com.fasterxml.jackson.databind.deser.DefaultDeserializationContext Maven / Gradle / Ivy

Go to download
Show more of this group Show more artifacts with this name
Show all versions of swagger-all Show documentation
swagger-all is a rebundled verison of Swagger as one OSGi bundle.
The newest version!
package com.fasterxml.jackson.databind.deser;

import java.util.*;
import java.util.Map.Entry;

import com.fasterxml.jackson.annotation.ObjectIdGenerator;
import com.fasterxml.jackson.annotation.ObjectIdResolver;
import com.fasterxml.jackson.annotation.ObjectIdGenerator.IdKey;
import com.fasterxml.jackson.annotation.SimpleObjectIdResolver;
import com.fasterxml.jackson.core.JsonParser;
import com.fasterxml.jackson.databind.*;
import com.fasterxml.jackson.databind.cfg.HandlerInstantiator;
import com.fasterxml.jackson.databind.deser.impl.ReadableObjectId;
import com.fasterxml.jackson.databind.deser.impl.ReadableObjectId.Referring;
import com.fasterxml.jackson.databind.introspect.Annotated;
import com.fasterxml.jackson.databind.util.ClassUtil;

/**
 * Complete {@link DeserializationContext} implementation that adds
 * extended API for {@link ObjectMapper} (and {@link ObjectReader})
 * to call, as well as implements certain parts that base class
 * has left abstract.
 * The remaining abstract methods ({@link #createInstance}, {@link #with})
 * are left so that custom implementations will properly implement them
 * to return intended subtype.
 */
public abstract class DefaultDeserializationContext
    extends DeserializationContext
    implements java.io.Serializable // since 2.1
{
    private static final long serialVersionUID = 1L;

    protected transient LinkedHashMap _objectIds;

    private List _objectIdResolvers;

    /**
     * Constructor that will pass specified deserializer factory and
     * cache: cache may be null (in which case default implementation
     * will be used), factory can not be null
     */
    protected DefaultDeserializationContext(DeserializerFactory df, DeserializerCache cache) {
        super(df, cache);
    }
    
    protected DefaultDeserializationContext(DefaultDeserializationContext src,
            DeserializationConfig config, JsonParser jp, InjectableValues values) {
        super(src, config, jp, values);
    }

    protected DefaultDeserializationContext(DefaultDeserializationContext src,
            DeserializerFactory factory) {
        super(src, factory);
    }

    /**
     * @since 2.4.4
     */
    protected DefaultDeserializationContext(DefaultDeserializationContext src) {
        super(src);
    }
    
    /**
     * Method needed to ensure that {@link ObjectMapper#copy} will work
     * properly; specifically, that caches are cleared, but settings
     * will otherwise remain identical; and that no sharing of state
     * occurs.
     * 
     * @since 2.4.4
     */
    public DefaultDeserializationContext copy() {
        throw new IllegalStateException("DefaultDeserializationContext sub-class not overriding copy()");
    }

    /*
    /**********************************************************
    /* Abstract methods impls, Object Id
    /**********************************************************
     */

    @Override
    public ReadableObjectId findObjectId(Object id, ObjectIdGenerator gen, ObjectIdResolver resolverType)
    {
        final ObjectIdGenerator.IdKey key = gen.key(id);
        if (_objectIds == null) {
            _objectIds = new LinkedHashMap();
        } else {
            ReadableObjectId entry = _objectIds.get(key);
            if (entry != null) {
                return entry;
            }
        }

        // Not seen yet, must create entry and configure resolver.
        ObjectIdResolver resolver = null;

        if (_objectIdResolvers == null) {
            _objectIdResolvers = new ArrayList(8);
        } else {
            for (ObjectIdResolver res : _objectIdResolvers) {
                if (res.canUseFor(resolverType)) {
                    resolver = res;
                    break;
                }
            }
        }

        if (resolver == null) {
            resolver = resolverType.newForDeserialization(this);
            /* !!! 18-Jun-2014, pgelinas: Temporary fix for [#490] until real
             *    fix (for jackson-annotations, SimpleObjectIdResolver) can be added.
             */
            if (resolverType instanceof SimpleObjectIdResolver) {
               resolver = new SimpleObjectIdResolver();
            }
            _objectIdResolvers.add(resolver);
        }

        ReadableObjectId entry = new ReadableObjectId(key);
        entry.setResolver(resolver);
        _objectIds.put(key, entry);
        return entry;
    }
    
    @Deprecated // since 2.4
    @Override
    public ReadableObjectId findObjectId(Object id, ObjectIdGenerator gen) {
        return findObjectId(id, gen, new SimpleObjectIdResolver());
    }

    @Override
    public void checkUnresolvedObjectId() throws UnresolvedForwardReference
    {
        if (_objectIds == null) {
            return;
        }

        UnresolvedForwardReference exception = null;
        for (Entry entry : _objectIds.entrySet()) {
            ReadableObjectId roid = entry.getValue();
            if (roid.hasReferringProperties()) {
                if (exception == null) {
                    exception = new UnresolvedForwardReference("Unresolved forward references for: ");
                }
                for (Iterator iterator = roid.referringProperties(); iterator.hasNext();) {
                    Referring referring = iterator.next();
                    exception.addUnresolvedId(roid.getKey().key, referring.getBeanType(), referring.getLocation());
                }
            }
        }
        if (exception != null) {
            throw exception;
        }
    }

    /*
    /**********************************************************
    /* Abstract methods impls, other factory methods
    /**********************************************************
     */
    
    @SuppressWarnings("unchecked")
    @Override
    public JsonDeserializer