Package com.flowable.content.engine.impl.fs

Class SimpleFileSystemContentStorage

java.lang.Object

com.flowable.content.engine.impl.fs.SimpleFileSystemContentStorage

All Implemented Interfaces:

ContentStorage

public class SimpleFileSystemContentStorage
extends Object
implements ContentStorage

(Very) simple implementation of the ContentStorage that relies on the passed metadata to store content. Under a root folder, a division between 'task' and 'process-instance' content is made. New content gets a new UUID assigned and is placed in one of these folders. The id of the returned ContentObject indicates in which folder it is stored.

Author:

Joram Barrez

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
protected static class	SimpleFileSystemContentStorage.MapBasedContentObjectStorageMetadata

Field Summary

Fields

Modifier and Type	Field	Description
static String	CASE_PREFIX
protected File	caseFolder
protected File	contentFolderRoot
static String	PROCESS_INSTANCE_PREFIX
protected File	processInstanceFolder
static String	TASK_PREFIX
protected File	taskFolder
static String	TYPE_CASE_INSTANCE
static String	TYPE_PROCESS_INSTANCE
static String	TYPE_TASK
static String	TYPE_UNCATEGORIZED
static String	UNCATEGORIZED_PREFIX
protected File	uncategorizedFolder

Constructor Summary

Constructors

Constructor	Description
SimpleFileSystemContentStorage(File contentFolderRoot)

Method Summary

Modifier and Type	Method	Description
ContentObject	createContentObject(InputStream contentStream, Map<String,Object> metadata)
ContentObject	createContentObject(InputStream contentStream, ContentObjectStorageMetadata metaData)
protected File	createOrGetFolderBasedOnMetaData(ContentObjectStorageMetadata metaData)
void	deleteContentObject(String id)
protected String	determineType(ContentObjectStorageMetadata metaData)
protected String	generateContentId(String uuid, ContentObjectStorageMetadata metadata)
protected File	getContentFile(String id)
protected File	getContentFile(ContentObjectStorageMetadata metaData, String contentId)
ContentObject	getContentObject(String id)
String	getContentStoreName()
Map<String,Object>	getMetaData()
protected File	internalCreateOrGetFolder(File parentFolder, String id)
ContentObject	updateContentObject(String id, InputStream contentStream, Map<String,Object> metaData)
ContentObject	updateContentObject(String id, InputStream contentStream, ContentObjectStorageMetadata metaData)
protected File	validateOrCreateFolder(String folderName)
protected void	validateOrCreateSubfolders()

Methods inherited from class java.lang.Object

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

Field Detail

TYPE_TASK

public static final String TYPE_TASK

See Also:

Constant Field Values

TYPE_PROCESS_INSTANCE

public static final String TYPE_PROCESS_INSTANCE

See Also:

Constant Field Values

TYPE_CASE_INSTANCE

public static final String TYPE_CASE_INSTANCE

See Also:

Constant Field Values

TYPE_UNCATEGORIZED

public static final String TYPE_UNCATEGORIZED

See Also:

Constant Field Values

TASK_PREFIX

public static final String TASK_PREFIX

See Also:

Constant Field Values

PROCESS_INSTANCE_PREFIX

public static final String PROCESS_INSTANCE_PREFIX

See Also:

Constant Field Values

CASE_PREFIX

public static final String CASE_PREFIX

See Also:

Constant Field Values

UNCATEGORIZED_PREFIX

public static final String UNCATEGORIZED_PREFIX

See Also:

Constant Field Values

contentFolderRoot

protected File contentFolderRoot

taskFolder

protected File taskFolder

processInstanceFolder

protected File processInstanceFolder

caseFolder

protected File caseFolder

uncategorizedFolder

protected File uncategorizedFolder

Constructor Detail

SimpleFileSystemContentStorage

public SimpleFileSystemContentStorage(File contentFolderRoot)

Method Detail

validateOrCreateSubfolders

protected void validateOrCreateSubfolders()

validateOrCreateFolder

protected File validateOrCreateFolder(String folderName)

createContentObject

public ContentObject createContentObject(InputStream contentStream,
                                         Map<String,Object> metadata)

Specified by:

createContentObject in interface ContentStorage

createContentObject

public ContentObject createContentObject(InputStream contentStream,
                                         ContentObjectStorageMetadata metaData)

Specified by:

createContentObject in interface ContentStorage

generateContentId

protected String generateContentId(String uuid,
                                   ContentObjectStorageMetadata metadata)

updateContentObject

public ContentObject updateContentObject(String id,
                                         InputStream contentStream,
                                         Map<String,Object> metaData)

Specified by:

updateContentObject in interface ContentStorage

updateContentObject

public ContentObject updateContentObject(String id,
                                         InputStream contentStream,
                                         ContentObjectStorageMetadata metaData)

Specified by:

updateContentObject in interface ContentStorage

getContentObject

public ContentObject getContentObject(String id)

Specified by:

getContentObject in interface ContentStorage

getContentFile

protected File getContentFile(String id)

getMetaData

public Map<String,Object> getMetaData()

Specified by:

getMetaData in interface ContentStorage

deleteContentObject

public void deleteContentObject(String id)

Specified by:

deleteContentObject in interface ContentStorage

getContentStoreName

public String getContentStoreName()

Specified by:

getContentStoreName in interface ContentStorage

getContentFile

protected File getContentFile(ContentObjectStorageMetadata metaData,
                              String contentId)

determineType

protected String determineType(ContentObjectStorageMetadata metaData)

createOrGetFolderBasedOnMetaData

protected File createOrGetFolderBasedOnMetaData(ContentObjectStorageMetadata metaData)

internalCreateOrGetFolder

protected File internalCreateOrGetFolder(File parentFolder,
                                         String id)