I have to launch console commands from java to publish to verdaccio.
So it works(pretty bad), but for few packages processes stucks. When I destroy them it returns code 137, witch means not enough memory. I watched in profiler, I have much more free heap, then used.
Maybe it's not because not enough memory.
How to understand why it stucks and how to fix it?
protected String execCommand(List<String> command) throws IOException, NpmAlreadyExistException{
ProcessBuilder pb = new ProcessBuilder(command);
File workingFolder = new File(System.getProperty("user.dir"));
pb.directory(workingFolder);
Process process = pb.start();
try {
boolean finished = process.waitFor(60, TimeUnit.SECONDS);
logger.info("PROC FINISHED: " + finished);
if (!finished) {
process.destroyForcibly();
int exitCode = process.waitFor();
logger.info("PROC EXIT CODE: " + exitCode);
return null;
}
} catch (InterruptedException e) {
logger.info("PROCESS WAS INTERRUPTED!!!");
logger.info(e.getMessage());
return null;
}
logger.info("PROC EXIT CODE: " + process.exitValue());
String s;
BufferedReader stdErr = new BufferedReader(new InputStreamReader(process.getErrorStream()));
StringBuilder err = new StringBuilder();
while ((s = stdErr.readLine()) != null) {
err.append("\n").append(s);
}
stdErr.close();
BufferedReader stdInput = new BufferedReader(new InputStreamReader(process.getInputStream()));
StringBuilder result = new StringBuilder();
while ((s = stdInput.readLine()) != null) {
result.append("\n").append(s);
}
stdInput.close();
process.destroy();
logger.info(String.format("execCommand response [stdin]: %s", result));
logger.info(String.format("execCommand response [stdErr]: %s", err));
if (err.length() != 0) {
if (err.toString().contains("Update the 'version' field in package.json and try again.")) {
throw new NpmAlreadyExistException("Пакет с таким именем и версией уже существует в репозитории.");
}
}
return result.toString();
}
Thank you!
Related
I call the.py file in a basic java project and it takes about 30 seconds to run.
import java.io.BufferedReader;
import java.io.InputStreamReader;
public class Main {
public static void main(String[] args) {
Process proc;
String line ="";
BufferedReader in;
try {
proc = Runtime.getRuntime().exec("D:\\anaconda\\python.exe " +
"D:/2017/Python/pythonProject8/main.py " +
"D:\\2017\\Python\\pythonProject8\\flower1.jpg");
proc.waitFor();
in = new BufferedReader(new InputStreamReader(proc.getInputStream()));
while ((line = in.readLine()) != null) {
System.out.println(line);
}
in.close();
} catch (Exception e) {
e.printStackTrace();
}
}
}
result:
enter image description here
But this code is skipped when I use spring-boot.
#GetMapping("test")
public String test(){
System.out.println(1);
Process proc;
String line = "";
String result = "";
try {
proc = Runtime.getRuntime().exec("D:\\anaconda\\python.exe " +
"D:/2017/Python/pythonProject8/main.py " +
"D:\\2017\\Python\\pythonProject8\\flower3.jpg");// 执行py文件
proc.waitFor();
BufferedReader in = new BufferedReader(new InputStreamReader(proc.getInputStream()));
while ((line = in.readLine()) != null) {
System.out.println(line);
result += line;
}
in.close();
} catch (Exception e) {
e.printStackTrace();
}
System.out.println(2);
return result;
}
result:
enter image description here
I want to know how to run spring-boot properly.
thanks.
If your.py file takes a long time to run then you shouldn't use Process and use ProcessBuilder instead.
public ArrayList<String> getPasswords(String path) throws IOException {
String result = "";
ProcessBuilder processBuilder = new ProcessBuilder("D:\\anaconda\\python.exe ", "D:\\2017\\Python\\pythonProject8\\main.py",path);
//The path here is me.py needs to be passed in
processBuilder.redirectErrorStream(true);
final Process process = processBuilder.start();
final BufferedReader in = new BufferedReader(new InputStreamReader(process.getInputStream()));
String s = null;
int i = 0;
while ((s = in.readLine()) != null)//This if is I need to ignore some of the output
{
i++;
if (i >6) {
result += s + '\n';
}
}
if (!result.equals("")){
return new ArrayList<String>(Arrays.asList(result.split("\n")));
}
return new ArrayList<String>();
}
You may run an error "DLL load failed while importing XXXX".
Please update the packages required for python.
Getting following error on executing sqlldr command.
SQL*Loader-704: Internal error: ulconnect: OCIServerAttach [0]
ORA-12154: TNS:could not resolve the connect identifier specified
Following is the sqlldr cmd :
sqlldr BILLING/'"Bill!ng#123#"'#10.113.242.162:1521/bssstc control=/log/bssuser/CDR/Postpaid_CDR_Log/CTRL_File.ctrl log=/log/bssuser/CDR/Postpaid_CDR_Log/LOG_File.log direct=false silent=header skip_unusable_indexes=true rows=200000 bindsize=20000000 readsize=20000000 ERRORS=25000
Note :- When executing the same through command prompt its getting succes.
Following is the code snipt i tried.
Runtime rt = Runtime.getRuntime();
Process proc = null;
try {
proc = rt.exec(sqlLoaderCommand);
InputStream stderr = proc.getErrorStream();
InputStreamReader isr = new InputStreamReader(stderr);
BufferedReader br = new BufferedReader(isr);
String line = null;
while ((line = br.readLine()) != null){
logger.info(line);
}
int exitVal = proc.waitFor();
logger.info("Process exitValue: " + exitVal);
int returnValue = proc.exitValue();
String str = null;
if (returnValue != 0) {
InputStream in = proc.getInputStream();
InputStreamReader preader = new InputStreamReader(in);
BufferedReader breader = new BufferedReader(preader);
String msg = null;
while ((msg = breader.readLine()) != null) {
logger.info(msg);
str = str + msg;
}
System.out.flush();
preader.close();
breader.close();
in.close();
InputStream inError = proc.getErrorStream();
InputStreamReader preaderError = new InputStreamReader(inError);
BufferedReader breaderError = new BufferedReader(preaderError);
String errorMsg = null;
while ((errorMsg = breaderError.readLine()) != null) {
logger.info("Copy Error: " + errorMsg);
str = str + errorMsg;
}
}
} catch (IOException e) {
e.printStackTrace();
} catch (NullPointerException e) {
e.printStackTrace();
}
I think error could be in your username - "Bill!ng#123#". Check out the quotes escaping rules in Java. Like:
String str = "BILLING/'\"Bill!ng#123#\"'#10.113.242.162:1521";
1) From command line try to execute tnsping 10.113.242.162
if the tool will return full description you have to set "oracle.net.tns_admin" in java.
System.setProperty("oracle.net.tns_admin", "ORACLE_DIRECTORY/network/admin"); -- put correct path here and execute before your code
2) For test you can try to use full connection description .
instead of 10.113.242.162:1521/bssstc ->
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=10.113.242.162)(PORT=1521))(CONNECT_DATA=(SERVICE_NAME=bssstc))
Hi i am trying to run this command that is passed on to the runExternalProgram. When i ran the command through cmd, it was successful and i was able to receive a message but when i run the java program, there was no error issue but no message was received. How should I go about solving this error?
String Command ="cmd /c start java -classpath C:/Users/admin/Desktop/Smsworkspace/sendmessage/src;C:/Users/admin/Desktop/Smsworkspace/sendmessage/src/plivo-java-3.0.9-jar-with-dependencies.jar sendmessage.SendSMS2 +xxxxx +xxxxx CS";
runExternalProgram
public HashMap runExternalProgram_Windows(String Command) {
String _LOC = "[SB_Utilities: runExternalProgram_Windows]";
System.out.println(_LOC + "1.0");
System.out.println("Command is: "+ Command);
String line;
InputStream stderr = null;
InputStream stdout = null;
HashMap _m = new HashMap();
try {
Process process = Runtime.getRuntime ().exec (Command);
System.out.println("Process is: " + process);
Worker worker = new Worker(process);
System.out.println("Worker is: " + worker);
worker.start();
try {
worker.join(180000);
if (worker.exit == null)
{
throw new Exception();
}
}
catch(Exception ex) {
ex.printStackTrace();
_m.put("LOG_ERROR_EXTERNAL", "180 second time out...check connection");
return _m;
}
finally {
process.destroy();
}
stderr = process.getErrorStream ();
stdout = process.getInputStream ();
String _log_output = null;
// clean up if any output in stdout
BufferedReader brCleanUp = new BufferedReader (new InputStreamReader (stdout));
System.out.println("Outcome is: "+brCleanUp.readLine());
while ((line = brCleanUp.readLine ()) != null) {
if (_log_output==null) {
_log_output = line + "\n";
} else {
_log_output = _log_output + line + "\n";
}
}
brCleanUp.close();
_m.put("LOG_OUTPUT", _log_output);
String _log_error = null;
// clean up if any output in stderr
brCleanUp=new BufferedReader (new InputStreamReader (stderr));
System.out.println("Outcome error is "+brCleanUp.readLine());
while ((line = brCleanUp.readLine ()) != null) {
if (_log_error==null) {
_log_error = line + "\n";
} else {
_log_error = _log_error + line + "\n";
}
}
brCleanUp.close();
_m.put("LOG_ERROR_EXTERNAL", _log_error);
} catch (Exception e) {
e.printStackTrace();
}
return _m;
}
I am trying to run a script using Java and ProcessBuilder. When I try to run, I receive the following message: error=2, No such file or directory.
I dont know what I am doing wrong but here is my code (ps: I tried to execute just the script without arguments and the error is the same:
String[] command = {"/teste/teste_back/script.sh, "+argument1+", "+argument+""};
ProcessBuilder p = new ProcessBuilder(command);
try {
// create a process builder to send a command and a argument
Process p2 = p.start();
BufferedReader br = new BufferedReader(new InputStreamReader(p2.getInputStream()));
String line;
log.info("Output of running " + command + " is: ");
System.out.println("Output of running " + command + " is: ");
while ((line = br.readLine()) != null) {
log.info(line);
}
}
Try replacing
String[] command = {"/teste/teste_back/script.sh, "+argument1+", "+argument+""};
with
String[] command = {"/teste/teste_back/script.sh", argument1, argument};
Refer ProcessBuilder for more information.
ProcessBuilder(String... command)
Constructs a process builder with the specified operating system
program and arguments.
You can define a method with ProcessBuilder.
public static Map execCommand(String... str) {
Map<Integer, String> map = new HashMap<>();
ProcessBuilder pb = new ProcessBuilder(str);
pb.redirectErrorStream(true);
Process process = null;
try {
process = pb.start();
} catch (IOException e) {
e.printStackTrace();
}
BufferedReader reader = null;
if (process != null) {
reader = new BufferedReader(new InputStreamReader(process.getInputStream()));
}
String line;
StringBuilder stringBuilder = new StringBuilder();
try {
if (reader != null) {
while ((line = reader.readLine()) != null) {
stringBuilder.append(line).append("\n");
}
}
} catch (IOException e) {
e.printStackTrace();
}
try {
if (process != null) {
process.waitFor();
}
} catch (InterruptedException e) {
e.printStackTrace();
}
if (process != null) {
map.put(0, String.valueOf(process.exitValue()));
}
try {
map.put(1, stringBuilder.toString());
} catch (StringIndexOutOfBoundsException e) {
if (stringBuilder.toString().length() == 0) {
return map;
}
}
return map;
}
You can call the function to execute shell command or script
String cmds = "ifconfig";
String[] callCmd = {"/bin/bash", "-c", cmds};
System.out.println("exit code:\n" + execCommand(callCmd).get(0).toString());
System.out.println();
System.out.println("command result:\n" + execCommand(callCmd).get(1).toString());
Unless your script.sh has a comma in its name, that is the mistake:
String[] command = {"/teste/teste_back/script.sh" , argument1, argument};
I tried to read a process'es std out and error using the solutions in How to redirect Process Builder's output to a string?, but it does not output anything.
Shouldn't there be a way to attach a stream reader to the process builder before starting the process?
/*
private String getInputAsString(InputStream is)
{
try(java.util.Scanner s = new java.util.Scanner(is))
{
return s.useDelimiter("\\A").hasNext() ? s.next() : "";
}
}
*/
private static BufferedReader getOutput(Process p) {
return new BufferedReader(new InputStreamReader(p.getInputStream()));
}
private static BufferedReader getError(Process p) {
return new BufferedReader(new InputStreamReader(p.getErrorStream()));
}
List<String> args = new ArrayList<String>();
args.add ("cmd"); // command name
args.add ("/c");
args.add ("start");
args.add (fileName);
ProcessBuilder pb = new ProcessBuilder (args);
pb.directory(new File(Support.getJustThePathFromFile(file)));
Map<String, String> envs = pb.environment();
String path = envs.get("Path");
envs.put("Path", Paths.get(".").toAbsolutePath().normalize().toString() + ";" +path);
//pb.redirectOutput(new Redirect() {});
Process p = pb.start();
//String stdOut = getInputAsString(p.getInputStream());
//String stdErr = getInputAsString(p.getErrorStream());
//System.err.println("stdOut=" + stdOut);
//System.err.println("stdErr=" + stdErr);
try
{
p.waitFor();
BufferedReader output = getOutput(p);
BufferedReader error = getError(p);
String ligne = "";
while ((ligne = output.readLine()) != null) {
System.out.println(ligne);
}
while ((ligne = error.readLine()) != null) {
System.out.println(ligne);
}
}
catch (InterruptedException e)
{
e.printStackTrace();
}