Merge "JAVA onboarding of YANG model"

3 files changed, 213 insertions, 0 deletions

diff --git a/cps-ncmp-service/src/main/java/org/onap/cps/ncmp/api/impl/exception/NcmpStartUpException.java b/cps-ncmp-service/src/main/java/org/onap/cps/ncmp/api/impl/exception/NcmpStartUpException.java
new file mode 100644
index 0000000000..7ac26f54fd
--- /dev/null
+++ b/cps-ncmp-service/src/main/java/org/onap/cps/ncmp/api/impl/exception/NcmpStartUpException.java
@@ -0,0 +1,37 @@
+/*
+ *  ============LICENSE_START=======================================================
+ *  Copyright (C) 2023 Nordix Foundation
+ *  ================================================================================
+ *  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.
+ *
+ *  SPDX-License-Identifier: Apache-2.0
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.cps.ncmp.api.impl.exception;
+
+/**
+ * NCMP start up exception.
+ */
+public class NcmpStartUpException extends NcmpException {
+
+    /**
+     * Constructor.
+     *
+     * @param message the error message
+     * @param details the error details
+     */
+    public NcmpStartUpException(final String message, final String details) {
+        super(message, details);
+    }
+}
\ No newline at end of file
diff --git a/cps-ncmp-service/src/main/java/org/onap/cps/ncmp/init/ModelLoader.java b/cps-ncmp-service/src/main/java/org/onap/cps/ncmp/init/ModelLoader.java
new file mode 100644
index 0000000000..6f834b7022
--- /dev/null
+++ b/cps-ncmp-service/src/main/java/org/onap/cps/ncmp/init/ModelLoader.java
@@ -0,0 +1,52 @@
+/*
+ *  ============LICENSE_START=======================================================
+ *  Copyright (C) 2023 Nordix Foundation
+ *  ================================================================================
+ *  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.
+ *
+ *  SPDX-License-Identifier: Apache-2.0
+ *  ============LICENSE_END=========================================================
+ */
+
+package org.onap.cps.ncmp.init;
+
+import java.util.Map;
+import lombok.NonNull;
+import org.springframework.boot.context.event.ApplicationReadyEvent;
+import org.springframework.context.ApplicationListener;
+
+public interface ModelLoader extends ApplicationListener<ApplicationReadyEvent> {
+
+    @Override
+    void onApplicationEvent(@NonNull ApplicationReadyEvent applicationReadyEvent);
+
+    /**
+     * Create schema set.
+     *
+     * @param dataspaceName dataspace name
+     * @param schemaSetName schemaset name
+     * @param yangResourceContentMap yang resource content map
+     * @return true if schema set is created
+     */
+    boolean createSchemaSet(String dataspaceName, String schemaSetName, Map<String, String> yangResourceContentMap);
+
+    /**
+     * Create anchor.
+     *
+     * @param dataspaceName dataspace name
+     * @param schemaSetName schemaset name
+     * @param anchorName anchor name
+     * @return true if anchor is created
+     */
+    boolean createAnchor(String dataspaceName, String schemaSetName, String anchorName);
+}
diff --git a/cps-ncmp-service/src/main/java/org/onap/cps/ncmp/init/SubscriptionModelLoader.java b/cps-ncmp-service/src/main/java/org/onap/cps/ncmp/init/SubscriptionModelLoader.java
new file mode 100644
index 0000000000..6713491e6e
--- /dev/null
+++ b/cps-ncmp-service/src/main/java/org/onap/cps/ncmp/init/SubscriptionModelLoader.java
@@ -0,0 +1,124 @@
+/*
+ *  ============LICENSE_START=======================================================
+ *  Copyright (C) 2023 Nordix Foundation
+ *  ================================================================================
+ *  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.
+ *
+ *  SPDX-License-Identifier: Apache-2.0
+ *  ============LICENSE_END=========================================================
+ */
+
+package org.onap.cps.ncmp.init;
+
+import java.io.InputStream;
+import java.nio.charset.StandardCharsets;
+import java.util.Map;
+import lombok.NonNull;
+import lombok.RequiredArgsConstructor;
+import lombok.extern.slf4j.Slf4j;
+import org.onap.cps.api.CpsAdminService;
+import org.onap.cps.api.CpsModuleService;
+import org.onap.cps.ncmp.api.impl.exception.NcmpStartUpException;
+import org.onap.cps.spi.exceptions.AlreadyDefinedException;
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.context.event.ApplicationReadyEvent;
+import org.springframework.stereotype.Component;
+
+@Slf4j
+@Component
+@RequiredArgsConstructor
+public class SubscriptionModelLoader implements ModelLoader {
+
+    private final CpsAdminService cpsAdminService;
+    private final CpsModuleService cpsModuleService;
+    private static final String SUBSCRIPTION_DATASPACE_NAME = "NCMP-Admin";
+    private static final String SUBSCRIPTION_ANCHOR_NAME = "AVC-Subscriptions";
+    private static final String SUBSCRIPTION_SCHEMASET_NAME = "subscriptions";
+
+    /**
+     * Method calls boarding subscription model when Application is ready.
+     *
+     * @param applicationReadyEvent the event to respond to
+     */
+    @Override
+    public void onApplicationEvent(@NonNull final ApplicationReadyEvent applicationReadyEvent) {
+        try {
+            onboardSubscriptionModel();
+        } catch (final NcmpStartUpException ncmpStartUpException) {
+            log.debug("Onboarding model for NCMP failed: {} ", ncmpStartUpException.getMessage());
+            SpringApplication.exit(applicationReadyEvent.getApplicationContext(), () -> 1);
+        }
+    }
+
+    /**
+     * Method to onboard subscription model for NCMP.
+     */
+    private void onboardSubscriptionModel() {
+        final Map<String, String> yangResourceContentMap = createYangResourceToContentMap();
+        if (!yangResourceContentMap.get("subscription.yang").isEmpty()) {
+            createSchemaSet(SUBSCRIPTION_DATASPACE_NAME, SUBSCRIPTION_SCHEMASET_NAME, yangResourceContentMap);
+            createAnchor(SUBSCRIPTION_DATASPACE_NAME, SUBSCRIPTION_SCHEMASET_NAME, SUBSCRIPTION_ANCHOR_NAME);
+        }
+    }
+
+
+    @Override
+    public boolean createSchemaSet(final String dataspaceName,
+                                final String schemaSetName,
+                                final Map<String, String> yangResourceContentMap) {
+        try {
+            cpsModuleService.createSchemaSet(dataspaceName, schemaSetName, yangResourceContentMap);
+        } catch (final AlreadyDefinedException exception) {
+            log.info("Creating new schema set failed as schema set already exists");
+        } catch (final Exception exception) {
+            log.debug("Creating schema set for subscription model failed: {} ", exception.getMessage());
+            throw new NcmpStartUpException("Creating schema set failed", exception.getMessage());
+        }
+        return true;
+    }
+
+    /**
+     * Create Anchor.
+     *
+     * @param dataspaceName dataspace name
+     * @param schemaSetName schema set name
+     * @param anchorName anchor name
+     */
+    @Override
+    public boolean createAnchor(final String dataspaceName, final String schemaSetName,
+                             final String anchorName) {
+        try {
+            cpsAdminService.createAnchor(dataspaceName, schemaSetName, anchorName);
+        } catch (final AlreadyDefinedException exception) {
+            log.info("Creating new anchor failed as anchor already exists");
+        } catch (final Exception exception) {
+            log.debug("Creating anchor for subscription model failed: {} ", exception.getMessage());
+            throw new NcmpStartUpException("Creating anchor failed", exception.getMessage());
+        }
+        return true;
+    }
+
+    private String getFileContentAsString() {
+        try (InputStream inputStream = ClassLoader.getSystemClassLoader()
+                .getResourceAsStream("model/subscription.yang")) {
+            return new String(inputStream.readAllBytes(), StandardCharsets.UTF_8);
+        } catch (final Exception exception) {
+            log.debug("Onboarding failed as unable to read file: {}", exception.getCause().toString());
+            throw new NcmpStartUpException("Onboarding failed as unable to read file: {}", exception.getMessage());
+        }
+    }
+
+    private Map<String, String> createYangResourceToContentMap() {
+        return Map.of("subscription.yang", getFileContentAsString());
+    }
+}