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java.lang.Objectlcm.logging.Log
public class Log
A class for reading and writing LCM log files.
Nested Class Summary | |
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static class |
Log.Event
Represents a single received LCM message. |
Constructor Summary | |
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Log(java.lang.String path,
java.lang.String mode)
Opens a log file for reading or writing. |
Method Summary | |
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void |
close()
Closes the log file and releases and system resources used by it. |
java.lang.String |
getPath()
Retrieves the path to the log file. |
double |
getPositionFraction()
|
Log.Event |
readNext()
Reads the next event in the log file |
void |
seekPositionFraction(double frac)
Seek to a position in the log file, specified by a fraction. |
void |
write(Log.Event e)
Writes an event to the log file. |
void |
write(long utime,
java.lang.String channel,
LCMEncodable msg)
A convenience method for write. |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Constructor Detail |
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public Log(java.lang.String path, java.lang.String mode) throws java.io.IOException
path
- the filename to openmode
- Specifies the access mode, must be one of "r", "rw",
"rws", or "rwd". See RandomAccessFile
for more detail.
java.io.IOException
Method Detail |
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public java.lang.String getPath()
public Log.Event readNext() throws java.io.IOException
java.io.EOFException
- if the end of the file has been reached.
java.io.IOException
public double getPositionFraction() throws java.io.IOException
java.io.IOException
public void seekPositionFraction(double frac) throws java.io.IOException
frac
- a number in the range [0, 1)
java.io.IOException
public void write(Log.Event e) throws java.io.IOException
java.io.IOException
public void write(long utime, java.lang.String channel, LCMEncodable msg) throws java.io.IOException
java.io.IOException
public void close() throws java.io.IOException
java.io.IOException
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