Package org.apache.commons.chain.web.javax.servlet

Class PathInfoMapper

java.lang.Object

org.apache.commons.chain.generic.LookupCommand<ServletWebContext>

org.apache.commons.chain.web.javax.servlet.PathInfoMapper

All Implemented Interfaces:

Command<ServletWebContext>, Filter<ServletWebContext>

public class PathInfoMapper
extends LookupCommand<ServletWebContext>

Command that uses the "path info" component of the request URI to select a Command from the appropriate Catalog, and execute it. To use this command, you would typically map an instance of ChainProcessor to a wildcard pattern like "/execute/*" and then arrange that this is the default command to be executed. In such an environment, a request for the context-relative URI "/execute/foo" would cause the "/foo" command to be loaded and executed.

Author:

Craig R. McClanahan

Field Summary

Fields inherited from interface org.apache.commons.chain.Command

CONTINUE_PROCESSING, PROCESSING_COMPLETE

Constructor Summary

Constructors

Constructor	Description
PathInfoMapper()	The Default-Constructor for this class.

Method Summary

Modifier and Type	Method	Description
protected Catalog<ServletWebContext>	getCatalog(ServletWebContext context)	Return the Catalog to look up the Command in.
String	getCatalogKey()	Deprecated. Use catalogName to specify the name of the catalog in the catalog factory.
protected String	getCommandName(ServletWebContext context)	Look up the extra path information for this request, and use it to select an appropriate Command to be executed.
void	setCatalogKey(String catalogKey)	Deprecated. Use catalogName to specify the name of the catalog in the catalog factory.

Methods inherited from class org.apache.commons.chain.generic.LookupCommand

execute, getCatalogFactory, getCatalogName, getCommand, getName, getNameKey, isIgnoreExecuteResult, isIgnorePostprocessResult, isOptional, postprocess, setCatalogFactory, setCatalogName, setIgnoreExecuteResult, setIgnorePostprocessResult, setName, setNameKey, setOptional

Methods inherited from class java.lang.Object

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

Constructor Details

PathInfoMapper

public PathInfoMapper()

The Default-Constructor for this class.

Method Details

getCatalogKey

@Deprecated
public String getCatalogKey()

Deprecated.

Use catalogName to specify the name of the catalog in the catalog factory.

Return the context key under which our Catalog has been stored.

Returns:

The context key for the Catalog.

setCatalogKey

@Deprecated
public void setCatalogKey(String catalogKey)

Deprecated.

Use catalogName to specify the name of the catalog in the catalog factory.

Set the context key under which our Catalog has been stored.

Parameters:

catalogKey - The new catalog key

getCommandName

protected String getCommandName(ServletWebContext context)

Look up the extra path information for this request, and use it to select an appropriate Command to be executed.

Overrides:

getCommandName in class LookupCommand<ServletWebContext>

Parameters:

context - Context for the current request

Returns:

The name of the Command instance

Since:

Chain 1.2

getCatalog

protected Catalog<ServletWebContext> getCatalog(ServletWebContext context)

Return the Catalog to look up the Command in.

Overrides:

getCatalog in class LookupCommand<ServletWebContext>

Parameters:

context - Context for this request

Returns:

The catalog.

Throws:

IllegalArgumentException - if no Catalog can be found

Since:

Chain 1.2