/** Rebuild the Roster index and store it. */
public void reindex() {
Roster roster = new Roster();
for (String fileName : Roster.getAllFileNames()) {
// Read file
try {
Element loco =
(new LocoFile())
.rootFromName(LocoFile.getFileLocation() + fileName)
.getChild("locomotive");
if (loco != null) {
RosterEntry re = new RosterEntry(loco);
re.setFileName(fileName);
roster.addEntry(re);
}
} catch (JDOMException | IOException ex) {
log.error("Exception while loading loco XML file: {} execption: {}", fileName, ex);
}
}
this.makeBackupFile(this.getRosterIndexPath());
try {
roster.writeFile(this.getRosterIndexPath());
} catch (IOException ex) {
log.error("Exception while writing the new roster file, may not be complete: {}", ex);
}
this.reloadRosterFile();
log.info("Roster rebuilt, stored in {}", this.getRosterIndexPath());
}
/**
* Read the contents of a roster XML file into this object.
*
* <p>Note that this does not clear any existing entries.
*
* @param name filename of roster file
*/
void readFile(String name) throws org.jdom2.JDOMException, java.io.IOException {
// roster exists?
if (!(new File(name)).exists()) {
log.debug(
"no roster file found; this is normal if you haven't put decoders in your roster yet");
return;
}
// find root
Element root = rootFromName(name);
if (root == null) {
log.error("Roster file exists, but could not be read; roster not available");
return;
}
// if (log.isDebugEnabled()) XmlFile.dumpElement(root);
// decode type, invoke proper processing routine if a decoder file
if (root.getChild("roster") != null) { // NOI18N
List<Element> l = root.getChild("roster").getChildren("locomotive"); // NOI18N
if (log.isDebugEnabled()) {
log.debug("readFile sees " + l.size() + " children");
}
l.stream()
.forEach(
(e) -> {
addEntry(new RosterEntry(e));
});
// Scan the object to check the Comment and Decoder Comment fields for
// any <?p?> processor directives and change them to back \n characters
for (int i = 0; i < numEntries(); i++) {
// Get a RosterEntry object for this index
RosterEntry r = _list.get(i);
// Extract the Comment field and create a new string for output
String tempComment = r.getComment();
String xmlComment = "";
// transfer tempComment to xmlComment one character at a time, except
// when <?p?> is found. In that case, insert a \n and skip over those
// characters in tempComment.
for (int k = 0; k < tempComment.length(); k++) {
if (tempComment.startsWith("<?p?>", k)) { // NOI18N
xmlComment = xmlComment + "\n"; // NOI18N
k = k + 4;
} else {
xmlComment = xmlComment + tempComment.substring(k, k + 1);
}
}
r.setComment(xmlComment);
// Now do the same thing for the decoderComment field
String tempDecoderComment = r.getDecoderComment();
String xmlDecoderComment = "";
for (int k = 0; k < tempDecoderComment.length(); k++) {
if (tempDecoderComment.startsWith("<?p?>", k)) { // NOI18N
xmlDecoderComment = xmlDecoderComment + "\n"; // NOI18N
k = k + 4;
} else {
xmlDecoderComment = xmlDecoderComment + tempDecoderComment.substring(k, k + 1);
}
}
r.setDecoderComment(xmlDecoderComment);
}
} else {
log.error("Unrecognized roster file contents in file: " + name);
}
if (root.getChild("rosterGroup") != null) { // NOI18N
List<Element> groups = root.getChild("rosterGroup").getChildren("group"); // NOI18N
groups
.stream()
.forEach(
(group) -> {
addRosterGroup(group.getText());
});
}
}