Package com.ibm.wala.util.io
Class FileUtil
- java.lang.Object
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- com.ibm.wala.util.io.FileUtil
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public class FileUtil extends java.lang.Object
Simple utilities for accessing files.
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Constructor Summary
Constructors Constructor Description FileUtil()
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Method Summary
All Methods Static Methods Concrete Methods Modifier and Type Method Description static void
copy(java.lang.String srcFileName, java.lang.String destFileName)
This may be a resource leak: http://bugs.sun.com/view_bug.do?bug_id=4724038 We may have to reconsider using nio for this, or apply one of the horrible workarounds listed in the bug report above.static java.io.FileOutputStream
createFile(java.lang.String fileName)
Create aFileOutputStream
corresponding to a particular file name.static void
deleteContents(java.lang.String directory)
delete all files (recursively) in a directory.static java.util.Collection<java.io.File>
listFiles(java.lang.String dir, java.lang.String regex, boolean recurse)
List all the files in a directory that match a regular expressionstatic byte[]
readBytes(java.io.InputStream s)
read fully the contents of s and return a byte array holding the resultstatic void
recurseFiles(java.util.function.Consumer<java.io.File> action, java.util.function.Predicate<java.io.File> filter, java.io.File top)
static void
writeFile(java.io.File f, java.lang.String content)
write string s into file f
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Method Detail
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listFiles
public static java.util.Collection<java.io.File> listFiles(java.lang.String dir, java.lang.String regex, boolean recurse)
List all the files in a directory that match a regular expression- Parameters:
recurse
- recurse to subdirectories?- Throws:
java.lang.IllegalArgumentException
- if dir is null
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copy
public static void copy(java.lang.String srcFileName, java.lang.String destFileName) throws java.io.IOException
This may be a resource leak: http://bugs.sun.com/view_bug.do?bug_id=4724038 We may have to reconsider using nio for this, or apply one of the horrible workarounds listed in the bug report above.- Throws:
java.io.IOException
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deleteContents
public static void deleteContents(java.lang.String directory) throws java.io.IOException
delete all files (recursively) in a directory. This is dangerous. Use with care.- Throws:
java.io.IOException
- if there's a problem deleting some file
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createFile
public static final java.io.FileOutputStream createFile(java.lang.String fileName) throws java.io.IOException
Create aFileOutputStream
corresponding to a particular file name. Delete the existing file if one exists.- Throws:
java.io.IOException
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readBytes
public static byte[] readBytes(java.io.InputStream s) throws java.io.IOException
read fully the contents of s and return a byte array holding the result- Throws:
java.io.IOException
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writeFile
public static void writeFile(java.io.File f, java.lang.String content) throws java.io.IOException
write string s into file f- Throws:
java.io.IOException
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recurseFiles
public static void recurseFiles(java.util.function.Consumer<java.io.File> action, java.util.function.Predicate<java.io.File> filter, java.io.File top)
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