| /* Copyright 2004 The Apache Software Foundation |
| * |
| * Licensed 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.xmlbeans.impl.validator; |
| |
| import org.apache.xmlbeans.impl.common.XMLNameHelper; |
| import org.apache.xmlbeans.impl.common.GenericXmlInputStream; |
| import org.apache.xmlbeans.impl.common.ValidatorListener.Event; |
| import org.apache.xmlbeans.impl.common.ValidatorListener; |
| import org.apache.xmlbeans.impl.common.XmlWhitespace; |
| import org.apache.xmlbeans.impl.schema.BuiltinSchemaTypeSystem; |
| import org.apache.xmlbeans.SchemaType; |
| import org.apache.xmlbeans.SchemaTypeLoader; |
| import org.apache.xmlbeans.XmlCursor; |
| import org.apache.xmlbeans.XmlError; |
| import org.apache.xmlbeans.XmlOptions; |
| import org.apache.xmlbeans.XMLStreamValidationException; |
| import java.util.Map; |
| import java.util.AbstractCollection; |
| import java.util.Iterator; |
| import java.util.Collections; |
| |
| import org.apache.xmlbeans.xml.stream.Attribute; |
| import org.apache.xmlbeans.xml.stream.AttributeIterator; |
| import org.apache.xmlbeans.xml.stream.CharacterData; |
| import org.apache.xmlbeans.xml.stream.StartElement; |
| import org.apache.xmlbeans.xml.stream.XMLEvent; |
| import org.apache.xmlbeans.xml.stream.XMLInputStream; |
| import org.apache.xmlbeans.xml.stream.XMLName; |
| import org.apache.xmlbeans.xml.stream.XMLStreamException; |
| import javax.xml.namespace.QName; |
| |
| /** |
| * @deprecated XMLInputStream was deprecated by XMLStreamReader from STaX - jsr173 API. |
| */ |
| public final class ValidatingXMLInputStream |
| extends GenericXmlInputStream implements Event |
| { |
| public ValidatingXMLInputStream ( |
| XMLInputStream xis, |
| SchemaTypeLoader typeLoader, SchemaType sType, XmlOptions options ) |
| throws XMLStreamException |
| { |
| _source = xis; |
| |
| // Figure out the root type |
| |
| options = XmlOptions.maskNull( options ); |
| |
| SchemaType type = (SchemaType) options.get( XmlOptions.DOCUMENT_TYPE ); |
| |
| if (type == null) |
| type = sType; |
| |
| if (type == null) |
| { |
| type = BuiltinSchemaTypeSystem.ST_ANY_TYPE; |
| |
| xis = xis.getSubStream(); |
| |
| if (xis.skip( XMLEvent.START_ELEMENT )) |
| { |
| SchemaType docType = |
| typeLoader.findDocumentType( |
| XMLNameHelper.getQName( xis.next().getName() ) ); |
| |
| if (docType != null) |
| type = docType; |
| } |
| |
| xis.close(); |
| } |
| |
| // Create the validator |
| |
| _validator = |
| new Validator( |
| type, null, typeLoader, options, new ExceptionXmlErrorListener() ); |
| |
| nextEvent( ValidatorListener.BEGIN ); |
| } |
| |
| // TODO - this is the quick and dirty impl of streaming validation, |
| // may objects are created (like strings) which can be optimized |
| |
| protected XMLEvent nextEvent ( ) throws XMLStreamException |
| { |
| XMLEvent e = _source.next(); |
| |
| if (e == null) |
| { |
| if (!_finished) |
| { |
| flushText(); |
| nextEvent( ValidatorListener.END ); |
| _finished = true; |
| } |
| } |
| else |
| { |
| switch ( e.getType() ) |
| { |
| case XMLEvent.CHARACTER_DATA : |
| case XMLEvent.SPACE : |
| { |
| CharacterData cd = (CharacterData) e; |
| |
| if (cd.hasContent()) |
| _text.append( cd.getContent() ); |
| |
| break; |
| } |
| case XMLEvent.START_ELEMENT : |
| { |
| StartElement se = (StartElement) e; |
| |
| flushText(); |
| |
| // Used for prefix to namespace mapping |
| _startElement = se; |
| |
| // Prepare the xsi:* values |
| |
| AttributeIterator attrs = se.getAttributes(); |
| |
| while ( attrs.hasNext() ) |
| { |
| Attribute attr = attrs.next(); |
| |
| XMLName attrName = attr.getName(); |
| |
| if ("http://www.w3.org/2001/XMLSchema-instance".equals( |
| attrName.getNamespaceUri() )) |
| { |
| String local = attrName.getLocalName(); |
| |
| if (local.equals( "type" )) |
| _xsiType = attr.getValue(); |
| else if (local.equals( "nil" )) |
| _xsiNil = attr.getValue(); |
| else if (local.equals( "schemaLocation" )) |
| _xsiLoc = attr.getValue(); |
| else if (local.equals( "noNamespaceSchemaLocation" )) |
| _xsiNoLoc = attr.getValue(); |
| } |
| } |
| |
| // Emit the START |
| |
| // TODO - should delay the aquisition of the name |
| _name = e.getName(); |
| |
| nextEvent( ValidatorListener.BEGIN ); |
| |
| // Emit the attrs |
| |
| attrs = se.getAttributes(); |
| |
| while ( attrs.hasNext() ) |
| { |
| Attribute attr = attrs.next(); |
| |
| XMLName attrName = attr.getName(); |
| |
| if ("http://www.w3.org/2001/XMLSchema-instance".equals( |
| attrName.getNamespaceUri() )) |
| { |
| String local = attrName.getLocalName(); |
| |
| if (local.equals( "type" )) |
| continue; |
| else if (local.equals( "nil" )) |
| continue; |
| else if (local.equals( "schemaLocation" )) |
| continue; |
| else if (local.equals( "noNamespaceSchemaLocation" )) |
| continue; |
| } |
| |
| // TODO - God, this is lame :-) |
| |
| _text.append( attr.getValue() ); |
| _name = attr.getName(); |
| |
| nextEvent( ValidatorListener.ATTR ); |
| } |
| |
| clearText(); |
| |
| _startElement = null; |
| |
| break; |
| } |
| |
| case XMLEvent.END_ELEMENT : |
| { |
| flushText(); |
| |
| nextEvent( ValidatorListener.END ); |
| |
| break; |
| } |
| } |
| } |
| |
| return e; |
| } |
| |
| private void clearText ( ) |
| { |
| _text.delete( 0, _text.length() ); |
| } |
| |
| private void flushText ( ) throws XMLStreamException |
| { |
| if (_text.length() > 0) |
| { |
| nextEvent( ValidatorListener.TEXT ); |
| clearText(); |
| } |
| } |
| |
| public String getNamespaceForPrefix ( String prefix ) |
| { |
| if (_startElement == null) |
| return null; |
| |
| Map map = _startElement.getNamespaceMap(); |
| |
| if (map == null) |
| return null; |
| |
| return (String) map.get( prefix ); |
| } |
| |
| public XmlCursor getLocationAsCursor ( ) |
| { |
| return null; |
| } |
| |
| public javax.xml.stream.Location getLocation() |
| { |
| try |
| { |
| final org.apache.xmlbeans.xml.stream.Location xeLoc = _source.peek().getLocation(); |
| |
| if (xeLoc==null) |
| return null; |
| |
| javax.xml.stream.Location loc = new javax.xml.stream.Location() |
| { |
| public int getLineNumber() |
| { return xeLoc.getLineNumber(); } |
| |
| public int getColumnNumber() |
| { return xeLoc.getColumnNumber(); } |
| |
| public int getCharacterOffset() |
| { return -1;} |
| |
| public String getPublicId() |
| { return xeLoc.getPublicId(); } |
| |
| public String getSystemId() |
| { return xeLoc.getSystemId(); } |
| }; |
| |
| return loc; |
| } |
| catch (XMLStreamException e) |
| { |
| return null; |
| } |
| } |
| |
| public String getXsiType ( ) |
| { |
| return _xsiType; |
| } |
| |
| public String getXsiNil ( ) |
| { |
| return _xsiNil; |
| } |
| |
| public String getXsiLoc ( ) |
| { |
| return _xsiLoc; |
| } |
| |
| public String getXsiNoLoc ( ) |
| { |
| return _xsiNoLoc; |
| } |
| |
| public QName getName ( ) |
| { |
| return XMLNameHelper.getQName( _name ); |
| } |
| |
| public String getText ( ) |
| { |
| return _text.toString(); |
| } |
| |
| public String getText ( int wsr ) |
| { |
| return XmlWhitespace.collapse( _text.toString(), wsr ); |
| } |
| |
| public boolean textIsWhitespace ( ) |
| { |
| for ( int i = 0 ; i < _text.length() ; i++ ) |
| { |
| switch ( _text.charAt( i ) ) |
| { |
| case ' ': |
| case '\n': |
| case '\r': |
| case '\t': |
| break; |
| |
| default : |
| return false; |
| } |
| } |
| |
| return true; |
| } |
| |
| private final class ExceptionXmlErrorListener extends AbstractCollection |
| { |
| public boolean add(Object o) |
| { |
| assert ValidatingXMLInputStream.this._exception == null; |
| |
| ValidatingXMLInputStream.this._exception = |
| new XMLStreamValidationException( (XmlError)o ); |
| |
| return false; |
| } |
| |
| public Iterator iterator() |
| { |
| return Collections.EMPTY_LIST.iterator(); |
| } |
| |
| public int size() |
| { |
| return 0; |
| } |
| } |
| |
| private void nextEvent ( int kind ) |
| throws XMLStreamException |
| { |
| assert _exception == null; |
| |
| _validator.nextEvent( kind, this ); |
| |
| if (_exception != null) |
| throw _exception; |
| } |
| |
| private XMLStreamValidationException _exception; |
| |
| private XMLInputStream _source; |
| private Validator _validator; |
| private StringBuilder _text = new StringBuilder(); |
| private boolean _finished; |
| private String _xsiType; |
| private String _xsiNil; |
| private String _xsiLoc; |
| private String _xsiNoLoc; |
| private XMLName _name; |
| private StartElement _startElement; |
| } |