/**
* Returns the selection array or vector.
*
* <p>The selSizes array contains sizes of the selectors (number of elements that will be
* returned by it). The idx array contains the indices returned by the selectors (that is the
* indices used to compute the source offset).
*
* <p>The selIdx array contains the position in the selector (when this is equal to the selector
* size the selector has overflown).
*/
public Object execute(RArray source, boolean drop, int exact) throws UnexpectedResultException {
int[] sourceDim = source.dimensions();
boolean mayHaveNA = Selector.initialize(offsets, selectorVals, sourceDim, selSizes, ast);
int[] destDim = Selector.calculateDestinationDimensions(selSizes, !subset || drop);
int destSize = Selector.calculateSizeFromSelectorSizes(selSizes);
RArray dest = Utils.createArray(source, destSize, destDim, null, null); // drop attributes
if (destSize == 0) {
return dest;
}
int offset = 0;
for (; ; ) {
int sourceOffset = offsets[0];
if (sourceOffset == RInt.NA) {
Utils.setNA(dest, offset);
} else {
dest.set(offset, source.getRef(sourceOffset));
}
offset++;
if (offset < destSize) {
if (!mayHaveNA) {
Selector.advanceNoNA(offsets, sourceDim, selectorVals, ast);
} else {
Selector.advance(offsets, sourceDim, selectorVals, ast);
}
} else {
break;
}
}
return dest;
}
/**
* It checks if the complex covers a given example
*
* @param m The example
* @return boolean True if it covers the example. False in other case
*/
public boolean covered(Instance m) {
boolean cubierto = true;
double[] ejemplo = m.getMuest();
for (int i = 0; i < this.size() && cubierto; i++) {
Selector s = this.getSelector(i);
switch (s.getOperator()) {
case 0: // equal operator
double[] valor = s.getValues();
cubierto = false;
for (int j = 0; (j < valor.length) && (!cubierto); j++) {
cubierto = (ejemplo[s.getAttribute()] == valor[j]);
}
break;
case 1: // distinct operator
cubierto = ejemplo[s.getAttribute()] != s.getValue();
break;
case 2: // lower or equal
cubierto = ejemplo[s.getAttribute()] <= s.getValue();
break;
case 3: // higher
cubierto = ejemplo[s.getAttribute()] > s.getValue();
break;
}
}
return cubierto;
}
/**
* Serves the incoming connections.
*
* @throws IOException
* @throws DirectoryException
*/
private void serveIncomingConnections() throws IOException, DirectoryException {
int selectorState = selector.select();
// We can't rely on return value of select to determine if any keys
// are ready.
// see http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=4850373
for (Iterator<SelectionKey> iterator = selector.selectedKeys().iterator();
iterator.hasNext(); ) {
SelectionKey key = iterator.next();
iterator.remove();
if (key.isAcceptable()) {
// Accept the new client connection.
ServerSocketChannel serverChannel = (ServerSocketChannel) key.channel();
SocketChannel clientChannel = serverChannel.accept();
if (clientChannel != null) {
acceptConnection(clientChannel);
}
}
if (selectorState == 0 && enabled && !shutdownRequested && logger.isTraceEnabled()) {
// Selected keys was non empty but select() returned 0.
// Log warning and hope it blocks on the next select() call.
logger.trace(
"Selector.select() returned 0. "
+ "Selected Keys: %d, Interest Ops: %d, Ready Ops: %d ",
selector.selectedKeys().size(), key.interestOps(), key.readyOps());
}
}
}
/** It prints the complex content */
public void print() {
for (int x = 0; x < compl.size(); x++) {
Selector s = (Selector) compl.get(x);
System.out.print("(" + nombreAtributos[s.getAttribute()] + " ");
switch (s.getOperator()) {
case 0:
System.out.print("=");
break;
case 1:
System.out.print("<>");
break;
case 2:
System.out.print("<=");
break;
default:
System.out.print(">");
}
double[] valores = s.getValues();
if (valores.length > 1) {
System.out.print(" " + valores[0]);
for (int i = 1; i < valores.length - 1; i++) {
System.out.print(" ^ " + valores[i]);
}
System.out.print(" ^ " + valores[valores.length - 1] + ")");
} else {
System.out.print(" " + valores[0] + ")");
}
if (x < compl.size() - 1) {
System.out.print(" AND ");
}
}
}
/**
* It prints on a string the content of the complex
*
* @return String a string with the content of the complex
*/
public String printString() {
String cad = "";
for (int x = 0; x < compl.size(); x++) {
Selector s = (Selector) compl.get(x);
cad += nombreAtributos[s.getAttribute()] + " ";
switch (s.getOperator()) {
case 0:
cad += "=";
break;
case 1:
cad += "<>";
break;
case 2:
cad += "<=";
break;
case 3:
cad += ">";
break;
}
double[] valores = s.getValues();
if (valores.length > 1) {
cad += " " + valores[0];
for (int i = 1; i < valores.length - 1; i++) {
cad += " ^ " + valores[i];
}
cad += " ^ " + valores[valores.length - 1] + "";
} else {
cad += " " + valores[0] + "";
}
if (x < compl.size() - 1) {
cad += " AND ";
}
}
return cad;
}
public DatasetScanFilter(Selector selector) {
if (selector == null) {
this.selectorGroup = Collections.emptyList();
this.containsAtomicIncluders = false;
this.containsAtomicExcluders = false;
this.containsCollectionIncluders = false;
this.containsCollectionExcluders = false;
} else {
boolean anyAtomicIncluders = false;
boolean anyAtomicExcluders = false;
boolean anyCollectionIncluders = false;
boolean anyCollectionExcluders = false;
if (selector.isIncluder()) {
if (selector.isApplyToAtomicDataset()) anyAtomicIncluders = true;
if (selector.isApplyToCollectionDataset()) anyCollectionIncluders = true;
} else { // curSelector.isExcluder()
if (selector.isApplyToAtomicDataset()) anyAtomicExcluders = true;
if (selector.isApplyToCollectionDataset()) anyCollectionExcluders = true;
}
this.selectorGroup = Collections.singletonList(selector);
this.containsAtomicIncluders = anyAtomicIncluders;
this.containsAtomicExcluders = anyAtomicExcluders;
this.containsCollectionIncluders = anyCollectionIncluders;
this.containsCollectionExcluders = anyCollectionExcluders;
}
}
private List<Object> buildBboxWhereParameters(List<Selector.Polygon> bboxSelectors) {
List<Object> obj = new LinkedList<Object>();
for (Selector selector : bboxSelectors) {
obj.addAll(selector.getWhereParam());
}
return obj;
}
/** Selects on sockets and informs their Communicator when there is something to do. */
public void communicate(int timeout) {
try {
selector.select(timeout);
} catch (IOException e) {
// Not really sure why/when this happens yet
return;
}
Iterator<SelectionKey> keys = selector.selectedKeys().iterator();
while (keys.hasNext()) {
SelectionKey key = keys.next();
keys.remove();
if (!key.isValid()) continue; // WHY
Communicator communicator = (Communicator) key.attachment();
if (key.isReadable()) communicator.onReadable();
if (key.isWritable()) communicator.onWritable();
if (key.isAcceptable()) communicator.onAcceptable();
}
// Go through the queue and handle each communicator
while (!queue.isEmpty()) {
Communicator c = queue.poll();
c.onMemo();
}
}
private List<Object> buildSelectorWhereParameters(List<? extends Selector> tagSelectors) {
List<Object> obj = new LinkedList<Object>();
for (Selector selector : tagSelectors) {
obj.addAll(selector.getWhereParam());
}
return obj;
}
boolean initiateConnection(Connection conn_, Peer peer) {
TCPConnection conn = (TCPConnection) conn_;
try {
SocketChannel channel = SocketChannel.open();
InetSocketAddress localAddress = new InetSocketAddress(conn.host_id, 0);
channel.socket().bind(localAddress);
channel.configureBlocking(false);
try {
InetSocketAddress remoteAddress = new InetSocketAddress(peer.host(), peer.port());
if (channel.connect(remoteAddress)) {
// This only happens on Solaris when connecting locally
logger.log(Level.FINEST, "Connected!");
conn.state = Connection.State.connected_out;
conn.channel = channel;
selector.wakeup();
channel.register(selector, SelectionKey.OP_READ, conn);
initiateCER(conn);
return true;
}
} catch (java.nio.channels.UnresolvedAddressException ex) {
channel.close();
return false;
}
conn.state = Connection.State.connecting;
conn.channel = channel;
selector.wakeup();
channel.register(selector, SelectionKey.OP_CONNECT, conn);
} catch (java.io.IOException ex) {
logger.log(
Level.WARNING,
"java.io.IOException caught while initiating connection to '" + peer.host() + "'.",
ex);
}
return true;
}
/** Creates the total selector's set for get all the possible rules */
private Complejo hazSelectores(Dataset train) {
Complejo almacenSelectores;
int nClases = train.getnclases();
almacenSelectores =
new Complejo(nClases); // Aqui voy a almacenar los selectores (numVariable,operador,valor)
Attribute[] atributos = null;
int num_atributos, type;
Vector nominalValues;
atributos = Attributes.getAttributes();
num_atributos = Attributes.getNumAttributes();
Selector s;
for (int i = 0; i < train.getnentradas(); i++) {
type = atributos[i].getType();
switch (type) {
case 0: // NOMINAL
nominalValues = atributos[i].getNominalValuesList();
// System.out.print("{");
for (int j = 0; j < nominalValues.size(); j++) {
// System.out.print ((String)nominalValues.elementAt(j)+" ");
s = new Selector(i, 0, (String) nominalValues.elementAt(j), true); // [atr,op,valor]
// incluimos tb los valores en double para facilitar algunas funciones
s.setValor((double) j);
almacenSelectores.addSelector(s);
// s.print();
}
// System.out.println("}");
break;
}
// System.out.println(num_atributos);
}
return almacenSelectores;
}
public static void main(String[] argv) throws Exception {
Pipe[] pipes = new Pipe[PIPES_COUNT];
Pipe pipe = Pipe.open();
Pipe.SinkChannel sink = pipe.sink();
Pipe.SourceChannel source = pipe.source();
Selector sel = Selector.open();
source.configureBlocking(false);
source.register(sel, SelectionKey.OP_READ);
for (int i = 0; i < PIPES_COUNT; i++) {
pipes[i] = Pipe.open();
Pipe.SourceChannel sc = pipes[i].source();
sc.configureBlocking(false);
sc.register(sel, SelectionKey.OP_READ);
Pipe.SinkChannel sc2 = pipes[i].sink();
sc2.configureBlocking(false);
sc2.register(sel, SelectionKey.OP_WRITE);
}
for (int i = 0; i < LOOPS; i++) {
sink.write(ByteBuffer.allocate(BUF_SIZE));
int x = sel.selectNow();
sel.selectedKeys().clear();
source.read(ByteBuffer.allocate(BUF_SIZE));
}
for (int i = 0; i < PIPES_COUNT; i++) {
pipes[i].sink().close();
pipes[i].source().close();
}
pipe.sink().close();
pipe.source().close();
sel.close();
}
@Override
public Object execute(Frame frame) {
RAny lhsVal = (RAny) lhs.execute(frame);
RAny rowVal = (RAny) rowExpr.execute(frame);
boolean dropVal =
dropExpr.executeLogical(frame)
!= RLogical.FALSE; // FIXME: what is the correct execution order of these args?
int exactVal = exactExpr.executeLogical(frame);
if (!(lhsVal instanceof RArray)) {
throw RError.getObjectNotSubsettable(ast, lhsVal.typeOf());
}
RArray array = (RArray) lhsVal;
int[] dim = array.dimensions();
if (dim == null || dim.length != 2) {
throw RError.getIncorrectDimensions(getAST());
}
int m = dim[0];
int n = dim[1];
try {
int row;
if (rowVal instanceof ScalarIntImpl) {
row = ((ScalarIntImpl) rowVal).getInt();
} else if (rowVal instanceof ScalarDoubleImpl) {
row = Convert.double2int(((ScalarDoubleImpl) rowVal).getDouble());
} else {
throw new UnexpectedResultException(null);
}
if (row > n || row <= 0) {
throw new UnexpectedResultException(null);
}
int[] ndim;
if (dropVal) {
ndim = null;
} else {
ndim = new int[] {1, n};
}
// note: also could be lazy here
RArray res = Utils.createArray(array, n, ndim, null, null); // drop attributes
int offset = row - 1;
for (int i = 0; i < n; i++) {
res.set(i, array.getRef(offset));
offset += m;
}
return res;
} catch (UnexpectedResultException e) {
SelectorNode selIExpr = Selector.createSelectorNode(ast, true, rowExpr);
SelectorNode selJExpr = Selector.createSelectorNode(ast, true, null);
MatrixRead nn = new MatrixRead(ast, true, lhs, selIExpr, selJExpr, dropExpr, exactExpr);
replace(nn, "install MatrixRead from MatrixRowSubset");
Selector selI = selIExpr.executeSelector(rowVal);
Selector selJ = selJExpr.executeSelector(frame);
return nn.executeLoop(array, selI, selJ, dropVal, exactVal);
}
}
/**
* Vorbedingung: variante und selectors sind ungleich null. selectors enthaelt keine Elemente
* gleich null
*
* @param variante
* @return true, wenn alle Selektoren die Variante selektieren, false anderenfalls.
*/
private boolean select(Variante variante, List<Selector<Variante>> selectors) {
for (Selector<Variante> selector : selectors) {
if (!selector.select(variante)) {
return false;
}
}
return true;
}
@Test
public void testGetSelectors() {
List<Selector> expResult = new ArrayList<Selector>();
expResult.add(Selector.createSelector("One.two#three"));
expResult.add(Selector.createSelector("Four.five#six"));
Rule instance = new Rule(expResult, Collections.EMPTY_LIST);
List result = instance.getSelectors();
assertEquals(expResult, result);
}
private void dispatch() throws IOException {
sel.select();
for (Iterator i = sel.selectedKeys().iterator(); i.hasNext(); ) {
SelectionKey sk = (SelectionKey) i.next();
i.remove();
Handler h = (Handler) sk.attachment();
h.handle(sk);
}
}
/** Sending a request to a node not listening on that port should result in disconnection */
@Test
public void testConnectionRefused() throws Exception {
String connectionId =
selector.connect(
new InetSocketAddress("localhost", 6668), BUFFER_SIZE, BUFFER_SIZE, PortType.SSL);
while (selector.disconnected().contains(connectionId)) {
selector.poll(1000L);
}
}
public static void main(String[] args) {
Sequence sequence = new Sequence(10);
for (int i = 0; i < 10; i++) sequence.add(new StringHolder(Integer.toString(i)));
Selector selector = sequence.selector();
while (!selector.end()) {
System.out.print(selector.current() + " ");
selector.next();
}
}
@Override
public String select(String text) {
for (Selector selector : selectors) {
if (text == null) {
return null;
}
text = selector.select(text);
}
return text;
}
@Override
public List<Object> getWhereParam() {
List<Object> ret = new LinkedList<Object>();
for (Selector selector : selectors) {
ret.addAll(selector.getWhereParam());
}
return ret;
}
private String blockingRequest(String connectionId, String s) throws Exception {
selector.poll(1000L, asList(SelectorTest.createSend(connectionId, s)));
while (true) {
selector.poll(1000L);
for (NetworkReceive receive : selector.completedReceives()) {
if (receive.getConnectionId() == connectionId) {
return SelectorTest.asString(receive);
}
}
}
}
public boolean accept(MFile dataset) {
if (dataset == null) return false;
// If no Selectors, accept all datasets.
if (this.selectorGroup.isEmpty()) return true;
if (dataset.isDirectory()) {
// If no collection selectors, accept all collection datasets.
if (!this.containsCollectionIncluders && !this.containsCollectionExcluders) return true;
} else {
// If no atomic selectors, accept all atomic datasets.
if (!this.containsAtomicIncluders && !this.containsAtomicExcluders) return true;
}
boolean include = false;
boolean exclude = false;
for (Selector curSelector : this.selectorGroup) {
if (curSelector.isApplicable(dataset)) {
if (curSelector.match(dataset)) {
if (curSelector.isIncluder()) include = true;
else exclude = true;
}
}
}
// Deal with atomic datasets
if (!dataset.isDirectory()) {
// If have only inclusion Selectors, accept any dataset that is explicitly included.
if (this.containsAtomicIncluders && !this.containsAtomicExcluders) return include;
// If have only exclusion Selectors, accept any dataset not explicitly excluded.
if (this.containsAtomicExcluders && !this.containsAtomicIncluders) return !exclude;
// If have both inclusion and exclusion Selectors, accept datasets that are
// explicitly included but not explicitly excluded.
if (this.containsAtomicIncluders && this.containsAtomicExcluders && include) return !exclude;
// Deal with collection datasets
} else {
// If have only inclusion Selectors, accept any dataset that is explicitly included.
if (this.containsCollectionIncluders && !this.containsCollectionExcluders) return include;
// If have only exclusion Selectors, accept any dataset not explicitly excluded.
if (this.containsCollectionExcluders && !this.containsCollectionIncluders) return !exclude;
// If have both inclusion and exclusion Selectors, accept datasets that are
// explicitly included but not explicitly excluded.
if (this.containsCollectionIncluders && this.containsCollectionExcluders && include)
return !exclude;
}
// Otherwise, don't accept.
return false;
}
/**
* Prints on the standard output the content of this complex object. (List -> Attribute operator
* value)
*/
public void print(int nominal) {
for (int x = 0; x < compl.size(); x++) {
Selector s = (Selector) compl.get(x);
double[] values = s.getValues();
String[] nValues = s.getNValues();
// System.out.print("(Atr" + s.getAtributo() + " ");
System.out.print("(" + attributeNames[s.getAttribute()] + " ");
switch (s.getOperator()) {
case 0:
if (values.length > 1 /*|| valoresN.length>1*/) System.out.print("in");
else System.out.print("=");
break;
case 1:
System.out.print("<>");
break;
case 2:
System.out.print("<=");
break;
default:
System.out.print(">");
}
if (nominal == 0) { // el atributo es nominal
if (nValues.length > 1) {
System.out.print(" " + nValues[0]);
for (int i = 1; i < nValues.length - 1; i++) {
System.out.print(" " + nValues[i]);
}
System.out.print(" " + nValues[nValues.length - 1] + ")");
} else {
System.out.print(" " + nValues[0] + ")");
}
} else {
if (values.length > 1) {
System.out.print(" [" + values[0]);
for (int i = 1; i < values.length - 1; i++) {
System.out.print(" " + values[i]);
}
System.out.print(" " + values[values.length - 1] + "])");
} else {
System.out.print(" " + values[0] + ")");
}
}
if (x < compl.size() - 1) {
System.out.print(" AND ");
}
// System.out.print(" -- "+heuristica+" -- ");
System.out.println();
}
}
private List<Object> buildTagSelectorWhereParameters(List<? extends Selector> tagSelectors) {
List<Object> obj = new LinkedList<Object>();
for (Selector selector : tagSelectors) {
if (selector instanceof Selector.Polygon) {
} else {
obj.addAll(selector.getWhereParam());
}
}
return obj;
}
public Individual mutate(Selector selector) {
Individual child = selector.best().clone();
Individual mutationSource = selector.secondBest().clone();
CrossoverSelector xOverSel = new CrossoverSelector(mutationSource);
xOverSel.visit();
MutationApplier xOverApp = new MutationApplier(child, xOverSel.getCrossover());
xOverApp.visit();
return child;
}
/** Validate that the client can intentionally disconnect and reconnect */
@Test
public void testClientDisconnect() throws Exception {
String connectionId = blockingSSLConnect();
selector.disconnect(connectionId);
selector.poll(10, asList(SelectorTest.createSend(connectionId, "hello1")));
assertEquals("Request should not have succeeded", 0, selector.completedSends().size());
assertEquals("There should be a disconnect", 1, selector.disconnected().size());
assertTrue(
"The disconnect should be from our node", selector.disconnected().contains(connectionId));
connectionId = blockingSSLConnect();
assertEquals("hello2", blockingRequest(connectionId, "hello2"));
}
/* connect and wait for the connection to complete */
private String blockingSSLConnect() throws IOException {
String connectionId =
selector.connect(
new InetSocketAddress("localhost", server.port),
BUFFER_SIZE,
BUFFER_SIZE,
PortType.SSL);
while (!selector.connected().contains(connectionId)) {
selector.poll(10000L);
}
return connectionId;
}
/**
* Remove the selectors from the list of the selectors that have the parameter attribute o
*
* @param attribute the attribute
*/
public void removeSelectorAttribute(int attribute) {
Selector s;
int atrib;
for (int i = 0; i < compl.size(); i++) {
s = (Selector) compl.get(i);
atrib = s.getAttribute();
if (atrib == attribute) {
compl.remove(s);
/*CUIDADO!!!hay q volver al indice anterior pq se ha eliminado un elemento!!*/
i = i - 1;
}
}
}
@Test
public void testCloseAfterConnectCall() throws IOException {
String connectionId =
selector.connect(
new InetSocketAddress("localhost", server.port),
BUFFER_SIZE,
BUFFER_SIZE,
PortType.SSL);
selector.close(connectionId);
selector.poll(0);
Assert.assertTrue(
"Channel should have been added to disconnected list",
selector.disconnected().contains(connectionId));
}
@Test
public void testSSLConnect() throws IOException {
String connectionId =
selector.connect(
new InetSocketAddress("localhost", server.port),
BUFFER_SIZE,
BUFFER_SIZE,
PortType.SSL);
while (!selector.connected().contains(connectionId)) {
selector.poll(10000L);
}
Assert.assertTrue(
"Channel should have been ready by now ", selector.isChannelReady(connectionId));
}
