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* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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
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package org.apache.isis.core.metamodel.facets.members.cssclass.annotprop;
import java.lang.reflect.Method;
import java.util.Map;
import java.util.StringTokenizer;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import com.google.common.base.Strings;
import com.google.common.collect.Maps;
import org.apache.isis.core.commons.config.ConfigurationConstants;
import org.apache.isis.core.metamodel.facetapi.FacetHolder;
import org.apache.isis.core.metamodel.facetapi.FacetUtil;
import org.apache.isis.core.metamodel.facetapi.FeatureType;
import org.apache.isis.core.metamodel.facets.ContributeeMemberFacetFactory;
import org.apache.isis.core.metamodel.facets.FacetFactoryAbstract;
import org.apache.isis.core.metamodel.facets.FacetedMethod;
import org.apache.isis.core.metamodel.facets.members.cssclass.CssClassFacet;
import org.apache.isis.core.metamodel.spec.feature.ObjectAction;
import org.apache.isis.core.metamodel.spec.feature.ObjectMember;
public class CssClassFacetOnActionFromConfiguredRegexFactory extends FacetFactoryAbstract implements ContributeeMemberFacetFactory {
public CssClassFacetOnActionFromConfiguredRegexFactory() {
super(FeatureType.ACTIONS_ONLY);
}
@Override
public void process(final ProcessMethodContext processMethodContext) {
final FacetedMethod facetHolder = processMethodContext.getFacetHolder();
if(facetHolder.containsDoOpFacet(CssClassFacet.class)) {
return;
}
final Method method = processMethodContext.getMethod();
final String name = method.getName();
// bit of a bodge... we want to ignore any service actions; any contributed actions will be picked up below
// in process(final ProcessContributeeMemberContext processMemberContext)
//
// if we don't do this, then any contributed properties or collections end up picking up the CssClass; almost
// certainly not what is expected/required.
final Class<?> owningType = facetHolder.getOwningType();
final Object service = servicesInjector.lookupService(owningType);
if(service != null) {
return;
}
CssClassFacet cssClassFacet = createFromConfiguredRegexIfPossible(name, facetHolder);
// no-op if null
FacetUtil.addFacet(cssClassFacet);
}
@Override
public void process(final ProcessContributeeMemberContext processMemberContext) {
final ObjectMember objectMember = processMemberContext.getFacetHolder();
if(!(objectMember instanceof ObjectAction)) {
return;
}
if(objectMember.containsDoOpFacet(CssClassFacet.class)) {
return;
}
final String id = objectMember.getId();
CssClassFacet cssClassFacet = createFromConfiguredRegexIfPossible(id, objectMember);
// no-op if null
FacetUtil.addFacet(cssClassFacet);
}
//region > cssClassFromPattern
private final static Pattern CSS_CLASS_REGEX_PATTERN = Pattern.compile("([^:]+):(.+)");
private CssClassFacet createFromConfiguredRegexIfPossible(String name, FacetHolder facetHolder) {
String value = cssIfAnyFor(name);
return value != null
? new CssClassFacetOnActionFromConfiguredRegex(value, facetHolder)
: null;
}
private String cssIfAnyFor(String name) {
final Map<Pattern, String> cssClassByPattern = getCssClassByPattern();
for (Map.Entry<Pattern, String> entry : cssClassByPattern.entrySet()) {
final Pattern pattern = entry.getKey();
final String cssClass = entry.getValue();
if(pattern.matcher(name).matches()) {
return cssClass;
}
}
return null;
}
private Map<Pattern,String> cssClassByPattern;
private Map<Pattern, String> getCssClassByPattern() {
if (cssClassByPattern == null) {
// build lazily
final String cssClassPatterns = getConfiguration().getString("isis.reflector.facet.cssClass.patterns");
this.cssClassByPattern = buildCssClassByPattern(cssClassPatterns);
}
return cssClassByPattern;
}
private static Map<Pattern, String> buildCssClassByPattern(String cssClassPatterns) {
final Map<Pattern,String> cssClassByPattern = Maps.newLinkedHashMap();
if(cssClassPatterns != null) {
final StringTokenizer regexToCssClasses = new StringTokenizer(cssClassPatterns, ConfigurationConstants.LIST_SEPARATOR);
final Map<String,String> cssClassByRegex = Maps.newLinkedHashMap();
while (regexToCssClasses.hasMoreTokens()) {
String regexToCssClass = regexToCssClasses.nextToken().trim();
if (Strings.isNullOrEmpty(regexToCssClass)) {
continue;
}
final Matcher matcher = CSS_CLASS_REGEX_PATTERN.matcher(regexToCssClass);
if(matcher.matches()) {
cssClassByRegex.put(matcher.group(1), matcher.group(2));
}
}
for (Map.Entry<String, String> entry : cssClassByRegex.entrySet()) {
final String regex = entry.getKey();
final String cssClass = entry.getValue();
cssClassByPattern.put(Pattern.compile(regex), cssClass);
}
}
return cssClassByPattern;
}
//endregion
}