forked from D-Net/dnet-hadoop
97 lines
3.7 KiB
Java
97 lines
3.7 KiB
Java
package eu.dnetlib.dhp.application;
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import com.fasterxml.jackson.databind.ObjectMapper;
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import java.io.ByteArrayInputStream;
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import java.io.ByteArrayOutputStream;
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import java.io.Serializable;
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import java.io.StringWriter;
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import java.util.*;
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import java.util.zip.GZIPInputStream;
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import java.util.zip.GZIPOutputStream;
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import org.apache.commons.cli.*;
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import org.apache.commons.codec.binary.Base64;
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import org.apache.commons.io.IOUtils;
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public class ArgumentApplicationParser implements Serializable {
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private final Options options = new Options();
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private final Map<String, String> objectMap = new HashMap<>();
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private final List<String> compressedValues = new ArrayList<>();
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public ArgumentApplicationParser(final String json_configuration) throws Exception {
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final ObjectMapper mapper = new ObjectMapper();
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final OptionsParameter[] configuration =
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mapper.readValue(json_configuration, OptionsParameter[].class);
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createOptionMap(configuration);
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}
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public ArgumentApplicationParser(final OptionsParameter[] configuration) {
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createOptionMap(configuration);
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}
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private void createOptionMap(final OptionsParameter[] configuration) {
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Arrays.stream(configuration)
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.map(
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conf -> {
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final Option o =
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new Option(
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conf.getParamName(), true, conf.getParamDescription());
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o.setLongOpt(conf.getParamLongName());
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o.setRequired(conf.isParamRequired());
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if (conf.isCompressed()) {
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compressedValues.add(conf.getParamLongName());
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}
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return o;
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})
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.forEach(options::addOption);
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// HelpFormatter formatter = new HelpFormatter();
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// formatter.printHelp("myapp", null, options, null, true);
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}
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public static String decompressValue(final String abstractCompressed) {
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try {
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byte[] byteArray = Base64.decodeBase64(abstractCompressed.getBytes());
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GZIPInputStream gis = new GZIPInputStream(new ByteArrayInputStream(byteArray));
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final StringWriter stringWriter = new StringWriter();
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IOUtils.copy(gis, stringWriter);
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return stringWriter.toString();
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} catch (Throwable e) {
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System.out.println("Wrong value to decompress:" + abstractCompressed);
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throw new RuntimeException(e);
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}
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}
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public static String compressArgument(final String value) throws Exception {
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ByteArrayOutputStream out = new ByteArrayOutputStream();
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GZIPOutputStream gzip = new GZIPOutputStream(out);
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gzip.write(value.getBytes());
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gzip.close();
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return java.util.Base64.getEncoder().encodeToString(out.toByteArray());
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}
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public void parseArgument(final String[] args) throws Exception {
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CommandLineParser parser = new BasicParser();
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CommandLine cmd = parser.parse(options, args);
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Arrays.stream(cmd.getOptions())
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.forEach(
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it ->
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objectMap.put(
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it.getLongOpt(),
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compressedValues.contains(it.getLongOpt())
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? decompressValue(it.getValue())
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: it.getValue()));
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}
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public String get(final String key) {
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return objectMap.get(key);
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}
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public Map<String, String> getObjectMap() {
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return objectMap;
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}
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}
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