FileSystem

File system utilities.

Initializers

import com.aliyun.ros.cdk.core.FileSystem;
new FileSystem();

Name	Type	Description

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Static Functions

Name	Description
copyDirectory	Copies an entire directory structure.
fingerprint	Produces fingerprint based on the contents of a single file or an entire directory tree.
isEmpty	Checks whether a directory is empty.
mkdtemp	Creates a unique temporary directory in the system temp directory.

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copyDirectory

import com.aliyun.ros.cdk.core.FileSystem;
FileSystem.copyDirectory(java.lang.String srcDir, java.lang.String destDir),FileSystem.copyDirectory(java.lang.String srcDir, java.lang.String destDir, CopyOptions options),FileSystem.copyDirectory(java.lang.String srcDir, java.lang.String destDir, CopyOptions options, java.lang.String rootDir)

Copies an entire directory structure.

srcDir^Required

• Type: java.lang.String

Source directory.

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destDir^Required

• Type: java.lang.String

Destination directory.

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options^Optional

• Type: CopyOptions

options.

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rootDir^Optional

• Type: java.lang.String

Root directory to calculate exclusions from.

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fingerprint

import com.aliyun.ros.cdk.core.FileSystem;
FileSystem.fingerprint(java.lang.String fileOrDirectory),FileSystem.fingerprint(java.lang.String fileOrDirectory, FingerprintOptions options)

Produces fingerprint based on the contents of a single file or an entire directory tree.

Line endings are converted from CRLF to LF.

The fingerprint will also include:

1. An extra string if defined in options.extra.
2. The symlink follow mode value.

fileOrDirectory^Required

• Type: java.lang.String

The directory or file to fingerprint.

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options^Optional

• Type: FingerprintOptions

Fingerprinting options.

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isEmpty

import com.aliyun.ros.cdk.core.FileSystem;
FileSystem.isEmpty(java.lang.String dir)

Checks whether a directory is empty.

dir^Required

• Type: java.lang.String

The directory to check.

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mkdtemp

import com.aliyun.ros.cdk.core.FileSystem;
FileSystem.mkdtemp(java.lang.String prefix)

Creates a unique temporary directory in the system temp directory.

prefix^Required

• Type: java.lang.String

A prefix for the directory name.

Six random characters will be generated and appended behind this prefix.

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Properties

Name	Type	Description
tmpdir	java.lang.String	The real path of the system temp directory.

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tmpdir^Required

public java.lang.String getTmpdir();

• Type: java.lang.String

The real path of the system temp directory.

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