/**
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package org.apache.cxf.aegis;
import java.util.logging.Logger;
import javax.xml.namespace.QName;
import javax.xml.stream.XMLStreamConstants;
import javax.xml.stream.XMLStreamReader;
import org.apache.cxf.aegis.type.AegisType;
import org.apache.cxf.aegis.type.TypeUtil;
import org.apache.cxf.aegis.type.basic.ArrayType;
import org.apache.cxf.aegis.xml.stax.ElementReader;
import org.apache.cxf.common.i18n.Message;
import org.apache.cxf.common.logging.LogUtils;
public class AegisXMLStreamDataReader extends AbstractAegisIoImpl implements AegisReader<XMLStreamReader> {
private static final Logger LOG = LogUtils.getL7dLogger(AegisXMLStreamDataReader.class);
public AegisXMLStreamDataReader(AegisContext globalContext) {
super(globalContext);
}
/**
* This constructor is used by the Element data reader to borrow this class.
* @param globalContext
* @param context
*/
public AegisXMLStreamDataReader(AegisContext globalContext, Context context) {
super(globalContext, context);
}
private void setupReaderPosition(XMLStreamReader reader) throws Exception {
if (reader.getEventType() == XMLStreamConstants.START_DOCUMENT) {
while (XMLStreamConstants.START_ELEMENT != reader.getEventType()) {
reader.nextTag();
}
}
if (reader.getEventType() != XMLStreamConstants.START_ELEMENT) {
Message message = new Message("STREAM_BAD_POSITION", LOG);
throw new DatabindingException(message.toString());
}
}
/** {@inheritDoc}*/
public Object read(XMLStreamReader reader) throws Exception {
return read(reader, null);
}
/** {@inheritDoc}*/
public Object read(XMLStreamReader reader, AegisType desiredType) throws Exception {
setupReaderPosition(reader);
ElementReader elReader = new ElementReader(reader);
if (elReader.isXsiNil()) {
elReader.readToEnd();
return null;
}
AegisType type = TypeUtil.getReadTypeStandalone(reader, aegisContext, desiredType);
if (type == null) {
throw new DatabindingException(new Message("NO_MAPPING", LOG));
}
return type.readObject(elReader, context);
}
public Object readFlatArray(XMLStreamReader input,
ArrayType arrayType, QName concreteName) throws Exception {
setupReaderPosition(input);
ElementReader elReader = new ElementReader(input);
return arrayType.readObject(elReader, concreteName, context, true);
}
}