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package dslog;
import java.io.Closeable;
import java.io.IOException;
import java.io.InputStream;
import java.lang.UnsupportedOperationException;
import java.time.Instant;
class DseventsReader implements Closeable {
private final InputStream reader;
public final int version;
public final Instant startTime;
public DseventsReader(InputStream reader) throws IOException {
this.reader = reader;
this.version = Read.i32(reader);
switch (this.version) {
case 0:
throw new UnsupportedOperationException("TODO: DSEVENTS v0 support");
case 1:
case 2:
case 3: // 2016-now
this.startTime = Read.LVTimestamp(reader);
break;
default:
throw new UnsupportedOperationException("DSEVENTS file version ("+this.version+") newer than log reader (3)");
}
}
public static class Event {
public Instant time;
public String message;
}
public Event readEvent() throws IOException{
switch (version) {
case 0:
throw new UnsupportedOperationException("TODO: DSEVENTS v0 support");
case 1:
case 2:
case 3:
return new Event() {{
time = Read.LVTimestamp(reader);
message = Read.LVString(reader);
}};
default:
throw new UnsupportedOperationException("DSEVENTS file version newer than log reader");
}
}
public void close() throws IOException {
reader.close();
}
}
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