org.jboss.dna.graph.request.processor
Class LoggingRequestProcessor

java.lang.Object
  org.jboss.dna.graph.request.processor.RequestProcessor
      org.jboss.dna.graph.request.processor.LoggingRequestProcessor

public class LoggingRequestProcessor
extends RequestProcessor

A RequestProcessor implementation that wraps another and that logs messages at the supplied level.

Author:

Randall Hauch

Constructor Summary

LoggingRequestProcessor(RequestProcessor delegate, Logger logger, Logger.Level level)

Method Summary

void	close() Close this processor, allowing it to clean up any open resources.
void	process(CloneWorkspaceRequest request) Process a request to clone an existing workspace as a new workspace.
void	process(CompositeRequest request) Process a request that is composed of multiple other (non-composite) requests.
void	process(CopyBranchRequest request) Process a request to copy a branch into another location.
void	process(CreateNodeRequest request) Process a request to create a node at a specified location.
void	process(CreateWorkspaceRequest request) Process a request to create a new workspace.
void	process(DeleteBranchRequest request) Process a request to delete a branch at a specified location.
void	process(DestroyWorkspaceRequest request) Process a request to permanently destroy a workspace.
void	process(GetWorkspacesRequest request) Process a request to get the information about the available workspaces.
void	process(MoveBranchRequest request) Process a request to move a branch at a specified location into a different location.
void	process(ReadAllChildrenRequest request) Process a request to read all of the children of a node.
void	process(ReadAllPropertiesRequest request) Process a request to read the properties of a node at the supplied location.
void	process(ReadBlockOfChildrenRequest request) Process a request to read a block of the children of a node.
void	process(ReadBranchRequest request) Process a request to read a branch or subgraph that's below a node at a specified location.
void	process(ReadNextBlockOfChildrenRequest request) Process a request to read the next block of the children of a node, starting after a previously-retrieved child.
void	process(ReadNodeRequest request) Process a request to read the properties and children of a node at the supplied location.
void	process(ReadPropertyRequest request) Process a request to read a single property of a node at the supplied location.
void	process(RemovePropertyRequest request) Process a request to remove the specified property from a node.
void	process(RenameNodeRequest request) Process a request to rename a node specified location into a different location.
void	process(Request request) Process a request by determining the type of request and delegating to the appropriate process method for that type.
void	process(SetPropertyRequest request) Process a request to set the specified property on a node.
void	process(UpdatePropertiesRequest request) Process a request to remove the specified properties from a node.
void	process(VerifyNodeExistsRequest request) Process a request to verify that a node exists at the supplied location.
void	process(VerifyWorkspaceRequest request) Process a request to verify a named workspace.

Methods inherited from class org.jboss.dna.graph.request.processor.RequestProcessor

getExecutionContext, getSourceName

Methods inherited from class java.lang.Object

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

Constructor Detail

LoggingRequestProcessor

public LoggingRequestProcessor(RequestProcessor delegate,
                               Logger logger,
                               Logger.Level level)

Parameters:

delegate - the processor to which this processor delegates

logger - the logger that should be used

level - the level of the log messages; defaults to Logger.Level#TRACE

Method Detail

process

public void process(VerifyWorkspaceRequest request)

Process a request to verify a named workspace.

This method does nothing if the request is null.

Specified by:

process in class RequestProcessor

Parameters:

request - the request

See Also:

RequestProcessor.process(org.jboss.dna.graph.request.VerifyWorkspaceRequest)

process

public void process(GetWorkspacesRequest request)

Process a request to get the information about the available workspaces.

This method does nothing if the request is null.

Specified by:

process in class RequestProcessor

Parameters:

request - the request

See Also:

RequestProcessor.process(org.jboss.dna.graph.request.GetWorkspacesRequest)

process

public void process(CreateWorkspaceRequest request)

Process a request to create a new workspace.

This method does nothing if the request is null.

Specified by:

process in class RequestProcessor

Parameters:

request - the request

See Also:

RequestProcessor.process(org.jboss.dna.graph.request.CreateWorkspaceRequest)

process

public void process(CloneWorkspaceRequest request)

Process a request to clone an existing workspace as a new workspace.

This method does nothing if the request is null.

Specified by:

process in class RequestProcessor

Parameters:

request - the request

See Also:

RequestProcessor.process(org.jboss.dna.graph.request.CloneWorkspaceRequest)

process

public void process(DestroyWorkspaceRequest request)

Process a request to permanently destroy a workspace.

This method does nothing if the request is null.

Specified by:

process in class RequestProcessor

Parameters:

request - the request

See Also:

RequestProcessor.process(org.jboss.dna.graph.request.DestroyWorkspaceRequest)

process

public void process(CopyBranchRequest request)

Process a request to copy a branch into another location.

This method does nothing if the request is null.

Specified by:

process in class RequestProcessor

Parameters:

request - the copy request

See Also:

RequestProcessor.process(org.jboss.dna.graph.request.CopyBranchRequest)

process

public void process(CreateNodeRequest request)

Process a request to create a node at a specified location.

This method does nothing if the request is null.

Specified by:

process in class RequestProcessor

Parameters:

request - the create request

See Also:

RequestProcessor.process(org.jboss.dna.graph.request.CreateNodeRequest)

process

public void process(DeleteBranchRequest request)

Process a request to delete a branch at a specified location.

This method does nothing if the request is null.

Specified by:

process in class RequestProcessor

Parameters:

request - the delete request

See Also:

RequestProcessor.process(org.jboss.dna.graph.request.DeleteBranchRequest)

process

public void process(MoveBranchRequest request)

Process a request to move a branch at a specified location into a different location.

This method does nothing if the request is null.

Specified by:

process in class RequestProcessor

Parameters:

request - the move request

See Also:

RequestProcessor.process(org.jboss.dna.graph.request.MoveBranchRequest)

process

public void process(VerifyNodeExistsRequest request)

Process a request to verify that a node exists at the supplied location.

This method does nothing if the request is null. Unless overridden, this method converts the request that reads the node and uses the result to determine if the node exists.

Overrides:

process in class RequestProcessor

Parameters:

request - the read request

See Also:

RequestProcessor.process(org.jboss.dna.graph.request.VerifyNodeExistsRequest)

process

public void process(ReadAllChildrenRequest request)

Process a request to read all of the children of a node.

This method does nothing if the request is null.

Specified by:

process in class RequestProcessor

Parameters:

request - the read request

See Also:

RequestProcessor.process(org.jboss.dna.graph.request.ReadAllChildrenRequest)

process

public void process(ReadAllPropertiesRequest request)

Process a request to read the properties of a node at the supplied location.

This method does nothing if the request is null.

Specified by:

process in class RequestProcessor

Parameters:

request - the read request

See Also:

RequestProcessor.process(org.jboss.dna.graph.request.ReadAllPropertiesRequest)

process

public void process(UpdatePropertiesRequest request)

Process a request to remove the specified properties from a node.

This method does nothing if the request is null.

Specified by:

process in class RequestProcessor

Parameters:

request - the remove request

See Also:

RequestProcessor.process(org.jboss.dna.graph.request.UpdatePropertiesRequest)

process

public void process(CompositeRequest request)

Process a request that is composed of multiple other (non-composite) requests. If any of the embedded requests has an error after it is processed, the submitted request will be marked with an error.

This method does nothing if the request is null.

Overrides:

process in class RequestProcessor

Parameters:

request - the composite request

See Also:

RequestProcessor.process(org.jboss.dna.graph.request.CompositeRequest)

process

public void process(ReadBlockOfChildrenRequest request)

Process a request to read a block of the children of a node. The block is defined by a starting index and a maximum number of children to include in the block.

This method does nothing if the request is null. The default implementation converts the command to a ReadAllChildrenRequest, and then finds the children within the block. Obviously for large numbers of children, this implementation may not be efficient and may need to be overridden.

Overrides:

process in class RequestProcessor

Parameters:

request - the read request

See Also:

RequestProcessor.process(org.jboss.dna.graph.request.ReadBlockOfChildrenRequest)

process

public void process(ReadNextBlockOfChildrenRequest request)

Process a request to read the next block of the children of a node, starting after a previously-retrieved child.

This method does nothing if the request is null. The default implementation converts the command to a ReadAllChildrenRequest, and then finds the children within the block. Obviously for large numbers of children, this implementation may not be efficient and may need to be overridden.

Overrides:

process in class RequestProcessor

Parameters:

request - the read request

See Also:

RequestProcessor.process(org.jboss.dna.graph.request.ReadNextBlockOfChildrenRequest)

process

public void process(ReadBranchRequest request)

Process a request to read a branch or subgraph that's below a node at a specified location.

This method does nothing if the request is null. The default implementation processes the branch by submitting the equivalent requests to read the nodes and the children. It starts by doing this for the top-level node, then proceeds for each of the children of that node, and so forth.

Overrides:

process in class RequestProcessor

Parameters:

request - the request to read the branch

See Also:

RequestProcessor.process(org.jboss.dna.graph.request.ReadBranchRequest)

process

public void process(ReadNodeRequest request)

Process a request to read the properties and children of a node at the supplied location.

This method does nothing if the request is null. Unless overridden, this method converts the single request into a ReadAllChildrenRequest and a ReadAllPropertiesRequest.

Overrides:

process in class RequestProcessor

Parameters:

request - the read request

See Also:

RequestProcessor.process(org.jboss.dna.graph.request.ReadNodeRequest)

process

public void process(ReadPropertyRequest request)

Process a request to read a single property of a node at the supplied location.

This method does nothing if the request is null. Unless overridden, this method converts the request that reads the node and simply returns the one property.

Overrides:

process in class RequestProcessor

Parameters:

request - the read request

See Also:

RequestProcessor.process(org.jboss.dna.graph.request.ReadPropertyRequest)

process

public void process(SetPropertyRequest request)

Process a request to set the specified property on a node.

This method does nothing if the request is null. Unless overridden, this method converts this request into a UpdatePropertiesRequest.

Overrides:

process in class RequestProcessor

Parameters:

request - the request to set the property

See Also:

RequestProcessor.process(org.jboss.dna.graph.request.SetPropertyRequest)

process

public void process(RemovePropertyRequest request)

Process a request to remove the specified property from a node.

This method does nothing if the request is null. Unless overridden, this method converts this request into a UpdatePropertiesRequest.

Overrides:

process in class RequestProcessor

Parameters:

request - the request to remove the property

See Also:

RequestProcessor.process(org.jboss.dna.graph.request.RemovePropertyRequest)

process

public void process(RenameNodeRequest request)

Process a request to rename a node specified location into a different location.

This method does nothing if the request is null. Unless overridden, this method converts the rename into a move. However, this only works if the request has a path for its location. (If not, this method throws an UnsupportedOperationException and must be overridden.)

Overrides:

process in class RequestProcessor

Parameters:

request - the rename request

See Also:

RequestProcessor.process(org.jboss.dna.graph.request.RenameNodeRequest)

process

public void process(Request request)

Process a request by determining the type of request and delegating to the appropriate process method for that type.

This method does nothing if the request is null.

Overrides:

process in class RequestProcessor

Parameters:

request - the general request

See Also:

RequestProcessor.process(org.jboss.dna.graph.request.Request)

close

public void close()

Close this processor, allowing it to clean up any open resources.

Overrides:

close in class RequestProcessor

See Also:

RequestProcessor.close()