ramitg254 commented on code in PR #471:
URL: https://github.com/apache/tez/pull/471#discussion_r3000612211
##########
tez-tools/analyzers/job-analyzer/src/main/java/org/apache/tez/analyzer/CSVResult.java:
##########
@@ -93,31 +95,52 @@ public void setComments(String comments) {
'}';
}
- //For testing
- public void dumpToFile(String fileName) throws IOException {
- OutputStreamWriter writer = new OutputStreamWriter(
- new FileOutputStream(new File(fileName)),
- Charset.forName("UTF-8").newEncoder());
- BufferedWriter bw = new BufferedWriter(writer);
- bw.write(Joiner.on(",").join(headers));
- bw.newLine();
- for (String[] record : recordsList) {
-
- if (record.length != headers.length) {
- continue; //LOG error msg?
- }
+ private static File validateOutputFile(String fileName) throws IOException {
+ //null or empty string check
+ if (fileName == null || fileName.trim().isEmpty()) {
+ throw new IllegalArgumentException("fileName must not be null or empty");
+ }
+
+ // resolve relative path
+ File target = new File(fileName).getCanonicalFile();
+ File parent = target.getParentFile();
+
+ // check if the parent directory exists
+ if (parent == null || !parent.isDirectory()) {
+ throw new IOException("Parent directory does not exist: " + parent);
+ }
+ // check if the parent directory is writable
+ if (!parent.canWrite()) {
+ throw new IOException("No write permission on directory: " + parent);
+ }
+ return target;
+ }
- StringBuilder sb = new StringBuilder();
- for(int i=0;i<record.length;i++) {
- sb.append(!Strings.isNullOrEmpty(record[i]) ? record[i] : " ");
- if (i < record.length - 1) {
- sb.append(",");
+ public void dumpToFile(String fileName) throws IOException {
+ File target = validateOutputFile(fileName);
+ Path targetPath = target.toPath();
+
+ try (BufferedWriter bw = new BufferedWriter(
+ // atomically create new file if it doesn't exist, and if exists,
throw an exception
Review Comment:
done
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