クラス DirectoryScanner
- java.lang.Object
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- com.kazurayam.ant.DirectoryScanner
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- すべての実装されたインタフェース:
FileScanner
public class DirectoryScanner extends java.lang.Object implements FileScanner
Class for scanning a directory for files/directories which match certain criteria.These criteria consist of selectors and patterns which have been specified. With the selectors you can select which files you want to have included. Files which are not selected are excluded. With patterns you can include or exclude files based on their filename.
The idea is simple. A given directory is recursively scanned for all files and directories. Each file/directory is matched against a set of selectors, including special support for matching against filenames with include and and exclude patterns. Only files/directories which match at least one pattern of the include pattern list or other file selector, and don't match any pattern of the exclude pattern list or fail to match against a required selector will be placed in the list of files/directories found.
When no list of include patterns is supplied, "**" will be used, which means that everything will be matched. When no list of exclude patterns is supplied, an empty list is used, such that nothing will be excluded. When no selectors are supplied, none are applied.
The filename pattern matching is done as follows: The name to be matched is split up in path segments. A path segment is the name of a directory or file, which is bounded by
File.separator
('/' under UNIX, '\' under Windows). For example, "abc/def/ghi/xyz.java" is split up in the segments "abc", "def","ghi" and "xyz.java". The same is done for the pattern against which should be matched.The segments of the name and the pattern are then matched against each other. When '**' is used for a path segment in the pattern, it matches zero or more path segments of the name.
There is a special case regarding the use of
File.separator
s at the beginning of the pattern and the string to match:- When a pattern starts with a
File.separator
, the string to match must also start with aFile.separator
. - When a pattern does not start with a
File.separator
, the string to match may not start with aFile.separator
. - When one of the above rules is not obeyed, the string will not match.
When a name path segment is matched against a pattern path segment, the following special characters can be used:
'*' matches zero or more characters
'?' matches one character.Examples:
"**\*.class" matches all .class files/dirs in a directory tree.
"test\a??.java" matches all files/dirs which start with an 'a', then two more characters and then ".java", in a directory called test.
"**" matches everything in a directory tree.
"**\test\**\XYZ*" matches all files/dirs which start with "XYZ" and where there is a parent directory called test (e.g. "abc\test\def\ghi\XYZ123").
Case sensitivity may be turned off if necessary. By default, it is turned on.
Example of usage:
import com.kazurayam.ant.DirectoryScanner; DirectoryScanner ds = new DirectoryScanner(); ds.setBaseDir("build/classes") String[] includes = {"**\\*.class"}; String[] excludes = {"**\\test\\**\\*"}; ds.setIncludes(includes); ds.setExcludes(excludes); ds.scan(); System.out.println("main classes:"); String[] files = ds.getIncludedFiles(); for (int i = 0; i < files.length; i++) { System.out.println(files[i]); }
This will scan a directory "./build/classes" for .class files, but excludes all files in subdirectories of a directory called "test".
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フィールドの概要
フィールド 修飾子とタイプ フィールド 説明 protected java.io.File
basedir
The base directory to be scanned.protected static java.lang.String[]
DEFAULTEXCLUDES
推奨されていません。since 1.6.x.protected java.util.Vector<java.lang.String>
dirsDeselected
The directories which matched at least one include and no excludes but which a selector discarded.protected java.util.Vector<java.lang.String>
dirsExcluded
The directories which matched at least one include and at least one exclude.protected java.util.Vector<java.lang.String>
dirsIncluded
The directories which matched at least one include and no excludes and were selected.protected java.util.Vector<java.lang.String>
dirsNotIncluded
The directories which were found and did not match any includes.static java.lang.String
DOES_NOT_EXIST_POSTFIX
The end of the exception message if something that should be there doesn't exist.protected boolean
errorOnMissingDir
Whether a missing base directory is an error.protected boolean
everythingIncluded
Whether or not everything tested so far has been included.protected java.lang.String[]
excludes
The patterns for the files to be excluded.protected java.util.Vector<java.lang.String>
filesDeselected
The files which matched at least one include and no excludes and which a selector discarded.protected java.util.Vector<java.lang.String>
filesExcluded
The files which matched at least one include and at least one exclude.protected java.util.Vector<java.lang.String>
filesIncluded
The files which matched at least one include and no excludes and were selected.protected java.util.Vector<java.lang.String>
filesNotIncluded
The files which did not match any includes or selectors.protected boolean
haveSlowResults
Whether or not our results were built by a slow scan.protected java.lang.String[]
includes
The patterns for the files to be included.protected boolean
isCaseSensitive
Whether or not the file system should be treated as a case sensitive one.static int
MAX_LEVELS_OF_SYMLINKS
default value formaxLevelsOfSymlinks
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コンストラクタの概要
コンストラクタ コンストラクタ 説明 DirectoryScanner()
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メソッドの概要
すべてのメソッド staticメソッド インスタンス・メソッド concreteメソッド 修飾子とタイプ メソッド 説明 void
addDefaultExcludes()
Add default exclusions to the current exclusions set.protected void
clearResults()
Clear the result caches for a scan.java.io.File
getBasedir()
Return the base directory to be scanned.static java.lang.String[]
getDefaultExcludes()
Get the list of patterns that should be excluded by default.java.lang.String[]
getExcludedDirectories()
Return the names of the directories which matched at least one of the include patterns and at least one of the exclude patterns.java.lang.String[]
getExcludedFiles()
Return the names of the files which matched at least one of the include patterns and at least one of the exclude patterns.java.lang.String[]
getIncludedDirectories()
Return the names of the directories which matched at least one of the include patterns and none of the exclude patterns.int
getIncludedDirsCount()
Return the count of included directories.java.lang.String[]
getIncludedFiles()
Return the names of the files which matched at least one of the include patterns and none of the exclude patterns.int
getIncludedFilesCount()
Return the count of included files.java.lang.String[]
getNotFollowedSymlinks()
Absolute paths of all symbolic links that haven't been followed but would have been followed had followsymlinks been true or maxLevelsOfSymlinks been bigger.java.lang.String[]
getNotIncludedDirectories()
Return the names of the directories which matched none of the include patterns.java.lang.String[]
getNotIncludedFiles()
Return the names of the files which matched none of the include patterns.boolean
isCaseSensitive()
Find out whether include exclude patterns are matched in a case sensitive way.protected boolean
isSelected(java.lang.String name, java.io.File file)
Test whether a file should be selected.protected static boolean
matchPatternStart(java.lang.String pattern, java.lang.String str)
Test whether or not a given path matches the start of a given pattern up to the first "**".static void
resetDefaultExcludes()
Go back to the hardwired default exclude patterns.void
scan()
Scan for files which match at least one include pattern and don't match any exclude patterns.protected void
scandir(java.io.File dir, java.lang.String vpath, boolean fast)
Scan the given directory for files and directories.void
setBasedir(java.io.File basedir)
Set the base directory to be scanned.void
setBasedir(java.lang.String basedir)
Set the base directory to be scanned.void
setCaseSensitive(boolean isCaseSensitive)
Set whether or not include and exclude patterns are matched in a case sensitive way.void
setExcludes(java.lang.String[] excludes)
Set the list of exclude patterns to use.void
setIncludes(java.lang.String[] includes)
Set the list of include patterns to use.protected void
slowScan()
Top level invocation for a slow scan.
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フィールドの詳細
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DEFAULTEXCLUDES
@Deprecated protected static final java.lang.String[] DEFAULTEXCLUDES
推奨されていません。since 1.6.x. Use thegetDefaultExcludes
method instead.Patterns which should be excluded by default.Note that you can now add patterns to the list of default excludes. Added patterns will not become part of this array that has only been kept around for backwards compatibility reasons.
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MAX_LEVELS_OF_SYMLINKS
public static final int MAX_LEVELS_OF_SYMLINKS
default value formaxLevelsOfSymlinks
- 導入されたバージョン:
- Ant 1.8.0
- 関連項目:
- 定数フィールド値
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DOES_NOT_EXIST_POSTFIX
public static final java.lang.String DOES_NOT_EXIST_POSTFIX
The end of the exception message if something that should be there doesn't exist.- 関連項目:
- 定数フィールド値
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basedir
protected java.io.File basedir
The base directory to be scanned.
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includes
protected java.lang.String[] includes
The patterns for the files to be included.
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excludes
protected java.lang.String[] excludes
The patterns for the files to be excluded.
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filesIncluded
protected java.util.Vector<java.lang.String> filesIncluded
The files which matched at least one include and no excludes and were selected.
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filesNotIncluded
protected java.util.Vector<java.lang.String> filesNotIncluded
The files which did not match any includes or selectors.
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filesExcluded
protected java.util.Vector<java.lang.String> filesExcluded
The files which matched at least one include and at least one exclude.
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dirsIncluded
protected java.util.Vector<java.lang.String> dirsIncluded
The directories which matched at least one include and no excludes and were selected.
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dirsNotIncluded
protected java.util.Vector<java.lang.String> dirsNotIncluded
The directories which were found and did not match any includes.
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dirsExcluded
protected java.util.Vector<java.lang.String> dirsExcluded
The directories which matched at least one include and at least one exclude.
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filesDeselected
protected java.util.Vector<java.lang.String> filesDeselected
The files which matched at least one include and no excludes and which a selector discarded.
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dirsDeselected
protected java.util.Vector<java.lang.String> dirsDeselected
The directories which matched at least one include and no excludes but which a selector discarded.
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haveSlowResults
protected boolean haveSlowResults
Whether or not our results were built by a slow scan.
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isCaseSensitive
protected boolean isCaseSensitive
Whether or not the file system should be treated as a case sensitive one.
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errorOnMissingDir
protected boolean errorOnMissingDir
Whether a missing base directory is an error.- 導入されたバージョン:
- Ant 1.7.1
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everythingIncluded
protected boolean everythingIncluded
Whether or not everything tested so far has been included.
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メソッドの詳細
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matchPatternStart
protected static boolean matchPatternStart(java.lang.String pattern, java.lang.String str)
Test whether or not a given path matches the start of a given pattern up to the first "**".This is not a general purpose test and should only be used if you can live with false positives. For example,
pattern=**\a
andstr=b
will yieldtrue
.- パラメータ:
pattern
- The pattern to match against. Must not benull
.str
- The path to match, as a String. Must not benull
.- 戻り値:
- whether or not a given path matches the start of a given pattern up to the first "**".
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getDefaultExcludes
public static java.lang.String[] getDefaultExcludes()
Get the list of patterns that should be excluded by default.- 戻り値:
- An array of
String
based on the current contents of thedefaultExcludes
Set
. - 導入されたバージョン:
- Ant 1.6
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resetDefaultExcludes
public static void resetDefaultExcludes()
Go back to the hardwired default exclude patterns.- 導入されたバージョン:
- Ant 1.6
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setBasedir
public void setBasedir(java.lang.String basedir)
Set the base directory to be scanned. This is the directory which is scanned recursively. All '/' and '\' characters are replaced byFile.separatorChar
, so the separator used need not matchFile.separatorChar
.- 定義:
setBasedir
インタフェース内FileScanner
- パラメータ:
basedir
- The base directory to scan.
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setBasedir
public void setBasedir(java.io.File basedir)
Set the base directory to be scanned. This is the directory which is scanned recursively.- 定義:
setBasedir
インタフェース内FileScanner
- パラメータ:
basedir
- The base directory for scanning.
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getBasedir
public java.io.File getBasedir()
Return the base directory to be scanned. This is the directory which is scanned recursively.- 定義:
getBasedir
インタフェース内FileScanner
- 戻り値:
- the base directory to be scanned.
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isCaseSensitive
public boolean isCaseSensitive()
Find out whether include exclude patterns are matched in a case sensitive way.- 戻り値:
- whether or not the scanning is case sensitive.
- 導入されたバージョン:
- Ant 1.6
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setCaseSensitive
public void setCaseSensitive(boolean isCaseSensitive)
Set whether or not include and exclude patterns are matched in a case sensitive way.- 定義:
setCaseSensitive
インタフェース内FileScanner
- パラメータ:
isCaseSensitive
- whether or not the file system should be regarded as a case sensitive one.
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setIncludes
public void setIncludes(java.lang.String[] includes)
Set the list of include patterns to use. All '/' and '\' characters are replaced byFile.separatorChar
, so the separator used need not matchFile.separatorChar
.When a pattern ends with a '/' or '\', "**" is appended.
- 定義:
setIncludes
インタフェース内FileScanner
- パラメータ:
includes
- A list of include patterns. May benull
, indicating that all files should be included. If a non-null
list is given, all elements must be non-null
.
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setExcludes
public void setExcludes(java.lang.String[] excludes)
Set the list of exclude patterns to use. All '/' and '\' characters are replaced byFile.separatorChar
, so the separator used need not matchFile.separatorChar
.When a pattern ends with a '/' or '\', "**" is appended.
- 定義:
setExcludes
インタフェース内FileScanner
- パラメータ:
excludes
- A list of exclude patterns. May benull
, indicating that no files should be excluded. If a non-null
list is given, all elements must be non-null
.
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scan
public void scan() throws java.lang.IllegalStateException
Scan for files which match at least one include pattern and don't match any exclude patterns. If there are selectors then the files must pass muster there, as well. Scans under basedir, if set; otherwise the include patterns without leading wildcards specify the absolute paths of the files that may be included.- 定義:
scan
インタフェース内FileScanner
- 例外:
java.lang.IllegalStateException
- if the base directory was set incorrectly (i.e. if it doesn't exist or isn't a directory).
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clearResults
protected void clearResults()
Clear the result caches for a scan.
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slowScan
protected void slowScan()
Top level invocation for a slow scan. A slow scan builds up a full list of excluded/included files/directories, whereas a fast scan will only have full results for included files, as it ignores directories which can't possibly hold any included files/directories.Returns immediately if a slow scan has already been completed.
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scandir
protected void scandir(java.io.File dir, java.lang.String vpath, boolean fast)
Scan the given directory for files and directories. Found files and directories are placed in their respective collections, based on the matching of includes, excludes, and the selectors. When a directory is found, it is scanned recursively.- パラメータ:
dir
- The directory to scan. Must not benull
.vpath
- The path relative to the base directory (needed to prevent problems with an absolute path when using dir). Must not benull
.fast
- Whether or not this call is part of a fast scan.- 関連項目:
filesIncluded
,filesNotIncluded
,filesExcluded
,dirsIncluded
,dirsNotIncluded
,dirsExcluded
,slowScan()
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isSelected
protected boolean isSelected(java.lang.String name, java.io.File file)
Test whether a file should be selected.- パラメータ:
name
- the filename to check for selecting.file
- the java.io.File object for this filename.- 戻り値:
false
when the selectors says that the file should not be selected,true
otherwise.
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getIncludedFiles
public java.lang.String[] getIncludedFiles()
Return the names of the files which matched at least one of the include patterns and none of the exclude patterns. The names are relative to the base directory.- 定義:
getIncludedFiles
インタフェース内FileScanner
- 戻り値:
- the names of the files which matched at least one of the include patterns and none of the exclude patterns.
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getIncludedFilesCount
public int getIncludedFilesCount()
Return the count of included files.- 戻り値:
int
.- 導入されたバージョン:
- Ant 1.6.3
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getNotIncludedFiles
public java.lang.String[] getNotIncludedFiles()
Return the names of the files which matched none of the include patterns. The names are relative to the base directory. This involves performing a slow scan if one has not already been completed.- 定義:
getNotIncludedFiles
インタフェース内FileScanner
- 戻り値:
- the names of the files which matched none of the include patterns.
- 関連項目:
slowScan()
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getExcludedFiles
public java.lang.String[] getExcludedFiles()
Return the names of the files which matched at least one of the include patterns and at least one of the exclude patterns. The names are relative to the base directory. This involves performing a slow scan if one has not already been completed.- 定義:
getExcludedFiles
インタフェース内FileScanner
- 戻り値:
- the names of the files which matched at least one of the include patterns and at least one of the exclude patterns.
- 関連項目:
slowScan()
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getIncludedDirectories
public java.lang.String[] getIncludedDirectories()
Return the names of the directories which matched at least one of the include patterns and none of the exclude patterns. The names are relative to the base directory.- 定義:
getIncludedDirectories
インタフェース内FileScanner
- 戻り値:
- the names of the directories which matched at least one of the include patterns and none of the exclude patterns.
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getIncludedDirsCount
public int getIncludedDirsCount()
Return the count of included directories.- 戻り値:
int
.- 導入されたバージョン:
- Ant 1.6.3
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getNotIncludedDirectories
public java.lang.String[] getNotIncludedDirectories()
Return the names of the directories which matched none of the include patterns. The names are relative to the base directory. This involves performing a slow scan if one has not already been completed.- 定義:
getNotIncludedDirectories
インタフェース内FileScanner
- 戻り値:
- the names of the directories which matched none of the include patterns.
- 関連項目:
slowScan()
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getExcludedDirectories
public java.lang.String[] getExcludedDirectories()
Return the names of the directories which matched at least one of the include patterns and at least one of the exclude patterns. The names are relative to the base directory. This involves performing a slow scan if one has not already been completed.- 定義:
getExcludedDirectories
インタフェース内FileScanner
- 戻り値:
- the names of the directories which matched at least one of the include patterns and at least one of the exclude patterns.
- 関連項目:
slowScan()
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getNotFollowedSymlinks
public java.lang.String[] getNotFollowedSymlinks()
Absolute paths of all symbolic links that haven't been followed but would have been followed had followsymlinks been true or maxLevelsOfSymlinks been bigger.- 戻り値:
- sorted array of not followed symlinks
- 導入されたバージョン:
- Ant 1.8.0
- 関連項目:
notFollowedSymlinks
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addDefaultExcludes
public void addDefaultExcludes()
Add default exclusions to the current exclusions set.- 定義:
addDefaultExcludes
インタフェース内FileScanner
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