com.jalios.jstore

Class Store

java.lang.Object

com.jalios.jstore.Store

All Implemented Interfaces:

StoreConstants

public class Store
extends java.lang.Object
implements StoreConstants

This class is the facade of JStore framework. It encapsulates all the sub-components involved for the object storage.

Version:

$Revision: 112717 $

Author:

Olivier Dedieu <olivier.dedieu@jalios.com>

Field Summary

Fields

Modifier and Type	Field and Description
static boolean	DEFAULT_HANDLER_FLAG
static java.lang.String	REVISION
java.lang.Object	storeAccessLock

Fields inherited from interface com.jalios.jstore.StoreConstants

ARRAY_FLAG, CLEANING_STATE, COLLECTION_FLAG, CREATE_OP, DELETE_OP, IDLE_STATE, INNER_LOGS, INNER_MILESTONE, INNER_PREFIX, INNER_SYNC, ITEM_ESCAPE_CHAR, ITEM_SEPARATOR, LOADING_STATE, MAP_ASSIGN, MAP_CHARS_TO_ESCAPE, MAP_CLASS_SEPARATOR, MAP_FLAG, NAMESPACE, SH_SUFFIX, STORING_STATE, UPDATE_OP

Constructor Summary

Constructors

Constructor and Description
Store(java.lang.String logFilename) Create a new Store which does not support precompiled store handlers nor in-memory parsing.
Store(java.lang.String logFilename, boolean areHandlersEnabled) Create a new Store which does not support precompiled store handlers.
Store(java.lang.String logFilename, boolean areHandlersEnabled, java.lang.String urid, boolean useNIO) Create a new Store

Method Summary

Modifier and Type	Method and Description
void	addClassTag(java.lang.String tag, java.lang.Class<?> clazz) Binds a tag name with a Storable class.
void	addExtraDeleteAttribute(java.lang.String attName) Adds an attribute which will be stored when a storable is deleted.
void	addStoreListener(StoreListener listener, boolean repeat)
void	addStoreListener(StoreListener listener, java.lang.Class<?> clazz, boolean repeat)
void	appendAndProcessSuffix(java.util.List<? extends LogEntry> logEntryList) Appends the given LogEntries in the store.xml file and process each of them.
void	appendMilestone(java.util.Map<java.lang.String,java.lang.String> map) Appends a milestone in the store.
void	appendMilestone(java.lang.String text) Appends a milestone in the store.
void	appendSync(java.util.Date date) Appends a sync tag in the store.
boolean	backupStore(java.io.File backupFile) Backup the store.
void	close() Close all Store resources when ending.
void	create(Storable storable) Create a storable, set storable id to stamp value.
void	create(Storable storable, boolean overrideId) Create a storable, if overrideId is false and storable have an id then do not override id.
void	delete(Storable storable) Delete a storable (even if references remain on it).
void	delete(Storable storable, boolean force) Delete a storable.
int	generateDelta(java.io.OutputStream out, Stamp startStamp, boolean includeStart) Ouput in a given stream all the log operations having a stamp greater that the given one.
void	generateLogFromMemory(java.lang.String backupFilename) Cleans the log.
java.lang.Class<?>	getClassFromTag(java.lang.String tag) Returns the class binded with a specified tag name If the class was not registered the class associated to the name is returned
int	getCreationLineNumber(java.lang.String id) Returns the line number in the store file of the creation.
java.util.TreeSet<? extends Storable>	getDeletedSet(java.lang.Class<?> clazz) Get the latest version of the deleted Storable for a given class.
java.util.Set<java.lang.String>	getExtraDeleteAttributeSet() Returns the list of attributes stored when a storable is deleted.
LoadReport	getLoadReport() Return the load report
LogCleaner	getLogCleaner() Returns the LogCleaner.
java.lang.String	getLogFilename() Return the name of the log file.
java.util.List<InnerLogEntry>	getMilestoneList() Returns the list of milestones.
Stamp	getProgressStamp() Return the greatest stamp of this urid
Stamp	getProgressStamp(java.lang.String urid) Return the greatest stamp of the given urid
StampTable	getProgressTable() Return the progressTable
int	getSize() Return the size of the store.
Stamp	getStamp() Return a new stamp.
int	getStampLineNumber(Stamp stamp) Returns the line number in the store file of the given stamp.
int	getState() Return the current state of the store (see StoreConstants).
Storable	getStorable(java.lang.String id) Return the storable given its id
java.util.Map<java.lang.Class<?>,java.util.Set<StoreListener>>	getStoreClassListeners(boolean repeat)
java.util.Set<StoreListener>	getStoreListeners(boolean repeat)
SyncManager	getSyncManager() Return the SyncManager
java.lang.String	getTagFromClass(java.lang.Class<?> clazz) Returns the tag name binded with a specified class
java.lang.String	getUrid()
java.util.List<? extends Storable>	getVersionList(Storable storable) Get all the version of a given Storable
java.util.List<? extends Storable>	getVersionList(java.lang.String id) Get all the version of a given Storable ID
boolean	isReferrenced(Storable storable)
boolean	isRegistered(Storable storable)
boolean	isRegistered(java.lang.String id)
java.util.Iterator<Storable>	iterator() Return an iterator on the storables registered in the swizzler
void	load() Load and process the log
void	load(boolean processStorable, boolean processInner) Load and process the log
void	parseLog(LogManagerHandler handler) Parse the store with the given handler
boolean	parseLog(LogManagerHandler handler, int startLine) Parse the store with the given handler from the given line number
void	parseLog(LogManagerHandler handler, Stamp stamp) Parse the store with the given handler from the given stamp
void	printMemoryToLog(java.io.OutputStream out) Prints a cleaned version of the log.
void	processInnerLogEntry(InnerLogEntry logEntry)
void	processLogEntry(LogEntry logEntry)
void	processStorableLogEntry(StorableLogEntry sle)
void	removeStoreListener(StoreListener listener)
void	removeStoreListener(StoreListener listener, java.lang.Class<?> clazz)
void	replaceSuffix(java.util.TreeSet<StorableLogEntry> newSuffix, LogEntry startLogEntry, boolean includeStart)
void	setClassLoader(java.lang.ClassLoader classLoader) Set the classLoader
void	setReplaceSuffixLimit(int replaceSuffixLimit) A store suffix replacement starting before the limit will be rejected.
void	setUrid(java.lang.String urid) Set the current urid value
void	update(Storable storable, java.util.Map<java.lang.String,java.lang.String> attributes) Update a storable.
void	update(Storable storable, Storable updated) Update a storable.
void	update(java.lang.String id, java.util.Map<java.lang.String,java.lang.String> attributes) Update a storable.
void	update(java.lang.String id, Storable updated) Update a storable.
void	updateStamp(Stamp stamp) Update the current stamp value (and the progress table)
void	updateStamp(Stamp stamp, boolean updatePT) Update the current stamp value
boolean	verifyLastStampIndex() Verify if the last (highest) stamp is correctly indexed.
boolean	verifyStampLineMap() Verify if the stamps are correctly indexed.

Methods inherited from class java.lang.Object

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

Field Detail

REVISION

public static final java.lang.String REVISION

See Also:

Constant Field Values

DEFAULT_HANDLER_FLAG

public static final boolean DEFAULT_HANDLER_FLAG

See Also:

Constant Field Values

storeAccessLock

public java.lang.Object storeAccessLock

Constructor Detail

Store

public Store(java.lang.String logFilename)
      throws java.io.IOException

Create a new Store which does not support precompiled store handlers nor in-memory parsing.

Parameters:

logFilename - the name of the file which contains the log

Throws:

java.io.IOException - if an error occurs

Store

public Store(java.lang.String logFilename,
             boolean areHandlersEnabled)
      throws java.io.IOException

Create a new Store which does not support precompiled store handlers.

Parameters:

logFilename - the name of the file which contains the log

areHandlersEnabled - specify if the precompiled store handlers are supported.

Throws:

java.io.IOException - if an error occurs

Store

public Store(java.lang.String logFilename,
             boolean areHandlersEnabled,
             java.lang.String urid,
             boolean useNIO)
      throws java.io.IOException

Create a new Store

Parameters:

logFilename - the name of the file which contains the log

areHandlersEnabled - specify if the precompiled store handlers are supported.

urid - the URID

useNIO - specify if the NIO must be used (faster store access)

Throws:

java.io.IOException - if an error occurs

Method Detail

addExtraDeleteAttribute

public void addExtraDeleteAttribute(java.lang.String attName)

Adds an attribute which will be stored when a storable is deleted.

Parameters:

attName - the attribute name

Since:

jcms-5.5.0

getExtraDeleteAttributeSet

public java.util.Set<java.lang.String> getExtraDeleteAttributeSet()

Returns the list of attributes stored when a storable is deleted.

Returns:

the list of attributes stored when a storable is deleted.

Since:

jcms-5.5.0

setClassLoader

public void setClassLoader(java.lang.ClassLoader classLoader)

Set the classLoader

Parameters:

classLoader - the classLoader to use

addClassTag

public void addClassTag(java.lang.String tag,
                        java.lang.Class<?> clazz)

Binds a tag name with a Storable class. By default, the tag name of is the full name of a class, e.g. foo.bar.MyClass.

Parameters:

tag - the nam of the tag

clazz - the class

getTagFromClass

public java.lang.String getTagFromClass(java.lang.Class<?> clazz)

Returns the tag name binded with a specified class

Parameters:

clazz - the class

Returns:

the tag name for clazz

getClassFromTag

public java.lang.Class<?> getClassFromTag(java.lang.String tag)
                                   throws java.lang.ClassNotFoundException

Returns the class binded with a specified tag name If the class was not registered the class associated
to the name is returned

Parameters:

tag - the tag name

Returns:

the class binded to the tag

Throws:

java.lang.ClassNotFoundException - if an error occurs

getStorable

public Storable getStorable(java.lang.String id)

Return the storable given its id

Parameters:

id - the storable id

Returns:

the storable bound with this id

isReferrenced

public boolean isReferrenced(Storable storable)

Parameters:

storable - the storable to check

Returns:

true if there is exist at least one storable which references the given storable

isRegistered

public boolean isRegistered(Storable storable)

Parameters:

storable - the storable to check

Returns:

true if the storable is still registered

Since:

jcms-5.0.0

isRegistered

public boolean isRegistered(java.lang.String id)

Parameters:

id - the storable id

Returns:

true if the storable is still registered

Since:

jcms-5.0.0

getVersionList

public java.util.List<? extends Storable> getVersionList(Storable storable)

Get all the version of a given Storable

Parameters:

storable - the storable

Returns:

a list of Storable

getVersionList

public java.util.List<? extends Storable> getVersionList(java.lang.String id)

Get all the version of a given Storable ID

Parameters:

id - the ID of storable

Returns:

a list of Storable

getDeletedSet

public java.util.TreeSet<? extends Storable> getDeletedSet(java.lang.Class<?> clazz)

Get the latest version of the deleted Storable for a given class.

Parameters:

clazz - the searched class

Returns:

a Set of Storable

generateDelta

public int generateDelta(java.io.OutputStream out,
                         Stamp startStamp,
                         boolean includeStart)
                  throws LogException

Ouput in a given stream all the log operations having a stamp greater that the given one.

Parameters:

out - the outputstream to use to output the operations

startStamp - the stamp to start the copy

includeStart - true if the start stamp must be included

Returns:

the number of operations outputted

Throws:

LogException - if an error occurs

parseLog

public void parseLog(LogManagerHandler handler)
              throws LogException

Parse the store with the given handler

Parameters:

handler - the handler used to parse the store

Throws:

LogException - if an error occurs

Since:

jcms-4.1

parseLog

public void parseLog(LogManagerHandler handler,
                     Stamp stamp)
              throws LogException

Parse the store with the given handler from the given stamp

Parameters:

handler - the handler used to parse the store

stamp - the stamp to start the parsing

Throws:

LogException - if an error occurs

Since:

jcms-5.0.0

parseLog

public boolean parseLog(LogManagerHandler handler,
                        int startLine)

Parse the store with the given handler from the given line number

Parameters:

handler - the handler used to parse the store

startLine - the line number to start the parsing

Returns:

false if an exception occures while parsing the log; true otherwise

Since:

jcms-5.0.0

replaceSuffix

public void replaceSuffix(java.util.TreeSet<StorableLogEntry> newSuffix,
                          LogEntry startLogEntry,
                          boolean includeStart)
                   throws java.io.IOException

Parameters:

newSuffix - The new suffix

startLogEntry - the start logEntry

includeStart - true if the startLogEntry must be included

Throws:

java.io.IOException - if an error occurs

Since:

jcms-4.1

See Also:

LogManager.replaceSuffix(java.util.TreeSet,com.jalios.jstore.LogEntry,boolean,boolean)

appendAndProcessSuffix

public void appendAndProcessSuffix(java.util.List<? extends LogEntry> logEntryList)
                            throws java.io.IOException

Appends the given LogEntries in the store.xml file and process each of them.

Parameters:

logEntryList - the list of logEntry. It assumes the logEntries are sorted according their stamps

Throws:

java.io.IOException - if an error occurs

Since:

jcms-4.1

iterator

public java.util.Iterator<Storable> iterator()

Return an iterator on the storables registered in the swizzler

Returns:

the storable iterator.

getSize

public int getSize()

Return the size of the store.

Returns:

the size of the store.

getState

public int getState()

Return the current state of the store (see StoreConstants).

Returns:

the current state

getUrid

public java.lang.String getUrid()

Returns:

the current urid value

See Also:

StampManager.getUrid()

setUrid

public void setUrid(java.lang.String urid)

Set the current urid value

Parameters:

urid - the URID

See Also:

StampManager.setUrid(String)

updateStamp

public void updateStamp(Stamp stamp)

Update the current stamp value (and the progress table)

Parameters:

stamp - the stamp to be added

Since:

jcms-4.0

See Also:

updateStamp(Stamp, boolean)

updateStamp

public void updateStamp(Stamp stamp,
                        boolean updatePT)

Update the current stamp value

Parameters:

stamp - the stamp to be added

updatePT - if true use this stamp to update the progress table

Since:

jcms-5.0.6

See Also:

StampManager.update(com.jalios.jstore.Stamp,boolean)

getStamp

public Stamp getStamp()

Return a new stamp. Ensures their strict monotonicity.

Returns:

a new stamp

Since:

jcms-4.0.2

See Also:

StampManager.getStamp()

getProgressTable

public StampTable getProgressTable()

Return the progressTable

Returns:

the map of greatest stamp

See Also:

StampManager.getProgressTable()

getProgressStamp

public Stamp getProgressStamp()

Return the greatest stamp of this urid

Returns:

a Stamp

See Also:

StampManager.getProgressStamp(String)

getProgressStamp

public Stamp getProgressStamp(java.lang.String urid)

Return the greatest stamp of the given urid

Parameters:

urid - the urid

Returns:

a Stamp

See Also:

StampManager.getProgressStamp(String)

getSyncManager

public SyncManager getSyncManager()

Return the SyncManager

Returns:

the SyncManager

Since:

jcms-4.0.2

load

public void load()
          throws LogException

Load and process the log

Throws:

LogException - if an error occurs

load

public void load(boolean processStorable,
                 boolean processInner)
          throws LogException

Load and process the log

Parameters:

processStorable - if true the storable operations are processed. If false only the stamps information are processed.

processInner - if true the storable operations are processed. If false only the stamps information are processed.

Throws:

LogException - if an error occurs

Since:

jcms-4.0.2

processLogEntry

public void processLogEntry(LogEntry logEntry)

processInnerLogEntry

public void processInnerLogEntry(InnerLogEntry logEntry)

processStorableLogEntry

public void processStorableLogEntry(StorableLogEntry sle)

create

public void create(Storable storable)
            throws java.io.IOException

Create a storable, set storable id to stamp value.

Parameters:

storable - the storable to create.

Throws:

java.io.IOException - if an error occurs

create

public void create(Storable storable,
                   boolean overrideId)
            throws java.io.IOException

Create a storable, if overrideId is false and storable have an id then do not override id. The storable lus not have been swizzled.
Use with care the overrideId parameter.

Parameters:

storable - the storable

overrideId - if overrideId is false and storable have an id then do not override id

Throws:

java.io.IOException - if an error occurs

Since:

jcms-4.0

update

public void update(java.lang.String id,
                   java.util.Map<java.lang.String,java.lang.String> attributes)
            throws java.io.IOException

Update a storable. Perform the update operation on all elements of the map even if the attribute value is not updated.

Parameters:

id - the id of the storable to update

attributes - the map that contains the new attributes values

Throws:

java.io.IOException - if an error occurs

update

public void update(Storable storable,
                   java.util.Map<java.lang.String,java.lang.String> attributes)
            throws java.io.IOException

Update a storable. Perform the update operation on all elements of the map even if the attribute value is not updated.

Parameters:

storable - the storable to update

attributes - the map that contains the new attributes values

Throws:

java.io.IOException - if an error occurs

update

public void update(java.lang.String id,
                   Storable updated)
            throws java.io.IOException,
                   NoUpdateException

Update a storable. The stored update only concerns fields that are differents (i.e. not the same object) between storable and updated.

Parameters:

id - the id of the storable to update

updated - the updated storable

Throws:

java.io.IOException - if an error occurs

NoUpdateException - if an error occurs

update

public void update(Storable storable,
                   Storable updated)
            throws java.io.IOException,
                   NoUpdateException

Update a storable. The stored update only concerns fields that are differents (i.e. not the same object) between storable and updated.

Parameters:

storable - the storable to update

updated - the updated storable

Throws:

java.io.IOException - if an error occurs

NoUpdateException - on error, for example when given objects are same instance

delete

public void delete(Storable storable)
            throws java.io.IOException

Delete a storable (even if references remain on it).

Parameters:

storable - the storable to delete

Throws:

java.io.IOException - if an error occurs

delete

public void delete(Storable storable,
                   boolean force)
            throws java.io.IOException

Delete a storable.

Parameters:

storable - the storable to delete

force - if true the referenced storable attributes are deleted

Throws:

java.io.IOException - if an error occurs

getMilestoneList

public java.util.List<InnerLogEntry> getMilestoneList()

Returns the list of milestones.

Returns:

the list of milestones.

Since:

jcms-5.5.0

appendMilestone

public void appendMilestone(java.lang.String text)
                     throws java.io.IOException

Appends a milestone in the store.

Parameters:

text - the text of the milestone.

Throws:

java.io.IOException - if an error occurs

Since:

jcms-5.5.0

appendMilestone

public void appendMilestone(java.util.Map<java.lang.String,java.lang.String> map)
                     throws java.io.IOException

Appends a milestone in the store.

Parameters:

map - the map of attributes.

Throws:

java.io.IOException - if an error occurs

Since:

jcms-5.5.0

appendSync

public void appendSync(java.util.Date date)
                throws java.io.IOException

Appends a sync tag in the store.

Parameters:

date - the date of the sync.

Throws:

java.io.IOException - if an error occurs

Since:

jcms-5.5.0

generateLogFromMemory

public void generateLogFromMemory(java.lang.String backupFilename)
                           throws java.io.IOException

Cleans the log. The current log file is remplaced by a new one which contains the result of printCleanedLog method. If a backup filename is provided (i.e. not null), the current log file is copy into before to be cleaned.

Parameters:

backupFilename - the name of the file to backup the current log

Throws:

java.io.IOException - if an error occurs

printMemoryToLog

public void printMemoryToLog(java.io.OutputStream out)
                      throws java.lang.Exception

Prints a cleaned version of the log. All operations on deleted storable are removed. All update operations are integrated in a new creation operations (except cycling storable references which are resolved in a second update step).

Parameters:

out - the OutputStream in which to print the cleaned log

Throws:

java.lang.Exception - if an error occurs

getLogCleaner

public LogCleaner getLogCleaner()

Returns the LogCleaner.

Returns:

the LogCleaner.

Since:

jcms-5.5.0

getLogFilename

public java.lang.String getLogFilename()

Return the name of the log file.

Returns:

the name of the log file

getLoadReport

public LoadReport getLoadReport()

Return the load report

Returns:

a LoadReport instance

getStampLineNumber

public int getStampLineNumber(Stamp stamp)

Returns the line number in the store file of the given stamp.

Parameters:

stamp - the stamp to get the line number

Returns:

the line number (starts at 0)

Since:

jcms-5.0.1

verifyStampLineMap

public boolean verifyStampLineMap()

Verify if the stamps are correctly indexed. Prints the first bad indexed stamp in the log.

Returns:

true if all the stamps are correctly indexed.

Since:

jcms-5.0.5

verifyLastStampIndex

public boolean verifyLastStampIndex()

Verify if the last (highest) stamp is correctly indexed.

Returns:

true if the latest stamps are correctly indexed.

getCreationLineNumber

public int getCreationLineNumber(java.lang.String id)

Returns the line number in the store file of the creation. entry of the given storable

Parameters:

id - the id of the storable

Returns:

the line number (starts at 0)

Since:

jcms-5.0.1

backupStore

public boolean backupStore(java.io.File backupFile)

Backup the store.

Parameters:

backupFile - the backup file.

Returns:

true if the store has been successfully backuped.

Since:

jcms-5.7.0

See Also:

LogManager.backupStore(File)

setReplaceSuffixLimit

public void setReplaceSuffixLimit(int replaceSuffixLimit)

A store suffix replacement starting before the limit will be rejected.

Parameters:

replaceSuffixLimit - the limit (in number of lines).

Since:

jcms-5.7.4

getStoreListeners

public java.util.Set<StoreListener> getStoreListeners(boolean repeat)

getStoreClassListeners

public java.util.Map<java.lang.Class<?>,java.util.Set<StoreListener>> getStoreClassListeners(boolean repeat)

addStoreListener

public void addStoreListener(StoreListener listener,
                             boolean repeat)

addStoreListener

public void addStoreListener(StoreListener listener,
                             java.lang.Class<?> clazz,
                             boolean repeat)

removeStoreListener

public void removeStoreListener(StoreListener listener)

removeStoreListener

public void removeStoreListener(StoreListener listener,
                                java.lang.Class<?> clazz)

close

public void close()

Close all Store resources when ending.