protected Document parse(InputStream inputStream) throws LibraryException {
Map<Integer, SongBean> songMap = new HashMap<Integer, SongBean>();
Map<Integer, AlbumBean> albumMap = new HashMap<Integer, AlbumBean>();
Map<Integer, AlbumBean> secondaryAlbumMap = new HashMap<Integer, AlbumBean>();
warningList.clear();
try {
// Create a builder factory
DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
factory.setValidating(false);
factory.setNamespaceAware(true);
factory.setIgnoringElementContentWhitespace(true);
factory.setIgnoringComments(true);
// Create the builder and parse the file
DocumentBuilder builder = factory.newDocumentBuilder();
// Set an error listener and parse the document
builder.setErrorHandler(new iTradeTunesLibraryErrorHandler());
builder.setEntityResolver(new iTradeTunesLibraryResolver());
Document document = builder.parse(inputStream);
synchronized (libraryList) {
// Query the library document and build the library list
XPath xPath = XPathFactory.newInstance().newXPath();
XPathExpression xPathExpression = xPath.compile(XPATH_LIBRARY_LIST);
NodeList nodelist = (NodeList) xPathExpression.evaluate(document, XPathConstants.NODESET);
// Process the elements in the nodelist
SongBean song = null;
for (int i = 0; i < nodelist.getLength(); i++) {
boolean isTrackID = false;
// Get element and child nodes
Element elem = (Element) nodelist.item(i);
NodeList list = elem.getChildNodes();
// Get node value
Node childKey = list.item(0);
String key = childKey.getNodeValue();
// Check if we have to create a new bean
if (SongBean.NAME_TRACK_ID.equals(key)) {
isTrackID = true;
SongBean previousSong = song;
song = new SongBean();
if (previousSong != null
&& !("AAC audio file".equals(previousSong.getKind())
|| "MPEG audio file".equals(previousSong.getKind()))) {
songMap.remove(previousSong.getTrack_ID());
} else {
// Add an album bean
addOrUpdateAlbum(albumMap, previousSong, false);
}
}
// The first parameter is the key
String prop = childKey.getNodeValue().replace(' ', '_');
// The second parameter is the value
i++;
// Get element and child nodes
elem = (Element) nodelist.item(i);
// Check for boolean properties
Object value = null;
// Get node value
list = elem.getChildNodes();
childKey = list.item(0);
value = (childKey == null) ? elem.getNodeName() : childKey.getNodeValue();
if (isTrackID) {
isTrackID = false;
}
// Set the property of the song bean
Statement stmt = new Statement(song, "set" + prop, new Object[] {value});
try {
stmt.execute();
} catch (Exception e) {
// Ignore that field, we do not have it in our bean
}
// If the property is the track ID, add the song to the hash
// map
if (SongBean.NAME_TRACK_ID.equals(key)) {
int trackID = Integer.valueOf((String) value);
songMap.put(trackID, song);
}
}
// Update album for last song
addOrUpdateAlbum(albumMap, song, false);
// Check the album map for inconsistencies
Iterator<AlbumBean> albums = albumMap.values().iterator();
while (albums.hasNext()) {
AlbumBean album = albums.next();
if (album.checkConsistency()) {
libraryList.add(album);
album.setHashCode();
} else {
// Add an inconsistent album only using the album title
SongBean[] songs = album.getSongs();
for (int i = 0; i < songs.length; i++) {
addOrUpdateAlbum(secondaryAlbumMap, songs[i], true);
}
}
}
// Check secondary album map for consistency
albums = secondaryAlbumMap.values().iterator();
while (albums.hasNext()) {
AlbumBean album = albums.next();
if (album.checkConsistency()) {
libraryList.add(album);
album.setHashCode();
} else {
// This album cannot be matched
// TODO: Add to warning message
}
}
setChanged();
}
return document;
} catch (IOException ioe) {
// Log an expected connect exception
throw new LibraryException(ioe);
} catch (SAXException se) {
// Catch all other exceptions
throw new LibraryException(se);
} catch (ParserConfigurationException pce) {
// Catch all other exceptions
Utils.logSevere(pce);
throw new LibraryException(pce);
} catch (XPathExpressionException xpe) {
// Catch all other exceptions
Utils.logSevere(xpe);
throw new LibraryException(xpe);
} catch (NumberFormatException nfe) {
// Catch all other exceptions
throw new LibraryException(nfe);
}
}
/**
* Set the preconfigured event properties resolved by XPath expression.
*
* @param explicitXPathProperties are preconfigured event properties
* @param additionalSchemaProperties the explicit properties
*/
protected void initialize(
Collection<ConfigurationEventTypeXMLDOM.XPathPropertyDesc> explicitXPathProperties,
List<ExplicitPropertyDescriptor> additionalSchemaProperties) {
// make sure we override those explicitly provided with those derived from a metadataz
Map<String, ExplicitPropertyDescriptor> namedProperties =
new LinkedHashMap<String, ExplicitPropertyDescriptor>();
for (ExplicitPropertyDescriptor desc : additionalSchemaProperties) {
namedProperties.put(desc.getDescriptor().getPropertyName(), desc);
}
String xpathExpression = null;
try {
for (ConfigurationEventTypeXMLDOM.XPathPropertyDesc property : explicitXPathProperties) {
XPath xPath = xPathFactory.newXPath();
if (namespaceContext != null) {
xPath.setNamespaceContext(namespaceContext);
}
xpathExpression = property.getXpath();
if (log.isInfoEnabled()) {
log.info(
"Compiling XPath expression for property '"
+ property.getName()
+ "' as '"
+ xpathExpression
+ "'");
}
XPathExpression expression = xPath.compile(xpathExpression);
FragmentFactoryXPathPredefinedGetter fragmentFactory = null;
boolean isFragment = false;
if (property.getOptionaleventTypeName() != null) {
fragmentFactory =
new FragmentFactoryXPathPredefinedGetter(
this.getEventAdapterService(),
property.getOptionaleventTypeName(),
property.getName());
isFragment = true;
}
boolean isArray = false;
if (property.getType().equals(XPathConstants.NODESET)) {
isArray = true;
}
EventPropertyGetter getter =
new XPathPropertyGetter(
property.getName(),
xpathExpression,
expression,
property.getType(),
property.getOptionalCastToType(),
fragmentFactory);
Class returnType =
SchemaUtil.toReturnType(property.getType(), property.getOptionalCastToType());
EventPropertyDescriptor desc =
new EventPropertyDescriptor(
property.getName(), returnType, null, false, false, isArray, false, isFragment);
ExplicitPropertyDescriptor explicit =
new ExplicitPropertyDescriptor(
desc, getter, isArray, property.getOptionaleventTypeName());
namedProperties.put(desc.getPropertyName(), explicit);
}
} catch (XPathExpressionException ex) {
throw new EPException(
"XPath expression could not be compiled for expression '" + xpathExpression + '\'', ex);
}
super.initialize(new ArrayList<ExplicitPropertyDescriptor>(namedProperties.values()));
// evaluate start and end timestamp properties if any
startTimestampPropertyName = configurationEventTypeXMLDOM.getStartTimestampPropertyName();
endTimestampPropertyName = configurationEventTypeXMLDOM.getEndTimestampPropertyName();
EventTypeUtility.validateTimestampProperties(
this, startTimestampPropertyName, endTimestampPropertyName);
}