileInputStream(new File(path)));
try {
byte[] data = new byte[bf.available()];
bf.read(data);
detectBOM(data, path);
binaryCache.put(path, data);
} finally {
bf.close();
}
} catch (IOException e) {
App.exit(e);
}
}
return binaryCache.get(path);
}
