@SuppressWarnings("unchecked")
@Override
public Collection<GatewayMixer> getMixers() {
log.debug("Getting list with all active mixers");
try {
List<GatewayMixer> mixers = new ArrayList<GatewayMixer>();
Selector selector = Pelops.createSelector(schemaName);
LinkedHashMap<Bytes, List<Column>> rows =
selector.getColumnsFromRows(
"mixers",
Selector.newKeyRange("", "", 10000), // 10000 mixers limit,
false,
ConsistencyLevel.ONE);
for (Map.Entry<Bytes, List<Column>> row : rows.entrySet()) {
if (row.getValue().size() > 0) {
mixers.add(buildMixer(row.getValue(), row.getKey().toUTF8()));
}
}
return mixers;
} catch (PelopsException pe) {
log.error(pe.getMessage(), pe);
return Collections.EMPTY_LIST;
}
}
@Override
public RayoNode getNode(String rayoNode) {
log.debug("Getting node with id: [%s]", rayoNode);
RayoNode node = null;
try {
Selector selector = Pelops.createSelector(schemaName);
Map<String, List<SuperColumn>> rows =
selector.getSuperColumnsFromRowsUtf8Keys(
"nodes",
Selector.newKeyRange("", "", 100), // 100 platforms limit should be enough :)
Selector.newColumnsPredicate(rayoNode),
ConsistencyLevel.ONE);
Iterator<Entry<String, List<SuperColumn>>> it = rows.entrySet().iterator();
while (it.hasNext()) {
Entry<String, List<SuperColumn>> element = it.next();
String currPlatform = element.getKey();
List<SuperColumn> platformOccurrences = element.getValue();
for (SuperColumn column : platformOccurrences) {
if (node == null) {
node = new RayoNode();
node = buildNode(column.getColumns());
node.setHostname(rayoNode);
}
node.addPlatform(currPlatform);
}
}
} catch (PelopsException pe) {
log.error(pe.getMessage(), pe);
return null;
}
return node;
}
@SuppressWarnings("unchecked")
@Override
public List<Application> getApplications() {
try {
log.debug("Finding all applications");
List<Application> applications = new ArrayList<Application>();
Selector selector = Pelops.createSelector(schemaName);
LinkedHashMap<Bytes, List<Column>> rows =
selector.getColumnsFromRows(
"applications",
Selector.newKeyRange("", "", 10000), // 10000 applications limite,
false,
ConsistencyLevel.ONE);
for (Map.Entry<Bytes, List<Column>> row : rows.entrySet()) {
if (row.getValue().size() > 0) {
Application application = new Application(row.getKey().toUTF8());
populateApplicationData(application, row.getValue());
applications.add(application);
}
}
return applications;
} catch (PelopsException pe) {
log.error(pe.getMessage(), pe);
return Collections.EMPTY_LIST;
}
}
@SuppressWarnings("unchecked")
@Override
public List<GatewayVerb> getVerbs() {
log.debug("Getting list with all active verb");
try {
List<GatewayVerb> verbs = new ArrayList<GatewayVerb>();
Selector selector = Pelops.createSelector(schemaName);
LinkedHashMap<Bytes, List<Column>> rows =
selector.getColumnsFromRows(
"verbs",
Selector.newKeyRange("", "", 10000), // 10000 mixers limit,
false,
ConsistencyLevel.ONE);
for (Map.Entry<Bytes, List<Column>> row : rows.entrySet()) {
if (row.getValue().size() > 0) {
for (Column column : row.getValue()) {
GatewayVerb verb =
new GatewayVerb(
row.getKey().toUTF8(),
Bytes.toUTF8(column.getName()),
Bytes.toUTF8(column.getValue()));
verbs.add(verb);
}
}
}
return verbs;
} catch (PelopsException pe) {
log.error(pe.getMessage(), pe);
return Collections.EMPTY_LIST;
}
}
private List<String> getAllRowNames(
String columnFamily, int numColumns, boolean excludeIfLessColumns, String colName) {
List<String> result = new ArrayList<String>();
try {
Selector selector = Pelops.createSelector(schemaName);
final int PAGE_SIZE = 100;
String currRow = "";
while (true) {
SlicePredicate predicate = null;
if (colName == null) {
predicate = Selector.newColumnsPredicateAll(false, numColumns);
} else {
predicate = Selector.newColumnsPredicate(colName, colName, false, numColumns);
}
Map<String, List<Column>> rows =
selector.getColumnsFromRowsUtf8Keys(
columnFamily,
Selector.newKeyRange(currRow, "", PAGE_SIZE),
predicate,
ConsistencyLevel.ONE);
Iterator<Entry<String, List<Column>>> it = rows.entrySet().iterator();
while (it.hasNext()) {
Entry<String, List<Column>> element = it.next();
if (excludeIfLessColumns && element.getValue().size() < numColumns) {
continue;
}
currRow = element.getKey();
if (!result.contains(currRow)) {
result.add(currRow);
}
}
if (rows.keySet().size() < PAGE_SIZE) break;
}
} catch (PelopsException pe) {
log.error(pe.getMessage(), pe);
}
return result;
}