/**
* Default constructor, called from {@link Open#open}.
*
* @param meta meta data
* @throws IOException I/O Exception
*/
public DiskData(final MetaData meta) throws IOException {
super(meta);
try (final DataInput in = new DataInput(meta.dbfile(DATAINF))) {
meta.read(in);
while (true) {
final String k = string(in.readToken());
if (k.isEmpty()) break;
if (k.equals(DBTAGS)) elemNames = new Names(in, meta);
else if (k.equals(DBATTS)) attrNames = new Names(in, meta);
else if (k.equals(DBPATH)) paths = new PathSummary(this, in);
else if (k.equals(DBNS)) nspaces = new Namespaces(in);
else if (k.equals(DBDOCS)) resources.read(in);
}
}
// open data and indexes
init();
if (meta.updindex) {
idmap = new IdPreMap(meta.dbfile(DATAIDP));
if (meta.textindex) textIndex = new UpdatableDiskValues(this, true);
if (meta.attrindex) attrIndex = new UpdatableDiskValues(this, false);
} else {
if (meta.textindex) textIndex = new DiskValues(this, true);
if (meta.attrindex) attrIndex = new DiskValues(this, false);
}
if (meta.ftxtindex) ftxtIndex = new FTIndex(this);
}
/**
* Lists all databases.
*
* @return success flag
* @throws IOException I/O exception
*/
private boolean list() throws IOException {
final Table table = new Table();
table.description = DATABASES_X;
final boolean create = context.user.has(Perm.CREATE);
table.header.add(T_NAME);
table.header.add(RESOURCES);
table.header.add(SIZE);
if (create) table.header.add(INPUT_PATH);
for (final String name : context.databases.listDBs()) {
String file = null;
long size = 0;
int docs = 0;
final MetaData meta = new MetaData(name, context);
try {
meta.read();
size = meta.dbsize();
docs = meta.ndocs;
if (context.perm(Perm.READ, meta)) file = meta.original;
} catch (final IOException ex) {
file = ERROR;
}
// count number of raw files
final IOFile dir = new IOFile(mprop.dbpath(name), M_RAW);
final int bin = dir.descendants().size();
// create entry
if (file != null) {
final TokenList tl = new TokenList(4);
tl.add(name);
tl.add(docs + bin);
tl.add(size);
if (create) tl.add(file);
table.contents.add(tl);
}
}
out.println(table.sort().finish());
return true;
}