| /* XMLEventReaderImpl.java -- |
| Copyright (C) 2005 Free Software Foundation, Inc. |
| |
| This file is part of GNU Classpath. |
| |
| GNU Classpath is free software; you can redistribute it and/or modify |
| it under the terms of the GNU General Public License as published by |
| the Free Software Foundation; either version 2, or (at your option) |
| any later version. |
| |
| GNU Classpath 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 for more details. |
| |
| You should have received a copy of the GNU General Public License |
| along with GNU Classpath; see the file COPYING. If not, write to the |
| Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA |
| 02110-1301 USA. |
| |
| Linking this library statically or dynamically with other modules is |
| making a combined work based on this library. Thus, the terms and |
| conditions of the GNU General Public License cover the whole |
| combination. |
| |
| As a special exception, the copyright holders of this library give you |
| permission to link this library with independent modules to produce an |
| executable, regardless of the license terms of these independent |
| modules, and to copy and distribute the resulting executable under |
| terms of your choice, provided that you also meet, for each linked |
| independent module, the terms and conditions of the license of that |
| module. An independent module is a module which is not derived from |
| or based on this library. If you modify this library, you may extend |
| this exception to your version of the library, but you are not |
| obligated to do so. If you do not wish to do so, delete this |
| exception statement from your version. */ |
| |
| package gnu.xml.stream; |
| |
| import javax.xml.stream.XMLEventReader; |
| import javax.xml.stream.XMLStreamConstants; |
| import javax.xml.stream.XMLStreamException; |
| import javax.xml.stream.XMLStreamReader; |
| import javax.xml.stream.events.XMLEvent; |
| import javax.xml.stream.util.XMLEventAllocator; |
| |
| /** |
| * Parser using XML events. |
| * |
| * @author <a href='mailto:dog@gnu.org'>Chris Burdess</a> |
| */ |
| public class XMLEventReaderImpl |
| implements XMLEventReader |
| { |
| |
| protected final XMLStreamReader reader; |
| protected final XMLEventAllocator allocator; |
| protected final String systemId; |
| protected XMLEvent peekEvent; |
| |
| protected XMLEventReaderImpl(XMLStreamReader reader, |
| XMLEventAllocator allocator, |
| String systemId) |
| { |
| this.reader = reader; |
| this.allocator = allocator; |
| this.systemId = systemId; |
| } |
| |
| public XMLEvent nextEvent() |
| throws XMLStreamException |
| { |
| XMLEvent ret = peek(); |
| peekEvent = null; |
| return ret; |
| } |
| |
| public Object next() |
| { |
| try |
| { |
| return nextEvent(); |
| } |
| catch (XMLStreamException e) |
| { |
| RuntimeException e2 = new RuntimeException(); |
| e2.initCause(e); |
| throw e2; |
| } |
| } |
| |
| public boolean hasNext() |
| { |
| if (peekEvent != null) |
| return true; |
| try |
| { |
| return reader.hasNext(); |
| } |
| catch (XMLStreamException e) |
| { |
| return false; |
| } |
| } |
| |
| public XMLEvent peek() |
| throws XMLStreamException |
| { |
| if (peekEvent != null) |
| return peekEvent; |
| if (!reader.hasNext()) |
| return null; |
| reader.next(); |
| peekEvent = allocator.allocate(reader); |
| return peekEvent; |
| } |
| |
| public String getElementText() |
| throws XMLStreamException |
| { |
| return reader.getElementText(); |
| } |
| |
| public XMLEvent nextTag() |
| throws XMLStreamException |
| { |
| if (peekEvent != null) |
| { |
| int eventType = peekEvent.getEventType(); |
| if (eventType == XMLStreamConstants.START_ELEMENT || |
| eventType == XMLStreamConstants.END_ELEMENT) |
| return peekEvent; |
| else |
| peekEvent = null; |
| } |
| reader.nextTag(); |
| return allocator.allocate(reader); |
| } |
| |
| public Object getProperty(String name) |
| throws IllegalArgumentException |
| { |
| return reader.getProperty(name); |
| } |
| |
| public void close() |
| throws XMLStreamException |
| { |
| reader.close(); |
| } |
| |
| public void remove() |
| { |
| throw new UnsupportedOperationException(); |
| } |
| |
| } |
| |