org.broadleafcommerce.common.file.service
Class BroadleafFileServiceImpl

java.lang.Object
  org.broadleafcommerce.common.file.service.BroadleafFileServiceImpl

All Implemented Interfaces:

BroadleafFileService

@Service(value="blFileService")
public class BroadleafFileServiceImpl
extends Object
implements BroadleafFileService

Many components in the Broadleaf Framework can benefit from creating and manipulating temporary files as well as storing and accessing files in a remote repository (such as AmazonS3). This service provides a pluggable way to provide those services via FileServiceProvider implementations. This service can be used by any component that needs to write files to an area shared by multiple application servers. For example usage, see SiteMapGenerator. The Broadleaf CMS module also uses this component to load, store, and manipulate images for the file-system. Generally, the process to create a new asset in the shared file system is ... 1. Call initializeWorkArea() to get a temporary directory 2. Create files, directories, etc. using the FileWorkArea.filePathLocation as the root directory. 3. Once your file processing is complete, call #addOrUpdateResources(FileWorkArea, FileApplicationType) to 4. Call #closeWorkArea() to clear out the temporary files

Author:

bpolster

Field Summary

protected FileServiceProvider	defaultFileServiceProvider
protected String	fileServiceClasspathDirectory
protected List<FileServiceProvider>	fileServiceProviders
protected int	maxGeneratedDirectoryDepth
protected String	tempFileSystemBaseDirectory

Constructor Summary

BroadleafFileServiceImpl()

Method Summary

protected String	addLeadingSlash(String fileName)
void	addOrUpdateResource(FileWorkArea workArea, File file, boolean removeFilesFromWorkArea) Takes in a work area and a fileName.
void	addOrUpdateResources(FileWorkArea workArea, boolean removeFilesFromWorkArea) Takes in a work area and application type and moves all of the files to the configured FileProvider.
void	addOrUpdateResources(FileWorkArea workArea, List<File> files, boolean removeFilesFromWorkArea) Takes in a temporary work area and a list of Files and copies them to the configured FileProvider's permanent storage.
protected void	buildFileList(File file, Collection<File> fileList) Adds the file to the passed in Collection.
protected String	buildFilePath(String directory, String fileName) Builds a file path that ensures the directory and filename are separated by a single separator.
protected void	checkFiles(FileWorkArea workArea, List<File> fileList)
boolean	checkForResourceOnClassPath(String name) Returns true if the resource is available on the classpath.
void	closeWorkArea(FileWorkArea fwArea) Closes the passed in work area.
protected StringBuilder	getBaseDirectory(boolean skipSite) Returns the baseDirectory for writing and reading files as the property assetFileSystemPath if it exists or java.tmp.io if that property has not been set.
InputStream	getClasspathResource(String name) Allows assets to be included in the Java classpath.
FileServiceProvider	getDefaultFileServiceProvider()
List<FileServiceProvider>	getFileServiceProviders()
File	getLocalResource(String resourceName) Checks for a resource in the temporary directory of the file-system.
protected File	getLocalResource(String resourceName, boolean skipSite)
int	getMaxGeneratedDirectoryDepth()
File	getResource(String name) Returns a File representing the passed in name.
File	getResource(String name, FileApplicationType applicationType) Returns a File representing the passed in name and application type.
File	getSharedLocalResource(String resourceName) Checks for a resource in the temporary directory of the file-system.
protected String	getTempDirectory(StringBuilder baseDirectory) Returns a directory that is unique for this work area.
String	getTempFileSystemBaseDirectory()
FileWorkArea	initializeWorkArea() Create a file work area that can be used for further operations.
protected org.springframework.core.io.ClassPathResource	lookupResourceOnClassPath(String name)
protected String	removeLeadingSlash(String fileName)
boolean	removeResource(String resourceName) Removes the resource matching the passed in file name from the FileProvider
protected FileServiceProvider	selectFileServiceProvider() Returns the FileServiceProvider that can handle the passed in application type.
void	setDefaultFileServiceProvider(FileServiceProvider defaultFileServiceProvider)
void	setFileServiceProviders(List<FileServiceProvider> fileServiceProviders)
void	setMaxGeneratedDirectoryDepth(int maxGeneratedDirectoryDepth)
void	setTempFileSystemBaseDirectory(String tempFileSystemBaseDirectory)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

fileServiceProviders

protected List<FileServiceProvider> fileServiceProviders

defaultFileServiceProvider

protected FileServiceProvider defaultFileServiceProvider

tempFileSystemBaseDirectory

@Value(value="${file.service.temp.file.base.directory}")
protected String tempFileSystemBaseDirectory

maxGeneratedDirectoryDepth

@Value(value="${asset.server.max.generated.file.system.directories}")
protected int maxGeneratedDirectoryDepth

fileServiceClasspathDirectory

@Value(value="${asset.server.file.classpath.directory}")
protected String fileServiceClasspathDirectory

Constructor Detail

BroadleafFileServiceImpl

public BroadleafFileServiceImpl()

Method Detail

initializeWorkArea

public FileWorkArea initializeWorkArea()

Create a file work area that can be used for further operations.

Specified by:

initializeWorkArea in interface BroadleafFileService

Returns:

closeWorkArea

public void closeWorkArea(FileWorkArea fwArea)

Closes the passed in work area. This method will delete the work area (typically a directory on the file system and all items it encloses).

Specified by:

closeWorkArea in interface BroadleafFileService

Parameters:

Work - Area

getResource

public File getResource(String name)

Description copied from interface: BroadleafFileService

Returns a File representing the passed in name. This method will always access the file via the FileProvider which might be a remote operation as opposed to the BroadleafFileService.getResource(String, FileApplicationType) method which may access a copy of the file that is stored locally.

Specified by:

getResource in interface BroadleafFileService

Parameters:

name - - fully qualified path to the resource

Returns:

getLocalResource

protected File getLocalResource(String resourceName,
                                boolean skipSite)

getLocalResource

public File getLocalResource(String resourceName)

Description copied from interface: BroadleafFileService

Checks for a resource in the temporary directory of the file-system. Will check for a site-specific file.

Specified by:

getLocalResource in interface BroadleafFileService

Returns:

getSharedLocalResource

public File getSharedLocalResource(String resourceName)

Description copied from interface: BroadleafFileService

Checks for a resource in the temporary directory of the file-system. Will check for a global (e.g. not site specific file).

Specified by:

getSharedLocalResource in interface BroadleafFileService

Returns:

getResource

public File getResource(String name,
                        FileApplicationType applicationType)

Description copied from interface: BroadleafFileService

Returns a File representing the passed in name and application type. The application type provides an opportunity for the provider to cache the file locally for infrequently change files.

Specified by:

getResource in interface BroadleafFileService

Parameters:

name - - fully qualified path to the resource

applicationType - - The type of file being accessed

Returns:

buildFilePath

protected String buildFilePath(String directory,
                               String fileName)

Builds a file path that ensures the directory and filename are separated by a single separator.

Parameters:

directory -

fileName -

Returns:

checkForResourceOnClassPath

public boolean checkForResourceOnClassPath(String name)

Description copied from interface: BroadleafFileService

Returns true if the resource is available on the classpath.

Specified by:

checkForResourceOnClassPath in interface BroadleafFileService

Returns:

lookupResourceOnClassPath

protected org.springframework.core.io.ClassPathResource lookupResourceOnClassPath(String name)

getClasspathResource

public InputStream getClasspathResource(String name)

Description copied from interface: BroadleafFileService

Allows assets to be included in the Java classpath. This method was designed to support an internal Broadleaf use case and may not have general applicability beyond that. For Broadleaf demo sites, many of the product images are shared across the demo sites. Rather than copy those images, they are stored in a Jar file and shared by all of the sites.

Specified by:

getClasspathResource in interface BroadleafFileService

Parameters:

name - - fully qualified path to the resource

Returns:

removeResource

public boolean removeResource(String resourceName)

Removes the resource matching the passed in file name from the FileProvider

Specified by:

removeResource in interface BroadleafFileService

Parameters:

resourceName - - fully qualified path to the resource

addOrUpdateResource

public void addOrUpdateResource(FileWorkArea workArea,
                                File file,
                                boolean removeFilesFromWorkArea)

Takes in a work area and a fileName. Loads the file onto the provider. Passing in removeFilesFromWorkArea to true allows for more efficient file processing when using a local file system as it performs a move operation instead of a copy.

Specified by:

addOrUpdateResource in interface BroadleafFileService

Parameters:

workArea -

applicationType -

fileNames -

removeFilesFromWorkArea -

addOrUpdateResources

public void addOrUpdateResources(FileWorkArea workArea,
                                 boolean removeFilesFromWorkArea)

Takes in a work area and application type and moves all of the files to the configured FileProvider.

Specified by:

addOrUpdateResources in interface BroadleafFileService

Parameters:

workArea -

applicationType -

addOrUpdateResources

public void addOrUpdateResources(FileWorkArea workArea,
                                 List<File> files,
                                 boolean removeFilesFromWorkArea)

Description copied from interface: BroadleafFileService

Takes in a temporary work area and a list of Files and copies them to the configured FileProvider's permanent storage. Passing in removeFilesFromWorkArea to true allows for more efficient file processing when using a local file system as it performs a move operation instead of a copy.

Specified by:

addOrUpdateResources in interface BroadleafFileService

selectFileServiceProvider

protected FileServiceProvider selectFileServiceProvider()

Returns the FileServiceProvider that can handle the passed in application type. By default, this method returns the component configured at blFileServiceProvider

Parameters:

applicationType -

Returns:

checkFiles

protected void checkFiles(FileWorkArea workArea,
                          List<File> fileList)

removeLeadingSlash

protected String removeLeadingSlash(String fileName)

addLeadingSlash

protected String addLeadingSlash(String fileName)

getBaseDirectory

protected StringBuilder getBaseDirectory(boolean skipSite)

Returns the baseDirectory for writing and reading files as the property assetFileSystemPath if it exists or java.tmp.io if that property has not been set. This method appends a trailing slash to the directory if it does not already have one.

getTempDirectory

protected String getTempDirectory(StringBuilder baseDirectory)

Returns a directory that is unique for this work area.

buildFileList

protected void buildFileList(File file,
                             Collection<File> fileList)

Adds the file to the passed in Collection. If the file is a directory, adds its children recursively. Otherwise, just adds the file to the list.

Parameters:

file -

fileList -

getTempFileSystemBaseDirectory

public String getTempFileSystemBaseDirectory()

setTempFileSystemBaseDirectory

public void setTempFileSystemBaseDirectory(String tempFileSystemBaseDirectory)

getFileServiceProviders

public List<FileServiceProvider> getFileServiceProviders()

setFileServiceProviders

public void setFileServiceProviders(List<FileServiceProvider> fileServiceProviders)

getMaxGeneratedDirectoryDepth

public int getMaxGeneratedDirectoryDepth()

setMaxGeneratedDirectoryDepth

public void setMaxGeneratedDirectoryDepth(int maxGeneratedDirectoryDepth)

getDefaultFileServiceProvider

public FileServiceProvider getDefaultFileServiceProvider()

setDefaultFileServiceProvider

public void setDefaultFileServiceProvider(FileServiceProvider defaultFileServiceProvider)