public void runQuery() throws IOException {
MultigetSliceQuery<DataPointsRowKey, Integer, ByteBuffer> msliceQuery =
HFactory.createMultigetSliceQuery(
m_keyspace, ROW_KEY_SERIALIZER, IntegerSerializer.get(), ByteBufferSerializer.get());
msliceQuery.setColumnFamily(m_columnFamily);
msliceQuery.setKeys(m_rowKeys);
if (m_descending) msliceQuery.setRange(m_endTime, m_startTime, true, m_multiRowReadSize);
else msliceQuery.setRange(m_startTime, m_endTime, false, m_multiRowReadSize);
Rows<DataPointsRowKey, Integer, ByteBuffer> rows = msliceQuery.execute().get();
List<Row<DataPointsRowKey, Integer, ByteBuffer>> unfinishedRows =
new ArrayList<Row<DataPointsRowKey, Integer, ByteBuffer>>();
for (Row<DataPointsRowKey, Integer, ByteBuffer> row : rows) {
List<HColumn<Integer, ByteBuffer>> columns = row.getColumnSlice().getColumns();
if (!m_limit && columns.size() == m_multiRowReadSize) unfinishedRows.add(row);
writeColumns(row.getKey(), columns);
}
// Iterate through the unfinished rows and get the rest of the data.
// todo: use multiple threads to retrieve this data
for (Row<DataPointsRowKey, Integer, ByteBuffer> unfinishedRow : unfinishedRows) {
DataPointsRowKey key = unfinishedRow.getKey();
SliceQuery<DataPointsRowKey, Integer, ByteBuffer> sliceQuery =
HFactory.createSliceQuery(
m_keyspace, ROW_KEY_SERIALIZER, IntegerSerializer.get(), ByteBufferSerializer.get());
sliceQuery.setColumnFamily(m_columnFamily);
sliceQuery.setKey(key);
List<HColumn<Integer, ByteBuffer>> columns = unfinishedRow.getColumnSlice().getColumns();
do {
Integer lastTime = columns.get(columns.size() - 1).getName();
if (m_descending) sliceQuery.setRange(lastTime - 1, m_startTime, true, m_singleRowReadSize);
else sliceQuery.setRange(lastTime + 1, m_endTime, false, m_singleRowReadSize);
columns = sliceQuery.execute().get().getColumns();
writeColumns(key, columns);
} while (columns.size() == m_singleRowReadSize);
}
}
private Serializer<?> serializerForComparator(String c) {
int p = c.indexOf('(');
if (p >= 0) {
c = c.substring(0, p);
}
if (LEXICALUUIDTYPE.getTypeName().equals(c) || TIMEUUIDTYPE.getTypeName().equals(c)) {
return UUIDSerializer.get();
}
Serializer<?> s = SERIALIZERS.getInstance(serializerToComparatorMapping.inverse().get(c));
if (s != null) {
return s;
}
return ByteBufferSerializer.get();
}
public void save(Collection<Count> counts) {
Map<String, Count> countHolder = new HashMap<String, Count>();
for (Count count : counts) {
Count c = countHolder.get(count.getCounterName());
if (c != null) {
c.apply(count);
} else {
countHolder.put(count.getCounterName(), count);
}
}
Mutator<ByteBuffer> mutator = HFactory.createMutator(keyspace, ByteBufferSerializer.get());
for (Count count : countHolder.values()) {
mutator.addCounter(
count.getKeyNameBytes(),
count.getTableName(),
new HCounterColumnImpl(
count.getColumnName(), count.getValue(), count.getColumnNameSerializer()));
}
try {
mutator.execute();
} catch (Exception e) {
// errors here happen a lot on shutdown, don't fill the logs with them
String error = e.getClass().getCanonicalName();
if (counterInsertFailures.get(error) == null) {
log.error("CounterStore insert failed, first instance", e);
counterInsertFailures.put(error, 1);
} else {
int count = counterInsertFailures.get(error) + 1;
counterInsertFailures.put(error, count);
if (log.isDebugEnabled()) {
log.debug(error + " caused CounterStore insert failure, count = " + count, e);
} else {
log.error(error + " caused CounterStore insert failure, count = " + count);
}
}
}
}
public CassandraWriteWork(Keyspace keyspace, CassandraWorkStatus callback) {
this.callback = callback;
mutator = HFactory.createMutator(keyspace, ByteBufferSerializer.get());
}
public void setByteBuffer(N columnName, ByteBuffer value, int ttl) {
addInsertion(columnName, value, ByteBufferSerializer.get(), globalTtl);
}
public class AbstractOnRamp implements IOnRamp {
// Configurable properties
protected String darkStarNode;
protected int darkStarPort;
protected String clusterName;
protected String keyspace;
protected String eventName;
// Client interface vars
protected Mutator<ByteBuffer> mutator;
protected Cluster cluster;
protected Keyspace keySpace;
protected StringSerializer se = StringSerializer.get();
protected LongSerializer ls = LongSerializer.get();
protected ByteBufferSerializer bfs = ByteBufferSerializer.get();
protected BytesArraySerializer bas = BytesArraySerializer.get();
protected final ConsistencyLevelPolicy policy = new DefaultConsistencyLevel();
protected static final String timestamp_field = "_onRampSent";
protected void setProperties(BaseConfig info) {
darkStarNode = info.getDarkStarNode();
darkStarPort = info.getDarkStarPort();
clusterName = info.getClusterName();
keyspace = info.getKeyspace();
eventName = info.getEventName();
}
public void setProperties(
String darkStarNode,
int darkStarPort,
String clusterName,
String keyspace,
String eventName) {
this.darkStarNode = darkStarNode;
this.darkStarPort = darkStarPort;
this.clusterName = clusterName;
this.keyspace = keyspace;
this.eventName = eventName;
}
public void init() {
CassandraHostConfigurator hostConfig =
new CassandraHostConfigurator(darkStarNode + ":" + String.valueOf(darkStarPort));
cluster = HFactory.createCluster(clusterName, hostConfig);
keySpace = HFactory.createKeyspace(keyspace, cluster, policy);
mutator = HFactory.createMutator(keySpace, bfs);
}
public void send(EventObject event, String key) throws JSONException {
ByteBuffer rowKey = se.toByteBuffer(key);
event.put(timestamp_field, System.currentTimeMillis());
mutator.addInsertion(rowKey, "system", createColumn(eventName, event.toString(), se, se));
mutator.execute();
}
public void send(EventObject event) throws JSONException {
ByteBuffer rowKey = se.toByteBuffer(event.getString("partition_on"));
event.put(timestamp_field, System.currentTimeMillis());
mutator.addInsertion(
rowKey, keyspace, createColumn(event.getEventName(), event.toString(), se, se));
mutator.execute();
}
}
/**
* Parent class of Composite and DynamicComposite. Acts as a list of objects that get serialized
* into a composite column name. Unless setAutoDeserialize(true) is called, it's going to try to
* match serializers to Cassandra comparator types.
*
* @author edanuff
*/
@SuppressWarnings("rawtypes")
public abstract class AbstractComposite extends AbstractList<Object>
implements Comparable<AbstractComposite> {
public static Logger log = LoggerFactory.getLogger(AbstractComposite.class);
public enum ComponentEquality {
LESS_THAN_EQUAL((byte) -1),
EQUAL((byte) 0),
GREATER_THAN_EQUAL((byte) 1);
private final byte equality;
ComponentEquality(byte equality) {
this.equality = equality;
}
public byte toByte() {
return equality;
}
public static ComponentEquality fromByte(byte equality) {
if (equality > 0) {
return GREATER_THAN_EQUAL;
}
if (equality < 0) {
return LESS_THAN_EQUAL;
}
return EQUAL;
}
}
public static final BiMap<Class<? extends Serializer>, String>
DEFAULT_SERIALIZER_TO_COMPARATOR_MAPPING =
new ImmutableBiMap.Builder<Class<? extends Serializer>, String>()
.put(AsciiSerializer.class, AsciiSerializer.get().getComparatorType().getTypeName())
.put(
BigIntegerSerializer.class,
BigIntegerSerializer.get().getComparatorType().getTypeName())
.put(
ByteBufferSerializer.class,
ByteBufferSerializer.get().getComparatorType().getTypeName())
.put(LongSerializer.class, LongSerializer.get().getComparatorType().getTypeName())
.put(StringSerializer.class, StringSerializer.get().getComparatorType().getTypeName())
.put(FloatSerializer.class, FloatSerializer.get().getComparatorType().getTypeName())
.put(UUIDSerializer.class, UUIDSerializer.get().getComparatorType().getTypeName())
.build();
static final ImmutableClassToInstanceMap<Serializer> SERIALIZERS =
new ImmutableClassToInstanceMap.Builder<Serializer>()
.put(AsciiSerializer.class, AsciiSerializer.get())
.put(BigIntegerSerializer.class, BigIntegerSerializer.get())
.put(ByteBufferSerializer.class, ByteBufferSerializer.get())
.put(FloatSerializer.class, FloatSerializer.get())
.put(LongSerializer.class, LongSerializer.get())
.put(StringSerializer.class, StringSerializer.get())
.put(UUIDSerializer.class, UUIDSerializer.get())
.build();
public static final BiMap<Byte, String> DEFAULT_ALIAS_TO_COMPARATOR_MAPPING =
new ImmutableBiMap.Builder<Byte, String>()
.put((byte) 'a', ASCIITYPE.getTypeName())
.put((byte) 'b', BYTESTYPE.getTypeName())
.put((byte) 'f', FLOATTYPE.getTypeName())
.put((byte) 'i', INTEGERTYPE.getTypeName())
.put((byte) 'x', LEXICALUUIDTYPE.getTypeName())
.put((byte) 'l', LONGTYPE.getTypeName())
.put((byte) 't', TIMEUUIDTYPE.getTypeName())
.put((byte) 's', UTF8TYPE.getTypeName())
.put((byte) 'u', UUIDTYPE.getTypeName())
.build();
BiMap<Class<? extends Serializer>, String> serializerToComparatorMapping =
DEFAULT_SERIALIZER_TO_COMPARATOR_MAPPING;
BiMap<Byte, String> aliasToComparatorMapping = DEFAULT_ALIAS_TO_COMPARATOR_MAPPING;
final boolean dynamic;
List<Serializer<?>> serializersByPosition = null;
List<String> comparatorsByPosition = null;
public class Component<T> {
final Serializer<T> serializer;
final T value;
final ByteBuffer bytes;
final String comparator;
final ComponentEquality equality;
public Component(
T value,
ByteBuffer bytes,
Serializer<T> serializer,
String comparator,
ComponentEquality equality) {
this.serializer = serializer;
this.value = value;
this.bytes = bytes;
this.comparator = comparator;
this.equality = equality;
}
public Serializer<T> getSerializer() {
return serializer;
}
@SuppressWarnings("unchecked")
public <A> A getValue(Serializer<A> s) {
if (s == null) {
s = (Serializer<A>) serializer;
}
if ((value == null) && (bytes != null) && (s != null)) {
ByteBuffer cb = bytes.duplicate();
return s.fromByteBuffer(cb);
}
if (value instanceof ByteBuffer) {
return (A) ((ByteBuffer) value).duplicate();
}
return (A) value;
}
public T getValue() {
return getValue(serializer);
}
@SuppressWarnings("unchecked")
public <A> ByteBuffer getBytes(Serializer<A> s) {
if (bytes == null) {
if (value instanceof ByteBuffer) {
return ((ByteBuffer) value).duplicate();
}
if (value == null) {
return null;
}
if (s == null) {
s = (Serializer<A>) serializer;
}
if (s != null) {
return s.toByteBuffer((A) value).duplicate();
}
}
return bytes.duplicate();
}
public ByteBuffer getBytes() {
return getBytes(serializer);
}
public String getComparator() {
return comparator;
}
public ComponentEquality getEquality() {
return equality;
}
@Override
public String toString() {
return "Component [" + getValue() + "]";
}
}
List<Component<?>> components = new ArrayList<Component<?>>();
ComponentEquality equality = ComponentEquality.EQUAL;
ByteBuffer serialized = null;
public AbstractComposite(boolean dynamic) {
this.dynamic = dynamic;
}
public AbstractComposite(boolean dynamic, Object... o) {
this.dynamic = dynamic;
this.addAll(Arrays.asList(o));
}
public AbstractComposite(boolean dynamic, List<?> l) {
this.dynamic = dynamic;
this.addAll(l);
}
public List<Component<?>> getComponents() {
return components;
}
public void setComponents(List<Component<?>> components) {
serialized = null;
this.components = components;
}
public Map<Class<? extends Serializer>, String> getSerializerToComparatorMapping() {
return serializerToComparatorMapping;
}
public void setSerializerToComparatorMapping(
Map<Class<? extends Serializer>, String> serializerToComparatorMapping) {
serialized = null;
this.serializerToComparatorMapping =
new ImmutableBiMap.Builder<Class<? extends Serializer>, String>()
.putAll(serializerToComparatorMapping)
.build();
}
public Map<Byte, String> getAliasesToComparatorMapping() {
return aliasToComparatorMapping;
}
public void setAliasesToComparatorMapping(Map<Byte, String> aliasesToComparatorMapping) {
serialized = null;
aliasToComparatorMapping =
new ImmutableBiMap.Builder<Byte, String>().putAll(aliasesToComparatorMapping).build();
}
public boolean isDynamic() {
return dynamic;
}
public List<Serializer<?>> getSerializersByPosition() {
return serializersByPosition;
}
public void setSerializersByPosition(List<Serializer<?>> serializersByPosition) {
this.serializersByPosition = serializersByPosition;
}
public void setSerializersByPosition(Serializer<?>... serializers) {
serializersByPosition = Arrays.asList(serializers);
}
public void setSerializerByPosition(int index, Serializer<?> s) {
if (serializersByPosition == null) {
serializersByPosition = new ArrayList<Serializer<?>>();
}
while (serializersByPosition.size() <= index) {
serializersByPosition.add(null);
}
serializersByPosition.set(index, s);
}
public List<String> getComparatorsByPosition() {
return comparatorsByPosition;
}
public void setComparatorsByPosition(List<String> comparatorsByPosition) {
this.comparatorsByPosition = comparatorsByPosition;
}
public void setComparatorsByPosition(String... comparators) {
comparatorsByPosition = Arrays.asList(comparators);
}
public void setComparatorByPosition(int index, String c) {
if (comparatorsByPosition == null) {
comparatorsByPosition = new ArrayList<String>();
}
while (comparatorsByPosition.size() <= index) {
comparatorsByPosition.add(null);
}
comparatorsByPosition.set(index, c);
}
@Override
public int compareTo(AbstractComposite o) {
return serialize().compareTo(o.serialize());
}
private String comparatorForSerializer(Serializer<?> s) {
String comparator = serializerToComparatorMapping.get(s.getClass());
if (comparator != null) {
return comparator;
}
return BYTESTYPE.getTypeName();
}
private Serializer<?> serializerForComparator(String c) {
int p = c.indexOf('(');
if (p >= 0) {
c = c.substring(0, p);
}
if (LEXICALUUIDTYPE.getTypeName().equals(c) || TIMEUUIDTYPE.getTypeName().equals(c)) {
return UUIDSerializer.get();
}
Serializer<?> s = SERIALIZERS.getInstance(serializerToComparatorMapping.inverse().get(c));
if (s != null) {
return s;
}
return ByteBufferSerializer.get();
}
private Serializer<?> serializerForPosition(int i) {
if (serializersByPosition == null) {
return null;
}
if (i >= serializersByPosition.size()) {
return null;
}
return serializersByPosition.get(i);
}
private Serializer<?> getSerializer(int i, String c) {
Serializer<?> s = serializerForPosition(i);
if (s != null) {
return s;
}
return serializerForComparator(c);
}
private String comparatorForPosition(int i) {
if (comparatorsByPosition == null) {
return null;
}
if (i >= comparatorsByPosition.size()) {
return null;
}
return comparatorsByPosition.get(i);
}
private String getComparator(int i, ByteBuffer bb) {
String name = comparatorForPosition(i);
if (name != null) {
return name;
}
if (!dynamic) {
if (bb.hasRemaining()) {
return BYTESTYPE.getTypeName();
} else {
return null;
}
}
if (bb.hasRemaining()) {
try {
int header = getShortLength(bb);
if ((header & 0x8000) == 0) {
name = Charsets.UTF_8.newDecoder().decode(getBytes(bb, header).duplicate()).toString();
} else {
byte a = (byte) (header & 0xFF);
name = aliasToComparatorMapping.get(a);
if (name == null) {
a = (byte) Character.toLowerCase((char) a);
name = aliasToComparatorMapping.get(a);
if (name != null) {
name += "(reversed=true)";
}
}
}
} catch (CharacterCodingException e) {
throw new RuntimeException(e);
}
}
if ((name != null) && (name.length() == 0)) {
name = null;
}
return name;
}
@Override
public void clear() {
serialized = null;
components = new ArrayList<Component<?>>();
}
@Override
public int size() {
return components.size();
}
@SuppressWarnings("unchecked")
public <T> AbstractComposite addComponent(int index, T element, ComponentEquality equality) {
serialized = null;
if (element instanceof Component) {
components.add(index, (Component<?>) element);
return this;
}
Serializer s = serializerForPosition(index);
if (s == null) {
s = SerializerTypeInferer.getSerializer(element);
}
String c = comparatorForPosition(index);
if (c == null) {
c = comparatorForSerializer(s);
}
components.add(index, new Component(element, null, s, c, equality));
setSerializerByPosition(index, s);
return this;
}
public <T> AbstractComposite addComponent(T value, Serializer<T> s) {
addComponent(value, s, comparatorForSerializer(s));
return this;
}
public <T> AbstractComposite addComponent(T value, Serializer<T> s, String comparator) {
addComponent(value, s, comparator, ComponentEquality.EQUAL);
return this;
}
public <T> AbstractComposite addComponent(
T value, Serializer<T> s, String comparator, ComponentEquality equality) {
addComponent(-1, value, s, comparator, equality);
return this;
}
@SuppressWarnings("unchecked")
public <T> AbstractComposite addComponent(
int index, T value, Serializer<T> s, String comparator, ComponentEquality equality) {
serialized = null;
if (value == null) {
throw new NullPointerException("Unable able to add null component");
}
if (index < 0) {
index = components.size();
}
while (components.size() < index) {
components.add(null);
}
components.add(index, new Component(value, null, s, comparator, equality));
return this;
}
private static Object mapIfNumber(Object o) {
if ((o instanceof Byte) || (o instanceof Integer) || (o instanceof Short)) {
return BigInteger.valueOf(((Number) o).longValue());
}
return o;
}
@SuppressWarnings({"unchecked"})
private static Collection<?> flatten(Collection<?> c) {
if (c instanceof AbstractComposite) {
return ((AbstractComposite) c).getComponents();
}
boolean hasCollection = false;
for (Object o : c) {
if (o instanceof Collection) {
hasCollection = true;
break;
}
}
if (!hasCollection) {
return c;
}
List newList = new ArrayList();
for (Object o : c) {
if (o instanceof Collection) {
newList.addAll(flatten((Collection) o));
} else {
newList.add(o);
}
}
return newList;
}
/**
* For education purposes, when addAll is called, it ultimately ends up calling add(int,Object).
* The call stack using JDK7 is the following. 1. addAll 2.
* AbstractCollection<E>.addAll(Collection<Object>) 3. AbstractList<E>.add(E) 4.
* AbstractComposite.add(int,Object)
*
* <p>What happens is AbstractList<E>.add(E) does this add(size(),E). Neither
* java.util.AbstractList or java.util.AbstractCollection provide storage in the base class. It
* expects the subclass to provide the storage.
*/
@Override
public boolean addAll(Collection<? extends Object> c) {
return super.addAll(flatten(c));
}
@Override
public boolean containsAll(Collection<?> c) {
return super.containsAll(flatten(c));
}
@Override
public boolean removeAll(Collection<?> c) {
return super.removeAll(flatten(c));
}
@Override
public boolean retainAll(Collection<?> c) {
return super.retainAll(flatten(c));
}
/**
* Method is similar to addAll(Collection<? extends Object>) in that it ends up calling
* AbstractComposite.add(int,Object).
*/
@Override
public boolean addAll(int i, Collection<? extends Object> c) {
return super.addAll(i, flatten(c));
}
/**
* add(int,Object) is the primary method that adds elements to the list. All other add methods end
* up here.
*/
@Override
public void add(int index, Object element) {
element = mapIfNumber(element);
addComponent(index, element, ComponentEquality.EQUAL);
}
/**
* remove(int) is the primary method that removes elements from the list. All other remove methods
* end up calling AbstractComposite.remove(int).
*/
@Override
public Object remove(int index) {
serialized = null;
Component prev = components.remove(index);
if (prev != null) {
return prev.getValue();
}
return null;
}
public <T> AbstractComposite setComponent(int index, T value, Serializer<T> s) {
setComponent(index, value, s, comparatorForSerializer(s));
return this;
}
public <T> AbstractComposite setComponent(
int index, T value, Serializer<T> s, String comparator) {
setComponent(index, value, s, comparator, ComponentEquality.EQUAL);
return this;
}
@SuppressWarnings("unchecked")
public <T> AbstractComposite setComponent(
int index, T value, Serializer<T> s, String comparator, ComponentEquality equality) {
serialized = null;
while (components.size() <= index) {
components.add(null);
}
components.set(index, new Component(value, null, s, comparator, equality));
return this;
}
@SuppressWarnings("unchecked")
@Override
public Object set(int index, Object element) {
serialized = null;
if (element instanceof Component) {
Component prev = components.set(index, (Component<?>) element);
if (prev != null) {
return prev.getValue();
}
return null;
}
element = mapIfNumber(element);
Serializer s = serializerForPosition(index);
if (s == null) {
s = SerializerTypeInferer.getSerializer(element);
}
String c = comparatorForPosition(index);
if (c == null) {
c = comparatorForSerializer(s);
}
Component prev =
components.set(index, new Component(element, null, s, c, ComponentEquality.EQUAL));
if (prev != null) {
return prev.getValue();
}
return null;
}
@Override
public Object get(int i) {
Component c = components.get(i);
if (c != null) {
return c.getValue();
}
return null;
}
public <T> T get(int i, Serializer<T> s) throws ClassCastException {
T value = null;
Component<?> c = components.get(i);
if (c != null) {
value = c.getValue(s);
}
return value;
}
public Component getComponent(int i) {
if (i >= components.size()) {
return null;
}
Component c = components.get(i);
return c;
}
public Iterator<Component<?>> componentsIterator() {
return components.iterator();
}
@SuppressWarnings("unchecked")
public ByteBuffer serialize() {
if (serialized != null) {
return serialized.duplicate();
}
ByteBufferOutputStream out = new ByteBufferOutputStream();
int i = 0;
for (Component c : components) {
Serializer<?> s = serializerForPosition(i);
ByteBuffer cb = c.getBytes(s);
if (cb == null) {
cb = ByteBuffer.allocate(0);
}
if (dynamic) {
String comparator = comparatorForPosition(i);
if (comparator == null) {
comparator = c.getComparator();
}
if (comparator == null) {
comparator = BYTESTYPE.getTypeName();
}
int p = comparator.indexOf("(reversed=true)");
boolean desc = false;
if (p >= 0) {
comparator = comparator.substring(0, p);
desc = true;
}
if (aliasToComparatorMapping.inverse().containsKey(comparator)) {
byte a = aliasToComparatorMapping.inverse().get(comparator);
if (desc) {
a = (byte) Character.toUpperCase((char) a);
}
out.writeShort((short) (0x8000 | a));
} else {
out.writeShort((short) comparator.length());
out.write(comparator.getBytes(Charsets.UTF_8));
}
// if (comparator.equals(BYTESTYPE.getTypeName()) && (cb.remaining() ==
// 0)) {
// log.warn("Writing zero-length BytesType, probably an error");
// }
}
out.writeShort((short) cb.remaining());
out.write(cb.slice());
if ((i == (components.size() - 1)) && (equality != ComponentEquality.EQUAL)) {
out.write(equality.toByte());
} else {
out.write(c.getEquality().toByte());
}
i++;
}
serialized = out.getByteBuffer();
return serialized.duplicate();
}
@SuppressWarnings("unchecked")
public void deserialize(ByteBuffer b) {
serialized = b.duplicate();
components = new ArrayList<Component<?>>();
String comparator = null;
int i = 0;
while ((comparator = getComparator(i, b)) != null) {
ByteBuffer data = getWithShortLength(b);
if (data != null) {
Serializer<?> s = getSerializer(i, comparator);
ComponentEquality equality = ComponentEquality.fromByte(b.get());
components.add(new Component(null, data.slice(), s, comparator, equality));
} else {
throw new RuntimeException("Missing component data in composite type");
}
i++;
}
}
protected static int getShortLength(ByteBuffer bb) {
int length = (bb.get() & 0xFF) << 8;
return length | (bb.get() & 0xFF);
}
protected static ByteBuffer getBytes(ByteBuffer bb, int length) {
ByteBuffer copy = bb.duplicate();
copy.limit(copy.position() + length);
bb.position(bb.position() + length);
return copy;
}
protected static ByteBuffer getWithShortLength(ByteBuffer bb) {
int length = getShortLength(bb);
return getBytes(bb, length);
}
public ComponentEquality getEquality() {
return equality;
}
public void setEquality(ComponentEquality equality) {
serialized = null;
this.equality = equality;
}
}
/**
* Class <code>CassandraDataAccessHelper</code> Encapsulate the Cassandra DataAccessLogic used in
* CassandraMessageStore
*/
public class CassandraDataAccessHelper {
private static final String USERNAME_KEY = "username";
private static final String PASSWORD_KEY = "password";
/** Serializes used for Cassandra data operations */
private static StringSerializer stringSerializer = StringSerializer.get();
private static LongSerializer longSerializer = LongSerializer.get();
private static BytesArraySerializer bytesArraySerializer = BytesArraySerializer.get();
private static IntegerSerializer integerSerializer = IntegerSerializer.get();
private static ByteBufferSerializer byteBufferSerializer = ByteBufferSerializer.get();
/**
* Create a Cassandra Cluster instance given the connection details
*
* @param userName userName to connect to the cassandra
* @param password password to connect to cassandra
* @param clusterName Cluster name
* @param connectionString cassandra connection string
* @return Cluster instance
* @throws CassandraDataAccessException In case of and error in accessing database or data error
*/
public static Cluster createCluster(
String userName, String password, String clusterName, String connectionString)
throws CassandraDataAccessException {
if (userName == null || password == null) {
throw new CassandraDataAccessException(
"Can't create cluster with empty userName or Password");
}
if (clusterName == null) {
throw new CassandraDataAccessException("Can't create cluster with empty cluster name");
}
if (connectionString == null) {
throw new CassandraDataAccessException("Can't create cluster with empty connection string");
}
Map<String, String> credentials = new HashMap<String, String>();
credentials.put(USERNAME_KEY, userName);
credentials.put(PASSWORD_KEY, password);
CassandraHostConfigurator hostConfigurator = new CassandraHostConfigurator(connectionString);
hostConfigurator.setMaxActive(2000);
Cluster cluster = HFactory.getCluster(clusterName);
if (cluster == null) {
cluster = HFactory.createCluster(clusterName, hostConfigurator, credentials);
}
return cluster;
}
/**
* Create a Column family in a Given Cluster instance
*
* @param name ColumnFamily Name
* @param keySpace KeySpace name
* @param cluster Cluster instance
* @param comparatorType Comparator
* @throws CassandraDataAccessException In case of an Error accessing database or data error
*/
public static void createColumnFamily(
String name, String keySpace, Cluster cluster, String comparatorType)
throws CassandraDataAccessException {
KeyspaceDefinition ksDef = cluster.describeKeyspace(keySpace);
if (ksDef == null) {
throw new CassandraDataAccessException(
"Can't create Column family, keyspace " + keySpace + " does not exist");
}
ColumnFamilyDefinition cfDef =
new ThriftCfDef(keySpace, /*"Queue"*/ name, ComparatorType.getByClassName(comparatorType));
List<ColumnFamilyDefinition> cfDefsList = ksDef.getCfDefs();
HashSet<String> cfNames = new HashSet<String>();
for (ColumnFamilyDefinition columnFamilyDefinition : cfDefsList) {
cfNames.add(columnFamilyDefinition.getName());
}
if (!cfNames.contains(name)) {
cluster.addColumnFamily(cfDef, true);
}
}
/**
* Create a Column family for cassandra counters in a given Cluster intance
*
* @param name ColumnFamily Name
* @param keySpace KeySpace name
* @param cluster Cluster instance
* @throws CassandraDataAccessException In case of an Error accessing database or data error
*/
public static void createCounterColumnFamily(String name, String keySpace, Cluster cluster)
throws CassandraDataAccessException {
KeyspaceDefinition ksDef = cluster.describeKeyspace(keySpace);
if (ksDef == null) {
throw new CassandraDataAccessException(
"Can't create Column family, keyspace " + keySpace + " does not exist");
}
ColumnFamilyDefinition cfDef =
HFactory.createColumnFamilyDefinition(keySpace, name, ComparatorType.COUNTERTYPE);
cfDef.setComparatorType(ComparatorType.UTF8TYPE);
cfDef.setDefaultValidationClass(ComparatorType.COUNTERTYPE.getClassName());
cfDef.setColumnType(ColumnType.STANDARD);
List<ColumnFamilyDefinition> cfDefsList = ksDef.getCfDefs();
HashSet<String> cfNames = new HashSet<String>();
for (ColumnFamilyDefinition columnFamilyDefinition : cfDefsList) {
cfNames.add(columnFamilyDefinition.getName());
}
if (!cfNames.contains(name)) {
cluster.addColumnFamily(cfDef, true);
}
}
/**
* Insert a raw-column for counting a property (row is property, column is item)
*
* @param cfName column family name
* @param counterRowName name of row
* @param queueColumn name of column
* @param keyspace key space name
* @throws CassandraDataAccessException
*/
public static void insertCounterColumn(
String cfName, String counterRowName, String queueColumn, Keyspace keyspace)
throws CassandraDataAccessException {
try {
Mutator<String> mutator = HFactory.createMutator(keyspace, StringSerializer.get());
// inserting counter column
mutator.insertCounter(
counterRowName,
cfName,
HFactory.createCounterColumn(queueColumn, 0L, StringSerializer.get()));
mutator.execute();
CounterQuery<String, String> counter =
new ThriftCounterColumnQuery<String, String>(
keyspace, stringSerializer, stringSerializer);
counter.setColumnFamily(cfName).setKey(counterRowName).setName(queueColumn);
} catch (Exception e) {
throw new CassandraDataAccessException("Error while inserting data to:" + cfName, e);
}
}
/**
* remove allocated raw-column space for counter
*
* @param cfName column family name
* @param counterRowName name of row
* @param queueColumn name of column
* @param keyspace key space name
* @throws CassandraDataAccessException
*/
public static void removeCounterColumn(
String cfName, String counterRowName, String queueColumn, Keyspace keyspace)
throws CassandraDataAccessException {
try {
Mutator<String> mutator = HFactory.createMutator(keyspace, StringSerializer.get());
mutator.deleteCounter(counterRowName, cfName, queueColumn, stringSerializer);
mutator.execute();
CounterQuery<String, String> counter =
new ThriftCounterColumnQuery<String, String>(
keyspace, stringSerializer, stringSerializer);
counter.setColumnFamily(cfName).setKey(counterRowName).setName(queueColumn);
} catch (Exception e) {
throw new CassandraDataAccessException("Error while accessing:" + cfName, e);
}
}
/**
* Increment counter by given value
*
* @param rawID raw name
* @param columnFamily column family name
* @param columnName name of column
* @param keyspace keyspace
* @param incrementBy value to increase by
* @throws CassandraDataAccessException
*/
public static void incrementCounter(
String columnName, String columnFamily, String rawID, Keyspace keyspace, long incrementBy)
throws CassandraDataAccessException {
try {
Mutator<String> mutator = HFactory.createMutator(keyspace, StringSerializer.get());
mutator.incrementCounter(rawID, columnFamily, columnName, incrementBy);
mutator.execute();
} catch (Exception e) {
throw new CassandraDataAccessException("Error while accessing:" + columnFamily, e);
}
}
/**
* Decrement counter by 1
*
* @param rawID raw name
* @param columnFamily column family name
* @param columnName name of column
* @param keyspace keyspace
* @throws CassandraDataAccessException
*/
public static void decrementCounter(
String columnName, String columnFamily, String rawID, Keyspace keyspace, long decrementBy)
throws CassandraDataAccessException {
try {
Mutator<String> mutator = HFactory.createMutator(keyspace, StringSerializer.get());
mutator.decrementCounter(rawID, columnFamily, columnName, decrementBy);
mutator.execute();
} catch (Exception e) {
throw new CassandraDataAccessException("Error while accessing:" + columnFamily, e);
}
}
/**
* @param keyspace name of key space
* @param columnFamily column family name
* @param key key value
* @param cloumnName column name
* @return long count value
* @throws CassandraDataAccessException
*/
public static long getCountValue(
Keyspace keyspace, String columnFamily, String cloumnName, String key)
throws CassandraDataAccessException {
try {
CounterQuery<String, String> query =
HFactory.createCounterColumnQuery(keyspace, stringSerializer, stringSerializer);
query.setColumnFamily(columnFamily).setKey(key).setName(cloumnName);
HCounterColumn<String> counter = query.execute().get();
return counter.getValue();
} catch (Exception e) {
throw new CassandraDataAccessException("Error while accessing:" + columnFamily, e);
}
}
public static Keyspace createKeySpace(Cluster cluster, String keySpace) {
Keyspace keyspace;
// Define the keySpace
KeyspaceDefinition definition = new ThriftKsDef(keySpace);
KeyspaceDefinition def = cluster.describeKeyspace(keySpace);
if (def == null) {
// Adding keySpace to the cluster
cluster.addKeyspace(definition, true);
}
keyspace = HFactory.createKeyspace(keySpace, cluster);
CassandraConsistencyLevelPolicy policy = new CassandraConsistencyLevelPolicy();
keyspace.setConsistencyLevelPolicy(policy);
return keyspace;
}
/**
* Get List of Strings in a Given ROW in a Cassandra Column Family Here we assume that the columns
* in a given row have string data and key and value in the given column in that row have same
* values.
*
* @param columnFamilyName Name of the column Family
* @param rowName Row name
* @param keyspace keySpace
* @return List of string in that given row.
* @throws CassandraDataAccessException In case of database access error or data error
*/
public static List<String> getRowList(String columnFamilyName, String rowName, Keyspace keyspace)
throws CassandraDataAccessException {
ArrayList<String> rowList = new ArrayList<String>();
if (keyspace == null) {
throw new CassandraDataAccessException("Can't access Data , no keyspace provided ");
}
if (columnFamilyName == null || rowName == null) {
throw new CassandraDataAccessException(
"Can't access data with columnFamily =" + columnFamilyName + " and rowName=" + rowName);
}
try {
SliceQuery<String, String, String> sliceQuery =
HFactory.createSliceQuery(keyspace, stringSerializer, stringSerializer, stringSerializer);
sliceQuery.setKey(rowName);
sliceQuery.setColumnFamily(columnFamilyName);
sliceQuery.setRange("", "", false, 10000);
QueryResult<ColumnSlice<String, String>> result = sliceQuery.execute();
ColumnSlice<String, String> columnSlice = result.get();
for (HColumn<String, String> column : columnSlice.getColumns()) {
rowList.add(column.getName());
}
} catch (Exception e) {
throw new CassandraDataAccessException(
"Error while accessing data from :" + columnFamilyName, e);
}
return rowList;
}
public static List<String> getDestinationQueueNamesFromCounterColumns(
String columnFamilyName, String rowName, Keyspace keyspace)
throws CassandraDataAccessException {
ArrayList<String> rowList = new ArrayList<String>();
if (keyspace == null) {
throw new CassandraDataAccessException("Can't access Data , no keyspace provided ");
}
if (columnFamilyName == null || rowName == null) {
throw new CassandraDataAccessException(
"Can't access data with columnFamily =" + columnFamilyName + " and rowName=" + rowName);
}
try {
SliceCounterQuery<String, String> sliceQuery =
HFactory.createCounterSliceQuery(keyspace, stringSerializer, stringSerializer);
sliceQuery.setKey(rowName);
sliceQuery.setColumnFamily(columnFamilyName);
sliceQuery.setRange("", "", false, Integer.MAX_VALUE);
QueryResult<CounterSlice<String>> result = sliceQuery.execute();
CounterSlice<String> columnSlice = result.get();
for (HCounterColumn<String> column : columnSlice.getColumns()) {
rowList.add(column.getName());
}
} catch (Exception e) {
throw new CassandraDataAccessException(
"Error while accessing data from :" + columnFamilyName, e);
}
return rowList;
}
/**
* Get the value of a given column in a Given ROW in a Cassandra Column Family Here we assume that
* the columns in a given row have string data and key and value in the given column in that row
* have same values.
*
* @param columnFamilyName Name of the column Family
* @param rowName Row name
* @param keyspace keySpace
* @param columnName Name of the column
* @return vlaue of a given column in that given row.
* @throws CassandraDataAccessException In case of database access error or data error
*/
public static String getColumnValue(
String columnFamilyName, String rowName, Keyspace keyspace, String columnName)
throws CassandraDataAccessException {
ArrayList<String> rowList = new ArrayList<String>();
String value = null;
if (keyspace == null) {
throw new CassandraDataAccessException("Can't access Data , no keyspace provided ");
}
if (columnFamilyName == null || rowName == null) {
throw new CassandraDataAccessException(
"Can't access data with columnFamily =" + columnFamilyName + " and rowName=" + rowName);
}
try {
SliceQuery<String, String, String> sliceQuery =
HFactory.createSliceQuery(keyspace, stringSerializer, stringSerializer, stringSerializer);
sliceQuery.setKey(rowName);
sliceQuery.setColumnFamily(columnFamilyName);
sliceQuery.setRange("", "", false, 10000);
QueryResult<ColumnSlice<String, String>> result = sliceQuery.execute();
ColumnSlice<String, String> columnSlice = result.get();
for (HColumn<String, String> column : columnSlice.getColumns()) {
if (column.getName().equalsIgnoreCase(columnName)) {
value = column.getValue();
break;
}
}
} catch (Exception e) {
throw new CassandraDataAccessException(
"Error while accessing data from :" + columnFamilyName, e);
}
return value;
}
/**
* Get set of messages in a column family
*
* @param queueName QueueName
* @param columnFamilyName ColumnFamilyName
* @param keyspace Cassandra KeySpace
* @param lastProcessedId Last processed Message id to use as a off set
* @param count max message count limit
* @return ColumnSlice which contain the messages
* @throws CassandraDataAccessException
*/
public static ColumnSlice<Long, byte[]> getMessagesFromQueue(
String queueName, String columnFamilyName, Keyspace keyspace, long lastProcessedId, int count)
throws CassandraDataAccessException {
if (keyspace == null) {
throw new CassandraDataAccessException("Can't access Data , no keyspace provided ");
}
if (columnFamilyName == null || queueName == null) {
throw new CassandraDataAccessException(
"Can't access data with columnFamily = "
+ columnFamilyName
+ " and queueName="
+ queueName);
}
try {
SliceQuery<String, Long, byte[]> sliceQuery =
HFactory.createSliceQuery(
keyspace, stringSerializer, longSerializer, bytesArraySerializer);
sliceQuery.setKey(queueName);
sliceQuery.setRange(lastProcessedId + 1, Long.MAX_VALUE, false, count);
sliceQuery.setColumnFamily(columnFamilyName);
QueryResult<ColumnSlice<Long, byte[]>> result = sliceQuery.execute();
ColumnSlice<Long, byte[]> columnSlice = result.get();
return columnSlice;
} catch (Exception e) {
throw new CassandraDataAccessException(
"Error while getting data from " + columnFamilyName, e);
}
}
/**
* Get set of messages in a column family
*
* @param queueName QueueName
* @param columnFamilyName ColumnFamilyName
* @param keyspace Cassandra KeySpace
* @param count max message count limit
* @return ColumnSlice which contain the messages
* @throws CassandraDataAccessException
*/
public static ColumnSlice<Long, byte[]> getMessagesFromQueue(
String queueName, String columnFamilyName, Keyspace keyspace, int count)
throws CassandraDataAccessException {
if (keyspace == null) {
throw new CassandraDataAccessException("Can't access Data , no keyspace provided ");
}
if (columnFamilyName == null || queueName == null) {
throw new CassandraDataAccessException(
"Can't access data with columnFamily = "
+ columnFamilyName
+ " and queueName="
+ queueName);
}
try {
SliceQuery<String, Long, byte[]> sliceQuery =
HFactory.createSliceQuery(
keyspace, stringSerializer, longSerializer, bytesArraySerializer);
sliceQuery.setKey(queueName);
sliceQuery.setRange((long) 0, Long.MAX_VALUE, false, count);
sliceQuery.setColumnFamily(columnFamilyName);
QueryResult<ColumnSlice<Long, byte[]>> result = sliceQuery.execute();
ColumnSlice<Long, byte[]> columnSlice = result.get();
return columnSlice;
} catch (Exception e) {
throw new CassandraDataAccessException(
"Error while getting data from " + columnFamilyName, e);
}
}
/**
* Get Number of <String,String> type columns in a given row in a cassandra column family
*
* @param rowName row Name we are querying for
* @param columnFamilyName columnFamilName
* @param keyspace
* @param count
* @return
*/
public static ColumnSlice<String, String> getStringTypeColumnsInARow(
String rowName, String columnFamilyName, Keyspace keyspace, int count)
throws CassandraDataAccessException {
if (keyspace == null) {
throw new CassandraDataAccessException("Can't access Data , no keyspace provided ");
}
if (columnFamilyName == null || rowName == null) {
throw new CassandraDataAccessException(
"Can't access data with columnFamily = " + columnFamilyName + " and rowName=" + rowName);
}
try {
SliceQuery sliceQuery =
HFactory.createSliceQuery(keyspace, stringSerializer, stringSerializer, stringSerializer);
sliceQuery.setKey(rowName);
sliceQuery.setColumnFamily(columnFamilyName);
sliceQuery.setRange("", "", false, count);
QueryResult<ColumnSlice<String, String>> result = sliceQuery.execute();
ColumnSlice<String, String> columnSlice = result.get();
return columnSlice;
} catch (Exception e) {
throw new CassandraDataAccessException(
"Error while getting data from : " + columnFamilyName, e);
}
}
/**
* Get a HColumn<Long, byte[]> with a given key in a given row in a given column Family
*
* @param rowName name of the row
* @param columnFamily column Family name
* @param key long type key of the column we are looking for
* @param keyspace cassandra keySpace instance
* @return query result as a cassandra column
* @throws CassandraDataAccessException in case of an Error when accessing data
*/
public static HColumn<Long, byte[]> getLongByteArrayColumnInARow(
String rowName, String columnFamily, long key, Keyspace keyspace)
throws CassandraDataAccessException {
if (keyspace == null) {
throw new CassandraDataAccessException("Can't access Data , no keyspace provided ");
}
if (columnFamily == null || rowName == null) {
throw new CassandraDataAccessException(
"Can't access data with columnFamily = " + columnFamily + " and rowName=" + rowName);
}
try {
ColumnQuery columnQuery =
HFactory.createColumnQuery(
keyspace, stringSerializer, longSerializer, bytesArraySerializer);
columnQuery.setColumnFamily(columnFamily);
columnQuery.setKey(rowName);
columnQuery.setName(key);
QueryResult<HColumn<Long, byte[]>> result = columnQuery.execute();
HColumn<Long, byte[]> column = result.get();
return column;
} catch (Exception e) {
throw new CassandraDataAccessException(
"Error while executing quary for HColumn<Long, byte[]> with key ="
+ key
+ " in column Family = "
+ columnFamily,
e);
}
}
/**
* Add Message to a Given Queue in Cassandra
*
* @param columnFamily ColumnFamily name
* @param queue queue name
* @param messageId Message id
* @param message message in bytes
* @param keyspace Cassandra KeySpace
* @throws CassandraDataAccessException In case of database access error
*/
public static void addMessageToQueue(
String columnFamily, String queue, String messageId, byte[] message, Keyspace keyspace)
throws CassandraDataAccessException {
if (keyspace == null) {
throw new CassandraDataAccessException("Can't add Data , no mutator provided ");
}
if (columnFamily == null || queue == null || messageId == null || message == null) {
throw new CassandraDataAccessException(
"Can't add data with columnFamily = "
+ columnFamily
+ " and queue="
+ queue
+ " message id = "
+ messageId
+ " message = "
+ message);
}
try {
Mutator<String> mutator = HFactory.createMutator(keyspace, stringSerializer);
mutator.addInsertion(
queue.trim(),
columnFamily,
HFactory.createColumn(messageId, message, stringSerializer, bytesArraySerializer));
mutator.execute();
} catch (Exception e) {
throw new CassandraDataAccessException("Error while adding message to Queue", e);
}
}
/**
* Add Message to a Given Queue in Cassandra
*
* @param columnFamily ColumnFamily name
* @param queue queue name
* @param messageId Message id
* @param message message in bytes
* @param keyspace Cassandra KeySpace
* @throws CassandraDataAccessException In case of database access error
*/
public static void addMessageToQueue(
String columnFamily, String queue, long messageId, byte[] message, Keyspace keyspace)
throws CassandraDataAccessException {
if (keyspace == null) {
throw new CassandraDataAccessException("Can't add Data , no mutator provided ");
}
if (columnFamily == null || queue == null || message == null) {
throw new CassandraDataAccessException(
"Can't add data with columnFamily = "
+ columnFamily
+ " and queue="
+ queue
+ " message id = "
+ messageId
+ " message = "
+ message);
}
try {
Mutator<String> mutator = HFactory.createMutator(keyspace, stringSerializer);
mutator.addInsertion(
queue.trim(),
columnFamily,
HFactory.createColumn(messageId, message, longSerializer, bytesArraySerializer));
mutator.execute();
} catch (Exception e) {
throw new CassandraDataAccessException("Error while adding message to Queue", e);
}
}
/**
* Add Message to a Given Queue in Cassandra
*
* @param columnFamily ColumnFamily name
* @param queue queue name
* @param messageId Message id
* @param message message in bytes
* @param mutator Cassandra KeySpace
* @throws CassandraDataAccessException In case of database access error
*/
public static void addMessageToQueue(
String columnFamily,
String queue,
long messageId,
byte[] message,
Mutator<String> mutator,
boolean execute)
throws CassandraDataAccessException {
if (mutator == null) {
throw new CassandraDataAccessException("Can't add Data , no mutator provided ");
}
if (columnFamily == null || queue == null || message == null) {
throw new CassandraDataAccessException(
"Can't add data with columnFamily = "
+ columnFamily
+ " and queue="
+ queue
+ " message id = "
+ messageId
+ " message = "
+ message);
}
try {
mutator.addInsertion(
queue.trim(),
columnFamily,
HFactory.createColumn(messageId, message, longSerializer, bytesArraySerializer));
if (execute) {
mutator.execute();
}
} catch (Exception e) {
throw new CassandraDataAccessException("Error while adding message to Queue", e);
}
}
/**
* Add a new Column <int,byte[]> to a given row in a given column family
*
* @param columnFamily column Family name
* @param row row name
* @param key key of the column
* @param value value of the column
* @param keyspace cassandra KeySpace
* @throws CassandraDataAccessException
*/
public static void addIntegerByteArrayContentToRaw(
String columnFamily, String row, int key, byte[] value, Keyspace keyspace)
throws CassandraDataAccessException {
if (keyspace == null) {
throw new CassandraDataAccessException("Can't add Data , no keySpace provided ");
}
if (columnFamily == null || row == null || value == null) {
throw new CassandraDataAccessException(
"Can't add data with columnFamily = "
+ columnFamily
+ " and row="
+ row
+ " key = "
+ key
+ " value = "
+ value);
}
try {
Mutator<String> messageContentMutator = HFactory.createMutator(keyspace, stringSerializer);
messageContentMutator.addInsertion(
row,
columnFamily,
HFactory.createColumn(key, value, integerSerializer, bytesArraySerializer));
messageContentMutator.execute();
} catch (Exception e) {
throw new CassandraDataAccessException(
"Error while adding new Column <int,byte[]> to cassandra store", e);
}
}
public static void addIntegerByteArrayContentToRaw(
String columnFamily,
String row,
int key,
byte[] value,
Mutator<String> mutator,
boolean execute)
throws CassandraDataAccessException {
if (mutator == null) {
throw new CassandraDataAccessException("Can't add Data , no Mutator provided ");
}
if (columnFamily == null || row == null || value == null) {
throw new CassandraDataAccessException(
"Can't add data with columnFamily = "
+ columnFamily
+ " and row="
+ row
+ " key = "
+ key
+ " value = "
+ value);
}
mutator.addInsertion(
row,
columnFamily,
HFactory.createColumn(key, value, integerSerializer, bytesArraySerializer));
if (execute) {
mutator.execute();
}
}
/**
* Add new Column<long,long> to a given row in a given cassandra column family
*
* @param columnFamily column family name
* @param row row name
* @param key long key value of the column
* @param value long value of the column
* @param keyspace Cassandra KeySpace
* @throws CassandraDataAccessException
*/
public static void addLongContentToRow(
String columnFamily, String row, long key, long value, Keyspace keyspace)
throws CassandraDataAccessException {
if (keyspace == null) {
throw new CassandraDataAccessException("Can't add Data , no keySpace provided ");
}
if (columnFamily == null || row == null) {
throw new CassandraDataAccessException(
"Can't add data with columnFamily = "
+ columnFamily
+ " and rowName="
+ row
+ " key = "
+ key);
}
try {
Mutator<String> mutator = HFactory.createMutator(keyspace, stringSerializer);
mutator.insert(
row, columnFamily, HFactory.createColumn(key, value, longSerializer, longSerializer));
mutator.execute();
} catch (Exception e) {
throw new CassandraDataAccessException("Error while adding long content to a row", e);
}
}
/**
* Add a new Column <long,byte[]> to a given row in a given column family
*
* @param columnFamily column family name
* @param row row name
* @param key long key value
* @param value value as a byte array
* @param keyspace CassandraKeySpace
* @throws CassandraDataAccessException
*/
public static void addLongByteArrayColumnToRow(
String columnFamily, String row, long key, byte[] value, Keyspace keyspace)
throws CassandraDataAccessException {
if (keyspace == null) {
throw new CassandraDataAccessException("Can't add Data , no keySpace provided ");
}
if (columnFamily == null || row == null || value == null) {
throw new CassandraDataAccessException(
"Can't add data with columnFamily = "
+ columnFamily
+ " and row="
+ row
+ " key = "
+ key
+ " value = "
+ value);
}
try {
Mutator<String> messageContentMutator = HFactory.createMutator(keyspace, stringSerializer);
messageContentMutator.addInsertion(
row,
columnFamily,
HFactory.createColumn(key, value, longSerializer, bytesArraySerializer));
messageContentMutator.execute();
} catch (Exception e) {
throw new CassandraDataAccessException(
"Error while adding new Column <int,byte[]> to cassandra store", e);
}
}
/**
* Add a Mapping to a Given Row in cassandra column family. Mappings are used as search indexes
*
* @param columnFamily columnFamilyName
* @param row row name
* @param cKey key name for the adding column
* @param cValue value for the adding column
* @param keyspace Cassandra KeySpace
* @throws CassandraDataAccessException In case of database access error or data error
*/
public static void addMappingToRaw(
String columnFamily, String row, String cKey, String cValue, Keyspace keyspace)
throws CassandraDataAccessException {
if (keyspace == null) {
throw new CassandraDataAccessException("Can't add Data , no KeySpace provided ");
}
if (columnFamily == null || row == null || cKey == null) {
throw new CassandraDataAccessException(
"Can't add data with columnFamily = "
+ columnFamily
+ " and rowName="
+ row
+ " key = "
+ cKey);
}
try {
Mutator<String> mutator = HFactory.createMutator(keyspace, stringSerializer);
mutator.addInsertion(
row,
columnFamily,
HFactory.createColumn(cKey, cValue.trim(), stringSerializer, stringSerializer));
mutator.execute();
} catch (Exception e) {
throw new CassandraDataAccessException("Error while adding a Mapping to row ", e);
}
}
public static void addMappingToRow(
String columnFamily,
String row,
String cKey,
String cValue,
Mutator<String> mutator,
boolean execute)
throws CassandraDataAccessException {
if (mutator == null) {
throw new CassandraDataAccessException("Can't add Data , no mutator provided ");
}
mutator.addInsertion(
row,
columnFamily,
HFactory.createColumn(cKey, cValue.trim(), stringSerializer, stringSerializer));
if (execute) {
mutator.execute();
}
}
/**
* Add an Mapping Entry to a raw in a given column family
*
* @param columnFamily ColumnFamily name
* @param row row name
* @param cKey column key
* @param cValue column value
* @param mutator mutator
* @param execute should we execute the insertion. if false it will just and the insertion to the
* mutator
* @throws CassandraDataAccessException In case of database access error or data error
*/
public static void addMappingToRaw(
String columnFamily,
String row,
String cKey,
String cValue,
Mutator<String> mutator,
boolean execute)
throws CassandraDataAccessException {
if (mutator == null) {
throw new CassandraDataAccessException("Can't add Data , no mutator provided ");
}
if (columnFamily == null || row == null || cKey == null) {
throw new CassandraDataAccessException(
"Can't add data with columnFamily = "
+ columnFamily
+ " and rowName="
+ row
+ " key = "
+ cKey);
}
try {
mutator.addInsertion(
row,
columnFamily,
HFactory.createColumn(cKey, cValue.trim(), stringSerializer, stringSerializer));
if (execute) {
mutator.execute();
}
} catch (Exception e) {
throw new CassandraDataAccessException("Error while adding a Mapping to row ", e);
}
}
/**
* Delete a given string column in a raw in a column family
*
* @param columnFamily column family name
* @param row row name
* @param key key name
* @param keyspace cassandra keySpace
* @throws CassandraDataAccessException In case of database access error or data error
*/
public static void deleteStringColumnFromRaw(
String columnFamily, String row, String key, Keyspace keyspace)
throws CassandraDataAccessException {
if (keyspace == null) {
throw new CassandraDataAccessException("Can't delete Data , no keyspace provided ");
}
if (columnFamily == null || row == null || key == null) {
throw new CassandraDataAccessException(
"Can't delete data in columnFamily = "
+ columnFamily
+ " and rowName="
+ row
+ " key = "
+ key);
}
try {
Mutator<String> mutator = HFactory.createMutator(keyspace, stringSerializer);
mutator.addDeletion(row, columnFamily, key, stringSerializer);
mutator.execute();
} catch (Exception e) {
throw new CassandraDataAccessException(
"Error while deleting " + key + " from " + columnFamily);
}
}
/**
* Delete a given string column in a raw in a column family
*
* @param columnFamily column family name
* @param row row name
* @param key key name
* @param keyspace cassandra keySpace
* @throws CassandraDataAccessException In case of database access error or data error
*/
public static void deleteLongColumnFromRaw(
String columnFamily, String row, long key, Keyspace keyspace)
throws CassandraDataAccessException {
if (keyspace == null) {
throw new CassandraDataAccessException("Can't delete Data , no keyspace provided ");
}
if (columnFamily == null || row == null) {
throw new CassandraDataAccessException(
"Can't delete data in columnFamily = "
+ columnFamily
+ " and rowName="
+ row
+ " key = "
+ key);
}
try {
Mutator<String> mutator = HFactory.createMutator(keyspace, stringSerializer);
mutator.addDeletion(row, columnFamily, key, longSerializer);
mutator.execute();
} catch (Exception e) {
throw new CassandraDataAccessException(
"Error while deleting " + key + " from " + columnFamily);
}
}
public static void deleteLongColumnFromRaw(
String columnFamily, String row, long key, Mutator<String> mutator, boolean execute)
throws CassandraDataAccessException {
if (mutator == null) {
throw new CassandraDataAccessException("Can't delete Data , no mutator provided ");
}
if (columnFamily == null || row == null) {
throw new CassandraDataAccessException(
"Can't delete data in columnFamily = "
+ columnFamily
+ " and rowName="
+ row
+ " key = "
+ key);
}
try {
mutator.addDeletion(row, columnFamily, key, longSerializer);
if (execute) {
mutator.execute();
}
} catch (Exception e) {
throw new CassandraDataAccessException(
"Error while deleting " + key + " from " + columnFamily);
}
}
/**
* Delete a given string column in a raw in a column family
*
* @param columnFamily ColumnFamily Name
* @param row row name
* @param key string key to of the column
* @param mutator Mutator reference
* @param execute execute the deletion ?
* @throws CassandraDataAccessException
*/
public static void deleteStringColumnFromRaw(
String columnFamily, String row, String key, Mutator<String> mutator, boolean execute)
throws CassandraDataAccessException {
if (mutator == null) {
throw new CassandraDataAccessException("Can't delete Data , no mutator provided ");
}
if (columnFamily == null || row == null || key == null) {
throw new CassandraDataAccessException(
"Can't delete data in columnFamily = "
+ columnFamily
+ " and rowName="
+ row
+ " key = "
+ key);
}
try {
mutator.addDeletion(row, columnFamily, key, stringSerializer);
if (execute) {
mutator.execute();
}
} catch (Exception e) {
throw new CassandraDataAccessException(
"Error while deleting " + key + " from " + columnFamily);
}
}
public static void deleteIntegerColumnFromRow(
String columnFamily, String row, int key, Mutator<String> mutator, boolean execute)
throws CassandraDataAccessException {
if (mutator == null) {
throw new CassandraDataAccessException("Can't delete Data , no mutator provided ");
}
if (columnFamily == null || row == null) {
throw new CassandraDataAccessException(
"Can't delete data in columnFamily = "
+ columnFamily
+ " and rowName="
+ row
+ " key = "
+ key);
}
try {
mutator.addDeletion(row, columnFamily, key, integerSerializer);
if (execute) {
mutator.execute();
}
} catch (Exception e) {
throw new CassandraDataAccessException(
"Error while deleting " + key + " from " + columnFamily);
}
}
public static void deleteIntegerColumnFromRow(
String columnFamily, String row, Integer key, Keyspace keyspace)
throws CassandraDataAccessException {
if (keyspace == null) {
throw new CassandraDataAccessException("Can't delete Data , no keyspace provided ");
}
if (columnFamily == null || row == null) {
throw new CassandraDataAccessException(
"Can't delete data in columnFamily = "
+ columnFamily
+ " and rowName="
+ row
+ " key = "
+ key);
}
try {
Mutator<String> mutator = HFactory.createMutator(keyspace, stringSerializer);
mutator.addDeletion(row, columnFamily, key, integerSerializer);
mutator.execute();
} catch (Exception e) {
throw new CassandraDataAccessException("Error while deleting data", e);
}
}
public static void deleteIntegerColumnsFromRow(
String columnFamily, List<String> rows, Keyspace keyspace)
throws CassandraDataAccessException {
if (keyspace == null) {
throw new CassandraDataAccessException("Can't delete Data , no keyspace provided ");
}
if (columnFamily == null || rows == null) {
throw new CassandraDataAccessException(
"Can't delete data in columnFamily = " + columnFamily + " and rowName=" + rows);
}
try {
Mutator<String> mutator = HFactory.createMutator(keyspace, stringSerializer);
for (String row : rows) {
mutator.addDeletion(row, columnFamily, null, integerSerializer);
}
mutator.execute();
} catch (Exception e) {
throw new CassandraDataAccessException("Error while deleting data", e);
}
}
}
public void setByteBuffer(N subColumnName, ByteBuffer value) {
subColumns.add(
columnFactory.createColumn(
subColumnName, value, clock, template.getSubSerializer(), ByteBufferSerializer.get()));
}
