| /******************************************************************************* |
| * Copyright (c) 2005, 2006 IBM Corporation and others. |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License v1.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/epl-v10.html |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.equinox.metatype; |
| |
| import java.io.*; |
| import java.lang.reflect.Constructor; |
| import java.lang.reflect.InvocationTargetException; |
| import java.net.URL; |
| import java.util.*; |
| import javax.xml.parsers.*; |
| import org.eclipse.osgi.util.NLS; |
| import org.osgi.framework.Bundle; |
| import org.osgi.service.metatype.AttributeDefinition; |
| import org.xml.sax.*; |
| import org.xml.sax.helpers.DefaultHandler; |
| |
| /** |
| * Meta XML Data Parser |
| */ |
| public class DataParser { |
| private static final String METADATA = "MetaData"; //$NON-NLS-1$ |
| private static final String LOCALIZATION = "localization"; //$NON-NLS-1$ |
| private static final String OCD = "OCD"; //$NON-NLS-1$ |
| private static final String ICON = "Icon"; //$NON-NLS-1$ |
| private static final String AD = "AD"; //$NON-NLS-1$ |
| private static final String CARDINALITY = "cardinality"; //$NON-NLS-1$ |
| private static final String OPTION = "Option"; //$NON-NLS-1$ |
| private static final String LABEL = "label"; //$NON-NLS-1$ |
| private static final String VALUE = "value"; //$NON-NLS-1$ |
| private static final String MIN = "min"; //$NON-NLS-1$ |
| private static final String MAX = "max"; //$NON-NLS-1$ |
| private static final String TYPE = "type"; //$NON-NLS-1$ |
| private static final String SIZE = "size"; //$NON-NLS-1$ |
| private static final String ID = "id"; //$NON-NLS-1$ |
| private static final String NAME = "name"; //$NON-NLS-1$ |
| private static final String DESCRIPTION = "description"; //$NON-NLS-1$ |
| private static final String RESOURCE = "resource"; //$NON-NLS-1$ |
| private static final String PID = "pid"; //$NON-NLS-1$ |
| private static final String DEFAULT = "default"; //$NON-NLS-1$ |
| private static final String ADREF = "adref"; //$NON-NLS-1$ |
| private static final String CONTENT = "content"; //$NON-NLS-1$ |
| private static final String FACTORY = "factoryPid"; //$NON-NLS-1$ |
| private static final String BUNDLE = "bundle"; //$NON-NLS-1$ |
| private static final String OPTIONAL = "optional"; //$NON-NLS-1$ |
| private static final String OBJECT = "Object"; //$NON-NLS-1$ |
| private static final String OCDREF = "ocdref"; //$NON-NLS-1$ |
| private static final String ATTRIBUTE = "Attribute"; //$NON-NLS-1$ |
| private static final String DESIGNATE = "Designate"; //$NON-NLS-1$ |
| private static final String MERGE = "merge"; //$NON-NLS-1$ |
| private static final String REQUIRED = "required"; //$NON-NLS-1$ |
| |
| private static final String INTEGER = "Integer"; //$NON-NLS-1$ |
| private static final String STRING = "String"; //$NON-NLS-1$ |
| private static final String FLOAT = "Float"; //$NON-NLS-1$ |
| private static final String DOUBLE = "Double"; //$NON-NLS-1$ |
| private static final String BYTE = "Byte"; //$NON-NLS-1$ |
| private static final String LONG = "Long"; //$NON-NLS-1$ |
| private static final String CHAR = "Char"; //$NON-NLS-1$ |
| private static final String BOOLEAN = "Boolean"; //$NON-NLS-1$ |
| private static final String SHORT = "Short"; //$NON-NLS-1$ |
| |
| protected Bundle _dp_bundle; |
| protected URL _dp_url; |
| protected SAXParserFactory _dp_parserFactory; |
| protected XMLReader _dp_xmlReader; |
| |
| // DesignateHanders in DataParser class |
| Vector _dp_designateHandlers = new Vector(7); |
| // ObjectClassDefinitions in DataParser class w/ corresponding reference keys |
| Hashtable _dp_OCDs = new Hashtable(7); |
| // pid to ObjectClassDefinitions in DataParser class as a Hashtable |
| Hashtable _dp_pid_to_OCDs_ = new Hashtable(7); |
| // Localization in DataParser class |
| String _dp_localization; |
| |
| /* |
| * Constructor of class DataParser. |
| */ |
| public DataParser(Bundle bundle, URL url, SAXParserFactory parserFactory) { |
| |
| this._dp_bundle = bundle; |
| this._dp_url = url; |
| this._dp_parserFactory = parserFactory; |
| parserFactory.setValidating(false); |
| } |
| |
| /* |
| * Main method to parse specific MetaData file. |
| */ |
| public Hashtable doParse() { |
| |
| try { |
| SAXParser saxParser = _dp_parserFactory.newSAXParser(); |
| _dp_xmlReader = saxParser.getXMLReader(); |
| _dp_xmlReader.setContentHandler(new RootHandler()); |
| _dp_xmlReader.setErrorHandler(new MyErrorHandler(System.err)); |
| InputStream is = _dp_url.openStream(); |
| InputSource isource = new InputSource(is); |
| Logging.log(Logging.DEBUG, "Starting to parse " + _dp_url); //$NON-NLS-1$ |
| _dp_xmlReader.parse(isource); |
| } catch (ParserConfigurationException pce) { |
| pce.printStackTrace(); |
| return null; |
| } catch (SAXException saxe) { |
| saxe.printStackTrace(); |
| return null; |
| } catch (IOException ioe) { |
| ioe.printStackTrace(); |
| return null; |
| } |
| return _dp_pid_to_OCDs_; |
| } |
| |
| /* |
| * Convert String for expected data type. |
| */ |
| static Object convert(String value, int type) { |
| |
| if (value == null) { |
| return null; |
| } |
| |
| switch (type) { |
| case AttributeDefinition.STRING : |
| // Both the min and max of STRING are Integers. |
| return new Integer(value); |
| case AttributeDefinition.LONG : |
| return new Long(value); |
| case AttributeDefinition.INTEGER : |
| return new Integer(value); |
| case AttributeDefinition.SHORT : |
| return new Short(value); |
| case AttributeDefinition.CHARACTER : |
| return new Character(value.charAt(0)); |
| case AttributeDefinition.BYTE : |
| return new Byte(value); |
| case AttributeDefinition.DOUBLE : |
| return new Double(value); |
| case AttributeDefinition.FLOAT : |
| return new Float(value); |
| case AttributeDefinition.BIGINTEGER : |
| try { |
| Class bigIntClazz = Class.forName("java.math.BigInteger");//$NON-NLS-1$ |
| Constructor bigIntConstructor = bigIntClazz.getConstructor(new Class[] {String.class}); |
| return bigIntConstructor.newInstance(new Object[] {value}); |
| } catch (ClassNotFoundException e) { |
| e.printStackTrace(); |
| return null; |
| } catch (SecurityException e) { |
| e.printStackTrace(); |
| return null; |
| } catch (NoSuchMethodException e) { |
| e.printStackTrace(); |
| return null; |
| } catch (IllegalArgumentException e) { |
| e.printStackTrace(); |
| return null; |
| } catch (InstantiationException e) { |
| e.printStackTrace(); |
| return null; |
| } catch (IllegalAccessException e) { |
| e.printStackTrace(); |
| return null; |
| } catch (InvocationTargetException e) { |
| e.printStackTrace(); |
| return null; |
| } |
| case AttributeDefinition.BIGDECIMAL : |
| try { |
| Class bigDecimalClazz = Class.forName("java.math.BigDecimal");//$NON-NLS-1$ |
| Constructor bigDecimalConstructor = bigDecimalClazz.getConstructor(new Class[] {String.class}); |
| return bigDecimalConstructor.newInstance(new Object[] {value}); |
| } catch (ClassNotFoundException e) { |
| e.printStackTrace(); |
| return null; |
| } catch (SecurityException e) { |
| e.printStackTrace(); |
| return null; |
| } catch (NoSuchMethodException e) { |
| e.printStackTrace(); |
| return null; |
| } catch (IllegalArgumentException e) { |
| e.printStackTrace(); |
| return null; |
| } catch (InstantiationException e) { |
| e.printStackTrace(); |
| return null; |
| } catch (IllegalAccessException e) { |
| e.printStackTrace(); |
| return null; |
| } catch (InvocationTargetException e) { |
| e.printStackTrace(); |
| return null; |
| } |
| case AttributeDefinition.BOOLEAN : |
| return new Boolean(value); |
| default : |
| // Unknown data type |
| return null; |
| } |
| } |
| |
| /** |
| * Abstract of all Handlers. |
| */ |
| private class AbstractHandler extends DefaultHandler { |
| |
| protected ContentHandler _doc_handler; |
| protected boolean _isParsedDataValid = true; |
| |
| public AbstractHandler(ContentHandler parentHandler) { |
| |
| this._doc_handler = parentHandler; |
| _dp_xmlReader.setContentHandler(this); |
| } |
| |
| public void startElement(String uri, String localName, String qName, Attributes attributes) throws SAXException { |
| |
| throw new SAXException(NLS.bind(MetaTypeMsg.UNEXPECTED_ELEMENT, qName)); |
| } |
| |
| public void characters(char[] buf, int start, int end) throws SAXException { |
| |
| String s = new String(buf, start, end).trim(); |
| if (s.length() > 0) { |
| throw new SAXException(NLS.bind(MetaTypeMsg.UNEXPECTED_TEXT, s)); |
| } |
| } |
| |
| /** |
| * Called when this element and all elements nested into it have been |
| * handled. |
| */ |
| protected void finished() throws SAXException { |
| // do nothing by default |
| } |
| |
| public void endElement(String namespaceURI, String localName, String qName) throws SAXException { |
| |
| finished(); |
| // Let parent resume handling SAX events |
| _dp_xmlReader.setContentHandler(_doc_handler); |
| } |
| } |
| |
| /** |
| * Handler for the root element. |
| */ |
| private class RootHandler extends DefaultHandler { |
| |
| public RootHandler() { |
| super(); |
| } |
| |
| public void startElement(String uri, String localName, String qName, Attributes attributes) throws SAXException { |
| |
| Logging.log(Logging.TRACE, "Here is AbstractHandler:startElement():" //$NON-NLS-1$ |
| + qName); |
| String name = getName(localName, qName); |
| if (name.equalsIgnoreCase(METADATA)) { |
| new MetaDataHandler(this).init(name, attributes); |
| } else { |
| Logging.log(Logging.WARN, NLS.bind(MetaTypeMsg.UNEXPECTED_ELEMENT, name)); |
| } |
| } |
| |
| public void setDocumentLocator(Locator locator) { |
| // do nothing |
| } |
| } |
| |
| /** |
| * Handler for the MetaData element. |
| */ |
| private class MetaDataHandler extends AbstractHandler { |
| |
| public MetaDataHandler(ContentHandler handler) { |
| super(handler); |
| } |
| |
| public void init(String name, Attributes attributes) throws SAXException { |
| |
| Logging.log(Logging.TRACE, "Here is MetaDataHandler():init()"); //$NON-NLS-1$ |
| _dp_localization = attributes.getValue(LOCALIZATION); |
| if (_dp_localization == null) { |
| // Not a problem, because LOCALIZATION is an optional attribute. |
| } |
| // The global variable "_dp_localization" will be used within |
| // OcdHandler and AttributeDefinitionHandler later. |
| } |
| |
| public void startElement(String uri, String localName, String qName, Attributes atts) throws SAXException { |
| |
| Logging.log(Logging.TRACE, "Here is MetaDataHandler:startElement():" //$NON-NLS-1$ |
| + qName); |
| String name = getName(localName, qName); |
| if (name.equalsIgnoreCase(DESIGNATE)) { |
| DesignateHandler designateHandler = new DesignateHandler(this); |
| designateHandler.init(name, atts); |
| if (designateHandler._isParsedDataValid) { |
| _dp_designateHandlers.addElement(designateHandler); |
| } |
| } else if (name.equalsIgnoreCase(OCD)) { |
| OcdHandler ocdHandler = new OcdHandler(this); |
| ocdHandler.init(name, atts, _dp_OCDs); |
| } else { |
| Logging.log(Logging.WARN, NLS.bind(MetaTypeMsg.UNEXPECTED_ELEMENT, name)); |
| } |
| } |
| |
| protected void finished() throws SAXException { |
| |
| Logging.log(Logging.TRACE, "Here is MetaDataHandler():finished()"); //$NON-NLS-1$ |
| if (_dp_designateHandlers.size() == 0) { |
| // Schema defines at least one DESIGNATE is required. |
| _isParsedDataValid = false; |
| Logging.log(Logging.ERROR, this, "finished()", //$NON-NLS-1$ |
| NLS.bind(MetaTypeMsg.MISSING_ELEMENT, DESIGNATE)); |
| return; |
| } |
| Enumeration designateHandlerKeys = _dp_designateHandlers.elements(); |
| while (designateHandlerKeys.hasMoreElements()) { |
| DesignateHandler designateHandler = (DesignateHandler) designateHandlerKeys.nextElement(); |
| |
| ObjectClassDefinitionImpl ocd = (ObjectClassDefinitionImpl) _dp_OCDs.get(designateHandler._ocdref); |
| if (ocd != null) { |
| if (designateHandler._factory_val == null) { |
| ocd.setType(ObjectClassDefinitionImpl.PID); |
| _dp_pid_to_OCDs_.put(designateHandler._pid_val,ocd); |
| } else { |
| ocd.setType(ObjectClassDefinitionImpl.FPID); |
| _dp_pid_to_OCDs_.put(designateHandler._factory_val,ocd); |
| } |
| } else { |
| Logging.log(Logging.ERROR, this, "finished()", //$NON-NLS-1$ |
| NLS.bind(MetaTypeMsg.OCD_ID_NOT_FOUND, designateHandler._ocdref)); |
| } |
| } |
| } |
| } |
| |
| /** |
| * Handler for the ObjectClassDefinition element. |
| */ |
| private class OcdHandler extends AbstractHandler { |
| |
| Hashtable _parent_OCDs_hashtable; |
| // This ID "_refID" is only used for reference by Designate element, |
| // not the PID or FPID of this OCD. |
| String _refID; |
| ObjectClassDefinitionImpl _ocd; |
| Vector _ad_vector = new Vector(7); |
| |
| public OcdHandler(ContentHandler handler) { |
| super(handler); |
| } |
| |
| public void init(String name, Attributes atts, Hashtable ocds_hashtable) throws SAXException { |
| |
| Logging.log(Logging.TRACE, "Here is OcdHandler():init()"); //$NON-NLS-1$ |
| _parent_OCDs_hashtable = ocds_hashtable; |
| |
| String ocd_name_val = atts.getValue(NAME); |
| if (ocd_name_val == null) { |
| _isParsedDataValid = false; |
| Logging.log(Logging.ERROR, this, "init(String, Attributes, Hashtable)", //$NON-NLS-1$ |
| NLS.bind(MetaTypeMsg.MISSING_ATTRIBUTE, NAME, name)); |
| return; |
| } |
| |
| String ocd_description_val = atts.getValue(DESCRIPTION); |
| if (ocd_description_val == null) { |
| // Not a problem, because DESCRIPTION is an optional attribute. |
| } |
| |
| _refID = atts.getValue(ID); |
| if (_refID == null) { |
| _isParsedDataValid = false; |
| Logging.log(Logging.ERROR, this, "init(String, Attributes, Hashtable)", //$NON-NLS-1$ |
| NLS.bind(MetaTypeMsg.MISSING_ATTRIBUTE, ID, name)); |
| return; |
| } |
| |
| _ocd = new ObjectClassDefinitionImpl(ocd_name_val, ocd_description_val, _refID, _dp_localization); |
| } |
| |
| public void startElement(String uri, String localName, String qName, Attributes atts) throws SAXException { |
| |
| Logging.log(Logging.TRACE, "Here is OcdHandler:startElement():" //$NON-NLS-1$ |
| + qName); |
| if (!_isParsedDataValid) |
| return; |
| |
| String name = getName(localName, qName); |
| if (name.equalsIgnoreCase(AD)) { |
| AttributeDefinitionHandler attributeDefHandler = new AttributeDefinitionHandler(this); |
| attributeDefHandler.init(name, atts, _ad_vector); |
| } else if (name.equalsIgnoreCase(ICON)) { |
| IconHandler iconHandler = new IconHandler(this); |
| iconHandler.init(name, atts); |
| if (iconHandler._isParsedDataValid) { |
| // Because XML schema allows at most one icon for |
| // one OCD, if more than one icons are read from |
| // MetaData, then only the final icon will be kept. |
| _ocd.setIcon(iconHandler._icon); |
| } |
| } else { |
| Logging.log(Logging.WARN, NLS.bind(MetaTypeMsg.UNEXPECTED_ELEMENT, name)); |
| } |
| } |
| |
| protected void finished() throws SAXException { |
| |
| Logging.log(Logging.TRACE, "Here is OcdHandler():finished()"); //$NON-NLS-1$ |
| if (!_isParsedDataValid) |
| return; |
| |
| if (_ad_vector.size() == 0) { |
| // Schema defines at least one AD is required. |
| _isParsedDataValid = false; |
| Logging.log(Logging.ERROR, this, "finished()", //$NON-NLS-1$ |
| NLS.bind(MetaTypeMsg.MISSING_ELEMENT, AD, _refID)); |
| return; |
| } |
| // OCD gets all parsed ADs. |
| Enumeration adKey = _ad_vector.elements(); |
| while (adKey.hasMoreElements()) { |
| AttributeDefinitionImpl ad = (AttributeDefinitionImpl) adKey.nextElement(); |
| _ocd.addAttributeDefinition(ad, ad._isRequired); |
| } |
| |
| _parent_OCDs_hashtable.put(_refID, _ocd); |
| } |
| } |
| |
| /** |
| * Handler for the Icon element. |
| */ |
| private class IconHandler extends AbstractHandler { |
| |
| Icon _icon; |
| |
| public IconHandler(ContentHandler handler) { |
| super(handler); |
| } |
| |
| public void init(String name, Attributes atts) throws SAXException { |
| |
| Logging.log(Logging.TRACE, "Here is IconHandler:init()"); //$NON-NLS-1$ |
| String icon_resource_val = atts.getValue(RESOURCE); |
| if (icon_resource_val == null) { |
| _isParsedDataValid = false; |
| Logging.log(Logging.ERROR, this, "init(String, Attributes)", //$NON-NLS-1$ |
| NLS.bind(MetaTypeMsg.MISSING_ATTRIBUTE, RESOURCE, name)); |
| return; |
| } |
| |
| String icon_size_val = atts.getValue(SIZE); |
| if (icon_size_val == null) { |
| // Not a problem, because SIZE is an optional attribute. |
| icon_size_val = "0"; //$NON-NLS-1$ |
| } else if (icon_size_val.equalsIgnoreCase("")) { //$NON-NLS-1$ |
| icon_size_val = "0"; //$NON-NLS-1$ |
| } |
| |
| _icon = new Icon(icon_resource_val, Integer.parseInt(icon_size_val), _dp_bundle); |
| } |
| } |
| |
| /** |
| * Handler for the Attribute element. |
| */ |
| private class AttributeDefinitionHandler extends AbstractHandler { |
| |
| AttributeDefinitionImpl _ad; |
| int _dataType; |
| |
| Vector _parent_ADs_vector; |
| Vector _optionLabel_vector = new Vector(7); |
| Vector _optionValue_vector = new Vector(7); |
| |
| public AttributeDefinitionHandler(ContentHandler handler) { |
| super(handler); |
| } |
| |
| public void init(String name, Attributes atts, Vector ad_vector) throws SAXException { |
| |
| Logging.log(Logging.TRACE, "Here is AttributeDefinitionHandler():init()"); //$NON-NLS-1$ |
| _parent_ADs_vector = ad_vector; |
| |
| String ad_name_val = atts.getValue(NAME); |
| if (ad_name_val == null) { |
| // Not a problem, because NAME is an optional attribute. |
| } |
| |
| String ad_description_val = atts.getValue(DESCRIPTION); |
| if (ad_description_val == null) { |
| // Not a problem, because DESCRIPTION is an optional attribute. |
| } |
| |
| String ad_id_val = atts.getValue(ID); |
| if (ad_id_val == null) { |
| _isParsedDataValid = false; |
| Logging.log(Logging.ERROR, this, "init(String, Attributes, Vector)", //$NON-NLS-1$ |
| NLS.bind(MetaTypeMsg.MISSING_ATTRIBUTE, ID, name)); |
| return; |
| } |
| |
| String ad_type_val = atts.getValue(TYPE); |
| if (ad_type_val.equalsIgnoreCase(STRING)) { |
| _dataType = AttributeDefinition.STRING; |
| } else if (ad_type_val.equalsIgnoreCase(LONG)) { |
| _dataType = AttributeDefinition.LONG; |
| } else if (ad_type_val.equalsIgnoreCase(DOUBLE)) { |
| _dataType = AttributeDefinition.DOUBLE; |
| } else if (ad_type_val.equalsIgnoreCase(FLOAT)) { |
| _dataType = AttributeDefinition.FLOAT; |
| } else if (ad_type_val.equalsIgnoreCase(INTEGER)) { |
| _dataType = AttributeDefinition.INTEGER; |
| } else if (ad_type_val.equalsIgnoreCase(BYTE)) { |
| _dataType = AttributeDefinition.BYTE; |
| } else if (ad_type_val.equalsIgnoreCase(CHAR)) { |
| _dataType = AttributeDefinition.CHARACTER; |
| } else if (ad_type_val.equalsIgnoreCase(BOOLEAN)) { |
| _dataType = AttributeDefinition.BOOLEAN; |
| } else if (ad_type_val.equalsIgnoreCase(SHORT)) { |
| _dataType = AttributeDefinition.SHORT; |
| } else { |
| _isParsedDataValid = false; |
| Logging.log(Logging.ERROR, this, "init(String, Attributes, Vector)", //$NON-NLS-1$ |
| NLS.bind(MetaTypeMsg.MISSING_ATTRIBUTE, TYPE, name)); |
| return; |
| |
| } |
| |
| String ad_cardinality_str = atts.getValue(CARDINALITY); |
| int ad_cardinality_val = 0; |
| if (ad_cardinality_str == null) { |
| // Not a problem, because CARDINALITY is an optional attribute. |
| // And the default value is 0. |
| } else { |
| ad_cardinality_val = Integer.parseInt(ad_cardinality_str); |
| } |
| |
| String ad_min_val = atts.getValue(MIN); |
| if (ad_min_val == null) { |
| // Not a problem, because MIN is an optional attribute. |
| } |
| |
| String ad_max_val = atts.getValue(MAX); |
| if (ad_max_val == null) { |
| // Not a problem, because MAX is an optional attribute. |
| } |
| |
| String ad_defaults_str = atts.getValue(DEFAULT); |
| if (ad_defaults_str == null) { |
| // Not a problem, because DEFAULT is an optional attribute. |
| if (ad_cardinality_val == 0) { |
| // But when it is not assigned, CARDINALITY cannot be '0'. |
| _isParsedDataValid = false; |
| Logging.log(Logging.ERROR, this, "init(String, Attributes, Vector)", //$NON-NLS-1$ |
| MetaTypeMsg.NULL_DEFAULTS); |
| return; |
| } |
| } |
| |
| String ad_required_val = atts.getValue(REQUIRED); |
| if (ad_required_val == null) { |
| // Not a problem, because REQUIRED is an optional attribute. |
| // And the default value is 'true'. |
| ad_required_val = Boolean.TRUE.toString(); |
| } |
| |
| _ad = new AttributeDefinitionImpl(ad_id_val, ad_name_val, ad_description_val, _dataType, ad_cardinality_val, convert(ad_min_val, _dataType), convert(ad_max_val, _dataType), Boolean.valueOf(ad_required_val).booleanValue(), _dp_localization); |
| |
| if (ad_cardinality_val == 0) { |
| // Attribute DEFAULT has one and only one occurance. |
| _ad.setDefaultValue(new String[] {ad_defaults_str}, false); |
| } else { |
| // Attribute DEFAULT is a comma delimited list. |
| _ad.setDefaultValue(ad_defaults_str, false); |
| } |
| } |
| |
| public void startElement(String uri, String localName, String qName, Attributes atts) throws SAXException { |
| |
| Logging.log(Logging.TRACE, "Here is AttributeDefinitionHandler:startElement():" //$NON-NLS-1$ |
| + qName); |
| if (!_isParsedDataValid) |
| return; |
| |
| String name = getName(localName, qName); |
| if (name.equalsIgnoreCase(OPTION)) { |
| OptionHandler optionHandler = new OptionHandler(this); |
| optionHandler.init(name, atts); |
| if (optionHandler._isParsedDataValid) { |
| // Only add valid Option |
| _optionLabel_vector.addElement(optionHandler._label_val); |
| _optionValue_vector.addElement(optionHandler._value_val); |
| } |
| } else { |
| Logging.log(Logging.WARN, NLS.bind(MetaTypeMsg.UNEXPECTED_ELEMENT, name)); |
| } |
| } |
| |
| protected void finished() throws SAXException { |
| |
| Logging.log(Logging.TRACE, "Here is AttributeDefinitionHandler():finished()"); //$NON-NLS-1$ |
| if (!_isParsedDataValid) |
| return; |
| |
| _ad.setOption(_optionLabel_vector, _optionValue_vector, true); |
| _parent_ADs_vector.addElement(_ad); |
| } |
| } |
| |
| /** |
| * Handler for the Option element. |
| */ |
| private class OptionHandler extends AbstractHandler { |
| |
| String _label_val; |
| String _value_val; |
| |
| public OptionHandler(ContentHandler handler) { |
| super(handler); |
| } |
| |
| public void init(String name, Attributes atts) throws SAXException { |
| |
| Logging.log(Logging.TRACE, "Here is OptionHandler:init()"); //$NON-NLS-1$ |
| _label_val = atts.getValue(LABEL); |
| if (_label_val == null) { |
| _isParsedDataValid = false; |
| Logging.log(Logging.ERROR, this, "init(String, Attributes)", //$NON-NLS-1$ |
| NLS.bind(MetaTypeMsg.MISSING_ATTRIBUTE, LABEL, name)); |
| return; |
| } |
| |
| _value_val = atts.getValue(VALUE); |
| if (_value_val == null) { |
| _isParsedDataValid = false; |
| Logging.log(Logging.ERROR, this, "init(String, Attributes)", //$NON-NLS-1$ |
| NLS.bind(MetaTypeMsg.MISSING_ATTRIBUTE, VALUE, name)); |
| return; |
| } |
| } |
| } |
| |
| // /** |
| // * Handler for the Simple Value element. |
| // */ |
| // private class SimpleValueHandler extends AbstractHandler { |
| // |
| // StringBuffer _buffer = new StringBuffer(); |
| // Vector _parent_value_vector; |
| // String _elementName; |
| // |
| // public SimpleValueHandler(ContentHandler handler) { |
| // super(handler); |
| // } |
| // |
| // public void init(String name, Attributes atts, Vector value_vector) |
| // throws SAXException { |
| // |
| // Logging.log(Logging.TRACE, |
| // "Here is SimpleValueHandler():init()"); //$NON-NLS-1$ |
| // _elementName = name; |
| // _parent_value_vector = value_vector; |
| // } |
| // |
| // protected void finished() throws SAXException { |
| // |
| // Logging.log(Logging.TRACE, |
| // "Here is SimpleValueHandler():finished()"); //$NON-NLS-1$ |
| // if (_parent_value_vector != null) { |
| // _parent_value_vector.addElement(_buffer.toString()); |
| // } |
| // } |
| // |
| // public void characters(char buf[], int offset, int len) |
| // throws SAXException { |
| // |
| // Logging.log(Logging.TRACE, |
| // "Here is SimpleValueHandler(" //$NON-NLS-1$ |
| // + _elementName |
| // + "):characters():[" //$NON-NLS-1$ |
| // + new String(buf, offset, len) |
| // + "]"); //$NON-NLS-1$ |
| // _buffer.append(new String(buf, offset, len)); |
| // } |
| // } |
| |
| /** |
| * Handler for the Designate element. |
| */ |
| private class DesignateHandler extends AbstractHandler { |
| |
| String _pid_val = null; |
| String _factory_val = null; |
| String _bundle_val = null; // Only used by RFC94 |
| boolean _optional_val = false; // Only used by RFC94 |
| boolean _merge_val = false; // Only used by RFC94 |
| |
| // Referenced OCD ID |
| String _ocdref; |
| |
| public DesignateHandler(ContentHandler handler) { |
| super(handler); |
| } |
| |
| public void init(String name, Attributes atts) throws SAXException { |
| |
| Logging.log(Logging.TRACE, "Here is DesignateHandler():init()"); //$NON-NLS-1$ |
| _pid_val = atts.getValue(PID); |
| if (_pid_val == null) { |
| _isParsedDataValid = false; |
| Logging.log(Logging.ERROR, this, "init(String, Attributes)", //$NON-NLS-1$ |
| NLS.bind(MetaTypeMsg.MISSING_ATTRIBUTE, PID, name)); |
| return; |
| } |
| _factory_val = atts.getValue(FACTORY); |
| |
| _bundle_val = atts.getValue(BUNDLE); |
| if (_bundle_val == null) { |
| // Not a problem because BUNDLE is an optional attribute. |
| } |
| |
| String optional_str = atts.getValue(OPTIONAL); |
| if (optional_str == null) { |
| // Not a problem, because OPTIONAL is an optional attribute. |
| // The default value is "false". |
| _optional_val = false; |
| } else { |
| _optional_val = Boolean.valueOf(optional_str).booleanValue(); |
| } |
| |
| String merge_str = atts.getValue(MERGE); |
| if (merge_str == null) { |
| // Not a problem, because MERGE is an optional attribute. |
| // The default value is "false". |
| _merge_val = false; |
| } else { |
| _merge_val = Boolean.valueOf(merge_str).booleanValue(); |
| } |
| } |
| |
| public void startElement(String uri, String localName, String qName, Attributes atts) throws SAXException { |
| |
| Logging.log(Logging.TRACE, "Here is DesignateHandler:startElement():" //$NON-NLS-1$ |
| + qName); |
| if (!_isParsedDataValid) |
| return; |
| |
| String name = getName(localName, qName); |
| if (name.equalsIgnoreCase(OBJECT)) { |
| ObjectHandler objectHandler = new ObjectHandler(this); |
| objectHandler.init(name, atts); |
| if (objectHandler._isParsedDataValid) { |
| _ocdref = objectHandler._ocdref; |
| } |
| } else { |
| Logging.log(Logging.WARN, NLS.bind(MetaTypeMsg.UNEXPECTED_ELEMENT, name)); |
| } |
| } |
| |
| protected void finished() throws SAXException { |
| |
| Logging.log(Logging.TRACE, "Here is DesignateHandler():finished()"); //$NON-NLS-1$ |
| if (!_isParsedDataValid) |
| return; |
| |
| if (_ocdref == null) { |
| _isParsedDataValid = false; |
| // Schema defines at least one OBJECT is required. |
| Logging.log(Logging.ERROR, this, "finished()", //$NON-NLS-1$ |
| NLS.bind(MetaTypeMsg.MISSING_ELEMENT, OBJECT, _pid_val)); |
| return; |
| |
| } |
| } |
| } |
| |
| /** |
| * Handler for the Object element. |
| */ |
| private class ObjectHandler extends AbstractHandler { |
| |
| String _ocdref; |
| |
| public ObjectHandler(ContentHandler handler) { |
| super(handler); |
| } |
| |
| public void init(String name, Attributes atts) throws SAXException { |
| |
| Logging.log(Logging.TRACE, "Here is ObjectHandler():init()"); //$NON-NLS-1$ |
| _ocdref = atts.getValue(OCDREF); |
| if (_ocdref == null) { |
| _isParsedDataValid = false; |
| Logging.log(Logging.ERROR, this, "init(String, Attributes)", //$NON-NLS-1$ |
| NLS.bind(MetaTypeMsg.MISSING_ATTRIBUTE, OCDREF, name)); |
| return; |
| } |
| } |
| |
| public void startElement(String uri, String localName, String qName, Attributes atts) throws SAXException { |
| |
| Logging.log(Logging.TRACE, "Here is ObjectHandler:startElement():" //$NON-NLS-1$ |
| + qName); |
| if (!_isParsedDataValid) |
| return; |
| |
| String name = getName(localName, qName); |
| if (name.equalsIgnoreCase(ATTRIBUTE)) { |
| AttributeHandler attributeHandler = new AttributeHandler(this); |
| attributeHandler.init(name, atts); |
| // The ATTRIBUTE element is only used by RFC94, do nothing for it here. |
| } else { |
| Logging.log(Logging.WARN, NLS.bind(MetaTypeMsg.UNEXPECTED_ELEMENT, name)); |
| } |
| } |
| } |
| |
| /** |
| * Handler for the Attribute element. |
| * |
| * This Handler is only used by RFC94. |
| */ |
| private class AttributeHandler extends AbstractHandler { |
| |
| String _adref_val; |
| String _content_val; |
| |
| public AttributeHandler(ContentHandler handler) { |
| super(handler); |
| } |
| |
| public void init(String name, Attributes atts) throws SAXException { |
| |
| Logging.log(Logging.TRACE, "Here is AttributeHandler():init()"); //$NON-NLS-1$ |
| _adref_val = atts.getValue(ADREF); |
| if (_adref_val == null) { |
| _isParsedDataValid = false; |
| Logging.log(Logging.ERROR, this, "init(String, Attributes)", //$NON-NLS-1$ |
| NLS.bind(MetaTypeMsg.MISSING_ATTRIBUTE, ADREF, name)); |
| return; |
| } |
| |
| _content_val = atts.getValue(CONTENT); |
| if (_content_val == null) { |
| _isParsedDataValid = false; |
| Logging.log(Logging.ERROR, this, "init(String, Attributes)", //$NON-NLS-1$ |
| NLS.bind(MetaTypeMsg.MISSING_ATTRIBUTE, CONTENT, name)); |
| return; |
| } |
| } |
| } |
| |
| /** |
| * Error Handler to report errors and warnings |
| */ |
| private static class MyErrorHandler implements ErrorHandler { |
| |
| /** Error handler output goes here */ |
| private PrintStream _out; |
| |
| MyErrorHandler(PrintStream out) { |
| this._out = out; |
| } |
| |
| /** |
| * Returns a string describing parse exception details |
| */ |
| private String getParseExceptionInfo(SAXParseException spe) { |
| String systemId = spe.getSystemId(); |
| if (systemId == null) { |
| systemId = "null"; //$NON-NLS-1$ |
| } |
| String info = "URI=" + systemId + //$NON-NLS-1$ |
| " Line=" + spe.getLineNumber() + //$NON-NLS-1$ |
| ": " + spe.getMessage(); //$NON-NLS-1$ |
| |
| return info; |
| } |
| |
| // The following methods are standard SAX ErrorHandler methods. |
| // See SAX documentation for more info. |
| |
| public void warning(SAXParseException spe) throws SAXException { |
| _out.println("Warning: " + getParseExceptionInfo(spe)); //$NON-NLS-1$ |
| } |
| |
| public void error(SAXParseException spe) throws SAXException { |
| String message = "Error: " + getParseExceptionInfo(spe); //$NON-NLS-1$ |
| throw new SAXException(message); |
| } |
| |
| public void fatalError(SAXParseException spe) throws SAXException { |
| String message = "Fatal Error: " + getParseExceptionInfo(spe); //$NON-NLS-1$ |
| throw new SAXException(message); |
| } |
| } |
| |
| public static String getName(String localName, String qName) { |
| if (localName != null && localName.length() > 0) { |
| return localName; |
| } |
| |
| int nameSpaceIndex = qName.indexOf(":"); //$NON-NLS-1$ |
| return nameSpaceIndex == -1 ? qName : qName.substring(nameSpaceIndex + 1); |
| } |
| } |
