/**
* Imports data stored in an export file
*
* @param apps The applications in the PRISMS environment
* @return Whether the import succeeded
*/
public boolean importData(PrismsApplication[] apps) {
try {
java.util.HashMap<String, PrismsSynchronizer> syncs;
java.util.HashMap<String, PrismsApplication> appsByNS;
syncs = new java.util.HashMap<String, PrismsSynchronizer>();
appsByNS = new java.util.HashMap<String, PrismsApplication>();
for (PrismsApplication app : apps) {
for (prisms.arch.event.PrismsProperty<?> property : app.getGlobalProperties()) {
if (PrismsSynchronizer.class.isAssignableFrom(property.getType())) {
PrismsSynchronizer sync = (PrismsSynchronizer) app.getGlobalProperty(property);
if (sync == null || !(sync.getKeeper() instanceof DBRecordKeeper)) continue;
syncs.put(((DBRecordKeeper) sync.getKeeper()).getNamespace(), sync);
appsByNS.put(((DBRecordKeeper) sync.getKeeper()).getNamespace(), app);
}
}
}
if (!theJsonReader.goToProperty("data")) {
log.error("No \"data\" property found in exported data");
return false;
}
JsonSerialReader.StructState rootState = theJsonReader.startArray();
JsonSerialReader.JsonParseItem item;
StringBuilder message = new StringBuilder();
message
.append("Imported PRISMS data from ")
.append(prisms.util.PrismsUtils.print(theExportDataTime))
.append(" (");
prisms.util.PrismsUtils.printTimeLength(
System.currentTimeMillis() - theExportDataTime, message, false);
message.append(" old).");
for (item = theJsonReader.getNextItem(true, false);
item instanceof JsonSerialReader.ObjectItem;
item = theJsonReader.getNextItem(true, false)) {
JsonSerialReader.StructState syncState = theJsonReader.save();
try {
/* The current state is now just past the beginning of one synchronizer's exported data */
if (!"namespace".equals(theJsonReader.getNextProperty())) {
message.append("\n\tNamespace expected in sync data set");
continue;
}
String namespace = theJsonReader.parseString();
PrismsSynchronizer sync = syncs.get(namespace);
if (sync == null) {
message.append("\n\tNo synchronizer loaded with namespace " + namespace);
continue;
}
message.append("\n\tImporting data for namespace \"").append(namespace).append('"');
String version;
if (!"version".equals(theJsonReader.getNextProperty())) version = null;
else version = theJsonReader.parseString();
boolean preAI = ((DBRecordKeeper) sync.getKeeper()).hasAbsoluteIntegrity();
((DBRecordKeeper) sync.getKeeper()).setAbsoluteIntegrity(true);
try {
importData(appsByNS.get(namespace), sync, version, theJsonReader, message);
} catch (Exception e) {
message.append("\n\t\tImport failed: ").append(e);
log.error("Could not import data for synchronizer " + namespace, e);
} finally {
((DBRecordKeeper) sync.getKeeper()).setAbsoluteIntegrity(preAI);
}
} finally {
theJsonReader.endObject(syncState);
}
}
theJsonReader.endArray(rootState);
int passwords = 0;
if (theJsonReader.goToProperty("passwords")) {
rootState = theJsonReader.startArray();
prisms.util.LongList pwdData = new prisms.util.LongList();
for (item = theJsonReader.getNextItem(true, false);
item instanceof JsonSerialReader.ObjectItem;
item = theJsonReader.getNextItem(true, false)) {
JsonSerialReader.StructState pwdState = theJsonReader.save();
try {
theJsonReader.goToProperty("userName");
String userName = theJsonReader.parseString();
User user = apps[0].getEnvironment().getUserSource().getUser(userName);
if (user == null) continue;
theJsonReader.goToProperty("passwordData");
theJsonReader.startArray();
Number num;
do {
num = theJsonReader.parseNumber();
if (num != null) pwdData.add(num.longValue());
} while (num != null);
theJsonReader.endArray(null);
try {
apps[0].getEnvironment().getUserSource().setPassword(user, pwdData.toArray(), true);
} catch (prisms.arch.PrismsException e) {
log.error("Could not set password for user " + userName, e);
}
passwords++;
pwdData.clear();
} finally {
theJsonReader.endObject(pwdState);
}
}
theJsonReader.endArray(rootState);
}
message.append("\n\tImported ").append(passwords).append(" passwords");
log.info(message.toString());
return true;
} catch (Exception e) {
log.error("Could not read or parse exported data", e);
return false;
} finally {
close();
}
}
