/*
* Copyright 2013 eXo Platform SAS
*
* 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 juzu.plugin.less4j.impl;
import juzu.asset.AssetLocation;
import juzu.impl.plugin.application.metamodel.ApplicationMetaModel;
import juzu.impl.plugin.application.metamodel.ApplicationMetaModelPlugin;
import juzu.impl.plugin.asset.Asset;
import juzu.impl.plugin.asset.AssetsMetaModel;
import juzu.impl.metamodel.AnnotationKey;
import juzu.impl.metamodel.AnnotationState;
import juzu.impl.compiler.BaseProcessor;
import juzu.impl.compiler.MessageCode;
import juzu.impl.compiler.ProcessingContext;
import juzu.impl.common.Logger;
import juzu.plugin.less4j.Less;
import java.io.Serializable;
import java.util.ArrayList;
import java.util.Collections;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Set;
/** @author <a href="mailto:julien.viet@exoplatform.com">Julien Viet</a> */
public class MetaModelPluginImpl extends ApplicationMetaModelPlugin {
/** . */
public static final MessageCode GENERAL_PROBLEM = new MessageCode(
"GENERAL_PROBLEM",
"%1$s:\n%2$s");
/** . */
public static final MessageCode COMPILATION_ERROR = new MessageCode(
"LESS_COMPILATION_ERROR",
"%1$s in %2$s on line %3$s:\n%4$s");
/** . */
public static final MessageCode MALFORMED_PATH = new MessageCode("LESS_MALFORMED_PATH", "The resource path %1$s is malformed");
/** . */
static final Logger log = BaseProcessor.getLogger(MetaModelPluginImpl.class);
public MetaModelPluginImpl() {
super("less");
}
@Override
public void init(ApplicationMetaModel metaModel) {
}
@Override
public Set<Class<? extends java.lang.annotation.Annotation>> init(ProcessingContext env) {
return Collections.<Class<? extends java.lang.annotation.Annotation>>singleton(Less.class);
}
@Override
public void processAnnotationAdded(ApplicationMetaModel metaModel, AnnotationKey key, AnnotationState added) {
AssetsMetaModel assetsMetaModel = metaModel.getChild(AssetsMetaModel.KEY);
List<LessAsset> assets = getAssets(assetsMetaModel, added);
for (LessAsset asset : assets) {
assetsMetaModel.addAsset(asset);
}
}
@Override
public void processAnnotationRemoved(ApplicationMetaModel metaModel, AnnotationKey key, AnnotationState removed) {
AssetsMetaModel assetsMetaModel = metaModel.getChild(AssetsMetaModel.KEY);
List<LessAsset> assets = getAssets(assetsMetaModel, removed);
for (LessAsset asset : assets) {
assetsMetaModel.removeAsset(asset);
}
}
private List<LessAsset> getAssets(
AssetsMetaModel assetsMetaModel,
AnnotationState annotation) {
//
List<LessAsset> assets = Collections.emptyList();
List<AnnotationState> value = (List<AnnotationState>)annotation.get("value");
if (value != null) {
for (AnnotationState assetAnnotation : value) {
//
String assetValue = (String)assetAnnotation.get("value");
// Clone the annotation for modifying it
Map<String, Serializable> state = new HashMap<String, Serializable>(assetAnnotation);
//
if (state.get("id") == null) {
state.put("id", assetValue);
}
Serializable location = state.get("location");
if (location == null) {
state.put("location", AssetLocation.APPLICATION.name());
} else {
if (!location.equals(AssetLocation.APPLICATION.name())) {
throw new UnsupportedOperationException("handle me gracefully");
}
}
//
Asset parsed = new Asset("stylesheet", state);
LessAsset asset = new LessAsset(
parsed.id,
parsed.key.value,
parsed.depends,
parsed.maxAge
);
if (assets.isEmpty()) {
assets = new ArrayList<LessAsset>();
}
assets.add(asset);
}
}
return assets;
}
}