org.apache.tapestry5.internal.webresources

Class AbstractMinimizer

java.lang.Object

org.apache.tapestry5.internal.webresources.AbstractMinimizer

All Implemented Interfaces:

ResourceMinimizer

Direct Known Subclasses:

CSSMinimizer, GoogleClosureMinimizer

public abstract class AbstractMinimizer
extends Object
implements ResourceMinimizer

Base class for resource minimizers.

Since:

5.3

Field Summary

Fields

Modifier and Type	Field and Description
protected org.slf4j.Logger	logger
protected OperationTracker	tracker

Constructor Summary

Constructors

Constructor and Description
AbstractMinimizer(org.slf4j.Logger logger, OperationTracker tracker, AssetChecksumGenerator checksumGenerator, String resourceType)

Method Summary

Methods

Modifier and Type	Method and Description
protected abstract InputStream	doMinimize(StreamableResource resource) Implemented in subclasses to do the actual work.
protected boolean	isEnabled(StreamableResource resource) Determines if the resource can be minimized.
StreamableResource	minimize(StreamableResource input) Checks the content type of the resource and applies an appropriate minimization to it if possible.

Methods inherited from class java.lang.Object

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

Field Detail

logger

protected final org.slf4j.Logger logger

tracker

protected final OperationTracker tracker

Constructor Detail

AbstractMinimizer

public AbstractMinimizer(org.slf4j.Logger logger,
                 OperationTracker tracker,
                 AssetChecksumGenerator checksumGenerator,
                 String resourceType)

Method Detail

minimize

public StreamableResource minimize(StreamableResource input)
                            throws IOException

Description copied from interface: ResourceMinimizer

Checks the content type of the resource and applies an appropriate minimization to it if possible.

Specified by:

minimize in interface ResourceMinimizer

Parameters:

input - to minimize

Returns:

the same resource, or a minimized replacement for the resource

Throws:

IOException

doMinimize

protected abstract InputStream doMinimize(StreamableResource resource)
                                   throws IOException

Implemented in subclasses to do the actual work.

Parameters:

resource - content to minimize

Returns:

stream of minimized content

Throws:

IOException

isEnabled

protected boolean isEnabled(StreamableResource resource)

Determines if the resource can be minimized.

Returns:

true, subclasses may override