remove obsolete class

pdb-ui/src/main/java/org/lucares/pdbui/CsvToEntryTransformer.java

@@ -1,80 +0,0 @@
-package org.lucares.pdbui;
-
-import java.io.IOException;
-import java.util.Optional;
-import java.util.regex.Pattern;
-
-import org.apache.commons.lang3.StringUtils;
-import org.lucares.pdb.api.Entry;
-import org.lucares.pdb.api.Tags;
-import org.lucares.pdb.api.TagsBuilder;
-import org.lucares.pdbui.date.FastISODateParser;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-
-// TODO remove?
-public class CsvToEntryTransformer implements LineToEntryTransformer {
-	private static final Logger LOGGER = LoggerFactory.getLogger(CsvToEntryTransformer.class);
-
-	private final String[] headers;
-	private final Pattern splitPattern = Pattern.compile(",");
-	private final FastISODateParser fastISODateParser = new FastISODateParser();
-
-	public CsvToEntryTransformer(final String[] headers) {
-		this.headers = headers;
-	}
-
-	@Override
-	public Optional<Entry> toEntry(final String line) throws IOException {
-		Optional<Entry> result;
-		try {
-			// For future reference:
-			// Pattern.split is actually faster than StringUtils.splitPreserveAll when the
-			// test runs longer.
-			// It seems that the JIT is compiling StringUtils.splitPreserveAll earlier, but
-			// Pattern.split is ending up getting the faster code in the long run.
-			final String[] columns = splitPattern.split(line);
-			if (columns.length == headers.length && columns[0].length() > 0 && columns[0].charAt(0) != '@') {
-
-				result = createEntry(columns);
-
-			} else {
-				result = Optional.empty();
-			}
-		} catch (final Exception e) {
-			LOGGER.error("Failed to create entry from line: {}", line, e);
-			result = Optional.empty();
-		}
-		return result;
-	}
-
-	private Optional<Entry> createEntry(final String[] columns) {
-
-		long epochMilli = 0;
-		long duration = Long.MIN_VALUE;
-		final TagsBuilder tagsBuilder = TagsBuilder.create();
-		for (int i = 0; i < columns.length; i++) {
-
-			switch (headers[i]) {
-			case "@timestamp":
-				epochMilli = fastISODateParser.parseAsEpochMilli(columns[i]);
-				break;
-			case "duration":
-				duration = Long.parseLong(columns[i]);
-				break;
-			default:
-				if (!StringUtils.isBlank(columns[i])) {
-					final int key = Tags.STRING_COMPRESSOR.put(headers[i]);
-					final int value = Tags.STRING_COMPRESSOR.put(columns[i]);
-					tagsBuilder.add(key, value);
-				}
-				break;
-			}
-
-		}
-		final Tags tags = tagsBuilder.build();
-
-		final Entry entry = new Entry(epochMilli, duration, tags);
-		return Optional.of(entry);
-	}
-}