Convert Sparky to Spring-Boot

[aai/sparky-be.git] / sparkybe-onap-service / src / main / java / org / onap / aai / sparky / security / portal / config / RolesConfig.java

diff --git a/sparkybe-onap-service/src/main/java/org/onap/aai/sparky/security/portal/config/RolesConfig.java b/sparkybe-onap-service/src/main/java/org/onap/aai/sparky/security/portal/config/RolesConfig.java
new file mode 100644 (file)
index 0000000..283834c
--- /dev/null
+++ b/sparkybe-onap-service/src/main/java/org/onap/aai/sparky/security/portal/config/RolesConfig.java
@@ -0,0 +1,90 @@
+/**
+ * ============LICENSE_START===================================================
+ * SPARKY (AAI UI service)
+ * ============================================================================
+ * Copyright © 2017 AT&T Intellectual Property.
+ * Copyright © 2017 Amdocs
+ * 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=====================================================
+ *
+ * ECOMP and OpenECOMP are trademarks
+ * and service marks of AT&T Intellectual Property.
+ */
+package org.onap.aai.sparky.security.portal.config;
+
+import java.io.IOException;
+import java.lang.reflect.Type;
+import java.net.URISyntaxException;
+import java.nio.file.Files;
+import java.nio.file.Paths;
+import java.util.Collections;
+import java.util.List;
+
+import org.onap.aai.sparky.viewandinspect.config.SparkyConstants;
+import org.openecomp.portalsdk.core.restful.domain.EcompRole;
+
+import com.google.gson.Gson;
+import com.google.gson.JsonSyntaxException;
+import com.google.gson.reflect.TypeToken;
+
+/**
+ * Provides roles configuration.
+ */
+public class RolesConfig {
+
+  private List<EcompRole> roles;
+
+  private static final Gson GSON = new Gson();
+  private static final String ROLES_CONFIG_FILE = SparkyConstants.ROLES_FILE_LOCATION;
+
+  private RolesConfig() {
+    // Prevent instantiation
+  }
+
+  private static class RolesConfigHelper {
+    private static final RolesConfig INSTANCE = new RolesConfig();
+
+    private RolesConfigHelper() {
+      // Deliberately empty
+    }
+  }
+
+  /**
+   * Get a singleton instance of the configuration.
+   *
+   * @return
+   */
+  public static RolesConfig getInstance() {
+    try {
+      RolesConfigHelper.INSTANCE.load();
+    } catch (Exception e) {
+      throw new ExceptionInInitializerError(e);
+    }
+
+    return RolesConfigHelper.INSTANCE;
+  }
+
+  public List<EcompRole> getRoles() {
+    return roles;
+  }
+
+  private void load() throws JsonSyntaxException, IOException, URISyntaxException {
+    Type collectionType = new TypeToken<List<EcompRole>>() {
+    }.getType();
+
+    roles = Collections.unmodifiableList(GSON
+        .fromJson(new String(Files.readAllBytes(Paths.get(ROLES_CONFIG_FILE))), collectionType));
+  }
+}
\ No newline at end of file