Package org.springframework.web.servlet.resource

Class AbstractVersionStrategy

java.lang.Object

org.springframework.web.servlet.resource.AbstractVersionStrategy

All Implemented Interfaces:

VersionPathStrategy, VersionStrategy

Direct Known Subclasses:

ContentVersionStrategy, FixedVersionStrategy

public abstract class AbstractVersionStrategy
extends Object
implements VersionStrategy

Abstract base class for VersionStrategy implementations.

Supports versions as:

• prefix in the request path, like "version/static/myresource.js"
• file name suffix in the request path, like "static/myresource-version.js"

Note: This base class does not provide support for generating the version string.

Since:

4.1

Author:

Brian Clozel, Rossen Stoyanchev

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
protected static class	AbstractVersionStrategy.FileNameVersionPathStrategy	File name-based VersionPathStrategy, for example, "path/foo-{version}.css".
protected static class	AbstractVersionStrategy.PrefixVersionPathStrategy	A prefix-based VersionPathStrategy, for example, "{version}/path/foo.js".

Field Summary

Fields

Modifier and Type	Field	Description
protected final org.apache.commons.logging.Log	logger

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	AbstractVersionStrategy(VersionPathStrategy pathStrategy)

Method Summary

Modifier and Type	Method	Description
String	addVersion(String requestPath, String version)	Add a version to the given request path.
@Nullable String	extractVersion(String requestPath)	Extract the resource version from the request path.
VersionPathStrategy	getVersionPathStrategy()
String	removeVersion(String requestPath, String version)	Remove the version from the request path.

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.springframework.web.servlet.resource.VersionStrategy

getResourceVersion

Field Details

logger

protected final org.apache.commons.logging.Log logger

Constructor Details

AbstractVersionStrategy

protected AbstractVersionStrategy(VersionPathStrategy pathStrategy)

Method Details

getVersionPathStrategy

public VersionPathStrategy getVersionPathStrategy()

extractVersion

public @Nullable String extractVersion(String requestPath)

Description copied from interface: VersionPathStrategy

Extract the resource version from the request path.

Specified by:

extractVersion in interface VersionPathStrategy

Parameters:

requestPath - the request path to check

Returns:

the version string or null if none was found

removeVersion

public String removeVersion(String requestPath,
 String version)

Description copied from interface: VersionPathStrategy

Remove the version from the request path. It is assumed that the given version was extracted via VersionPathStrategy.extractVersion(String).

Specified by:

removeVersion in interface VersionPathStrategy

Parameters:

requestPath - the request path of the resource being resolved

version - the version obtained from VersionPathStrategy.extractVersion(String)

Returns:

the request path with the version removed

addVersion

public String addVersion(String requestPath,
 String version)

Description copied from interface: VersionPathStrategy

Add a version to the given request path.

Specified by:

addVersion in interface VersionPathStrategy

Parameters:

requestPath - the requestPath

version - the version

Returns:

the requestPath updated with a version string