Already added loading config for AAI and DMAAP

First of all we have defined a file
in which we have pointer to
configuration file for DMAAP and AAI

After that added UT

Change-Id: I7f9554a019b348a3460f5fa9d8dd3e4002a6686f
Issue-ID: DCAEGEN2-407
Signed-off-by: wasala <przemyslaw.wasala@nokia.com>

2 files changed, 184 insertions, 0 deletions

diff --git a/prh-app-server/src/main/java/org/onap/dcaegen2/services/prh/configuration/AppConfig.java b/prh-app-server/src/main/java/org/onap/dcaegen2/services/prh/configuration/AppConfig.java
new file mode 100644
index 00000000..59cf40da
--- /dev/null
+++ b/prh-app-server/src/main/java/org/onap/dcaegen2/services/prh/configuration/AppConfig.java
@@ -0,0 +1,37 @@
+/*
+ * ============LICENSE_START=======================================================
+ * PNF-REGISTRATION-HANDLER
+ * ================================================================================
+ * Copyright (C) 2018 NOKIA Intellectual Property. 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.dcaegen2.services.prh.configuration;
+
+import org.onap.dcaegen2.services.config.AAIHttpClientConfiguration;
+import org.onap.dcaegen2.services.config.DmaapConsumerConfiguration;
+import org.onap.dcaegen2.services.config.DmaapProducerConfiguration;
+
+/**
+ * @author <a href="mailto:przemyslaw.wasala@nokia.com">Przemysław Wąsala</a> on 4/9/18
+ */
+public interface AppConfig {
+
+    DmaapConsumerConfiguration getDmaapConsumerConfiguration() throws Exception;
+
+    AAIHttpClientConfiguration getAAIHttpClientConfiguration() throws Exception;
+
+    DmaapProducerConfiguration getDmaapProducerConfiguration() throws Exception;
+
+}
diff --git a/prh-app-server/src/main/java/org/onap/dcaegen2/services/prh/configuration/PrhAppConfig.java b/prh-app-server/src/main/java/org/onap/dcaegen2/services/prh/configuration/PrhAppConfig.java
new file mode 100644
index 00000000..57335eff
--- /dev/null
+++ b/prh-app-server/src/main/java/org/onap/dcaegen2/services/prh/configuration/PrhAppConfig.java
@@ -0,0 +1,147 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * PNF-REGISTRATION-HANDLER
+ * ================================================================================
+ * Copyright (C) 2018 NOKIA Intellectual Property. 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.dcaegen2.services.prh.configuration;
+
+import com.fasterxml.jackson.core.JsonParseException;
+import com.fasterxml.jackson.databind.JsonMappingException;
+import com.fasterxml.jackson.databind.JsonNode;
+import com.fasterxml.jackson.databind.ObjectMapper;
+import com.fasterxml.jackson.databind.node.NullNode;
+import com.fasterxml.jackson.databind.node.ObjectNode;
+import com.fasterxml.jackson.datatype.jdk8.Jdk8Module;
+import java.io.BufferedInputStream;
+import java.io.FileInputStream;
+import java.io.FileNotFoundException;
+import java.io.IOException;
+import java.io.InputStream;
+import java.time.LocalDateTime;
+import java.time.format.DateTimeFormatter;
+import java.util.Optional;
+import javax.validation.constraints.NotEmpty;
+import org.onap.dcaegen2.services.config.AAIHttpClientConfiguration;
+import org.onap.dcaegen2.services.config.DmaapConsumerConfiguration;
+import org.onap.dcaegen2.services.config.DmaapProducerConfiguration;
+import org.onap.dcaegen2.services.config.ImmutableAAIHttpClientConfiguration;
+import org.onap.dcaegen2.services.config.ImmutableDmaapConsumerConfiguration;
+import org.onap.dcaegen2.services.config.ImmutableDmaapProducerConfiguration;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.boot.context.properties.ConfigurationProperties;
+import org.springframework.boot.context.properties.EnableConfigurationProperties;
+import org.springframework.context.annotation.Configuration;
+
+/**
+ * @author <a href="mailto:przemyslaw.wasala@nokia.com">Przemysław Wąsala</a> on 4/9/18
+ */
+@Configuration
+@EnableConfigurationProperties
+@ConfigurationProperties("app")
+public class PrhAppConfig implements AppConfig {
+
+    private static final String CONFIG = "configs";
+    private static final String AAI = "aai";
+    private static final String DMAAP = "dmaap";
+    private static final String AAI_CONFIG = "aaiHttpClientConfiguration";
+    private static final String DMAAP_PRODUCER = "dmaapProducerConfiguration";
+    private static final String DMAAP_CONSUMER = "dmaapConsumerConfiguration";
+
+    private static final Logger logger = LoggerFactory.getLogger(PrhAppConfig.class);
+    private static final DateTimeFormatter dateTimeFormatter = DateTimeFormatter.ofPattern("HH:mm:ss");
+
+    private ImmutableAAIHttpClientConfiguration immutableAAIHttpClientConfiguration;
+
+    private ImmutableDmaapConsumerConfiguration immutableDmaapConsumerConfiguration;
+
+    private ImmutableDmaapProducerConfiguration immutableDmaapProducerConfiguration;
+
+    @NotEmpty
+    private String filepath;
+
+    public void initFileStreamReader() {
+
+        ObjectMapper jsonObjectMapper = new ObjectMapper().registerModule(new Jdk8Module());
+        JsonNode jsonNode;
+        try (InputStream inputStream = getInputStream(filepath)) {
+            ObjectNode root = (ObjectNode) jsonObjectMapper.readTree(inputStream);
+            jsonNode = Optional.ofNullable(root.get(CONFIG).get(AAI).get(AAI_CONFIG)).orElse(NullNode.getInstance());
+            immutableAAIHttpClientConfiguration = jsonObjectMapper
+                .treeToValue(jsonNode, ImmutableAAIHttpClientConfiguration.class);
+            jsonNode = Optional.ofNullable(root.get(CONFIG).get(DMAAP).get(DMAAP_CONSUMER))
+                .orElse(NullNode.getInstance());
+            immutableDmaapConsumerConfiguration = jsonObjectMapper
+                .treeToValue(jsonNode, ImmutableDmaapConsumerConfiguration.class);
+            jsonNode = Optional.ofNullable(root.get(CONFIG).get(DMAAP).get(DMAAP_PRODUCER))
+                .orElse(NullNode.getInstance());
+            immutableDmaapProducerConfiguration = jsonObjectMapper
+                .treeToValue(jsonNode, ImmutableDmaapProducerConfiguration.class);
+        } catch (FileNotFoundException e) {
+            logger
+                .error(
+                    "Configuration PrhAppConfig initFileStreamReader()::FileNotFoundException :: Execution Time - {}:{}",
+                    dateTimeFormatter.format(
+                        LocalDateTime.now()), e);
+        } catch (JsonParseException e) {
+            logger
+                .error(
+                    "Configuration PrhAppConfig initFileStreamReader()::JsonParseException :: Execution Time - {}:{}",
+                    dateTimeFormatter.format(
+                        LocalDateTime.now()), e);
+        } catch (JsonMappingException e) {
+            logger
+                .error(
+                    "Configuration PrhAppConfig initFileStreamReader()::JsonMappingException :: Execution Time - {}:{}",
+                    dateTimeFormatter.format(
+                        LocalDateTime.now()), e);
+        } catch (IOException e) {
+            logger
+                .error(
+                    "Configuration PrhAppConfig initFileStreamReader()::IOException :: Execution Time - {}:{}",
+                    dateTimeFormatter.format(
+                        LocalDateTime.now()), e);
+        }
+    }
+
+    InputStream getInputStream(String filepath) throws FileNotFoundException {
+        return new BufferedInputStream(new FileInputStream(filepath));
+    }
+
+    String getFilepath() {
+        return this.filepath;
+    }
+
+    public void setFilepath(String filepath) {
+        this.filepath = filepath;
+    }
+
+    @Override
+    public DmaapConsumerConfiguration getDmaapConsumerConfiguration() {
+        return immutableDmaapConsumerConfiguration;
+    }
+
+    @Override
+    public AAIHttpClientConfiguration getAAIHttpClientConfiguration() {
+        return immutableAAIHttpClientConfiguration;
+    }
+
+    @Override
+    public DmaapProducerConfiguration getDmaapProducerConfiguration() {
+        return immutableDmaapProducerConfiguration;
+    }
+}
\ No newline at end of file