1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/src/share/jaxws_classes/com/sun/xml/internal/bind/v2/runtime/Coordinator.java Wed Apr 27 01:27:09 2016 +0800
1.3 @@ -0,0 +1,172 @@
1.4 +/*
1.5 + * Copyright (c) 1997, 2011, Oracle and/or its affiliates. All rights reserved.
1.6 + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
1.7 + *
1.8 + * This code is free software; you can redistribute it and/or modify it
1.9 + * under the terms of the GNU General Public License version 2 only, as
1.10 + * published by the Free Software Foundation. Oracle designates this
1.11 + * particular file as subject to the "Classpath" exception as provided
1.12 + * by Oracle in the LICENSE file that accompanied this code.
1.13 + *
1.14 + * This code is distributed in the hope that it will be useful, but WITHOUT
1.15 + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
1.16 + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
1.17 + * version 2 for more details (a copy is included in the LICENSE file that
1.18 + * accompanied this code).
1.19 + *
1.20 + * You should have received a copy of the GNU General Public License version
1.21 + * 2 along with this work; if not, write to the Free Software Foundation,
1.22 + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
1.23 + *
1.24 + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
1.25 + * or visit www.oracle.com if you need additional information or have any
1.26 + * questions.
1.27 + */
1.28 +
1.29 +package com.sun.xml.internal.bind.v2.runtime;
1.30 +
1.31 +import java.util.HashMap;
1.32 +
1.33 +import javax.xml.bind.ValidationEvent;
1.34 +import javax.xml.bind.ValidationEventHandler;
1.35 +import javax.xml.bind.ValidationEventLocator;
1.36 +import javax.xml.bind.annotation.adapters.XmlAdapter;
1.37 +import javax.xml.bind.helpers.ValidationEventImpl;
1.38 +
1.39 +import com.sun.xml.internal.bind.v2.ClassFactory;
1.40 +import com.sun.xml.internal.bind.v2.runtime.unmarshaller.UnmarshallingContext;
1.41 +
1.42 +import org.xml.sax.ErrorHandler;
1.43 +import org.xml.sax.SAXException;
1.44 +import org.xml.sax.SAXParseException;
1.45 +
1.46 +/**
1.47 + * Object that coordinates the marshalling/unmarshalling.
1.48 + *
1.49 + * <p>
1.50 + * This class takes care of the logic that allows code to obtain
1.51 + * {@link UnmarshallingContext} and {@link XMLSerializer} instances
1.52 + * during the unmarshalling/marshalling.
1.53 + *
1.54 + * <p>
1.55 + * This is done by using a {@link ThreadLocal}. Therefore one unmarshalling/marshalling
1.56 + * episode has to be done from the beginning till end by the same thread.
1.57 + * (Note that the same {@link Coordinator} can be then used by a different thread
1.58 + * for an entirely different episode.)
1.59 + *
1.60 + * This class also maintains the user-configured instances of {@link XmlAdapter}s.
1.61 + *
1.62 + * <p>
1.63 + * This class implements {@link ErrorHandler} and propages erros to this object
1.64 + * as the {@link ValidationEventHandler}, which will be implemented in a derived class.
1.65 + *
1.66 + * @author Kohsuke Kawaguchi
1.67 + */
1.68 +public abstract class Coordinator implements ErrorHandler, ValidationEventHandler {
1.69 +
1.70 + private final HashMap<Class<? extends XmlAdapter>,XmlAdapter> adapters =
1.71 + new HashMap<Class<? extends XmlAdapter>,XmlAdapter>();
1.72 +
1.73 +
1.74 + public final XmlAdapter putAdapter(Class<? extends XmlAdapter> c, XmlAdapter a) {
1.75 + if(a==null)
1.76 + return adapters.remove(c);
1.77 + else
1.78 + return adapters.put(c,a);
1.79 + }
1.80 +
1.81 + /**
1.82 + * Gets the instance of the adapter.
1.83 + *
1.84 + * @return
1.85 + * always non-null.
1.86 + */
1.87 + public final <T extends XmlAdapter> T getAdapter(Class<T> key) {
1.88 + T v = key.cast(adapters.get(key));
1.89 + if(v==null) {
1.90 + v = ClassFactory.create(key);
1.91 + putAdapter(key,v);
1.92 + }
1.93 + return v;
1.94 + }
1.95 +
1.96 + public <T extends XmlAdapter> boolean containsAdapter(Class<T> type) {
1.97 + return adapters.containsKey(type);
1.98 + }
1.99 +
1.100 + // this much is necessary to avoid calling get and set twice when we push.
1.101 + private static final ThreadLocal<Coordinator> activeTable = new ThreadLocal<Coordinator>();
1.102 +
1.103 + /**
1.104 + * The {@link Coordinator} in charge before this {@link Coordinator}.
1.105 + */
1.106 + private Coordinator old;
1.107 +
1.108 + /**
1.109 + * Called whenever an execution flow enters the realm of this {@link Coordinator}.
1.110 + */
1.111 + protected final void pushCoordinator() {
1.112 + old = activeTable.get();
1.113 + activeTable.set(this);
1.114 + }
1.115 +
1.116 + /**
1.117 + * Called whenever an execution flow exits the realm of this {@link Coordinator}.
1.118 + */
1.119 + protected final void popCoordinator() {
1.120 + if (old != null)
1.121 + activeTable.set(old);
1.122 + else
1.123 + activeTable.remove();
1.124 + old = null; // avoid memory leak
1.125 + }
1.126 +
1.127 + public static Coordinator _getInstance() {
1.128 + return activeTable.get();
1.129 + }
1.130 +
1.131 +//
1.132 +//
1.133 +// ErrorHandler implementation
1.134 +//
1.135 +//
1.136 + /**
1.137 + * Gets the current location. Used for reporting the error source location.
1.138 + */
1.139 + protected abstract ValidationEventLocator getLocation();
1.140 +
1.141 + public final void error(SAXParseException exception) throws SAXException {
1.142 + propagateEvent( ValidationEvent.ERROR, exception );
1.143 + }
1.144 +
1.145 + public final void warning(SAXParseException exception) throws SAXException {
1.146 + propagateEvent( ValidationEvent.WARNING, exception );
1.147 + }
1.148 +
1.149 + public final void fatalError(SAXParseException exception) throws SAXException {
1.150 + propagateEvent( ValidationEvent.FATAL_ERROR, exception );
1.151 + }
1.152 +
1.153 + private void propagateEvent( int severity, SAXParseException saxException )
1.154 + throws SAXException {
1.155 +
1.156 + ValidationEventImpl ve =
1.157 + new ValidationEventImpl( severity, saxException.getMessage(), getLocation() );
1.158 +
1.159 + Exception e = saxException.getException();
1.160 + if( e != null ) {
1.161 + ve.setLinkedException( e );
1.162 + } else {
1.163 + ve.setLinkedException( saxException );
1.164 + }
1.165 +
1.166 + // call the client's event handler. If it returns false, then bail-out
1.167 + // and terminate the unmarshal operation.
1.168 + boolean result = handleEvent( ve );
1.169 + if( ! result ) {
1.170 + // bail-out of the parse with a SAX exception, but convert it into
1.171 + // an UnmarshalException back in in the AbstractUnmarshaller
1.172 + throw saxException;
1.173 + }
1.174 + }
1.175 +}
