| /* 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.*; |
| import org.apache.xmlbeans.impl.common.GenericXmlInputStream; |
| import org.apache.xmlbeans.impl.common.ValidatorListener; |
| import org.apache.xmlbeans.impl.common.ValidatorListener.Event; |
| import org.apache.xmlbeans.impl.common.XMLNameHelper; |
| import org.apache.xmlbeans.impl.common.XmlWhitespace; |
| import org.apache.xmlbeans.impl.schema.BuiltinSchemaTypeSystem; |
| import org.apache.xmlbeans.xml.stream.CharacterData; |
| import org.apache.xmlbeans.xml.stream.*; |
| |
| import javax.xml.namespace.QName; |
| import java.util.AbstractCollection; |
| import java.util.Collections; |
| import java.util.Iterator; |
| import java.util.Map; |
| |
| /** |
| * @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 = options.getDocumentType(); |
| |
| 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; |
| } |