com.facebook.buck.event.chrome_trace

Class ChromeTraceWriter

java.lang.Object

com.facebook.buck.event.chrome_trace.ChromeTraceWriter

All Implemented Interfaces:

AutoCloseable

public class ChromeTraceWriter
extends Object
implements AutoCloseable

Type-safe utility to write Chrome trace events to files.

See Also:

ChromeTraceEvent

Constructor Summary

Constructors

Constructor and Description
ChromeTraceWriter(com.fasterxml.jackson.core.JsonGenerator jsonGenerator) Create a writer backed by specified json generator.
ChromeTraceWriter(OutputStream traceStream) Create a writer backed by specified output stream.

Method Summary

Modifier and Type	Method and Description
void	close() Close the underlying json generator.
void	writeEnd() Must be called after all events to properly terminate event stream.
void	writeEvent(ChromeTraceEvent chromeTraceEvent) Write single event.
void	writeStart() Must be called prior to emitting first event to properly initialize stream.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

ChromeTraceWriter

public ChromeTraceWriter(OutputStream traceStream)
                  throws IOException

Create a writer backed by specified output stream.

Throws:

IOException

ChromeTraceWriter

public ChromeTraceWriter(com.fasterxml.jackson.core.JsonGenerator jsonGenerator)

Create a writer backed by specified json generator.

Method Detail

writeEvent

public void writeEvent(ChromeTraceEvent chromeTraceEvent)
                throws IOException

Write single event.

Throws:

IOException

writeStart

public void writeStart()
                throws IOException

Must be called prior to emitting first event to properly initialize stream.

Throws:

IOException

writeEnd

public void writeEnd()
              throws IOException

Must be called after all events to properly terminate event stream.

Throws:

IOException

close

public void close()
           throws IOException

Close the underlying json generator.

Specified by:

close in interface AutoCloseable

Throws:

IOException