smengcl commented on code in PR #4584:
URL: https://github.com/apache/ozone/pull/4584#discussion_r1195744685
##########
hadoop-hdds/rocks-native/src/main/java/org/apache/hadoop/hdds/utils/db/managed/ManagedSSTDumpIterator.java:
##########
@@ -86,51 +81,58 @@ public ManagedSSTDumpIterator(ManagedSSTDumpTool
sstDumpTool,
* @return Optional of the integer empty if no integer exists
*/
private Optional<Integer> getNextNumberInStream() throws IOException {
- StringBuilder value = new StringBuilder();
- int val;
- while ((val = processOutput.read()) != -1) {
- if (val >= '0' && val <= '9') {
- value.append((char) val);
- } else if (value.length() > 0) {
- break;
- }
+ int n = processOutput.read(intBuffer, 0, 4);
+ if (n == 4) {
+ return Optional.of(ByteBuffer.wrap(intBuffer).getInt());
+ } else if (n >= 0) {
+ throw new IllegalStateException(String.format("Integer expects " +
+ "4 bytes to be read from the stream, but read only %d bytes", n));
}
- return value.length() > 0 ? Optional.of(Integer.valueOf(value.toString()))
- : Optional.empty();
+ return Optional.empty();
}
- /**
- * Reads the next n chars from the stream & makes a string.
- *
- * @param numberOfChars
- * @return String of next chars read
- * @throws IOException
- */
- private String readNextNumberOfCharsFromStream(int numberOfChars)
- throws IOException {
- StringBuilder value = new StringBuilder();
- while (numberOfChars > 0) {
- int noOfCharsRead = processOutput.read(charBuffer, 0,
- Math.min(numberOfChars, charBuffer.length));
- if (noOfCharsRead == -1) {
- break;
+ private Optional<byte[]> getNextByteArray() throws IOException {
+ Optional<Integer> size = getNextNumberInStream();
+ if (size.isPresent()) {
+ byte[] b = new byte[size.get()];
Review Comment:
debug logging the byte array size
```suggestion
if (size.isPresent()) {
if (LOG.isDebugEnabled()) {
LOG.debug("Size of byte array: {}", size.get());
}
byte[] b = new byte[size.get()];
```
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