Introduce caffeine cache

[cps.git] / cps-service / src / main / java / org / onap / cps / api / impl / YangTextSchemaSourceSetCache.java

diff --git a/cps-service/src/main/java/org/onap/cps/api/impl/YangTextSchemaSourceSetCache.java b/cps-service/src/main/java/org/onap/cps/api/impl/YangTextSchemaSourceSetCache.java
new file mode 100644 (file)
index 0000000..af16727
--- /dev/null
+++ b/cps-service/src/main/java/org/onap/cps/api/impl/YangTextSchemaSourceSetCache.java
@@ -0,0 +1,70 @@
+package org.onap.cps.api.impl;
+/*
+ *  ============LICENSE_START=======================================================
+ *  Copyright (C) 2020 Pantheon.tech
+ *  ================================================================================
+ *  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=========================================================
+ */
+
+import com.google.errorprone.annotations.CanIgnoreReturnValue;
+import java.util.Map;
+import org.onap.cps.spi.CpsModulePersistenceService;
+import org.onap.cps.yang.YangTextSchemaSourceSet;
+import org.onap.cps.yang.YangTextSchemaSourceSetBuilder;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.cache.annotation.CacheConfig;
+import org.springframework.cache.annotation.CachePut;
+import org.springframework.cache.annotation.Cacheable;
+import org.springframework.stereotype.Service;
+
+/**
+ * Provides cached YangTextSchemaSourceSet.
+ */
+@Service
+@CacheConfig(cacheNames = {"yangSchema"})
+public class YangTextSchemaSourceSetCache {
+
+    @Autowired
+    private CpsModulePersistenceService cpsModulePersistenceService;
+
+    /**
+     * Cache YangTextSchemaSourceSet.
+     *
+     * @param dataspaceName dataspace name
+     * @param schemaSetName schema set name
+     * @return YangTextSchemaSourceSet
+     */
+    @Cacheable(key = "#p0.concat('-').concat(#p1)")
+    public YangTextSchemaSourceSet get(final String dataspaceName, final String schemaSetName) {
+        final Map<String, String> yangResourceNameToContent =
+                cpsModulePersistenceService.getYangSchemaResources(dataspaceName, schemaSetName);
+        return YangTextSchemaSourceSetBuilder.of(yangResourceNameToContent);
+    }
+
+    /**
+     * Updates cache YangTextSchemaSourceSet.
+     *
+     * @param dataspaceName dataspace name
+     * @param schemaSetName schema set name
+     * @param yangTextSchemaSourceSet yangTextSchemaSourceSet
+     * @return YangTextSchemaSourceSet
+     */
+    @CachePut(key = "#p0.concat('-').concat(#p1)")
+    @CanIgnoreReturnValue
+    public YangTextSchemaSourceSet updateCache(final String dataspaceName, final String schemaSetName,
+            final YangTextSchemaSourceSet yangTextSchemaSourceSet) {
+        return yangTextSchemaSourceSet;
+    }
+}