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/unmarshaller/Scope.java Wed Apr 27 01:27:09 2016 +0800
1.3 @@ -0,0 +1,136 @@
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.unmarshaller;
1.30 +
1.31 +import com.sun.xml.internal.bind.api.AccessorException;
1.32 +import com.sun.xml.internal.bind.v2.runtime.reflect.Accessor;
1.33 +import com.sun.xml.internal.bind.v2.runtime.reflect.Lister;
1.34 +
1.35 +import org.xml.sax.SAXException;
1.36 +
1.37 +/**
1.38 + * Holds the information about packing scope.
1.39 + *
1.40 + * <p>
1.41 + * When no packing is started yet, all the fields should be set to null.
1.42 + *
1.43 + * @author Kohsuke Kawaguchi
1.44 + */
1.45 +public final class Scope<BeanT,PropT,ItemT,PackT> {
1.46 +
1.47 + public final UnmarshallingContext context;
1.48 +
1.49 + private BeanT bean;
1.50 + private Accessor<BeanT,PropT> acc;
1.51 + private PackT pack;
1.52 + private Lister<BeanT,PropT,ItemT,PackT> lister;
1.53 +
1.54 + Scope(UnmarshallingContext context) {
1.55 + this.context = context;
1.56 + }
1.57 +
1.58 + /**
1.59 + * Returns true if this scope object is filled by a packing in progress.
1.60 + */
1.61 + public boolean hasStarted() {
1.62 + return bean!=null;
1.63 + }
1.64 +
1.65 + /**
1.66 + * Initializes all the fields to null.
1.67 + */
1.68 + public void reset() {
1.69 + if(bean==null) {
1.70 + // already initialized
1.71 + assert clean();
1.72 + return;
1.73 + }
1.74 +
1.75 + bean = null;
1.76 + acc = null;
1.77 + pack = null;
1.78 + lister = null;
1.79 + }
1.80 +
1.81 + /**
1.82 + * Finishes up the current packing in progress (if any) and
1.83 + * resets this object.
1.84 + */
1.85 + public void finish() throws AccessorException {
1.86 + if(hasStarted()) {
1.87 + lister.endPacking(pack,bean,acc);
1.88 + reset();
1.89 + }
1.90 + assert clean();
1.91 + }
1.92 +
1.93 + private boolean clean() {
1.94 + return bean==null && acc==null && pack==null && lister==null;
1.95 + }
1.96 +
1.97 + /**
1.98 + * Adds a new item to this packing scope.
1.99 + */
1.100 + public void add( Accessor<BeanT,PropT> acc, Lister<BeanT,PropT,ItemT,PackT> lister, ItemT value) throws SAXException{
1.101 + try {
1.102 + if(!hasStarted()) {
1.103 + this.bean = (BeanT)context.getCurrentState().target;
1.104 + this.acc = acc;
1.105 + this.lister = lister;
1.106 + this.pack = lister.startPacking(bean,acc);
1.107 + }
1.108 +
1.109 + lister.addToPack(pack,value);
1.110 + } catch (AccessorException e) {
1.111 + Loader.handleGenericException(e,true);
1.112 + // recover from this error by ignoring future items.
1.113 + this.lister = Lister.getErrorInstance();
1.114 + this.acc = Accessor.getErrorInstance();
1.115 + }
1.116 + }
1.117 +
1.118 + /**
1.119 + * Starts the packing scope, without adding any item.
1.120 + *
1.121 + * This allows us to return an empty pack, thereby allowing the user
1.122 + * to distinguish empty array vs null array.
1.123 + */
1.124 + public void start( Accessor<BeanT,PropT> acc, Lister<BeanT,PropT,ItemT,PackT> lister) throws SAXException{
1.125 + try {
1.126 + if(!hasStarted()) {
1.127 + this.bean = (BeanT)context.getCurrentState().target;
1.128 + this.acc = acc;
1.129 + this.lister = lister;
1.130 + this.pack = lister.startPacking(bean,acc);
1.131 + }
1.132 + } catch (AccessorException e) {
1.133 + Loader.handleGenericException(e,true);
1.134 + // recover from this error by ignoring future items.
1.135 + this.lister = Lister.getErrorInstance();
1.136 + this.acc = Accessor.getErrorInstance();
1.137 + }
1.138 + }
1.139 +}
