/**
* Print a list of definitions in different format: fqdn, vdlt, and vdlx
*
* @param writer the target to output the list
* @param defList a list of definitions
* @param format the output format
* @see #FORMAT_FQDN
* @see #FORMAT_VDLT
* @see #FORMAT_VDLX NOTE: might be better to move into another module?
*/
public void printDefinitionList(Writer writer, java.util.List defList, int format)
throws IOException {
if (defList == null || defList.isEmpty()) return;
Definitions defs = new Definitions();
if (format != FORMAT_FQDN) {
defs.setDefinition(defList);
if (format == FORMAT_VDLX) defs.toXML(writer, "");
else if (format == FORMAT_VDLT) defs.toString(writer);
} else {
for (Iterator i = defList.iterator(); i.hasNext(); ) {
Definition def = (Definition) i.next();
writer.write(def.identify());
writer.write("\n");
}
writer.flush();
}
}
/**
* This method adds the given Definition to whatever storage is implemented underneath.
*
* @param d is the Definition that is ready to be stored.
* @return true, if new version was stored and database modified
*/
public boolean store(VDL d) {
if (d instanceof Definition) {
this.m_memory = (Definition) d;
Logging.instance().log("chunk", 0, "found " + m_memory.shortID());
return true;
} else {
Logging.instance().log("chunk", 0, "not a definition: " + d.toString());
return false;
}
}
/**
* This method implements the interface defined in DefinitionHandler to save definition to
* database backend.
*
* @param d is the Definition that is ready to be stored.
* @return true, if new version was stored and database modified, false, if the definition was
* rejected for any reason.
*/
public boolean store(Definition d) {
boolean result = false;
VDC vdc = (VDC) m_dbschema;
// NEW: remember all DVs we came across
if (m_derivations != null && d instanceof Derivation) m_derivations.add(d.shortID());
try {
if (m_rejects == null) {
// rely on saveDefinition to do "the right thing"
result = vdc.saveDefinition(d, m_overwrite);
} else {
// Is the Definition already in the database?
if (vdc.containsDefinition(d)) {
if (m_overwrite) {
// this is time-consuming and ineffective
Definition old =
vdc.loadDefinition(d.getNamespace(), d.getName(), d.getVersion(), d.getType());
old.toXML(m_rejects, " ");
result = vdc.saveDefinition(d, true);
} else {
// skip, if not forced to overwrite, but save rejects
d.toXML(m_rejects, " ");
}
} else {
// not found, insert unconditionally
result = vdc.saveDefinition(d, true);
}
}
} catch (SQLException sql) {
// database problems
for (int i = 0; sql != null; ++i) {
m_logger.log(
"database", 0, "SQL error " + i + ": " + sql.getErrorCode() + ": " + sql.getMessage());
sql = sql.getNextException();
}
m_logger.log("database", 0, "ignoring SQL exception(s)");
} catch (Exception e) {
m_logger.log("database", 0, "caught " + e + ", ignoring");
result = false;
}
if (result) m_count++;
else m_rejected++;
return result;
}