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// Copyright Yahoo. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.vespa.hosted.controller.api.integration;
import com.yahoo.log.LogLevel;
import java.util.logging.Level;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.UncheckedIOException;
import java.time.Instant;
import java.time.temporal.ChronoUnit;
import java.util.List;
import java.util.Objects;
import java.util.stream.Collectors;
import static java.nio.charset.StandardCharsets.UTF_8;
import static java.util.Objects.requireNonNull;
/**
* Immutable, simple log entries.
*
* @author jonmv
*/
public class LogEntry {
private final long id;
private final Instant at;
private final Type type;
private final String message;
public LogEntry(long id, Instant at, Type type, String message) {
if (id < 0)
throw new IllegalArgumentException("Id must be non-negative, but was " + id + ".");
this.id = id;
this.at = at;
this.type = requireNonNull(type);
this.message = requireNonNull(message);
}
public long id() {
return id;
}
public Instant at() {
return at;
}
public Type type() {
return type;
}
public String message() {
return message;
}
@SuppressWarnings("deprecation")
public static List<LogEntry> parseVespaLog(InputStream log, Instant from) {
try (BufferedReader reader = new BufferedReader(new InputStreamReader(log, UTF_8))) {
return reader.lines()
.map(line -> line.split("\t"))
.filter(parts -> parts.length == 7)
.map(parts -> new LogEntry(0,
Instant.EPOCH.plus((long) (Double.parseDouble(parts[0]) * 1_000_000), ChronoUnit.MICROS),
typeOf(LogLevel.parse(parts[5])),
parts[1] + '\t' + parts[3] + '\t' + parts[4] + '\n' +
parts[6].replaceAll("\\\\n", "\n")
.replaceAll("\\\\t", "\t")))
.filter(entry -> entry.at().isAfter(from))
.limit(100_000)
.toList();
}
catch (IOException e) {
throw new UncheckedIOException(e);
}
}
@Override
public String toString() {
return "LogEntry{" +
"id=" + id +
", at=" + at.toEpochMilli() +
", type=" + type +
", message='" + message + '\'' +
'}';
}
@Override
public boolean equals(Object o) {
if (this == o) return true;
if (!(o instanceof LogEntry)) return false;
LogEntry entry = (LogEntry) o;
return id == entry.id &&
at.toEpochMilli() == entry.at.toEpochMilli() &&
type == entry.type &&
Objects.equals(message, entry.message);
}
@Override
public int hashCode() {
return Objects.hash(id, at, type, message);
}
@SuppressWarnings("deprecation")
public static Type typeOf(Level level) {
return level.intValue() < Level.INFO.intValue() || level.intValue() == LogLevel.IntValEVENT ? Type.debug
: level.intValue() < Level.WARNING.intValue() ? Type.info
: level.intValue() < Level.SEVERE.intValue() ? Type.warning
: Type.error;
}
/** The type of entry, used for rendering. */
public enum Type {
debug, info, warning, error, html;
}
}
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