jdk8-mips64-public/jaxws: comparison src/share/jaxws_classes/com/sun/xml/internal/bind/v2/runtime/Coordinator.java

-:88b85470e72c
+:f50545b5e2f1
+/*
+* 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.util.HashMap;
+import javax.xml.bind.ValidationEvent;
+import javax.xml.bind.ValidationEventHandler;
+import javax.xml.bind.ValidationEventLocator;
+import javax.xml.bind.annotation.adapters.XmlAdapter;
+import javax.xml.bind.helpers.ValidationEventImpl;
+import com.sun.xml.internal.bind.v2.ClassFactory;
+import com.sun.xml.internal.bind.v2.runtime.unmarshaller.UnmarshallingContext;
+import org.xml.sax.ErrorHandler;
+import org.xml.sax.SAXException;
+import org.xml.sax.SAXParseException;
+/**
+* Object that coordinates the marshalling/unmarshalling.
+*
+* <p>
+* This class takes care of the logic that allows code to obtain
+* {@link UnmarshallingContext} and {@link XMLSerializer} instances
+* during the unmarshalling/marshalling.
+*
+* <p>
+* This is done by using a {@link ThreadLocal}. Therefore one unmarshalling/marshalling
+* episode has to be done from the beginning till end by the same thread.
+* (Note that the same {@link Coordinator} can be then used by a different thread
+* for an entirely different episode.)
+*
+* This class also maintains the user-configured instances of {@link XmlAdapter}s.
+*
+* <p>
+* This class implements {@link ErrorHandler} and propages erros to this object
+* as the {@link ValidationEventHandler}, which will be implemented in a derived class.
+*
+* @author Kohsuke Kawaguchi
+*/
+public abstract class Coordinator implements ErrorHandler, ValidationEventHandler {
+private final HashMap<Class<? extends XmlAdapter>,XmlAdapter> adapters =
+new HashMap<Class<? extends XmlAdapter>,XmlAdapter>();
+public final XmlAdapter putAdapter(Class<? extends XmlAdapter> c, XmlAdapter a) {
+if(a==null)
+return adapters.remove(c);
+else
+return adapters.put(c,a);
+}
+/**
+* Gets the instance of the adapter.
+*
+* @return
+*      always non-null.
+*/
+public final <T extends XmlAdapter> T getAdapter(Class<T> key) {
+T v = key.cast(adapters.get(key));
+if(v==null) {
+v = ClassFactory.create(key);
+putAdapter(key,v);
+}
+return v;
+}
+public <T extends XmlAdapter> boolean containsAdapter(Class<T> type) {
+return adapters.containsKey(type);
+}
+/**
+* The {@link Coordinator} in charge before this {@link Coordinator}.
+*/
+private Object old;
+/**
+* A 'pointer' to a {@link Coordinator} that keeps track of the currently active {@link Coordinator}.
+* Having this improves the runtime performance.
+*/
+private Object[] table;
+/**
+* When we set {@link #table} to null, record who did it.
+* This is for trouble-shooting a possible concurrency issue reported at:
+* http://forums.java.net/jive/thread.jspa?threadID=15132
+*/
+public Exception guyWhoSetTheTableToNull;
+/**
+* Associates this {@link Coordinator} with the current thread.
+* Should be called at the very beginning of the episode.
+*/
+protected final void setThreadAffinity() {
+table = activeTable.get();
+assert table!=null;
+}
+/**
+* Dis-associate this {@link Coordinator} with the current thread.
+* Sohuld be called at the end of the episode to avoid memory leak.
+*/
+protected final void resetThreadAffinity() {
+if (activeTable != null) {
+activeTable.remove();
+}
+if(debugTableNPE)
+guyWhoSetTheTableToNull = new Exception(); // remember that we set it to null
+table = null;
+}
+/**
+* Called whenever an execution flow enters the realm of this {@link Coordinator}.
+*/
+protected final void pushCoordinator() {
+old = table[0];
+table[0] = this;
+}
+/**
+* Called whenever an execution flow exits the realm of this {@link Coordinator}.
+*/
+protected final void popCoordinator() {
+assert table[0]==this;
+table[0] = old;
+old = null; // avoid memory leak
+}
+public static Coordinator _getInstance() {
+return (Coordinator) activeTable.get()[0];
+}
+// this much is necessary to avoid calling get and set twice when we push.
+private static final ThreadLocal<Object[]> activeTable = new ThreadLocal<Object[]>() {
+@Override
+public Object[] initialValue() {
+return new Object[1];
+}
+};
+//
+//
+// ErrorHandler implementation
+//
+//
+/**
+* Gets the current location. Used for reporting the error source location.
+*/
+protected abstract ValidationEventLocator getLocation();
+public final void error(SAXParseException exception) throws SAXException {
+propagateEvent( ValidationEvent.ERROR, exception );
+}
+public final void warning(SAXParseException exception) throws SAXException {
+propagateEvent( ValidationEvent.WARNING, exception );
+}
+public final void fatalError(SAXParseException exception) throws SAXException {
+propagateEvent( ValidationEvent.FATAL_ERROR, exception );
+}
+private void propagateEvent( int severity, SAXParseException saxException )
+throws SAXException {
+ValidationEventImpl ve =
+new ValidationEventImpl( severity, saxException.getMessage(), getLocation() );
+Exception e = saxException.getException();
+if( e != null ) {
+ve.setLinkedException( e );
+} else {
+ve.setLinkedException( saxException );
+}
+// call the client's event handler.  If it returns false, then bail-out
+// and terminate the unmarshal operation.
+boolean result = handleEvent( ve );
+if( ! result ) {
+// bail-out of the parse with a SAX exception, but convert it into
+// an UnmarshalException back in in the AbstractUnmarshaller
+throw saxException;
+}
+}
+public static boolean debugTableNPE;
+static {
+try {
+debugTableNPE = Boolean.getBoolean(Coordinator.class.getName()+".debugTableNPE");
+} catch (SecurityException t) {
+}
+}
+}

Mercurial > jdk8-mips64-public > jaxws / file comparison

comparison: src/share/jaxws_classes/com/sun/xml/internal/bind/v2/runtime/Coordinator.java

src/share/jaxws_classes/com/sun/xml/internal/bind/v2/runtime/Coordinator.java