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/*-
* ============LICENSE_START=======================================================
* ONAP CLAMP
* ================================================================================
* Copyright (C) 2018 AT&T Intellectual Property. 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============================================
* ===================================================================
*
*/
package org.onap.clamp.clds.config.sdc;
import com.att.eelf.configuration.EELFLogger;
import com.att.eelf.configuration.EELFManager;
import com.google.gson.JsonObject;
import java.io.IOException;
import java.io.InputStreamReader;
import java.nio.charset.StandardCharsets;
import java.util.HashMap;
import java.util.Map;
import javax.annotation.PostConstruct;
import org.onap.clamp.clds.exception.sdc.controller.SdcParametersException;
import org.onap.clamp.clds.util.JsonUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.context.ApplicationContext;
import org.springframework.core.io.Resource;
/**
* This class maps the SDC config JSON file. This JSON can have multiple
* sdc-controller config. So the json is loaded in a static way and the instance
* must specify the controller name that it represents.
*/
public class SdcControllersConfiguration {
private static final EELFLogger logger = EELFManager.getInstance().getLogger(SdcControllersConfiguration.class);
public static final String CONTROLLER_SUBTREE_KEY = "sdc-connections";
@Autowired
protected ApplicationContext appContext;
/**
* The file name that will be loaded by Spring.
*/
@Value("${clamp.config.files.sdcController:'classpath:/clds/sdc-controllers-config.json'}")
protected String sdcControllerFile;
/**
* The root of the JSON.
*/
private JsonObject jsonRootNode;
/**
* Loads configuration from SDC controller config file.
*
* @throws IOException IO Exception
*/
@PostConstruct
public void loadConfiguration() throws IOException {
Resource resource = appContext.getResource(sdcControllerFile);
// Try to load json tree
jsonRootNode = JsonUtils.GSON.fromJson(new InputStreamReader(
resource.getInputStream(), StandardCharsets.UTF_8),
JsonObject.class);
}
public SdcSingleControllerConfiguration getSdcSingleControllerConfiguration(String controllerName) {
return getAllDefinedControllers().get(controllerName);
}
/**
* This method reads all Controllers configurations and returns them.
*
* @return A list of controller Names defined in the config
*/
public Map<String, SdcSingleControllerConfiguration> getAllDefinedControllers() {
Map<String, SdcSingleControllerConfiguration> result = new HashMap<>();
if (jsonRootNode.get(CONTROLLER_SUBTREE_KEY) != null) {
jsonRootNode.get(CONTROLLER_SUBTREE_KEY).getAsJsonObject().entrySet().forEach(
entry -> result.put(entry.getKey(),
new SdcSingleControllerConfiguration(entry.getValue().getAsJsonObject(), entry.getKey())));
} else {
throw new SdcParametersException(
CONTROLLER_SUBTREE_KEY + " key not found in the file: " + sdcControllerFile);
}
return result;
}
}
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