/**
* 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.jooby.internal.hbs;
import java.util.Collections;
import java.util.Map;
import java.util.Map.Entry;
import java.util.Set;
import org.jooby.Session;
import com.github.jknack.handlebars.ValueResolver;
/**
* Handlebars value resolver for accessing to {@link Session}, like request and session objects.
*
* @author edgar
*/
public class SessionValueResolver implements ValueResolver {
@Override
public Object resolve(final Object context, final String name) {
Object value = null;
if (context instanceof Session) {
value = ((Session) context).get(name).toOptional().orElse(null);
}
return value == null ? UNRESOLVED : value;
}
@Override
public Object resolve(final Object context) {
if (context instanceof Session) {
return context;
}
return UNRESOLVED;
}
@SuppressWarnings({"unchecked", "rawtypes" })
@Override
public Set<Entry<String, Object>> propertySet(final Object context) {
if (context instanceof Session) {
Map session = ((Session) context).attributes();
return session.entrySet();
}
return Collections.emptySet();
}
}