asset.pipeline.AssetPipeline.groovy Maven / Gradle / Ivy
/*
* Copyright 2014 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package asset.pipeline
/**
* Provides methods for fetching contents of assets within the asset-pipeline
*
* @author David Estes
*/
class AssetPipeline {
/**
* Used for serving assets in development mode via the AssetController
* This method is NOT recommended for public use as behavior changes in production mode.
*/
static byte[] serveAsset(String uri, String contentType = null, String extension = null, String encoding = null) {
def assetFile = AssetHelper.fileForUri(uri, contentType, extension)
def directiveProcessor = new DirectiveProcessor(contentType)
if (assetFile) {
if(assetFile instanceof GenericAssetFile) {
return assetFile.inputStream.bytes
}
def fileContents = directiveProcessor.compile(assetFile)
encoding = encoding ?: assetFile.encoding
if(encoding) {
return fileContents.getBytes(encoding)
} else {
return fileContents.bytes
}
}
return null
}
/**
* Used for serving assets in development mode without bundling
* This method is NOT recommended for public use as behavior changes in production mode.
*/
static byte[] serveUncompiledAsset(String uri, String contentType, String extension = null, String encoding=null) {
def assetFile = AssetHelper.fileForUri(uri, contentType, extension)
def directiveProcessor = new DirectiveProcessor(contentType)
if (assetFile) {
if(assetFile instanceof GenericAssetFile) {
return assetFile.bytes
}
if(encoding) {
assetFile.encoding = encoding
return directiveProcessor.fileContents(assetFile).getBytes(encoding)
} else {
return directiveProcessor.fileContents(assetFile).bytes
}
}
return null
}
/**
* Used for serving assets in development mode via the AssetController
* This method is NOT recommended for public use as behavior changes in production mode.
*/
static def getDependencyList(String uri, String contentType = null, String extension = null) {
def assetFile = AssetHelper.fileForUri(uri, contentType, extension)
def directiveProcessor = new DirectiveProcessor(contentType)
if (assetFile) {
return directiveProcessor.getFlattenedRequireList(assetFile)
}
return null
}
}