Fix sonar issues in MusicUtil

Change-Id: I19b7515c8bfcd614f3bf417267f0e53793ea53a2
Issue-ID: PORTAL-523
Signed-off-by: burdziak <olaf.burdziakowski@nokia.com>

1 files changed, 20 insertions, 15 deletions

diff --git a/ecomp-sdk/epsdk-music/src/main/java/org/onap/portalapp/music/util/MusicUtil.java b/ecomp-sdk/epsdk-music/src/main/java/org/onap/portalapp/music/util/MusicUtil.java
index 15c3bb0c..2e17d0c1 100644
--- a/ecomp-sdk/epsdk-music/src/main/java/org/onap/portalapp/music/util/MusicUtil.java
+++ b/ecomp-sdk/epsdk-music/src/main/java/org/onap/portalapp/music/util/MusicUtil.java
@@ -68,11 +68,18 @@ public class MusicUtil {
 	private static String cleanUpFreq = MusicProperties.getProperty(MusicProperties.MUSIC_CLEAN_UP_FREQUENCY);
 	private static String musicSerializeCompress = MusicProperties.getProperty(MusicProperties.MUSIC_SERIALIZE_COMPRESS);
 	private static String musicEnable = MusicProperties.getProperty(MusicProperties.MUSIC_ENABLE);
+	private static final String FAILED_2_READ_PROPERTY_FILE = "Failed to read property file ";
+	private static final String TRUE = "true";
 
 	public static boolean isSessionMetaAttr(String key){
 		return sessionAttrNameSet.contains(key);
 	}
 
+	//hide public constructor
+	private MusicUtil()
+	{
+	}
+
 	@SuppressWarnings("unchecked")
 	public static <T> T musicRestResponseDataParsing(ResultSet rs, String attributeName) throws Exception{
 		logger.debug(EELFLoggerDelegate.debugLogger, "musicRestResponseDataParsing: start");
@@ -87,7 +94,7 @@ public class MusicUtil {
 	}
 
 	@SuppressWarnings("unchecked")
-	public static <T> T musicDeserialize (ByteBuffer byteBuf) throws Exception{
+	public static <T> T musicDeserialize (ByteBuffer byteBuf) throws IOException, ClassNotFoundException {
 		logger.debug(EELFLoggerDelegate.debugLogger, "musicDeserialize: start");
 		ByteArrayInputStream byteArr = new ByteArrayInputStream(byteBuf.array());
 		ObjectInputStream ois  = null;
@@ -100,7 +107,7 @@ public class MusicUtil {
 		return (T) ois.readObject();
 	}
 
-	public static ByteBuffer musicSerialize (Object value) throws Exception{
+	public static ByteBuffer musicSerialize (Object value) {
 		logger.debug(EELFLoggerDelegate.debugLogger, "musicSerialize: start");
 		ByteArrayOutputStream bo = new ByteArrayOutputStream();			
 		try {	
@@ -121,7 +128,7 @@ public class MusicUtil {
 		return ByteBuffer.wrap(bo.toByteArray());
 	}
 
-	public static MusicSession parseMetaData (Row row) throws Exception{
+	public static MusicSession parseMetaData (Row row) {
 		logger.debug(EELFLoggerDelegate.debugLogger, "parseMetaData: start");
 
 		if(row==null)
@@ -157,34 +164,34 @@ public class MusicUtil {
 
 	public static boolean isMusicSerializeCompress(){
 		if(musicSerializeCompress==null){
-			logger.error(EELFLoggerDelegate.errorLogger, "Failed to read property file " + MusicProperties.MUSIC_SERIALIZE_COMPRESS +" fall back to eventual put");
+			logger.error(EELFLoggerDelegate.errorLogger, FAILED_2_READ_PROPERTY_FILE + MusicProperties.MUSIC_SERIALIZE_COMPRESS +" fall back to eventual put");
 			return false;
 		}
-		return musicSerializeCompress.trim().equalsIgnoreCase("true");
+		return TRUE.equalsIgnoreCase(musicSerializeCompress.trim());
 	}
 
 	public static boolean isAtomicPut(){
 		if(atomicPut==null){
-			logger.error(EELFLoggerDelegate.errorLogger, "Failed to read property file " + MusicProperties.MUSIC_ATOMIC_PUT +" fall back to eventual put");
+			logger.error(EELFLoggerDelegate.errorLogger, FAILED_2_READ_PROPERTY_FILE + MusicProperties.MUSIC_ATOMIC_PUT +" fall back to eventual put");
 			return false;
 		}
-		return atomicPut.trim().equalsIgnoreCase("true");
+		return TRUE.equalsIgnoreCase(atomicPut.trim());
 	}
 
 	public static boolean isAtomicGet(){
 		if(atomicGet==null){
-			logger.error(EELFLoggerDelegate.errorLogger, "Failed to read property file " + MusicProperties.MUSIC_ATOMIC_GET +" fall back to eventual get");
+			logger.error(EELFLoggerDelegate.errorLogger, FAILED_2_READ_PROPERTY_FILE + MusicProperties.MUSIC_ATOMIC_GET +" fall back to eventual get");
 			return false;
 		}
-		return atomicGet.trim().equalsIgnoreCase("true");
+		return TRUE.equalsIgnoreCase(atomicGet.trim());
 	}
 
 	public static boolean isCached(){
 		if(cached==null){
-			logger.error(EELFLoggerDelegate.errorLogger, "Failed to read property file " + MusicProperties.MUSIC_CACHE +" fall back to non cache");
+			logger.error(EELFLoggerDelegate.errorLogger, FAILED_2_READ_PROPERTY_FILE + MusicProperties.MUSIC_CACHE +" fall back to non cache");
 			return false;
 		}
-		return cached.trim().equalsIgnoreCase("true");
+		return TRUE.equalsIgnoreCase(cached.trim());
 	}
 	
 	public static int convertHoursToMillSec(int hour){
@@ -211,9 +218,7 @@ public class MusicUtil {
 	public static boolean isMusicEnable(){
 		if(musicEnable==null)
 			return false;
-		if(musicEnable.equals("true"))
-			return true;
-		else
-			return false;
+
+		return TRUE.equals(musicEnable);
 	}
 }