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package pl.edu.mimuw.cloudatlas.agent.modules;
import org.junit.Before;
import org.junit.Test;
import static org.junit.Assert.*;
import static org.hamcrest.CoreMatchers.hasItems;
import java.net.InetAddress;
import java.util.AbstractMap.SimpleImmutableEntry;
import java.util.HashMap;
import java.util.Map;
import java.util.Map.Entry;
import java.util.Set;
import pl.edu.mimuw.cloudatlas.agent.MockExecutor;
import pl.edu.mimuw.cloudatlas.agent.messages.AgentMessage;
import pl.edu.mimuw.cloudatlas.agent.messages.AttributesMessage;
import pl.edu.mimuw.cloudatlas.agent.messages.HejkaMessage;
import pl.edu.mimuw.cloudatlas.agent.messages.GetStateMessage;
import pl.edu.mimuw.cloudatlas.agent.messages.GossipGirlMessage;
import pl.edu.mimuw.cloudatlas.agent.messages.InitiateGossipMessage;
import pl.edu.mimuw.cloudatlas.agent.messages.QueryMessage;
import pl.edu.mimuw.cloudatlas.agent.messages.NoCoTamMessage;
import pl.edu.mimuw.cloudatlas.agent.messages.StanikMessage;
import pl.edu.mimuw.cloudatlas.agent.messages.StateMessage;
import pl.edu.mimuw.cloudatlas.agent.messages.UDUPMessage;
import pl.edu.mimuw.cloudatlas.agent.modules.ModuleType;
import pl.edu.mimuw.cloudatlas.model.AttributesMap;
import pl.edu.mimuw.cloudatlas.model.Attribute;
import pl.edu.mimuw.cloudatlas.model.PathName;
import pl.edu.mimuw.cloudatlas.model.TestUtil;
import pl.edu.mimuw.cloudatlas.model.ValueContact;
import pl.edu.mimuw.cloudatlas.model.ValueInt;
import pl.edu.mimuw.cloudatlas.model.ValueQuery;
import pl.edu.mimuw.cloudatlas.model.ValueString;
import pl.edu.mimuw.cloudatlas.model.ValueTime;
import pl.edu.mimuw.cloudatlas.model.ValueUtils;
import pl.edu.mimuw.cloudatlas.model.ZMI;
public class GossipGirlTest {
private GossipGirl gossipGirl;
private MockExecutor executor;
private final PathName ourPath = new PathName("/son/grand");
private final PathName theirPath = new PathName("/son/bro");
private ValueContact theirContact;
private InitiateGossipMessage initiateGossipMessage;
private ValueTime testTime;
private ZMI initiatorHierarchy;
private Map<Attribute, Entry<ValueQuery, ValueTime>> initiatorQueries;
private StateMessage initiatorStateMessage;
private NoCoTamMessage noCoTamMessage;
@Before
public void setupLocals() throws Exception {
gossipGirl = new GossipGirl();
executor = new MockExecutor(gossipGirl);
theirContact = new ValueContact(
theirPath,
InetAddress.getByAddress("localhost", new byte[] { 127, 0, 0, 1 })
);
initiateGossipMessage = new InitiateGossipMessage(
"test_msg",
0,
ourPath,
theirContact
);
testTime = ValueUtils.currentTime();
setupHierarchy();
setupQueries();
initiatorStateMessage = new StateMessage("", ModuleType.GOSSIP, 0, 0, initiatorHierarchy, initiatorQueries);
Map<PathName, ValueTime> otherZoneTimestamps = makeOtherZoneTimestamps();
Map<Attribute, ValueTime> otherQueryTimestamps = makeOtherQueryTimestamps();
noCoTamMessage = new NoCoTamMessage("", 0, 0, 42, otherZoneTimestamps, otherQueryTimestamps, TestUtil.addToTime(testTime, 10), TestUtil.addToTime(testTime, 22));
}
public Map<PathName, ValueTime> makeOtherZoneTimestamps() {
Map<PathName, ValueTime> zoneTimestamps = new HashMap();
addOtherZoneTimestamp(zoneTimestamps, "/son/sis", -100);
addOtherZoneTimestamp(zoneTimestamps, "/son/bro", 0);
addOtherZoneTimestamp(zoneTimestamps, "/son/whodis", -300);
return zoneTimestamps;
}
public Map<Attribute, ValueTime> makeOtherQueryTimestamps() {
Map<Attribute, ValueTime> queryTimestamps = new HashMap();
addOtherQueryTimestamp(queryTimestamps, "&one", 10);
addOtherQueryTimestamp(queryTimestamps, "&query", -400);
addOtherQueryTimestamp(queryTimestamps, "&three", 0);
return queryTimestamps;
}
public void addOtherQueryTimestamp(Map<Attribute, ValueTime> timestamps, String name, long offset) {
timestamps.put(new Attribute(name), TestUtil.addToTime(testTime, offset));
}
public void addOtherZoneTimestamp(Map<PathName, ValueTime> timestamps, String path, long offset) {
timestamps.put(new PathName(path), TestUtil.addToTime(testTime, offset));
}
public void setupHierarchy() {
initiatorHierarchy = makeZMI(null, null, 13l, "hello", testTime);
ZMI son = makeZMI(initiatorHierarchy, "son", 42l, "world", testTime);
ZMI daughter = makeZMI(initiatorHierarchy, "daughter", 24l, "kebab", testTime);
ZMI grand = makeZMI(son, "grand", 1337l, "ok", testTime);
ZMI bro = makeZMI(son, "bro", 3451434l, "whazzup", testTime);
ZMI sis = makeZMI(son, "sis", 420l, "hey", testTime);
}
public void setupQueries() throws Exception {
initiatorQueries = new HashMap();
addQuery(initiatorQueries, "&one", "SELECT 1 AS one", testTime);
addQuery(initiatorQueries, "&two", "SELECT 2 AS two", testTime);
addQuery(initiatorQueries, "&query", "SELECT sum(foo) AS foo", testTime);
}
public void addQuery(Map<Attribute, Entry<ValueQuery, ValueTime>> queries, String name, String query, ValueTime timestamp) throws Exception {
queries.put(
new Attribute(name),
new SimpleImmutableEntry(new ValueQuery(query), timestamp)
);
}
private ZMI makeZMI(ZMI parent, String name, Long foo, String bar, ValueTime timestamp) {
ZMI zmi = new ZMI(parent);
if (parent != null) {
parent.addSon(zmi);
}
AttributesMap attributes = zmi.getAttributes();
attributes.add("name", new ValueString(name));
attributes.add("foo", new ValueInt(foo));
attributes.add("bar", new ValueString(bar));
attributes.add("timestamp", timestamp);
return zmi;
}
@Test
public void initiateGossipRequestsState() throws Exception {
gossipGirl.handleTyped(initiateGossipMessage);
AgentMessage receivedMessage = executor.messagesToPass.poll();
assertNotNull(receivedMessage);
assertEquals(ModuleType.STATE, receivedMessage.getDestinationModule());
StanikMessage stanikMessage = (StanikMessage) receivedMessage;
assertEquals(StanikMessage.Type.GET_STATE, stanikMessage.getType());
GetStateMessage getStateMessage = (GetStateMessage) stanikMessage;
assertEquals(ModuleType.GOSSIP, getStateMessage.getRequestingModule());
}
@Test
public void initiatorSendsHejkaOnState() throws Exception {
gossipGirl.handleTyped(initiateGossipMessage);
executor.messagesToPass.take();
gossipGirl.handleTyped(initiatorStateMessage);
AgentMessage receivedMessage = executor.messagesToPass.poll();
assertUDUPMessage(
receivedMessage,
new PathName("/son/bro"),
GossipGirlMessage.Type.HEJKA
);
HejkaMessage hejkaMessage = (HejkaMessage) ((UDUPMessage) receivedMessage).getContent();
assertEquals(0, hejkaMessage.getSenderGossipId());
System.out.println(hejkaMessage.getZoneTimestamps().keySet());
assertEquals(3, TestUtil.iterableSize(hejkaMessage.getZoneTimestamps().keySet()));
Set<PathName> zoneSet = hejkaMessage.getZoneTimestamps().keySet();
assertThat(zoneSet, hasItems(new PathName("/daughter")));
assertThat(zoneSet, hasItems(new PathName("/son/sis")));
assertThat(zoneSet, hasItems(new PathName("/son/grand")));
assertEquals(3, TestUtil.iterableSize(hejkaMessage.getQueryTimestamps().keySet()));
Set<Attribute> querySet = hejkaMessage.getQueryTimestamps().keySet();
assertThat(querySet, hasItems(new Attribute("&one")));
assertThat(querySet, hasItems(new Attribute("&two")));
assertThat(querySet, hasItems(new Attribute("&query")));
}
@Test
public void initiatorSendsZonesAndQueriesOnNoCoTam() throws Exception {
gossipGirl.handleTyped(initiateGossipMessage);
executor.messagesToPass.take();
gossipGirl.handleTyped(initiatorStateMessage);
executor.messagesToPass.take();
gossipGirl.handleTyped(noCoTamMessage);
// 3 ZMIs, 2 queries
assertEquals(5, executor.messagesToPass.size());
AgentMessage receivedMessage1 = executor.messagesToPass.poll();
assertAttributeMessage(receivedMessage1, "/son/bro", "/daughter");
AgentMessage receivedMessage2 = executor.messagesToPass.poll();
assertAttributeMessage(receivedMessage2, "/son/bro", "/son/sis");
AgentMessage receivedMessage3 = executor.messagesToPass.poll();
assertAttributeMessage(receivedMessage3, "/son/bro", "/son/grand");
AgentMessage receivedMessage4 = executor.messagesToPass.poll();
assertQueryMessage(receivedMessage4, "/son/bro", "&two", "SELECT 2 AS two");
AgentMessage receivedMessage5 = executor.messagesToPass.poll();
assertQueryMessage(receivedMessage5, "/son/bro", "&query", "SELECT sum(foo) AS foo");
}
private void assertQueryMessage(AgentMessage message, String recipientPath, String name, String query) throws Exception {
assertUDUPMessage(
message,
new PathName(recipientPath),
GossipGirlMessage.Type.QUERY
);
QueryMessage queryMessage = (QueryMessage) ((UDUPMessage) message).getContent();
assertEquals(new Attribute(name), queryMessage.getName());
assertEquals(new ValueQuery(query), queryMessage.getQuery());
}
private void assertAttributeMessage(AgentMessage message, String recipientPath, String zonePath) throws Exception {
assertUDUPMessage(
message,
new PathName(recipientPath),
GossipGirlMessage.Type.ATTRIBUTES
);
AttributesMessage attributesMessage = (AttributesMessage) ((UDUPMessage) message).getContent();
assertEquals(new PathName(zonePath), attributesMessage.getPath());
}
private void assertUDUPMessage(AgentMessage message, PathName destinationName, GossipGirlMessage.Type type) throws Exception {
assertNotNull(message);
assertEquals(ModuleType.UDP, message.getDestinationModule());
UDUPMessage udupMessage = (UDUPMessage) message;
assertEquals(destinationName, udupMessage.getContact().getName());
assertEquals(ModuleType.GOSSIP, udupMessage.getContent().getDestinationModule());
GossipGirlMessage gossipMessage = (GossipGirlMessage) udupMessage.getContent();
assertEquals(type, gossipMessage.getType());
}
}
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