aoqi@0: /*
aoqi@0:  * Copyright (c) 1997, 2011, Oracle and/or its affiliates. All rights reserved.
aoqi@0:  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
aoqi@0:  *
aoqi@0:  * This code is free software; you can redistribute it and/or modify it
aoqi@0:  * under the terms of the GNU General Public License version 2 only, as
aoqi@0:  * published by the Free Software Foundation.  Oracle designates this
aoqi@0:  * particular file as subject to the "Classpath" exception as provided
aoqi@0:  * by Oracle in the LICENSE file that accompanied this code.
aoqi@0:  *
aoqi@0:  * This code is distributed in the hope that it will be useful, but WITHOUT
aoqi@0:  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
aoqi@0:  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
aoqi@0:  * version 2 for more details (a copy is included in the LICENSE file that
aoqi@0:  * accompanied this code).
aoqi@0:  *
aoqi@0:  * You should have received a copy of the GNU General Public License version
aoqi@0:  * 2 along with this work; if not, write to the Free Software Foundation,
aoqi@0:  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
aoqi@0:  *
aoqi@0:  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
aoqi@0:  * or visit www.oracle.com if you need additional information or have any
aoqi@0:  * questions.
aoqi@0:  */
aoqi@0: 
aoqi@0: package com.sun.xml.internal.bind.v2.runtime.reflect;
aoqi@0: 
aoqi@0: import javax.xml.bind.JAXBException;
aoqi@0: 
aoqi@0: import com.sun.xml.internal.bind.WhiteSpaceProcessor;
aoqi@0: import com.sun.xml.internal.bind.api.AccessorException;
aoqi@0: import com.sun.xml.internal.bind.v2.runtime.Transducer;
aoqi@0: import com.sun.xml.internal.bind.v2.runtime.XMLSerializer;
aoqi@0: 
aoqi@0: import org.xml.sax.SAXException;
aoqi@0: 
aoqi@0: /**
aoqi@0:  * {@link TransducedAccessor} for a list simple type.
aoqi@0:  *
aoqi@0:  * @author Kohsuke Kawaguchi
aoqi@0:  */
aoqi@0: public final class ListTransducedAccessorImpl<BeanT,ListT,ItemT,PackT> extends DefaultTransducedAccessor<BeanT> {
aoqi@0:     /**
aoqi@0:      * {@link Transducer} for each item type.
aoqi@0:      */
aoqi@0:     private final Transducer<ItemT> xducer;
aoqi@0:     /**
aoqi@0:      * {@link Lister} for handling list of tokens.
aoqi@0:      */
aoqi@0:     private final Lister<BeanT,ListT,ItemT,PackT> lister;
aoqi@0:     /**
aoqi@0:      * {@link Accessor} to get/set the list.
aoqi@0:      */
aoqi@0:     private final Accessor<BeanT,ListT> acc;
aoqi@0: 
aoqi@0:     public ListTransducedAccessorImpl(Transducer<ItemT> xducer, Accessor<BeanT,ListT> acc, Lister<BeanT,ListT,ItemT,PackT> lister) {
aoqi@0:         this.xducer = xducer;
aoqi@0:         this.lister = lister;
aoqi@0:         this.acc = acc;
aoqi@0:     }
aoqi@0: 
aoqi@0:     public boolean useNamespace() {
aoqi@0:         return xducer.useNamespace();
aoqi@0:     }
aoqi@0: 
aoqi@0:     public void declareNamespace(BeanT bean, XMLSerializer w) throws AccessorException, SAXException {
aoqi@0:         ListT list = acc.get(bean);
aoqi@0: 
aoqi@0:         if(list!=null) {
aoqi@0:            ListIterator<ItemT> itr = lister.iterator(list, w);
aoqi@0: 
aoqi@0:             while(itr.hasNext()) {
aoqi@0:                 try {
aoqi@0:                     ItemT item = itr.next();
aoqi@0:                     if (item != null) {
aoqi@0:                         xducer.declareNamespace(item,w);
aoqi@0:                     }
aoqi@0:                 } catch (JAXBException e) {
aoqi@0:                     w.reportError(null,e);
aoqi@0:                 }
aoqi@0:             }
aoqi@0:         }
aoqi@0:     }
aoqi@0: 
aoqi@0:     // TODO: this is inefficient, consider a redesign
aoqi@0:     // perhaps we should directly write to XMLSerializer,
aoqi@0:     // or maybe add more methods like writeLeafElement.
aoqi@0:     public String print(BeanT o) throws AccessorException, SAXException {
aoqi@0:         ListT list = acc.get(o);
aoqi@0: 
aoqi@0:         if(list==null)
aoqi@0:             return null;
aoqi@0: 
aoqi@0:         StringBuilder buf = new StringBuilder();
aoqi@0:         XMLSerializer w = XMLSerializer.getInstance();
aoqi@0:         ListIterator<ItemT> itr = lister.iterator(list, w);
aoqi@0: 
aoqi@0:         while(itr.hasNext()) {
aoqi@0:             try {
aoqi@0:                 ItemT item = itr.next();
aoqi@0:                 if (item != null) {
aoqi@0:                     if(buf.length()>0)  buf.append(' ');
aoqi@0:                     buf.append(xducer.print(item));
aoqi@0:                 }
aoqi@0:             } catch (JAXBException e) {
aoqi@0:                 w.reportError(null,e);
aoqi@0:             }
aoqi@0:         }
aoqi@0:         return buf.toString();
aoqi@0:     }
aoqi@0: 
aoqi@0:     private void processValue(BeanT bean, CharSequence s) throws AccessorException, SAXException {
aoqi@0:         PackT pack = lister.startPacking(bean,acc);
aoqi@0: 
aoqi@0:         int idx = 0;
aoqi@0:         int len = s.length();
aoqi@0: 
aoqi@0:         while(true) {
aoqi@0:             int p = idx;
aoqi@0:             while( p<len && !WhiteSpaceProcessor.isWhiteSpace(s.charAt(p)) )
aoqi@0:                 p++;
aoqi@0: 
aoqi@0:             CharSequence token = s.subSequence(idx,p);
aoqi@0:             if (!token.equals(""))
aoqi@0:                 lister.addToPack(pack,xducer.parse(token));
aoqi@0: 
aoqi@0:             if(p==len)      break;  // done
aoqi@0: 
aoqi@0:             while( p<len && WhiteSpaceProcessor.isWhiteSpace(s.charAt(p)) )
aoqi@0:                 p++;
aoqi@0:             if(p==len)      break;  // done
aoqi@0: 
aoqi@0:             idx = p;
aoqi@0:         }
aoqi@0: 
aoqi@0:         lister.endPacking(pack,bean,acc);
aoqi@0:     }
aoqi@0: 
aoqi@0:     public void parse(BeanT bean, CharSequence lexical) throws AccessorException, SAXException {
aoqi@0:         processValue(bean,lexical);
aoqi@0:     }
aoqi@0: 
aoqi@0:     public boolean hasValue(BeanT bean) throws AccessorException {
aoqi@0:         return acc.get(bean)!=null;
aoqi@0:     }
aoqi@0: }