This patch removes first chunk of duplicated code

Removing some of the duplicated code, and few minor code
simplifications. Keeping the original file formatting to make review
easier, will update the patch and reformat the file to comply
with ONAP java code requirements
Issue-ID: SDC-1270

Change-Id: I3f6393a19197754bcb860957b0db87100a8ac893
Signed-off-by: dekstroza <dejan.kitic@ericsson.com>

1 files changed, 19 insertions, 36 deletions

diff --git a/common/onap-common-configuration-management/onap-configuration-management-core/src/main/java/org/onap/config/ConfigurationUtils.java b/common/onap-common-configuration-management/onap-configuration-management-core/src/main/java/org/onap/config/ConfigurationUtils.java
index 7f22461cda..358dab923f 100644
--- a/common/onap-common-configuration-management/onap-configuration-management-core/src/main/java/org/onap/config/ConfigurationUtils.java
+++ b/common/onap-common-configuration-management/onap-configuration-management-core/src/main/java/org/onap/config/ConfigurationUtils.java
@@ -491,28 +491,9 @@ public class ConfigurationUtils {
      * @return the configuration builder
      */
     public static BasicConfigurationBuilder<FileBasedConfiguration> getConfigurationBuilder(URL url) {
-        ReloadingFileBasedConfigurationBuilder<FileBasedConfiguration> builder = null;
         ConfigurationType configType = ConfigurationUtils.getConfigType(url);
-        switch (configType) {
-            case PROPERTIES:
-                builder = new ReloadingFileBasedConfigurationBuilder<FileBasedConfiguration>(
-                        PropertiesConfiguration.class);
-                break;
-            case XML:
-                builder = new ReloadingFileBasedConfigurationBuilder<FileBasedConfiguration>(
-                        XMLConfiguration.class);
-                break;
-            case JSON:
-                builder = new ReloadingFileBasedConfigurationBuilder<FileBasedConfiguration>(
-                        JsonConfiguration.class);
-                break;
-            case YAML:
-                builder = new ReloadingFileBasedConfigurationBuilder<FileBasedConfiguration>(
-                        YamlConfiguration.class);
-                break;
-            default:
-                throw new IllegalArgumentException("Configuration type not supported:"+ configType);
-        }
+        ReloadingFileBasedConfigurationBuilder<FileBasedConfiguration> builder = getFileBasedConfigurationReloadingFileBasedConfigurationBuilder(
+                configType);
         builder.configure(new Parameters().fileBased().setURL(url)
                 .setListDelimiterHandler(new DefaultListDelimiterHandler(',')));
         return builder;
@@ -527,31 +508,34 @@ public class ConfigurationUtils {
      */
     public static BasicConfigurationBuilder<FileBasedConfiguration> getConfigurationBuilder(File file,
                                                                                             boolean autoSave) {
-        ReloadingFileBasedConfigurationBuilder<FileBasedConfiguration> builder = null;
+        ReloadingFileBasedConfigurationBuilder<FileBasedConfiguration> builder;
         ConfigurationType configType = ConfigurationUtils.getConfigType(file);
+        builder = getFileBasedConfigurationReloadingFileBasedConfigurationBuilder(configType);
+        builder.configure(new Parameters().fileBased().setFile(file)
+                .setListDelimiterHandler(new DefaultListDelimiterHandler(',')));
+        builder.setAutoSave(autoSave);
+        return builder;
+    }
+
+    private static ReloadingFileBasedConfigurationBuilder<FileBasedConfiguration> getFileBasedConfigurationReloadingFileBasedConfigurationBuilder(
+            ConfigurationType configType) {
+        ReloadingFileBasedConfigurationBuilder<FileBasedConfiguration> builder;
         switch (configType) {
             case PROPERTIES:
-                builder = new ReloadingFileBasedConfigurationBuilder<FileBasedConfiguration>(
-                        PropertiesConfiguration.class);
+                builder = new ReloadingFileBasedConfigurationBuilder<>(PropertiesConfiguration.class);
                 break;
             case XML:
-                builder = new ReloadingFileBasedConfigurationBuilder<FileBasedConfiguration>(
-                        XMLConfiguration.class);
+                builder = new ReloadingFileBasedConfigurationBuilder<>(XMLConfiguration.class);
                 break;
             case JSON:
-                builder = new ReloadingFileBasedConfigurationBuilder<FileBasedConfiguration>(
-                        JsonConfiguration.class);
+                builder = new ReloadingFileBasedConfigurationBuilder<>(JsonConfiguration.class);
                 break;
             case YAML:
-                builder = new ReloadingFileBasedConfigurationBuilder<FileBasedConfiguration>(
-                        YamlConfiguration.class);
+                builder = new ReloadingFileBasedConfigurationBuilder<>(YamlConfiguration.class);
                 break;
             default:
                 throw new IllegalArgumentException("Configuration type not supported:"+ configType);
         }
-        builder.configure(new Parameters().fileBased().setFile(file)
-                .setListDelimiterHandler(new DefaultListDelimiterHandler(',')));
-        builder.setAutoSave(autoSave);
         return builder;
     }
 
@@ -599,7 +583,6 @@ public class ConfigurationUtils {
      * @throws Exception the exception
      */
     public static boolean executeInsertSql(String sql, Object[] params) throws Exception {
-        Collection<String> coll = new ArrayList<>();
         DataSource datasource = ConfigurationDataSource.lookup();
         try (Connection con = datasource.getConnection();
              PreparedStatement stmt = con.prepareStatement(sql)) {
@@ -941,7 +924,7 @@ public class ConfigurationUtils {
         } else if (boolean.class == clazz) {
             return Boolean.FALSE;
         }
-        return new Character((char) 0);
+        return (char) 0;
     }
 
     /**
@@ -1075,7 +1058,7 @@ public class ConfigurationUtils {
         Object obj = ConfigurationUtils
                 .getProperty(ConfigurationRepository.lookup().getConfigurationFor(tenant, namespace), key,
                         processingHints);
-        return (obj == null) ? false : ConfigurationUtils.isCollection(obj.toString());
+        return (obj != null) && ConfigurationUtils.isCollection(obj.toString());
     }
 
     /**