Add helper class to retrive network logger

Instead of defining static string variable inside Topic class let's
create helper class for getting specific loggers.

Issue-ID: POLICY-1486
Change-Id: Ic1f07466e1ab6abcc00098e617f0e82da19e852d
Signed-off-by: Krzysztof Opasiak <k.opasiak@samsung.com>

2 files changed, 91 insertions, 0 deletions

diff --git a/utils/src/main/java/org/onap/policy/common/utils/slf4j/LoggerFactoryWrapper.java b/utils/src/main/java/org/onap/policy/common/utils/slf4j/LoggerFactoryWrapper.java
new file mode 100644
index 00000000..8f32b3bb
--- /dev/null
+++ b/utils/src/main/java/org/onap/policy/common/utils/slf4j/LoggerFactoryWrapper.java
@@ -0,0 +1,39 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * ONAP Policy Engine - Common Modules
+ * ================================================================================
+ * Copyright (C) 2019 Samsung Electronics. All rights reserved.
+ * ================================================================================
+ * 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.
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.policy.common.utils.slf4j;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+/**
+ * Helper class to retrive particular types of loggers without storing the logger name everywhere in ths code.
+ */
+public class LoggerFactoryWrapper {
+
+    /**
+     * Get Network Logger.
+     *
+     * @return logger instance
+     */
+    public static Logger getNetworkLogger() {
+        return LoggerFactory.getLogger("network");
+    }
+}
diff --git a/utils/src/test/java/org/onap/policy/common/utils/slf4j/LoggerFactoryWrapperTest.java b/utils/src/test/java/org/onap/policy/common/utils/slf4j/LoggerFactoryWrapperTest.java
new file mode 100644
index 00000000..dbe2e671
--- /dev/null
+++ b/utils/src/test/java/org/onap/policy/common/utils/slf4j/LoggerFactoryWrapperTest.java
@@ -0,0 +1,52 @@
+/*
+ * ============LICENSE_START=======================================================
+ * ONAP Policy Engine - Common Modules
+ * ================================================================================
+ * Copyright (C) 2019 Samsung Electronics. All rights reserved.
+ * ================================================================================
+ * 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.
+ * ============LICENSE_END=========================================================
+ */
+
+
+package org.onap.policy.common.utils.slf4j;
+
+import static org.junit.Assert.assertSame;
+import static org.mockito.Mockito.mock;
+
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+
+import org.powermock.api.mockito.PowerMockito;
+import org.powermock.core.classloader.annotations.PrepareForTest;
+import org.powermock.modules.junit4.PowerMockRunner;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+
+@RunWith(PowerMockRunner.class)
+@PrepareForTest(LoggerFactory.class)
+public class LoggerFactoryWrapperTest {
+    @Test
+    public void test_get_network_logger() {
+        String netLoggerName = "network";
+        Logger mockLogger = mock(Logger.class);
+
+        PowerMockito.mockStatic(LoggerFactory.class);
+
+        PowerMockito.when(LoggerFactory.getLogger(netLoggerName)).thenReturn(mockLogger);
+        assertSame(LoggerFactoryWrapper.getNetworkLogger(), mockLogger);
+    }
+}