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authorupstream source tree <ports@midipix.org>2015-03-15 20:14:05 -0400
committerupstream source tree <ports@midipix.org>2015-03-15 20:14:05 -0400
commit554fd8c5195424bdbcabf5de30fdc183aba391bd (patch)
tree976dc5ab7fddf506dadce60ae936f43f58787092 /libjava/classpath/gnu/xml/stream/XMLEventReaderImpl.java
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+/* 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();
+ }
+
+}