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摘要: 嵌套 | 字段 | 构造方法 | 方法 | 详细信息: 字段 | 构造方法 | 方法 |
java.lang.Object org.apache.log4j.AppenderSkeleton com.taobao.metamorphosis.client.extension.log4j.StreamAppender com.taobao.metamorphosis.client.extension.log4j.FileStreamAppender
public class FileStreamAppender
字段摘要 | |
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protected boolean |
bufferedIO
Do we do bufferedIO? |
protected int |
bufferSize
Determines the size of IO buffer be. |
protected boolean |
fileAppend
Controls file truncatation. |
protected String |
fileName
The name of the log file. |
从类 com.taobao.metamorphosis.client.extension.log4j.StreamAppender 继承的字段 |
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connectionPool, encodeType, immediateFlush, messageSessionFactory, out, producer, topic, zkConfig |
从类 org.apache.log4j.AppenderSkeleton 继承的字段 |
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closed, errorHandler, headFilter, layout, name, tailFilter, threshold |
构造方法摘要 | |
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FileStreamAppender()
The default constructor does not do anything. |
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FileStreamAppender(org.apache.log4j.Layout layout,
String filename)
Instantiate a FileAppender and open the file designated by filename . |
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FileStreamAppender(org.apache.log4j.Layout layout,
String filename,
boolean append)
Instantiate a FileAppender and open the file designated by filename . |
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FileStreamAppender(org.apache.log4j.Layout layout,
String filename,
boolean append,
boolean bufferedIO,
int bufferSize)
Instantiate a FileAppender and open the file designated by
filename . |
方法摘要 | |
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void |
activateOptions()
If the value of File is not null , then
setFile(java.lang.String) is called with the values of File and
Append properties. |
protected void |
closeFile()
Closes the previously opened file. |
boolean |
getAppend()
Returns the value of the Append option. |
boolean |
getBufferedIO()
Get the value of the BufferedIO option. |
int |
getBufferSize()
Get the size of the IO buffer. |
String |
getFile()
Returns the value of the File option. |
protected void |
reset()
Close any previously opened file and call the parent's reset
. |
void |
setAppend(boolean flag)
The Append option takes a boolean value. |
void |
setBufferedIO(boolean bufferedIO)
The BufferedIO option takes a boolean value. |
void |
setBufferSize(int bufferSize)
Set the size of the IO buffer. |
void |
setFile(String file)
The File property takes a string value which should be the name of the file to append to. |
void |
setFile(String fileName,
boolean append,
boolean bufferedIO,
int bufferSize)
Sets and opens the file where the log output will go. |
从类 com.taobao.metamorphosis.client.extension.log4j.StreamAppender 继承的方法 |
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append, checkEntryConditions, close, closeWriter, getEncodeType, getImmediateFlush, getTopic, requiresLayout, setEncodeType, setImmediateFlush, setName, setTopic, setZkConnect, subAppend, writeFooter, writeHeader |
从类 org.apache.log4j.AppenderSkeleton 继承的方法 |
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addFilter, clearFilters, doAppend, finalize, getErrorHandler, getFilter, getFirstFilter, getLayout, getName, getThreshold, isAsSevereAsThreshold, setErrorHandler, setLayout, setThreshold |
从类 java.lang.Object 继承的方法 |
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clone, equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
字段详细信息 |
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protected boolean fileAppend
true
, meaning that by default a FileAppender
will append to an existing file and not truncate it.
This option is meaningful only if the FileAppender opens the file.
protected String fileName
protected boolean bufferedIO
protected int bufferSize
构造方法详细信息 |
---|
public FileStreamAppender()
public FileStreamAppender(org.apache.log4j.Layout layout, String filename, boolean append, boolean bufferedIO, int bufferSize) throws IOException
FileAppender
and open the file designated by
filename
. The opened filename will become the output
destination for this appender.
If the append
parameter is true, the file will be appended
to. Otherwise, the file designated by filename
will be
truncated before being opened.
If the bufferedIO
parameter is true
, then
buffered IO will be used to write to the output file.
IOException
public FileStreamAppender(org.apache.log4j.Layout layout, String filename, boolean append) throws IOException
filename
. The opened filename will become the output
destination for this appender.
If the append
parameter is true, the file will be appended
to. Otherwise, the file designated by filename
will be
truncated before being opened.
IOException
public FileStreamAppender(org.apache.log4j.Layout layout, String filename) throws IOException
filename
. The opened filename will become the output
destination for this appender.
The file will be appended to.
IOException
方法详细信息 |
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public void setFile(String file)
Note that the special values "System.out" or "System.err" are no longer honored.
Note: Actual opening of the file is made when activateOptions()
is
called, not when the options are set.
public boolean getAppend()
public String getFile()
public void activateOptions()
null
, then
setFile(java.lang.String)
is called with the values of File and
Append properties.
org.apache.log4j.spi.OptionHandler
中的 activateOptions
StreamAppender
中的 activateOptions
protected void closeFile()
public boolean getBufferedIO()
BufferedIO will significatnly increase performance on heavily loaded systems.
public int getBufferSize()
public void setAppend(boolean flag)
true
by default. If true, then File
will be
opened in append mode by setFile
(see above). Otherwise,
setFile
will open File
in truncate mode.
Note: Actual opening of the file is made when activateOptions()
is
called, not when the options are set.
public void setBufferedIO(boolean bufferedIO)
false
by default. If true, then File
will be
opened and the resulting Writer
wrapped around a
BufferedWriter
.
BufferedIO will significatnly increase performance on heavily loaded
systems.
public void setBufferSize(int bufferSize)
public void setFile(String fileName, boolean append, boolean bufferedIO, int bufferSize) throws IOException
Sets and opens the file where the log output will go. The specified file must be writable.
If there was already an opened file, then the previous file is closed first.
Do not use this method directly. To configure a FileAppender or one of its subclasses, set its properties one by one and then call activateOptions.
fileName
- The path to the log file.append
- If true will append to fileName. Otherwise will truncate
fileName.
IOException
protected void reset()
reset
.
StreamAppender
中的 reset
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上一个类 下一个类 | 框架 无框架 | |||||||||
摘要: 嵌套 | 字段 | 构造方法 | 方法 | 详细信息: 字段 | 构造方法 | 方法 |