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FileLogger
public
class
FileLogger
extends BaseStreamLogger<SizeLimitedOutputStream>
用于将日志消息定向到文件和标准输出的 ILeveledLogOutput。
摘要
受保护的方法 |
|---|
void
|
init(String logPrefix, String fileSuffix)
init() 的替代方案，我们可以在此处指定文件名和后缀。
|
公共构造函数
FileLogger
public FileLogger ()
公共方法
closeLog
public void closeLog ()
getMaxLogSizeMbytes
public long getMaxLogSizeMbytes ()
返回日志的大小上限（以兆字节 [MB] 为单位）。
受保护的方法
init
protected void init (String logPrefix,
String fileSuffix)
init() 的替代方案，我们可以在此处指定文件名和后缀。
| 参数 |
|---|
logPrefix |
String：日志记录文件名（不带扩展名）。 |
fileSuffix |
String：日志记录文件的扩展名。 |
本页面上的内容和代码示例受内容许可部分所述许可的限制。Java 和 OpenJDK 是 Oracle 和/或其关联公司的注册商标。
最后更新时间 (UTC)：2025-07-27。
[[["易于理解","easyToUnderstand","thumb-up"],["解决了我的问题","solvedMyProblem","thumb-up"],["其他","otherUp","thumb-up"]],[["没有我需要的信息","missingTheInformationINeed","thumb-down"],["太复杂/步骤太多","tooComplicatedTooManySteps","thumb-down"],["内容需要更新","outOfDate","thumb-down"],["翻译问题","translationIssue","thumb-down"],["示例/代码问题","samplesCodeIssue","thumb-down"],["其他","otherDown","thumb-down"]],["最后更新时间 (UTC)：2025-07-27。"],[],[],null,["# FileLogger\n==========\n\n\n`\npublic\n\n\nclass\nFileLogger\n`\n\n\n`\n\n\n`\n\n`\n\n\n`\n\n`\n\nextends `[BaseStreamLogger](../../../../../../reference/tradefed/com/android/tradefed/log/BaseStreamLogger.html)`\u003c`[SizeLimitedOutputStream](../../../../../../reference/tradefed/com/android/tradefed/util/SizeLimitedOutputStream.html)`\u003e\n\n\n`\n\n`\n\n\n`\n\n|---|---|---|-------------------------------------|\n| java.lang.Object ||||\n| ↳ | [com.android.tradefed.log.BaseLeveledLogOutput](../../../../../../reference/tradefed/com/android/tradefed/log/BaseLeveledLogOutput.html) |||\n| | ↳ | [com.android.tradefed.log.BaseStreamLogger](../../../../../../reference/tradefed/com/android/tradefed/log/BaseStreamLogger.html)\\\u003c[com.android.tradefed.util.SizeLimitedOutputStream](../../../../../../reference/tradefed/com/android/tradefed/util/SizeLimitedOutputStream.html)\\\u003e ||\n| | | ↳ | com.android.tradefed.log.FileLogger |\n\n|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|\n| Known direct subclasses [HistoryLogger](../../../../../../reference/tradefed/com/android/tradefed/log/HistoryLogger.html) |---------------------------------------------------------------------------------------------------|-------------------------------------------------------------------------| | [HistoryLogger](../../../../../../reference/tradefed/com/android/tradefed/log/HistoryLogger.html) | TF History Logger, special log that contains only some specific events. | |\n\n\u003cbr /\u003e\n\n*** ** * ** ***\n\nA [ILeveledLogOutput](../../../../../../reference/tradefed/com/android/tradefed/log/ILeveledLogOutput.html) that directs log messages to a file and to stdout.\n\nSummary\n-------\n\n| ### Public constructors ||\n|------------------------------------------------------------------------------------------------------------------|---|\n| ` `[FileLogger](../../../../../../reference/tradefed/com/android/tradefed/log/FileLogger.html#FileLogger())`() ` |\n\n| ### Public methods ||\n|-----------------------------------------------------------------------------------------------------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|\n| ` `[ILeveledLogOutput](../../../../../../reference/tradefed/com/android/tradefed/log/ILeveledLogOutput.html) | ` `[clone](../../../../../../reference/tradefed/com/android/tradefed/log/FileLogger.html#clone())`() ` Creates a new [FileLogger](../../../../../../reference/tradefed/com/android/tradefed/log/FileLogger.html) with the same log level settings as the current object. |\n| ` void` | ` `[closeLog](../../../../../../reference/tradefed/com/android/tradefed/log/FileLogger.html#closeLog())`() ` |\n| ` `[InputStreamSource](../../../../../../reference/tradefed/com/android/tradefed/result/InputStreamSource.html) | ` `[getLog](../../../../../../reference/tradefed/com/android/tradefed/log/FileLogger.html#getLog())`() ` |\n| ` long` | ` `[getMaxLogSizeMbytes](../../../../../../reference/tradefed/com/android/tradefed/log/FileLogger.html#getMaxLogSizeMbytes())`() ` Returns the max log size of the log in MBytes. |\n| ` void` | ` `[init](../../../../../../reference/tradefed/com/android/tradefed/log/FileLogger.html#init())`() ` |\n\n| ### Protected methods ||\n|---------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|\n| ` void` | ` `[init](../../../../../../reference/tradefed/com/android/tradefed/log/FileLogger.html#init(java.lang.String,%20java.lang.String))`(String logPrefix, String fileSuffix) ` Alternative to [init()](../../../../../../reference/tradefed/com/android/tradefed/log/FileLogger.html#init()) where we can specify the file name and suffix. |\n\nPublic constructors\n-------------------\n\n### FileLogger\n\n```\npublic FileLogger ()\n```\n\n\u003cbr /\u003e\n\n\u003cbr /\u003e\n\nPublic methods\n--------------\n\n### clone\n\n```\npublic ILeveledLogOutput clone ()\n```\n\nCreates a new [FileLogger](../../../../../../reference/tradefed/com/android/tradefed/log/FileLogger.html) with the same log level settings as the current object.\n\n\u003cbr /\u003e\n\nDoes not copy underlying log file content (ie the clone's log data will be written to a new file.)\n\n\u003cbr /\u003e\n\n\u003cbr /\u003e\n\n| Returns ||\n|-----------------------------------------------------------------------------------------------------------|--------|\n| [ILeveledLogOutput](../../../../../../reference/tradefed/com/android/tradefed/log/ILeveledLogOutput.html) | \u003cbr /\u003e |\n\n### closeLog\n\n```\npublic void closeLog ()\n```\n\n\u003cbr /\u003e\n\n\u003cbr /\u003e\n\n### getLog\n\n```\npublic InputStreamSource getLog ()\n```\n\n\u003cbr /\u003e\n\n\u003cbr /\u003e\n\n| Returns ||\n|--------------------------------------------------------------------------------------------------------------|--------|\n| [InputStreamSource](../../../../../../reference/tradefed/com/android/tradefed/result/InputStreamSource.html) | \u003cbr /\u003e |\n\n### getMaxLogSizeMbytes\n\n```\npublic long getMaxLogSizeMbytes ()\n```\n\nReturns the max log size of the log in MBytes.\n\n\u003cbr /\u003e\n\n| Returns ||\n|--------|--------|\n| `long` | \u003cbr /\u003e |\n\n### init\n\n```\npublic void init ()\n```\n\n\u003cbr /\u003e\n\n\u003cbr /\u003e\n\nProtected methods\n-----------------\n\n### init\n\n```\nprotected void init (String logPrefix, \n String fileSuffix)\n```\n\nAlternative to [init()](../../../../../../reference/tradefed/com/android/tradefed/log/FileLogger.html#init()) where we can specify the file name and suffix.\n\n\u003cbr /\u003e\n\n| Parameters ||\n|--------------|----------------------------------------------------------------|\n| `logPrefix` | `String`: the file name where to log without extension. \u003cbr /\u003e |\n| `fileSuffix` | `String`: the extension of the file where to log. \u003cbr /\u003e |"]]
