de.undercouch.bson4jackson.deserializers.BsonDeserializer.java Source code

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Here is the source code for de.undercouch.bson4jackson.deserializers.BsonDeserializer.java

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// Copyright 2010-2014 Michel Kraemer
//
// Licensed 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 de.undercouch.bson4jackson.deserializers;

import java.io.IOException;

import com.fasterxml.jackson.core.JsonGenerationException;
import com.fasterxml.jackson.core.JsonParser;
import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.databind.DeserializationContext;
import com.fasterxml.jackson.databind.JsonDeserializer;

import de.undercouch.bson4jackson.BsonParser;

/**
 * Base class for BSON deserializers
 * @author Michel Kraemer
 * @since 2.3.2
 */
public abstract class BsonDeserializer<T> extends JsonDeserializer<T> {
    @Override
    public T deserialize(JsonParser jsonParser, DeserializationContext ctxt)
            throws IOException, JsonProcessingException {
        if (!(jsonParser instanceof BsonParser)) {
            throw new JsonGenerationException("BsonDeserializer can " + "only be used with BsonParser");
        }
        return deserialize((BsonParser) jsonParser, ctxt);
    }

    /**
      * Deserialize an object using the given BsonParser
      * @param bp the BsonParser read from
      * @param ctxt context that can be used to access information about
      * this deserialization activity
      * @return the deserialized object
      */
    public abstract T deserialize(BsonParser bp, DeserializationContext ctxt)
            throws IOException, JsonProcessingException;
}