/*
* 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
* under the License.
*/
package org.apache.isis.core.metamodel.facets.object.parseable;
import com.google.common.base.Strings;
import org.apache.isis.applib.adapters.Parser;
import org.apache.isis.core.commons.config.IsisConfiguration;
import org.apache.isis.core.commons.lang.ClassUtil;
import org.apache.isis.core.metamodel.facetapi.FacetHolder;
public final class ParserUtil {
private ParserUtil() {
}
public static final String PARSER_NAME_KEY_PREFIX = "isis.reflector.java.facets.parser.";
public static final String PARSER_NAME_KEY_SUFFIX = ".parserName";
public static String parserNameFromConfiguration(final Class<?> type, final IsisConfiguration configuration) {
final String key = PARSER_NAME_KEY_PREFIX + type.getCanonicalName() + PARSER_NAME_KEY_SUFFIX;
final String parserName = configuration.getString(key);
return !Strings.isNullOrEmpty(parserName) ? parserName : null;
}
@SuppressWarnings("unchecked")
public static Class<? extends Parser<?>> parserOrNull(final Class<?> candidateClass, final String classCandidateName) {
@SuppressWarnings("rawtypes")
final Class type = candidateClass != null ? ClassUtil.implementingClassOrNull(candidateClass.getName(), Parser.class, FacetHolder.class) : null;
return type != null ? type : ClassUtil.implementingClassOrNull(classCandidateName, Parser.class, FacetHolder.class);
}
}