Java example source code file (BridgeAdapter.java)

This example Java source code file (BridgeAdapter.java) is included in the alvinalexander.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" ^TM.

Learn more about this Java project at its project page.

Java - Java tags/keywords

bridgeadapter, class, contenthandler, dom, inmemory, internalbridge, jaxbexception, marshalexception, node, notnull, onwire, sax, typereference, unmarshallerimpl, xmladapter, xmlserializer

The BridgeAdapter.java Java example source code

/*
 * Copyright (c) 1997, 2011, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.  Oracle designates this
 * particular file as subject to the "Classpath" exception as provided
 * by Oracle in the LICENSE file that accompanied this code.
 *
 * This code 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
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
 * or visit www.oracle.com if you need additional information or have any
 * questions.
 */

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

import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;

import javax.xml.bind.JAXBException;
import javax.xml.bind.MarshalException;
import javax.xml.bind.Marshaller;
import javax.xml.bind.UnmarshalException;
import javax.xml.bind.Unmarshaller;
import javax.xml.bind.annotation.adapters.XmlAdapter;
import javax.xml.namespace.NamespaceContext;
import javax.xml.stream.XMLStreamException;
import javax.xml.stream.XMLStreamReader;
import javax.xml.stream.XMLStreamWriter;
import javax.xml.transform.Result;
import javax.xml.transform.Source;

import com.sun.istack.internal.NotNull;
import com.sun.xml.internal.bind.api.Bridge;
import com.sun.xml.internal.bind.api.TypeReference;
import com.sun.xml.internal.bind.v2.runtime.unmarshaller.UnmarshallerImpl;

import org.w3c.dom.Node;
import org.xml.sax.ContentHandler;
import org.xml.sax.SAXException;

/**
 * {@link Bridge} decorator for {@link XmlAdapter}.
 *
 * @author Kohsuke Kawaguchi
 */
final class BridgeAdapter<OnWire,InMemory> extends InternalBridge {
    private final InternalBridge<OnWire> core;
    private final Class<? extends XmlAdapter adapter;

    public BridgeAdapter(InternalBridge<OnWire> core, Class> adapter) {
        super(core.getContext());
        this.core = core;
        this.adapter = adapter;
    }

    public void marshal(Marshaller m, InMemory inMemory, XMLStreamWriter output) throws JAXBException {
        core.marshal(m,adaptM(m,inMemory),output);
    }

    public void marshal(Marshaller m, InMemory inMemory, OutputStream output, NamespaceContext nsc) throws JAXBException {
        core.marshal(m,adaptM(m,inMemory),output,nsc);
    }

    public void marshal(Marshaller m, InMemory inMemory, Node output) throws JAXBException {
        core.marshal(m,adaptM(m,inMemory),output);
    }

    public void marshal(Marshaller context, InMemory inMemory, ContentHandler contentHandler) throws JAXBException {
        core.marshal(context,adaptM(context,inMemory),contentHandler);
    }

    public void marshal(Marshaller context, InMemory inMemory, Result result) throws JAXBException {
        core.marshal(context,adaptM(context,inMemory),result);
    }

    private OnWire adaptM(Marshaller m,InMemory v) throws JAXBException {
        XMLSerializer serializer = ((MarshallerImpl)m).serializer;
        serializer.pushCoordinator();
        try {
            return _adaptM(serializer, v);
        } finally {
            serializer.popCoordinator();
        }
    }

    private OnWire _adaptM(XMLSerializer serializer, InMemory v) throws MarshalException {
        XmlAdapter<OnWire,InMemory> a = serializer.getAdapter(adapter);
        try {
            return a.marshal(v);
        } catch (Exception e) {
            serializer.handleError(e,v,null);
            throw new MarshalException(e);
        }
    }


    public @NotNull InMemory unmarshal(Unmarshaller u, XMLStreamReader in) throws JAXBException {
        return adaptU(u, core.unmarshal(u,in));
    }

    public @NotNull InMemory unmarshal(Unmarshaller u, Source in) throws JAXBException {
        return adaptU(u, core.unmarshal(u,in));
    }

    public @NotNull InMemory unmarshal(Unmarshaller u, InputStream in) throws JAXBException {
        return adaptU(u, core.unmarshal(u,in));
    }

    public @NotNull InMemory unmarshal(Unmarshaller u, Node n) throws JAXBException {
        return adaptU(u, core.unmarshal(u,n));
    }

    public TypeReference getTypeReference() {
        return core.getTypeReference();
    }

    private @NotNull InMemory adaptU(Unmarshaller _u, OnWire v) throws JAXBException {
        UnmarshallerImpl u = (UnmarshallerImpl) _u;
        XmlAdapter<OnWire,InMemory> a = u.coordinator.getAdapter(adapter);
        u.coordinator.pushCoordinator();
        try {
            return a.unmarshal(v);
        } catch (Exception e) {
            throw new UnmarshalException(e);
        } finally {
            u.coordinator.popCoordinator();
        }
    }

    void marshal(InMemory o, XMLSerializer out) throws IOException, SAXException, XMLStreamException {
        try {
            core.marshal(_adaptM( XMLSerializer.getInstance(), o ), out );
        } catch (MarshalException e) {
            // recover from error by not marshalling this element.
        }
    }
}