net.sf.mmm.orient.impl.id.OrientIdJsonDeserializer.java Source code

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Here is the source code for net.sf.mmm.orient.impl.id.OrientIdJsonDeserializer.java

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/* Copyright (c) The m-m-m Team, Licensed under the Apache License, Version 2.0
 * http://www.apache.org/licenses/LICENSE-2.0 */
package net.sf.mmm.orient.impl.id;

import java.io.IOException;

import javax.inject.Inject;

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 net.sf.mmm.orient.api.bean.OrientBean;
import net.sf.mmm.orient.api.mapping.OrientBeanMapper;
import net.sf.mmm.orient.base.id.OrientId;
import net.sf.mmm.util.bean.api.Bean;
import net.sf.mmm.util.bean.api.id.Id;

/**
 * An implementation of {@link JsonDeserializer} for {@link Id}.
 *
 * @author hohwille
 * @since 8.0.0
 */
public class OrientIdJsonDeserializer extends JsonDeserializer<OrientId<?>> {

    private OrientBeanMapper beanMapper;

    /**
     * The constructor.
     */
    public OrientIdJsonDeserializer() {
        super();
    }

    /**
     * The constructor.
     * 
     * @param beanMapper the {@link OrientBeanMapper}.
     */
    public OrientIdJsonDeserializer(OrientBeanMapper beanMapper) {
        super();
        this.beanMapper = beanMapper;
    }

    /**
     * @param beanMapper the {@link OrientBeanMapper} to {@link Inject}.
     */
    @Inject
    public void setBeanMapper(OrientBeanMapper beanMapper) {

        this.beanMapper = beanMapper;
    }

    @Override
    public OrientId<?> deserialize(JsonParser p, DeserializationContext ctx)
            throws IOException, JsonProcessingException {

        String idAsString = p.getValueAsString();
        OrientId<?> orientId = OrientId.of(null, idAsString);
        if (orientId != null) {
            OrientBean beanPrototype = this.beanMapper.getBeanPrototype(orientId.getOrid().getClusterId());
            if (beanPrototype != null) {
                Class<? extends Bean> beanClass = beanPrototype.access().getBeanClass();
                orientId = orientId.withType(beanClass);
            }
        }
        return orientId;
    }

}