
com.yahoo.container.handler.LogHandler Maven / Gradle / Ivy
// Copyright 2018 Yahoo Holdings. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.container.handler;
import com.google.inject.Inject;
import com.yahoo.container.core.LogHandlerConfig;
import com.yahoo.container.jdisc.HttpRequest;
import com.yahoo.container.jdisc.HttpResponse;
import com.yahoo.container.jdisc.ThreadedHttpRequestHandler;
import java.io.OutputStream;
import java.time.Instant;
import java.util.Optional;
import java.util.concurrent.Executor;
public class LogHandler extends ThreadedHttpRequestHandler {
private final LogReader logReader;
@Inject
public LogHandler(Executor executor, LogHandlerConfig config) {
this(executor, new LogReader(config.logDirectory(), config.logPattern()));
}
LogHandler(Executor executor, LogReader logReader) {
super(executor);
this.logReader = logReader;
}
@Override
public HttpResponse handle(HttpRequest request) {
Instant from = Optional.ofNullable(request.getProperty("from"))
.map(Long::valueOf).map(Instant::ofEpochMilli).orElse(Instant.MIN);
Instant to = Optional.ofNullable(request.getProperty("to"))
.map(Long::valueOf).map(Instant::ofEpochMilli).orElse(Instant.MAX);
return new HttpResponse(200) {
{
headers().add("Content-Encoding", "gzip");
}
@Override
public void render(OutputStream outputStream) {
logReader.writeLogs(outputStream, from, to);
}
};
}
}
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