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/*
* This file is part of onkostar-plugin-dnpm
*
* Copyright (C) 2023-2026 the original author or authors.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package dev.dnpm.oshelper.atc.services;
import dev.dnpm.oshelper.atc.AgentCode;
import dev.dnpm.oshelper.atc.AtcCode;
import dev.dnpm.oshelper.exceptions.FileParsingException;
import org.apache.commons.csv.CSVFormat;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.stereotype.Service;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.ArrayList;
import java.util.List;
import java.util.Objects;
import java.util.stream.Collectors;
/**
* Service to query for agent codes based on ATC codes file
*
* @author Paul-Christian Volkmer
* @since 2.0.0
*/
public class CsvAgentCodeService implements AgentCodeService {
protected final Logger logger = LoggerFactory.getLogger(this.getClass());
protected final List<AgentCode> codeList = new ArrayList<>();
private static final String ATC_CODE_COLUMN = "ATC-Code";
private static final String ATC_NAME_COLUMN = "ATC-Bedeutung";
private static final String ATC_VERSION_COLUMN = "Version";
public CsvAgentCodeService() {
this.codeList.addAll(parseFile());
}
/**
* Queries source for agents code starting with or name containing query string.
* If size is zero, all available results will be returned.
*
* @param query The query string
* @param size Maximal amount of responses
* @return A list with agent codes
*/
@Override
public List<AgentCode> findAgentCodes(final String query, final int size) {
var resultStream = this.codeList.stream().filter(agentCode ->
agentCode.getCode().toLowerCase().startsWith(query.toLowerCase())
|| agentCode.getName().toLowerCase().contains(query.toLowerCase())
);
if (size > 0) {
return resultStream.limit(size).collect(Collectors.toList());
}
return resultStream.collect(Collectors.toList());
}
protected List<AgentCode> parseFile() {
var result = new ArrayList<AgentCode>();
try {
var inputStream = Objects.requireNonNull(this.getClass().getClassLoader().getResourceAsStream("atc.csv"));
var parser = CSVFormat.RFC4180
.withHeader()
.withDelimiter('\t')
.withIgnoreEmptyLines()
.withSkipHeaderRecord()
.parse(new InputStreamReader(inputStream));
for (var row : parser) {
if (!row.isMapped(ATC_CODE_COLUMN) || !row.isMapped(ATC_NAME_COLUMN)) {
throw new FileParsingException("No CSV column for ATC code or name found");
}
if (row.isMapped(ATC_VERSION_COLUMN)) {
result.add(new AtcCode(row.get(ATC_CODE_COLUMN).trim(), row.get(ATC_NAME_COLUMN), row.get(ATC_VERSION_COLUMN)));
} else {
result.add(new AtcCode(row.get(ATC_CODE_COLUMN).trim(), row.get(ATC_NAME_COLUMN)));
}
}
return result;
} catch (IOException | FileParsingException e) {
logger.warn("Error reading information from ATC codes");
}
logger.info("Found {} ATC codes", result.size());
return result;
}
}
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