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/*-
* ============LICENSE_START=======================================================
* ONAP CLAMP
* ================================================================================
* Copyright (C) 2017-2018 AT&T Intellectual Property. All rights
* reserved.
* ================================================================================
* Modifications Copyright (c) 2019 Samsung
* ================================================================================
* 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.policy.clamp.clds.config;
import com.google.gson.JsonParseException;
import java.io.IOException;
import java.io.InputStream;
import java.nio.charset.StandardCharsets;
import org.apache.commons.io.IOUtils;
import org.onap.policy.clamp.authorization.CldsUser;
import org.onap.policy.clamp.clds.exception.CldsUsersException;
import org.onap.policy.clamp.clds.util.JsonUtils;
public class CldsUserJsonDecoder {
private CldsUserJsonDecoder() {
}
/**
* This method decodes the JSON file provided to a CldsUser Array. The stream is
* closed after this call, this is not possible to reuse it.
*
* @param cldsUsersFile
* The inputStream containing the users json file
* @return CldsUser[] Array containing a list of the user defined in the JSON
* file
*/
public static CldsUser[] decodeJson(InputStream cldsUsersFile) {
try {
return decodeJson(IOUtils.toString(cldsUsersFile, StandardCharsets.UTF_8.name()));
} catch (IOException e) {
throw new CldsUsersException("Exception occurred during the decoding of the clds-users.json", e);
}
}
/**
* This method decodes the JSON string to a CldsUser Array.
*
* @param cldsUsersString JSON string
* @return CldsUser[] Array containing a list of the user defined in the JSON
*/
public static CldsUser[] decodeJson(String cldsUsersString) {
try {
// the ObjectMapper readValue method closes the stream no need to do
// it
return JsonUtils.GSON.fromJson(cldsUsersString, CldsUser[].class);
} catch (JsonParseException e) {
throw new CldsUsersException("Exception occurred during the decoding of the clds-users.json", e);
}
}
}
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