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/*
* ============LICENSE_START=======================================================
* PNF-REGISTRATION-HANDLER
* ================================================================================
* Copyright (C) 2018 NOKIA 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.dcaegen2.services.prh.configuration;
import com.google.gson.*;
import org.onap.dcaegen2.services.prh.config.AAIClientConfiguration;
import org.onap.dcaegen2.services.prh.config.DmaapConsumerConfiguration;
import org.onap.dcaegen2.services.prh.config.DmaapPublisherConfiguration;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.boot.context.properties.EnableConfigurationProperties;
import org.springframework.context.annotation.Configuration;
import javax.validation.constraints.NotEmpty;
import javax.validation.constraints.NotNull;
import java.io.*;
import java.util.ServiceLoader;
/**
* @author <a href="mailto:przemyslaw.wasala@nokia.com">Przemysław Wąsala</a> on 4/9/18
*/
@Configuration
@EnableConfigurationProperties
@ConfigurationProperties("app")
public abstract class PrhAppConfig implements Config {
private static final String CONFIG = "configs";
private static final String AAI = "aai";
private static final String DMAAP = "dmaap";
private static final String AAI_CONFIG = "aaiClientConfiguration";
private static final String DMAAP_PRODUCER = "dmaapProducerConfiguration";
private static final String DMAAP_CONSUMER = "dmaapConsumerConfiguration";
private final Logger logger = LoggerFactory.getLogger(this.getClass());
AAIClientConfiguration aaiClientConfiguration;
DmaapConsumerConfiguration dmaapConsumerConfiguration;
DmaapPublisherConfiguration dmaapPublisherConfiguration;
@NotEmpty
private String filepath;
@Override
public DmaapConsumerConfiguration getDmaapConsumerConfiguration() {
return dmaapConsumerConfiguration;
}
@Override
public AAIClientConfiguration getAAIClientConfiguration() {
return aaiClientConfiguration;
}
@Override
public DmaapPublisherConfiguration getDmaapPublisherConfiguration() {
return dmaapPublisherConfiguration;
}
@Override
public void initFileStreamReader() {
GsonBuilder gsonBuilder = new GsonBuilder();
ServiceLoader.load(TypeAdapterFactory.class).forEach(gsonBuilder::registerTypeAdapterFactory);
JsonParser parser = new JsonParser();
JsonObject jsonObject;
try (InputStream inputStream = getInputStream(filepath)) {
JsonElement rootElement = getJsonElement(parser, inputStream);
if (rootElement.isJsonObject()) {
jsonObject = rootElement.getAsJsonObject();
aaiClientConfiguration = deserializeType(gsonBuilder,
jsonObject.getAsJsonObject(CONFIG).getAsJsonObject(AAI).getAsJsonObject(AAI_CONFIG),
AAIClientConfiguration.class);
dmaapConsumerConfiguration = deserializeType(gsonBuilder,
jsonObject.getAsJsonObject(CONFIG).getAsJsonObject(DMAAP).getAsJsonObject(DMAAP_CONSUMER),
DmaapConsumerConfiguration.class);
dmaapPublisherConfiguration = deserializeType(gsonBuilder,
jsonObject.getAsJsonObject(CONFIG).getAsJsonObject(DMAAP).getAsJsonObject(DMAAP_PRODUCER),
DmaapPublisherConfiguration.class);
}
} catch (IOException e) {
logger.warn("Problem with file loading, file: {}", filepath, e);
} catch (JsonSyntaxException e) {
logger.warn("Problem with Json deserialization", e);
}
}
JsonElement getJsonElement(JsonParser parser, InputStream inputStream) {
return parser.parse(new InputStreamReader(inputStream));
}
private <T> T deserializeType(@NotNull GsonBuilder gsonBuilder, @NotNull JsonObject jsonObject,
@NotNull Class<T> type) {
return gsonBuilder.create().fromJson(jsonObject, type);
}
InputStream getInputStream(@NotNull String filepath) throws IOException {
return new BufferedInputStream(new FileInputStream(filepath));
}
String getFilepath() {
return this.filepath;
}
public void setFilepath(String filepath) {
this.filepath = filepath;
}
}
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