LogFileSaver

public class LogFileSaver
extends Object

java.lang.Object
   ↳ com.android.tradefed.result.LogFileSaver


A helper for ITestInvocationListener's that will save log data to a file

Summary

Public constructors

LogFileSaver(IBuildInfo buildInfo, File rootDir, Integer logRetentionDays)

Creates a LogFileSaver.

LogFileSaver(IBuildInfo buildInfo, File rootDir)

Creates a LogFileSaver.

LogFileSaver(File rootDir)

An alternate LogFileSaver constructor that will just use given directory as the log storage directory.

Public methods

File createCompressedLogFile(String dataName, LogDataType origDataType)

Creates an empty file for storing compressed log data.

OutputStream createGZipLogStream(File logFile)

Creates a output stream to write GZIP-compressed data to a file

InputStream createInputStreamFromFile(File logFile)

Helper method to create an input stream to read contents of given log fi

TODO: consider moving this method elsewhere.

File getFileDir()

Get the directory used to store files.

getInvocationLogPathSegments()
File saveAndGZipLogData(String dataName, LogDataType dataType, InputStream dataStream)

Save and compress, if necessary, the log data to a gzip file

File saveAndGZipLogFile(String dataName, LogDataType dataType, File fileToLog)

Save and compress, if necessary, the log data to a gzip file

File saveLogData(String dataName, LogDataType dataType, InputStream dataStream)

Save the log data to a file

File saveLogDataRaw(String dataName, String ext, InputStream dataStream)

Save raw data to a file

File saveLogFile(String dataName, LogDataType dataType, File fileToLog)

Save a given log file

Public constructors

LogFileSaver

public LogFileSaver (IBuildInfo buildInfo, 
                File rootDir, 
                Integer logRetentionDays)

Creates a LogFileSaver.

Construct a unique file system directory in rootDir/branch/build_id/testTag/uniqueDir

If directory creation fails, will use a temp directory.

Parameters
buildInfo IBuildInfo: the IBuildInfo

rootDir File: the root file system path

logRetentionDays Integer: If provided a '.retention' file will be written to log directory containing a timestamp equal to current time + logRetentionDays. External cleanup scripts can use this file to determine when to delete log directories.

LogFileSaver

public LogFileSaver (IBuildInfo buildInfo, 
                File rootDir)

Creates a LogFileSaver.

Construct a unique file system directory in rootDir/branch/build_id/uniqueDir

Parameters
buildInfo IBuildInfo: the IBuildInfo

rootDir File: the root file system path

LogFileSaver

public LogFileSaver (File rootDir)

An alternate LogFileSaver constructor that will just use given directory as the log storage directory.

Public methods

createCompressedLogFile

public File createCompressedLogFile (String dataName, 
                LogDataType origDataType)

Creates an empty file for storing compressed log data.

Parameters
dataName String: a String descriptive name of the data to be stored.

origDataType LogDataType: the type of LogDataType to be stored

Returns
File a ERROR(/File)

Throws
if log file could not be created

createGZipLogStream

public OutputStream createGZipLogStream (File logFile)

Creates a output stream to write GZIP-compressed data to a file

Parameters
logFile File: the ERROR(/File) to write to

Returns
OutputStream the ERROR(/OutputStream) to compress and write data to the file. this stream when complete

Throws
if stream could not be generated

createInputStreamFromFile

public InputStream createInputStreamFromFile (File logFile)

Helper method to create an input stream to read contents of given log fi

TODO: consider moving this method elsewhere. Placed here for now so it e users of this class to mock.

Parameters
logFile File: the ERROR(/File) to read from

Returns
InputStream a buffered ERROR(/InputStream) to read file data. Callers must call this stream when complete

Throws
if stream could not be generated

getFileDir

public File getFileDir ()

Get the directory used to store files.

Returns
File the ERROR(/File) directory

getInvocationLogPathSegments

public  getInvocationLogPathSegments ()

Returns
the unique invocation log path segments.

saveAndGZipLogData

public File saveAndGZipLogData (String dataName, 
                LogDataType dataType, 
                InputStream dataStream)

Save and compress, if necessary, the log data to a gzip file

Parameters
dataName String: a String descriptive name of the data.

dataType LogDataType: the LogDataType of the file. Log data which is a (ie LogDataType#isCompressed() is true)

dataStream InputStream: the ERROR(/InputStream) of the data.

Returns
File the file of the generated data

Throws
if log file could not be generated

saveAndGZipLogFile

public File saveAndGZipLogFile (String dataName, 
                LogDataType dataType, 
                File fileToLog)

Save and compress, if necessary, the log data to a gzip file

Parameters
dataName String: a String descriptive name of the data.

dataType LogDataType: the LogDataType of the file. Log data which is a (ie LogDataType.isCompressed() is true)

fileToLog File: the ERROR(/File) to save

Returns
File the file of the generated data

Throws
if log file could not be generated

saveLogData

public File saveLogData (String dataName, 
                LogDataType dataType, 
                InputStream dataStream)

Save the log data to a file

Parameters
dataName String: a String descriptive name of the data.

dataType LogDataType: the LogDataType of the file.

dataStream InputStream: the ERROR(/InputStream) of the data.

Returns
File the file of the generated data

Throws
if log file could not be generated

saveLogDataRaw

public File saveLogDataRaw (String dataName, 
                String ext, 
                InputStream dataStream)

Save raw data to a file

Parameters
dataName String: a String descriptive name of the data.

ext String: the extension of the date

dataStream InputStream: the ERROR(/InputStream) of the data.

Returns
File the file of the generated data

Throws
if log file could not be generated

saveLogFile

public File saveLogFile (String dataName, 
                LogDataType dataType, 
                File fileToLog)

Save a given log file

Parameters
dataName String: a String descriptive name of the data.

dataType LogDataType: the LogDataType of the file.

fileToLog File: the ERROR(/File) to be logged

Returns
File the file of the generated data

Throws
if log file could not be generated