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-rw-r--r--common/onap-common-configuration-management/onap-configuration-management-api/src/main/java/org/onap/config/api/ConfigurationLoader.java40
-rw-r--r--common/onap-common-configuration-management/onap-configuration-management-api/src/main/java/org/onap/config/api/ConfigurationManager.java11
2 files changed, 41 insertions, 10 deletions
diff --git a/common/onap-common-configuration-management/onap-configuration-management-api/src/main/java/org/onap/config/api/ConfigurationLoader.java b/common/onap-common-configuration-management/onap-configuration-management-api/src/main/java/org/onap/config/api/ConfigurationLoader.java
new file mode 100644
index 0000000000..d84a470e1c
--- /dev/null
+++ b/common/onap-common-configuration-management/onap-configuration-management-api/src/main/java/org/onap/config/api/ConfigurationLoader.java
@@ -0,0 +1,40 @@
+/*
+ * Copyright © 2016-2018 European Support Limited
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.onap.config.api;
+
+import java.util.Iterator;
+import java.util.ServiceLoader;
+
+/**
+ * Loads a Java SPI binding for the configuration service.
+ *
+ * @author evitaliy
+ * @since 29 Oct 2018
+ */
+class ConfigurationLoader {
+
+ static Configuration load() {
+
+ ServiceLoader<ConfigurationManager> loader = ServiceLoader.load(ConfigurationManager.class);
+ Iterator<ConfigurationManager> configManagers = loader.iterator();
+ if (configManagers.hasNext()) {
+ return configManagers.next();
+ }
+
+ throw new IllegalStateException("No binding found for configuration service");
+ }
+}
diff --git a/common/onap-common-configuration-management/onap-configuration-management-api/src/main/java/org/onap/config/api/ConfigurationManager.java b/common/onap-common-configuration-management/onap-configuration-management-api/src/main/java/org/onap/config/api/ConfigurationManager.java
index 0bb33595e5..9f0f8b7113 100644
--- a/common/onap-common-configuration-management/onap-configuration-management-api/src/main/java/org/onap/config/api/ConfigurationManager.java
+++ b/common/onap-common-configuration-management/onap-configuration-management-api/src/main/java/org/onap/config/api/ConfigurationManager.java
@@ -17,22 +17,13 @@
package org.onap.config.api;
import java.util.Collection;
-import java.util.Iterator;
import java.util.Map;
-import java.util.ServiceLoader;
public interface ConfigurationManager extends Configuration {
- Configuration CONFIG = lookup();
+ Configuration CONFIG = ConfigurationLoader.load();
static Configuration lookup() {
-
- if (CONFIG == null) {
- ServiceLoader<ConfigurationManager> loader = ServiceLoader.load(ConfigurationManager.class);
- Iterator<ConfigurationManager> configManagers = loader.iterator();
- return configManagers.hasNext() ? configManagers.next() : null;
- }
-
return CONFIG;
}