| /* |
| * 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.axis2.databinding.utils.reader; |
| |
| import javax.xml.namespace.NamespaceContext; |
| import javax.xml.namespace.QName; |
| import javax.xml.stream.Location; |
| import javax.xml.stream.XMLStreamException; |
| |
| public class NullXMLStreamReader implements ADBXMLStreamReader { |
| |
| private QName outerQName = null; |
| |
| |
| private static final int START_ELEMENT_STATE = 1; |
| private static final int END_ELEMENT_STATE = 2; |
| |
| |
| private static final QName NIL_QNAME = |
| new QName("http://www.w3.org/2001/XMLSchema-instance", "nil", "xsi"); |
| private static final String NIL_VALUE_TRUE = "true"; |
| |
| private int currentState = START_ELEMENT; |
| |
| public NullXMLStreamReader(QName outerQName) { |
| this.outerQName = outerQName; |
| } |
| |
| public Object getProperty(String key) throws IllegalArgumentException { |
| //since optimization is a global property |
| //we've to implement it everywhere |
| if (OPTIMIZATION_ENABLED.equals(key)) { |
| return Boolean.TRUE; |
| } else { |
| return null; |
| } |
| } |
| |
| public int next() throws XMLStreamException { |
| int returnEvent = START_DOCUMENT; |
| switch (currentState) { |
| case START_ELEMENT_STATE: |
| currentState = END_ELEMENT_STATE; |
| returnEvent = END_ELEMENT; |
| break; |
| case END_ELEMENT_STATE: |
| throw new XMLStreamException("parser completed!"); |
| |
| } |
| |
| return returnEvent; |
| } |
| |
| public void require(int i, String string, String string1) throws XMLStreamException { |
| //nothing |
| } |
| |
| public String getElementText() throws XMLStreamException { |
| return null; |
| } |
| |
| public int nextTag() throws XMLStreamException { |
| throw new UnsupportedOperationException(); |
| } |
| |
| public boolean hasNext() throws XMLStreamException { |
| return (currentState != END_ELEMENT_STATE); |
| |
| } |
| |
| public void close() throws XMLStreamException { |
| //do nothing |
| } |
| |
| public String getNamespaceURI(String string) { |
| if (outerQName.getPrefix() != null && |
| outerQName.getPrefix().equals(string)) { |
| return outerQName.getNamespaceURI(); |
| } else { |
| return null; |
| } |
| } |
| |
| public boolean isStartElement() { |
| return (currentState == START_ELEMENT_STATE); |
| } |
| |
| public boolean isEndElement() { |
| return (currentState == END_ELEMENT_STATE); |
| } |
| |
| public boolean isCharacters() { |
| return false; |
| } |
| |
| public boolean isWhiteSpace() { |
| return false; |
| } |
| |
| public String getAttributeValue(String string, String string1) { |
| if (string == null) {//null namespace - ignore it |
| if (NIL_QNAME.getLocalPart().equals(string1)) { |
| return NIL_VALUE_TRUE; |
| } |
| } |
| return null; |
| } |
| |
| public int getAttributeCount() { |
| return 1; |
| } |
| |
| public QName getAttributeName(int i) { |
| return (i == 0) ? NIL_QNAME : null; |
| } |
| |
| public String getAttributeNamespace(int i) { |
| return (i == 0) ? NIL_QNAME.getNamespaceURI() : null; |
| } |
| |
| public String getAttributeLocalName(int i) { |
| return (i == 0) ? NIL_QNAME.getLocalPart() : null; |
| } |
| |
| public String getAttributePrefix(int i) { |
| return (i == 0) ? NIL_QNAME.getPrefix() : null; |
| } |
| |
| public String getAttributeType(int i) { |
| return null; |
| } |
| |
| public String getAttributeValue(int i) { |
| return (i == 0) ? NIL_VALUE_TRUE : null; |
| } |
| |
| public boolean isAttributeSpecified(int i) { |
| return (i == 0); |
| } |
| |
| public int getNamespaceCount() { |
| return 0; |
| } |
| |
| public String getNamespacePrefix(int i) { |
| return null; |
| } |
| |
| public String getNamespaceURI(int i) { |
| return null; |
| } |
| |
| public NamespaceContext getNamespaceContext() { |
| throw new UnsupportedOperationException(); |
| } |
| |
| public int getEventType() { |
| int returnEvent = START_DOCUMENT; |
| switch (currentState) { |
| case START_ELEMENT_STATE: |
| returnEvent = START_ELEMENT; |
| break; |
| case END_ELEMENT_STATE: |
| returnEvent = END_ELEMENT; |
| break; |
| |
| } |
| return returnEvent; |
| } |
| |
| public String getText() { |
| return null; |
| } |
| |
| public char[] getTextCharacters() { |
| return new char[0]; //To change body of implemented methods use File | Settings | File Templates. |
| } |
| |
| public int getTextCharacters(int i, char[] chars, int i1, int i2) throws XMLStreamException { |
| return 0; |
| } |
| |
| public int getTextStart() { |
| return 0; |
| } |
| |
| public int getTextLength() { |
| return 0; |
| } |
| |
| public String getEncoding() { |
| return null; |
| } |
| |
| public boolean hasText() { |
| return false; |
| } |
| |
| public Location getLocation() { |
| return new Location() { |
| public int getLineNumber() { |
| return 0; |
| } |
| |
| public int getColumnNumber() { |
| return 0; |
| } |
| |
| public int getCharacterOffset() { |
| return 0; |
| } |
| |
| public String getPublicId() { |
| return null; |
| } |
| |
| public String getSystemId() { |
| return null; |
| } |
| }; |
| } |
| |
| public QName getName() { |
| return outerQName; |
| } |
| |
| public String getLocalName() { |
| return outerQName.getLocalPart(); |
| } |
| |
| public boolean hasName() { |
| return true; |
| } |
| |
| public String getNamespaceURI() { |
| return outerQName.getNamespaceURI(); |
| } |
| |
| public String getPrefix() { |
| return outerQName.getPrefix(); |
| } |
| |
| public String getVersion() { |
| throw new UnsupportedOperationException(); |
| } |
| |
| public boolean isStandalone() { |
| throw new UnsupportedOperationException(); |
| } |
| |
| public boolean standaloneSet() { |
| throw new UnsupportedOperationException(); |
| } |
| |
| public String getCharacterEncodingScheme() { |
| throw new UnsupportedOperationException(); |
| } |
| |
| public String getPITarget() { |
| throw new UnsupportedOperationException(); |
| } |
| |
| public String getPIData() { |
| throw new UnsupportedOperationException(); |
| } |
| |
| public boolean isDone() { |
| return (currentState == END_ELEMENT_STATE); |
| } |
| |
| public void addNamespaceContext(NamespaceContext nsContext) { |
| //To change body of implemented methods use File | Settings | File Templates. |
| } |
| |
| public void init() { |
| //To change body of implemented methods use File | Settings | File Templates. |
| } |
| } |