Package org.h2.store.fs.zip
Class FilePathZip
- java.lang.Object
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- org.h2.store.fs.FilePath
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- org.h2.store.fs.zip.FilePathZip
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public class FilePathZip extends FilePath
This is a read-only file system that allows to access databases stored in a .zip or .jar file.
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Constructor Summary
Constructors Constructor Description FilePathZip()
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Method Summary
All Methods Static Methods Instance Methods Concrete Methods Modifier and Type Method Description booleancanWrite()Check if the file is writable.voidcreateDirectory()Create a directory (all required parent directories already exist).booleancreateFile()Create a new file.FilePathcreateTempFile(java.lang.String suffix, boolean inTempDir)Create a new temporary file.voiddelete()Delete a file or directory if it exists.booleanexists()Checks if a file exists.private java.lang.StringgetEntryName()FilePathgetParent()Get the parent directory of a file or directory.FilePathZipgetPath(java.lang.String path)Convert a file to a path.java.lang.StringgetScheme()Get the scheme (prefix) for this file provider.booleanisAbsolute()Check if the file name includes a path.booleanisDirectory()Check if it is a file or a directory.longlastModified()Get the last modified date of a filevoidmoveTo(FilePath newName, boolean atomicReplace)Rename a file if this is allowed.java.util.ArrayList<FilePath>newDirectoryStream()List the files and directories in the given directory.java.io.OutputStreamnewOutputStream(boolean append)Create an output stream to write into the file.java.nio.channels.FileChannelopen(java.lang.String mode)Open a random access file object.private java.util.zip.ZipFileopenZipFile()booleansetReadOnly()Disable the ability to write.longsize()Get the size of a file in bytesFilePathtoRealPath()Normalize a file name.private static java.lang.StringtranslateFileName(java.lang.String fileName)FilePathunwrap()Get the unwrapped file name (without wrapper prefixes if wrapping / delegating file systems are used).-
Methods inherited from class org.h2.store.fs.FilePath
get, getName, newFileChannelOutputStream, newInputStream, register, toString, unregister
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Method Detail
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getPath
public FilePathZip getPath(java.lang.String path)
Description copied from class:FilePathConvert a file to a path. This is similar tojava.nio.file.spi.FileSystemProvider.getPath, but may return an object even if the scheme doesn't match in case of the default file provider.
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createDirectory
public void createDirectory()
Description copied from class:FilePathCreate a directory (all required parent directories already exist).- Specified by:
createDirectoryin classFilePath
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createFile
public boolean createFile()
Description copied from class:FilePathCreate a new file.- Specified by:
createFilein classFilePath- Returns:
- true if creating was successful
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delete
public void delete()
Description copied from class:FilePathDelete a file or directory if it exists. Directories may only be deleted if they are empty.
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exists
public boolean exists()
Description copied from class:FilePathChecks if a file exists.
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lastModified
public long lastModified()
Description copied from class:FilePathGet the last modified date of a file- Specified by:
lastModifiedin classFilePath- Returns:
- the last modified date
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getParent
public FilePath getParent()
Description copied from class:FilePathGet the parent directory of a file or directory.
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isAbsolute
public boolean isAbsolute()
Description copied from class:FilePathCheck if the file name includes a path.- Specified by:
isAbsolutein classFilePath- Returns:
- if the file name is absolute
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unwrap
public FilePath unwrap()
Description copied from class:FilePathGet the unwrapped file name (without wrapper prefixes if wrapping / delegating file systems are used).
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isDirectory
public boolean isDirectory()
Description copied from class:FilePathCheck if it is a file or a directory.- Specified by:
isDirectoryin classFilePath- Returns:
- true if it is a directory
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canWrite
public boolean canWrite()
Description copied from class:FilePathCheck if the file is writable.
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setReadOnly
public boolean setReadOnly()
Description copied from class:FilePathDisable the ability to write.- Specified by:
setReadOnlyin classFilePath- Returns:
- true if the call was successful
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size
public long size()
Description copied from class:FilePathGet the size of a file in bytes
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newDirectoryStream
public java.util.ArrayList<FilePath> newDirectoryStream()
Description copied from class:FilePathList the files and directories in the given directory.- Specified by:
newDirectoryStreamin classFilePath- Returns:
- the list of fully qualified file names
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open
public java.nio.channels.FileChannel open(java.lang.String mode) throws java.io.IOExceptionDescription copied from class:FilePathOpen a random access file object.
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newOutputStream
public java.io.OutputStream newOutputStream(boolean append) throws java.io.IOExceptionDescription copied from class:FilePathCreate an output stream to write into the file.- Overrides:
newOutputStreamin classFilePath- Parameters:
append- if true, the file will grow, if false, the file will be truncated first- Returns:
- the output stream
- Throws:
java.io.IOException- If an I/O error occurs
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moveTo
public void moveTo(FilePath newName, boolean atomicReplace)
Description copied from class:FilePathRename a file if this is allowed.
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translateFileName
private static java.lang.String translateFileName(java.lang.String fileName)
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toRealPath
public FilePath toRealPath()
Description copied from class:FilePathNormalize a file name.- Specified by:
toRealPathin classFilePath- Returns:
- the normalized file name
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getEntryName
private java.lang.String getEntryName()
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openZipFile
private java.util.zip.ZipFile openZipFile() throws java.io.IOException- Throws:
java.io.IOException
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createTempFile
public FilePath createTempFile(java.lang.String suffix, boolean inTempDir) throws java.io.IOException
Description copied from class:FilePathCreate a new temporary file.- Overrides:
createTempFilein classFilePath- Parameters:
suffix- the suffixinTempDir- if the file should be stored in the temporary directory- Returns:
- the name of the created file
- Throws:
java.io.IOException- on failure
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