/*
* 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 org.apache.isis.applib.adapters.Parser;
import org.apache.isis.applib.profiles.Localization;
import org.apache.isis.core.commons.authentication.AuthenticationSessionProvider;
import org.apache.isis.core.commons.lang.ClassExtensions;
import org.apache.isis.core.metamodel.adapter.ObjectAdapter;
import org.apache.isis.core.metamodel.adapter.mgr.AdapterManager;
import org.apache.isis.core.metamodel.deployment.DeploymentCategory;
import org.apache.isis.core.metamodel.facetapi.FacetAbstract;
import org.apache.isis.core.metamodel.facetapi.FacetHolder;
import org.apache.isis.core.metamodel.facets.object.parseable.parser.ParseableFacetUsingParser;
import org.apache.isis.core.metamodel.runtimecontext.ServicesInjector;
public abstract class ParseableFacetAbstract extends FacetAbstract implements ParseableFacet {
private final Class<?> parserClass;
// to delegate to
private final ParseableFacetUsingParser parseableFacetUsingParser;
public ParseableFacetAbstract(final String candidateParserName, final Class<?> candidateParserClass, final FacetHolder holder, DeploymentCategory deploymentCategory, final AuthenticationSessionProvider authenticationSessionProvider, final ServicesInjector dependencyInjector, final AdapterManager adapterManager) {
super(ParseableFacet.class, holder, Derivation.NOT_DERIVED);
this.parserClass = ParserUtil.parserOrNull(candidateParserClass, candidateParserName);
this.parseableFacetUsingParser = isValid()?
createParser(holder, deploymentCategory, authenticationSessionProvider, dependencyInjector, adapterManager):null;
}
private ParseableFacetUsingParser createParser(final FacetHolder holder, DeploymentCategory deploymentCategory, final AuthenticationSessionProvider authenticationSessionProvider, final ServicesInjector dependencyInjector, final AdapterManager adapterManager) {
final Parser<?> parser = (Parser<?>) ClassExtensions.newInstance(parserClass, FacetHolder.class, holder);
return new ParseableFacetUsingParser(parser, holder, deploymentCategory, authenticationSessionProvider, dependencyInjector, adapterManager);
}
/**
* Discover whether either of the candidate parser name or class is valid.
*/
public boolean isValid() {
return parserClass != null;
}
/**
* Guaranteed to implement the {@link Parser} class, thanks to generics in
* the applib.
*/
public Class<?> getParserClass() {
return parserClass;
}
@Override
protected String toStringValues() {
return parserClass.getName();
}
@Override
public ObjectAdapter parseTextEntry(final ObjectAdapter original, final String entryText, final Localization localization) {
return parseableFacetUsingParser.parseTextEntry(original, entryText, localization);
}
@Override
public String parseableTitle(final ObjectAdapter existing) {
return parseableFacetUsingParser.parseableTitle(existing);
}
}