X-Git-Url: https://gerrit.onap.org/r/gitweb?a=blobdiff_plain;f=src%2Ftest%2Fjava%2Forg%2Fonap%2Faai%2Fbabel%2Flogging%2FLogReader.java;h=f18fb6d585d9dc1b22bbc128436d4cd333f1a663;hb=refs%2Fchanges%2F87%2F72287%2F2;hp=c2a8e648a8d1da36c8cf60e45178253b4a73a644;hpb=66b3afa06776e9944ad515206d281d67747c9770;p=aai%2Fbabel.git

diff --git a/src/test/java/org/onap/aai/babel/logging/LogReader.java b/src/test/java/org/onap/aai/babel/logging/LogReader.java
index c2a8e64..f18fb6d 100644
--- a/src/test/java/org/onap/aai/babel/logging/LogReader.java
+++ b/src/test/java/org/onap/aai/babel/logging/LogReader.java
@@ -18,6 +18,7 @@
  * limitations under the License.
  * ============LICENSE_END=========================================================
  */
+
 package org.onap.aai.babel.logging;
 
 import java.io.BufferedReader;
@@ -27,11 +28,12 @@ import java.io.IOException;
 import java.nio.file.Files;
 import java.nio.file.Path;
 import java.nio.file.Paths;
+import java.util.Comparator;
 import java.util.HashMap;
 import java.util.Map;
 import java.util.Optional;
 import java.util.concurrent.TimeUnit;
-import org.apache.commons.lang.time.StopWatch;
+import org.apache.commons.lang3.time.StopWatch;
 import org.junit.Assert;
 
 public class LogReader {
@@ -57,9 +59,15 @@ public class LogReader {
     }
 
     /**
+     * Find the most recently modified log file with a name starting with the specified prefix.
+     *
      * @param logDirectory
-     * @return the most recently created log file.
+     *            the root folder storing log files
+     * @param filenamePrefix
+     *            the log file name prefix
+     * @return the most recently created log file
      * @throws IOException
+     *             if an I/O error occurs
      */
     public File getLogFile(String logDirectory, String filenamePrefix) throws IOException {
         Path cachedLog = cachedLogMap.get(filenamePrefix);
@@ -67,7 +75,7 @@ public class LogReader {
         if (cachedLog == null) {
             Optional<Path> latestFilePath = Files.list(Paths.get(logDirectory))
                     .filter(f -> Files.isDirectory(f) == false && f.getFileName().toString().startsWith(filenamePrefix))
-                    .max((f1, f2) -> (int) (f1.toFile().lastModified() - f2.toFile().lastModified()));
+                    .max(Comparator.comparingLong(f -> f.toFile().lastModified()));
             if (latestFilePath.isPresent()) {
                 cachedLog = latestFilePath.get();
             } else {
@@ -78,8 +86,11 @@ public class LogReader {
     }
 
     /**
+     * Wait for and read new log entries.
+     *
      * @return new lines appended to the log file
      * @throws IOException
+     *             If an I/O error occurs
      */
     public String getNewLines() throws IOException {
         StopWatch stopwatch = new StopWatch();