/**
* This is a method that must be overwritten for the SAXParser. It is called for the charaters
* that lie between tags. Since the parse doesn't guarantee delivery of all of the characters
* between the start and end tags, the HistoryParser must be prepared to receive more than one
* callout before receiving notification of the ending tag.
*
* <p>(non-Javadoc)
*
* @see org.xml.sax.ContentHandler#characters(char[], int, int)
*/
@Override
public void characters(char ch[], int start, int length) throws SAXException {
String data = new String(ch, start, length);
logger.trace(
PC2LogCategory.Parser,
subCat,
curTag + " - CDATA: " + length + " characters. Data=[" + data + "].");
logger.trace(PC2LogCategory.Parser, subCat, "Ignoring characters(" + data + ").");
}
/**
* This is a method that must be overwritten for the SAXParser. It is called by the parser upon
* initiating parsing allowing the application to create any variables or infrastructure it may
* need. The HistoryParser simply logs that it is starting and creates the final History
* container.
*/
@Override
public void startDocument() throws SAXException {
logger.info(
PC2LogCategory.UI, subCat, "HistoryParser - Starting to parse " + History.HISTORY_FILE);
}
public HistoryParser() {
super();
logger = LogAPI.getInstance();
}
@Override
public void endElement(String uri, String name, String qName) throws SAXException {
logger.trace(PC2LogCategory.UI, subCat, "ending element (" + qName + ")");
curTag = null;
}
/**
* This is a method that must be overwritten for the SAXParser. It is called at the start of each
* element and is were the HistoryParser begins to separate the various tags into their respective
* objects. Validation of each mandatory attribute and children elements begins in this method.
*
* <p>(non-Javadoc)
*
* @see org.xml.sax.ContentHandler#startElement(java.lang.String, java.lang.String,
* java.lang.String, org.xml.sax.Attributes)
*/
@Override
public void startElement(String uri, String name, String qName, Attributes atts)
throws SAXException {
logger.trace(PC2LogCategory.UI, subCat, "starting element (" + qName + ")");
logger.trace(PC2LogCategory.UI, subCat, " number of attributes: " + atts.getLength());
curTag = qName;
boolean unrecognizedTag = false;
int count = atts.getLength();
if (qName.equals(PCSIM2)) {
for (int i = 0; i < count; i++) {
String attr = atts.getLocalName(i);
if (attr.equals(VERSION)) {
// Add any versioning operations that might be needed in the future here
// for this initial release though, there is no operation as the version
// is assigned automatically to the History class.
} else {
logger.trace(
PC2LogCategory.UI,
subCat,
"The attribute["
+ attr
+ "] is an unexpected attribute for the "
+ PCSIM2
+ " tag. It has been ignored.");
}
}
if (history == null) history = History.getInstance();
return;
} else {
switch (qName.charAt(0)) {
case 'b':
if (qName.equals(BATCH)) {
for (int i = 0; i < count; i++) {
String attr = atts.getLocalName(i);
if (attr.equals(DIR)) {
File f = new File(atts.getValue(i));
if (f.isDirectory() && f.canRead()) history.lastBatchDirectory = f;
} else {
logger.trace(
PC2LogCategory.UI,
subCat,
"The attribute["
+ attr
+ "] is an unexpected attribute for the "
+ BATCH
+ " tag. It has been ignored.");
}
}
} else unrecognizedTag = true;
break;
case 'd':
if (qName.equals(DCF)) {
for (int i = 0; i < count; i++) {
String attr = atts.getLocalName(i);
if (attr.equals(DIR)) {
File f = new File(atts.getValue(i));
if (f.isDirectory() && f.canRead()) history.lastDCFDirectory = f;
} else {
logger.trace(
PC2LogCategory.UI,
subCat,
"The attribute["
+ attr
+ "] is an unexpected attribute for the "
+ DCF
+ " tag. It has been ignored.");
}
}
} else unrecognizedTag = true;
break;
case 'h':
if (qName.equals(HISTORY)) {
for (int i = 0; i < count; i++) {
String attr = atts.getLocalName(i);
if (attr.equals(FILE)) {
String value = atts.getValue(i);
File f = new File(value);
if (f.isFile() && f.canRead()) history.addHistoryFile(f);
} else {
logger.trace(
PC2LogCategory.UI,
subCat,
"The attribute["
+ attr
+ "] is an unexpected attribute for the "
+ DCF
+ " tag. It has been ignored.");
}
}
} else unrecognizedTag = true;
break;
case 'p':
if (qName.equals(PCF)) {
for (int i = 0; i < count; i++) {
String attr = atts.getLocalName(i);
if (attr.equals(DIR)) {
File f = new File(atts.getValue(i));
if (f.isDirectory() && f.canRead()) history.lastPCFDirectory = f;
} else {
logger.trace(
PC2LogCategory.UI,
subCat,
"The attribute["
+ attr
+ "] is an unexpected attribute for the "
+ PCF
+ " tag. It has been ignored.");
}
}
} else unrecognizedTag = true;
break;
case 's':
if (qName.equals(SCRIPTS)) {
for (int i = 0; i < count; i++) {
String attr = atts.getLocalName(i);
if (attr.equals(DIR)) {
File f = new File(atts.getValue(i));
if (f.isDirectory() && f.canRead()) history.lastScriptsDirectory = f;
} else {
logger.trace(
PC2LogCategory.UI,
subCat,
"The attribute["
+ attr
+ "] is an unexpected attribute for the "
+ SCRIPTS
+ " tag. It has been ignored.");
}
}
} else unrecognizedTag = true;
break;
default:
throw new PC2XMLException(
History.HISTORY_FILE.getName(),
"Encountered unexpected tag(" + qName + ") element.",
l);
}
}
if (unrecognizedTag)
throw new PC2XMLException(
History.HISTORY_FILE.getName(), "Encountered unexpected tag(" + qName + ") element.", l);
}
