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CommonValueSerializers.java
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CommonValueSerializers.java
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/**
* Copyright (C) 2022 Czech Technical University in Prague
*
* This program is free software: you can redistribute it and/or modify it under
* the terms of the GNU General Public License as published by the Free Software
* Foundation, either version 3 of the License, or (at your option) any
* later version.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
* FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
* details. You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package cz.cvut.kbss.jsonld.serialization;
import cz.cvut.kbss.jsonld.serialization.traversal.SerializationContext;
import java.util.HashMap;
import java.util.Map;
import java.util.Objects;
import java.util.Optional;
/**
* Manages serializers for a single {@link JsonLdSerializer} instance.
*/
public class CommonValueSerializers implements ValueSerializers {
private final Map<Class<?>, ValueSerializer<?>> serializers = new HashMap<>();
private final ValueSerializer<?> defaultSerializer = new DefaultValueSerializer(new MultilingualStringSerializer());
@Override
public <T> boolean hasCustomSerializer(Class<T> type) {
return serializers.containsKey(type);
}
@Override
public <T> Optional<ValueSerializer<T>> getSerializer(SerializationContext<T> ctx) {
return Optional.ofNullable((ValueSerializer<T>) serializers.get(ctx.getValue().getClass()));
}
@Override
public <T> ValueSerializer<T> getOrDefault(SerializationContext<T> ctx) {
return (ValueSerializer<T>) serializers.getOrDefault(ctx.getValue().getClass(), defaultSerializer);
}
@Override
public <T> void registerSerializer(Class<T> forType, ValueSerializer<T> serializer) {
Objects.requireNonNull(forType);
Objects.requireNonNull(serializer);
serializers.put(forType, serializer);
}
}