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/**
* ============LICENSE_START=======================================================
* org.onap.aai
* ================================================================================
* Copyright © 2017-2018 AT&T Intellectual Property. All rights reserved.
* Copyright © 2017-2018 Amdocs
* ================================================================================
* 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.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));
}
}
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