com.sun.xml.bind.v2.runtime.reflect.AdaptedLister Maven / Gradle / Ivy

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Metro Web Services Runtime OSGi Bundle
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/*
 * Copyright (c) 1997, 2018 Oracle and/or its affiliates. All rights reserved.
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Distribution License v. 1.0, which is available at
 * http://www.eclipse.org/org/documents/edl-v10.php.
 *
 * SPDX-License-Identifier: BSD-3-Clause
 */

package com.sun.xml.bind.v2.runtime.reflect;

import javax.xml.bind.annotation.adapters.XmlAdapter;
import javax.xml.bind.JAXBException;

import com.sun.xml.bind.v2.runtime.Coordinator;
import com.sun.xml.bind.v2.runtime.XMLSerializer;
import com.sun.xml.bind.api.AccessorException;

import org.xml.sax.SAXException;

/**
 * {@link Lister} that adapts individual item types.
 */
final class AdaptedLister extends Lister {
    private final Lister core;
    private final Class> adapter;

    /*package*/ AdaptedLister(
        Lister core,
        Class> adapter) {

        this.core = core;
        this.adapter = adapter;
    }

    private XmlAdapter getAdapter() {
        return Coordinator._getInstance().getAdapter(adapter);
    }

    public ListIterator iterator(PropT prop, XMLSerializer context) {
        return new ListIteratorImpl( core.iterator(prop,context), context );
    }

    public PackT startPacking(BeanT bean, Accessor accessor) throws AccessorException {
        return core.startPacking(bean,accessor);
    }

    public void addToPack(PackT pack, OnWireItemT item) throws AccessorException {
        InMemItemT r;
        try {
            r = getAdapter().unmarshal(item);
        } catch (Exception e) {
            throw new AccessorException(e);
        }
        core.addToPack(pack,r);
    }

    public void endPacking(PackT pack, BeanT bean, Accessor accessor) throws AccessorException {
        core.endPacking(pack,bean,accessor);
    }

    public void reset(BeanT bean, Accessor accessor) throws AccessorException {
        core.reset(bean,accessor);
    }

    private final class ListIteratorImpl implements ListIterator {
        private final ListIterator core;
        private final XMLSerializer serializer;

        public ListIteratorImpl(ListIterator core,XMLSerializer serializer) {
            this.core = core;
            this.serializer = serializer;
        }

        public boolean hasNext() {
            return core.hasNext();
        }

        public OnWireItemT next() throws SAXException, JAXBException {
            InMemItemT next = core.next();
            try {
                return getAdapter().marshal(next);
            } catch (Exception e) {
                serializer.reportError(null,e);
                return null; // recover this error by returning null
            }
        }
    }
}