Github user itaifrenkel commented on a diff in the pull request:
https://github.com/apache/storm/pull/489#discussion_r27454334
--- Diff: storm-core/src/jvm/backtype/storm/utils/ShellProcess.java ---
@@ -186,4 +163,35 @@ public String getProcessInfoString() {
public String getProcessTerminationInfoString() {
return String.format(" exitCode:%s, errorString:%s ",
getExitCode(), getErrorsString());
}
+
+ private Optional<String> getErrorStreamMessage() {
+ int offset = 0;
+ if (processErrorStream != null) {
+ ByteArrayOutputStream out = null;
+ try {
+ do {
+ int bufferSize = processErrorStream.available();
+ if (bufferSize > 0) {
+ if (out == null) {
+ out = new ByteArrayOutputStream();
+ }
+ byte[] errorReadingBuffer = new byte[bufferSize];
+ final int read =
processErrorStream.read(errorReadingBuffer, 0, bufferSize);
+ out.write(errorReadingBuffer, offset, bufferSize);
+ offset += read;
+ }
+ } while (processErrorStream.available() > 0);
+
+ if (offset > 0)
+ return of(new String(out.toByteArray()));
+ } catch (Exception e) {
+ return of("(Unable to capture error stream)");
+ } finally {
+ if (out != null) {
+ IOUtils.closeQuietly(out);
+ }
+ }
+ }
+ return Optional.absent();
--- End diff --
@reembs This project ussually do not use Optional<>... so I would just
return an empty string
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