Class SyncPipePlugin
- java.lang.Object
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- com.unboundid.directory.sdk.sync.api.SyncPipePlugin
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- All Implemented Interfaces:
Configurable
,ExampleUsageProvider
,Reconfigurable<SyncPipePluginConfig>
,UnboundIDExtension
@Extensible @SynchronizationServerExtension(appliesToLocalContent=false, appliesToSynchronizedContent=true) @ThreadSafety(level=INTERFACE_THREADSAFE) public abstract class SyncPipePlugin extends java.lang.Object implements UnboundIDExtension, Reconfigurable<SyncPipePluginConfig>, ExampleUsageProvider
This class defines an API that must be implemented by extensions that perform processing on synchronization operations within the Sync Pipe. These extensions may be used to- Filter out certain changes from being synchronized.
- Add and remove attributes that should be synchronized with the destination independent of whether they changed at the source or not.
- Manipulate the changes that are synchronized to ignore certain modified attributes or change the representation of modified attributes.
- Skip certain steps in Sync Pipe processing, e.g. attribute and DN mapping.
postMapping
method but not thepreMapping
method. These extensions do not have access to the Sync Source or Sync Destination.
Configuring Sync Pipe Plugins
In order to configure a sync pipe plugin created using this API, use a command like:dsconfig create-sync-pipe-plugin \ --plugin-name "{plugin-name}" \ --type third-party \ --set "extension-class:{class-name}" \ --set "extension-argument:{name=value}"
where "{plugin-name}" is the name to use for the sync pipe plugin instance, "{class-name}" is the fully-qualified name of the Java class that extendscom.unboundid.directory.sdk.sync.api.SyncPipePlugin
, and "{name=value}" represents name-value pairs for any arguments to provide to the sync pipe plugin. If multiple arguments should be provided to the sync pipe plugin, then the "--set extension-argument:{name=value}
" option should be provided multiple times.- See Also:
ScriptedSyncPipePlugin
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Constructor Summary
Constructors Constructor Description SyncPipePlugin()
Creates a new instance of this sync pipe plugin.
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Method Summary
All Methods Instance Methods Abstract Methods Concrete Methods Modifier and Type Method Description ResultCode
applyConfiguration(SyncPipePluginConfig config, ArgumentParser parser, java.util.List<java.lang.String> adminActionsRequired, java.util.List<java.lang.String> messages)
Attempts to apply the configuration from the provided argument parser to this extension.void
defineConfigArguments(ArgumentParser parser)
Updates the provided argument parser to define any configuration arguments which may be used by this extension.void
finalizeSyncPipePlugin()
Performs any cleanup which may be necessary when this sync pipe plugin is taken out of service.java.util.Map<java.util.List<java.lang.String>,java.lang.String>
getExamplesArgumentSets()
Retrieves a map containing examples of configurations that may be used for this extension.abstract java.lang.String[]
getExtensionDescription()
Retrieves a human-readable description for this extension.abstract java.lang.String
getExtensionName()
Retrieves a human-readable name for this extension.void
initializeSyncPipePlugin(SyncServerContext serverContext, SyncPipePluginConfig config, ArgumentParser parser)
Initializes this sync pipe plugin.boolean
isConfigurationAcceptable(SyncPipePluginConfig config, ArgumentParser parser, java.util.List<java.lang.String> unacceptableReasons)
Indicates whether the configuration represented by the provided argument parser is acceptable for use by this extension.PostStepResult
postMapping(Entry sourceEntry, Entry equivalentDestinationEntry, SyncOperation operation)
This method is called immediately after the attributes and DN in the source entry are mapped into the equivalent destination entry.PreStepResult
preMapping(Entry sourceEntry, Entry equivalentDestinationEntry, SyncOperation operation)
This method is called immediately before the attributes and DN in the source entry are mapped into the equivalent destination entry.java.lang.String
toString()
Retrieves a string representation of this sync pipe plugin.abstract void
toString(java.lang.StringBuilder buffer)
Appends a string representation of this sync pipe plugin to the provided buffer.
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Constructor Detail
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SyncPipePlugin
public SyncPipePlugin()
Creates a new instance of this sync pipe plugin. All sync pipe plugin implementations must include a default constructor, but any initialization should generally be done in theinitializeSyncPipePlugin
method.
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Method Detail
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getExtensionName
public abstract java.lang.String getExtensionName()
Retrieves a human-readable name for this extension.- Specified by:
getExtensionName
in interfaceUnboundIDExtension
- Returns:
- A human-readable name for this extension.
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getExtensionDescription
public abstract java.lang.String[] getExtensionDescription()
Retrieves a human-readable description for this extension. Each element of the array that is returned will be considered a separate paragraph in generated documentation.- Specified by:
getExtensionDescription
in interfaceUnboundIDExtension
- Returns:
- A human-readable description for this extension, or
null
or an empty array if no description should be available.
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defineConfigArguments
public void defineConfigArguments(ArgumentParser parser) throws ArgumentException
Updates the provided argument parser to define any configuration arguments which may be used by this extension. The argument parser may also be updated to define relationships between arguments (e.g., to specify required, exclusive, or dependent argument sets).- Specified by:
defineConfigArguments
in interfaceConfigurable
- Parameters:
parser
- The argument parser to be updated with the configuration arguments which may be used by this extension.- Throws:
ArgumentException
- If a problem is encountered while updating the provided argument parser.
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initializeSyncPipePlugin
public void initializeSyncPipePlugin(SyncServerContext serverContext, SyncPipePluginConfig config, ArgumentParser parser) throws LDAPException
Initializes this sync pipe plugin. This method will be called before any other methods in the class.- Parameters:
serverContext
- A handle to the server context for the Data Sync Server in which this extension is running. Extensions should typically store this in a class member.config
- The general configuration for this proxy transformation.parser
- The argument parser which has been initialized from the configuration for this sync pipe plugin.- Throws:
LDAPException
- If a problem occurs while initializing this sync pipe plugin.
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isConfigurationAcceptable
public boolean isConfigurationAcceptable(SyncPipePluginConfig config, ArgumentParser parser, java.util.List<java.lang.String> unacceptableReasons)
Indicates whether the configuration represented by the provided argument parser is acceptable for use by this extension. The parser will have been used to parse any configuration available for this extension, and any automatic validation will have been performed. This method may be used to perform any more complex validation which cannot be performed automatically by the argument parser.- Specified by:
isConfigurationAcceptable
in interfaceReconfigurable<SyncPipePluginConfig>
- Parameters:
config
- The general configuration for this extension.parser
- The argument parser that has been used to parse the proposed configuration for this extension.unacceptableReasons
- A list to which messages may be added to provide additional information about why the provided configuration is not acceptable.- Returns:
true
if the configuration in the provided argument parser appears to be acceptable, orfalse
if not.
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applyConfiguration
public ResultCode applyConfiguration(SyncPipePluginConfig config, ArgumentParser parser, java.util.List<java.lang.String> adminActionsRequired, java.util.List<java.lang.String> messages)
Attempts to apply the configuration from the provided argument parser to this extension.- Specified by:
applyConfiguration
in interfaceReconfigurable<SyncPipePluginConfig>
- Parameters:
config
- The general configuration for this extension.parser
- The argument parser that has been used to parse the new configuration for this extension.adminActionsRequired
- A list to which messages may be added to provide additional information about any additional administrative actions that may be required to apply some of the configuration changes.messages
- A list to which messages may be added to provide additional information about the processing performed by this method.- Returns:
- A result code providing information about the result of applying
the configuration change. A result of
SUCCESS
should be used to indicate that all processing completed successfully. Any other result will indicate that a problem occurred during processing.
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finalizeSyncPipePlugin
public void finalizeSyncPipePlugin()
Performs any cleanup which may be necessary when this sync pipe plugin is taken out of service. This can happen when it is deleted from the configuration and at server shutdown.
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preMapping
public PreStepResult preMapping(Entry sourceEntry, Entry equivalentDestinationEntry, SyncOperation operation)
This method is called immediately before the attributes and DN in the source entry are mapped into the equivalent destination entry. This equivalent destination entry is then compared to the actual destination entry to determine which of the modified attributes need to be updated.This method is typically used to either filter out certain changes (by returning
PreStepResult.ABORT_OPERATION
) or to manipulate the source entry before it is converted into an equivalent destination entry. Attributes that will not otherwise be affected by attribute mapping can be set inequivalentDestinationEntry
. Although, due to the possibility of being overwritten in the mapping phase, manipulation ofequivalentDestinationEntry
is typically reserved for thepostMapping(com.unboundid.ldap.sdk.Entry, com.unboundid.ldap.sdk.Entry, com.unboundid.directory.sdk.sync.types.SyncOperation)
method.The set of source attributes that should be synchronized at the destination can be manipulated by calling
SyncOperation.addModifiedSourceAttribute(java.lang.String)
andSyncOperation.removeModifiedSourceAttribute(java.lang.String)
onoperation
.Additional steps must be taken if this plugin adds destination attributes in
equivalentDestinationEntry
that need to be modified at the destination. For operations with an operation type ofSyncOperationType.CREATE
, any updates made toequivalentDestinationEntry
will be included in the entry created at the destination. However, for operations with an operation type ofSyncOperationType.MODIFY
, destination attributes added by this plugin that need to be modified must be updated explicitly by callingSyncOperation.addModifiedDestinationAttribute(java.lang.String)
.With the exception of aborting changes or skipping the mapping step completely, most plugins will not need to override this method since the
postMapping(com.unboundid.ldap.sdk.Entry, com.unboundid.ldap.sdk.Entry, com.unboundid.directory.sdk.sync.types.SyncOperation)
method has access to the fully mapped destination entry.- Parameters:
sourceEntry
- The entry that was fetched from the source.equivalentDestinationEntry
- The destination entry that is equivalent to the source. This entry will be empty except for any modifications that have been performed by other sync pipe plugins.operation
- The operation that is being synchronized.- Returns:
- The result of the plugin processing. Note:
PreStepResult#3SKIP_CURRENT_STEP
should only be returned if this plugin takes responsibility for fully constructing the equivalent destination entry.
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postMapping
public PostStepResult postMapping(Entry sourceEntry, Entry equivalentDestinationEntry, SyncOperation operation)
This method is called immediately after the attributes and DN in the source entry are mapped into the equivalent destination entry. Once this mapping is complete, this equivalent destination entry is then compared to the actual destination entry to determine which of the modified attributes need to be updated.This method is typically used to manipulate the equivalent destination entry before these necessary changes are calculated. It can also be used to filter out certain changes (by returning
PostStepResult.ABORT_OPERATION
), but this is typically done in thepreMapping(com.unboundid.ldap.sdk.Entry, com.unboundid.ldap.sdk.Entry, com.unboundid.directory.sdk.sync.types.SyncOperation)
method.The set of source attributes that should be synchronized at the destination can be manipulated by calling
SyncOperation.addModifiedSourceAttribute(java.lang.String)
andSyncOperation.removeModifiedSourceAttribute(java.lang.String)
onoperation
.Additional steps must be taken if this plugin adds destination attributes in
equivalentDestinationEntry
that need to be modified at the destination. For operations with an operation type ofSyncOperationType.CREATE
, any updates made toequivalentDestinationEntry
will be included in the entry created at the destination. However, for operations with an operation type ofSyncOperationType.MODIFY
, destination attributes added by this plugin that need to be modified must be updated explicitly by callingSyncOperation.addModifiedDestinationAttribute(java.lang.String)
.With the exception of aborting changes or skipping the mapping step completely, most plugins will override this method instead of
preMapping(com.unboundid.ldap.sdk.Entry, com.unboundid.ldap.sdk.Entry, com.unboundid.directory.sdk.sync.types.SyncOperation)
because this method has access to the fully mapped destination entry.- Parameters:
sourceEntry
- The entry that was fetched from the source.equivalentDestinationEntry
- The destination entry that is equivalent to the source. This entry will include all attributes mapped from the source entry.operation
- The operation that is being synchronized.- Returns:
- The result of the plugin processing.
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toString
public final java.lang.String toString()
Retrieves a string representation of this sync pipe plugin.- Overrides:
toString
in classjava.lang.Object
- Returns:
- A string representation of this sync pipe plugin.
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toString
public abstract void toString(java.lang.StringBuilder buffer)
Appends a string representation of this sync pipe plugin to the provided buffer.- Parameters:
buffer
- The buffer to which the string representation should be appended.
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getExamplesArgumentSets
public java.util.Map<java.util.List<java.lang.String>,java.lang.String> getExamplesArgumentSets()
Retrieves a map containing examples of configurations that may be used for this extension. The map key should be a list of sample arguments, and the corresponding value should be a description of the behavior that will be exhibited by the extension when used with that configuration.- Specified by:
getExamplesArgumentSets
in interfaceExampleUsageProvider
- Returns:
- A map containing examples of configurations that may be used for
this extension. It may be
null
or empty if there should not be any example argument sets.
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