public void run() {
try {
InputStreamReader isr = new InputStreamReader(is);
BufferedReader br = new BufferedReader(isr);
String line = null;
while ((line = br.readLine()) != null) {
stringBuffer.append(line).append(System.getProperty("line.separator"));
}
} catch (IOException ioe) {
ioe.printStackTrace();
}
}
public String getBuffer() {
return stringBuffer.toString();
}
public String runCmd(String command, String[] parms) throws ServiceException {
String result = "";
try {
String osName = System.getProperty("os.name");
LOG.debug("OS name: " + osName);
String[] cmd;
int nextParm;
if (osName.equals("Windows NT") || osName.equals("Windows XP")) {
cmd = new String[3 + parms.length];
cmd[0] = "cmd.exe";
cmd[1] = "/C";
nextParm = 2;
} else if (osName.equals("Windows 95")) {
cmd = new String[3 + parms.length];
cmd[0] = "command.com";
cmd[1] = "/C";
nextParm = 2;
} else // Assuming that else is unix or unix-like in this regard of not needing an explicit
// shell program.
{
cmd = new String[1 + parms.length];
nextParm = 0;
}
// Example values to use for 'command' here:
// If using cygwin on a Windows OS:
// "c:\\cygwin\\bin\\telnet.exe 192.168.1.101"
// "c:\\cygwin\\bin\\expect.exe /tmp/telnettojbdesktop.exp"
// If using a Unix (I'm guessing here):
// "telnet 192.168.1.101"
// "expect /tmp/telnettojbdesktop.exp"
cmd[nextParm++] = command;
for (String p : parms) {
cmd[nextParm++] = p;
}
if (LOG.isDebugEnabled()) {
StringBuffer buffer = new StringBuffer();
for (String a : cmd) {
buffer.append(a).append(" ");
}
LOG.debug("Executing " + buffer.toString());
}
Runtime rt = Runtime.getRuntime();
Process proc = rt.exec(cmd);
StreamGobbler errorGobbler = new StreamGobbler(proc.getErrorStream(), "ERROR");
StreamGobbler outputGobbler = new StreamGobbler(proc.getInputStream(), "OUTPUT");
errorGobbler.start();
outputGobbler.start();
// This is the stream used to pass INPUT to the process. (It's called the "output stream"
// because
// it's an *output* stream from the perspective of this class.)
OutputStream outputStream = proc.getOutputStream();
int exitVal = proc.waitFor();
if (exitVal != 0) {
LOG.error("Exit value from " + cmd[2] + ": " + exitVal);
}
String stdErr = errorGobbler.getBuffer();
if (stdErr.length() > 0) {
result = stdErr;
}
String stdOut = outputGobbler.getBuffer();
if (stdOut.length() > 0) {
// It's intentional that stdOut replaces what was in stdErr if there *is* anything in
// stdOut.
result = stdOut;
}
} catch (Throwable t) {
throw new ServiceException(ServiceError.RUNTIME_ERROR, t);
}
return result;
}
