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/*-
* ============LICENSE_START=======================================================
* Copyright (C) 2021 Nokia.
* ================================================================================
* 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.
*
* SPDX-License-Identifier: Apache-2.0
* ============LICENSE_END=========================================================
*/
package org.onap.dcaegen2.services.pmmapper.config;
import java.util.Optional;
import org.onap.dcaegen2.services.pmmapper.exceptions.EnvironmentConfigException;
import org.onap.logging.ref.slf4j.ONAPLogAdapter;
import org.slf4j.LoggerFactory;
/**
* Provides external configuration for files processing
*
*/
public class FilesProcessingConfig {
private static final String ENV_LIMIT_RATE = "PROCESSING_LIMIT_RATE";
private static final int DEFAULT_LIMIT_RATE = 1;
private static final ONAPLogAdapter logger = new ONAPLogAdapter(LoggerFactory.getLogger(FilesProcessingConfig.class));
private EnvironmentReader environmentReader;
/**
* Creates a FilesProcessingConfig
*/
public FilesProcessingConfig(EnvironmentReader environmentReader) {
this.environmentReader = environmentReader;
}
/**
* Provides reactor limit rate value from environment variable.
* @returns value of limit rate
* @throws EnvironmentConfigException
*/
public int getLimitRate() throws EnvironmentConfigException {
logger.unwrap().info("Trying to read " + ENV_LIMIT_RATE + " env.");
try {
return Optional.ofNullable(environmentReader.getVariable(ENV_LIMIT_RATE))
.map(this::parseIntegerValue)
.orElseGet(this::getDefaultLimitRate);
} catch (NumberFormatException exception) {
throw new EnvironmentConfigException(
ENV_LIMIT_RATE + " environment variable has incorrect value.\n"
, exception);
}
}
private Integer parseIntegerValue(String val) throws NumberFormatException {
Integer value = Integer.valueOf(val);
logger.unwrap().info(ENV_LIMIT_RATE + " value is: " + value);
return value;
}
private int getDefaultLimitRate() {
logger.unwrap().info(ENV_LIMIT_RATE + " env not present. Setting limit rate to default value: " + DEFAULT_LIMIT_RATE);
return DEFAULT_LIMIT_RATE;
}
}
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