diff options
Diffstat (limited to 'src/main/java/pl')
4 files changed, 68 insertions, 24 deletions
diff --git a/src/main/java/pl/edu/mimuw/cloudatlas/agent/AgentConfig.java b/src/main/java/pl/edu/mimuw/cloudatlas/agent/AgentConfig.java index 38d764a..e9bbf4e 100644 --- a/src/main/java/pl/edu/mimuw/cloudatlas/agent/AgentConfig.java +++ b/src/main/java/pl/edu/mimuw/cloudatlas/agent/AgentConfig.java @@ -3,6 +3,7 @@ package pl.edu.mimuw.cloudatlas.agent; import pl.edu.mimuw.cloudatlas.agent.modules.*; import pl.edu.mimuw.cloudatlas.agent.modules.Module; import pl.edu.mimuw.cloudatlas.api.Api; +import pl.edu.mimuw.cloudatlas.model.PathName; import java.net.InetAddress; import java.net.SocketException; @@ -43,11 +44,12 @@ public class AgentConfig { Integer timeout = Integer.getInteger("UDUPServer.timeout"); Integer bufsize = Integer.getInteger("UDUPServer.bufsize"); InetAddress serverAddr = InetAddress.getByName(System.getProperty("UDUPServer.hostname")); + String ourPath = System.getProperty("zone_path"); HashMap<ModuleType, Module> modules = new HashMap<ModuleType, Module>(); modules.put(ModuleType.TIMER_SCHEDULER, new TimerScheduler(ModuleType.TIMER_SCHEDULER)); modules.put(ModuleType.RMI, new Remik()); - modules.put(ModuleType.STATE, new Stanik(freshnessPeriod)); + modules.put(ModuleType.STATE, new Stanik(new PathName(ourPath), freshnessPeriod)); modules.put(ModuleType.QUERY, new Qurnik()); modules.put(ModuleType.GOSSIP, new GossipGirl()); diff --git a/src/main/java/pl/edu/mimuw/cloudatlas/agent/modules/GossipGirlState.java b/src/main/java/pl/edu/mimuw/cloudatlas/agent/modules/GossipGirlState.java index 251d8b3..0525f41 100644 --- a/src/main/java/pl/edu/mimuw/cloudatlas/agent/modules/GossipGirlState.java +++ b/src/main/java/pl/edu/mimuw/cloudatlas/agent/modules/GossipGirlState.java @@ -280,26 +280,7 @@ public class GossipGirlState { } public boolean interestedIn(PathName recipientPath, PathName zmiPath) { - return isPrefix(zmiPath.levelUp(), recipientPath) && !isPrefix(zmiPath, recipientPath); - } - - public boolean isPrefix(PathName prefix, PathName path) { - List<String> prefixComponents = prefix.getComponents(); - List<String> pathComponents = path.getComponents(); - - if (prefixComponents.size() > pathComponents.size()) { - return false; - } - - Iterator<String> prefixIterator = prefixComponents.iterator(); - Iterator<String> pathIterator = pathComponents.iterator(); - - while (prefixIterator.hasNext()) { - if (!prefixIterator.next().equals(pathIterator.next())) { - return false; - } - } - return true; + return ValueUtils.isPrefix(zmiPath.levelUp(), recipientPath) && !ValueUtils.isPrefix(zmiPath, recipientPath); } public void sentInfo() { diff --git a/src/main/java/pl/edu/mimuw/cloudatlas/agent/modules/Stanik.java b/src/main/java/pl/edu/mimuw/cloudatlas/agent/modules/Stanik.java index 999c193..6e7d4dc 100644 --- a/src/main/java/pl/edu/mimuw/cloudatlas/agent/modules/Stanik.java +++ b/src/main/java/pl/edu/mimuw/cloudatlas/agent/modules/Stanik.java @@ -2,6 +2,7 @@ package pl.edu.mimuw.cloudatlas.agent.modules; import java.nio.file.Path; import java.util.*; +import java.util.AbstractMap.SimpleImmutableEntry; import java.util.Map.Entry; import pl.edu.mimuw.cloudatlas.agent.messages.*; @@ -19,19 +20,39 @@ public class Stanik extends Module { private long freshnessPeriod; private Set<ValueContact> contacts; private ValueTime contactsTimestamp; + private PathName ourPath; - public Stanik(long freshnessPeriod) { + public Stanik(PathName ourPath, long freshnessPeriod) { super(ModuleType.STATE); + this.ourPath = ourPath; hierarchy = new ZMI(); queries = new HashMap<Attribute, Entry<ValueQuery, ValueTime>>(); hierarchy.getAttributes().add("timestamp", new ValueTime(0l)); this.freshnessPeriod = freshnessPeriod; this.contactsTimestamp = ValueUtils.currentTime(); this.contacts = new HashSet<>(); + setDefaultQueries(); } - public Stanik() { - this(60 * 1000); + private void setDefaultQueries() { + String cardinalityQuery = "SELECT sum(cardinality) AS cardinality"; + String contactsQuery = "SELECT random(5, unfold(contacts)) AS contacts"; + + setDefaultQuery("&cardinality", cardinalityQuery); + setDefaultQuery("&contacts", contactsQuery); + } + + private void setDefaultQuery(String name, String query) { + try { + ValueQuery queryValue = new ValueQuery(query); + queries.put(new Attribute(name), new SimpleImmutableEntry(queryValue, new ValueTime(0l))); + } catch (Exception e) { + System.out.println("ERROR: failed to compile default query"); + } + } + + public Stanik(PathName ourPath) { + this(ourPath, 60 * 1000); } public void handleTyped(StanikMessage message) throws InterruptedException, InvalidMessageType { @@ -61,6 +82,7 @@ public class Stanik extends Module { public void handleGetState(GetStateMessage message) throws InterruptedException { pruneHierarchy(); + addValues(); StateMessage response = new StateMessage( "", message.getRequestingModule(), @@ -78,6 +100,23 @@ public class Stanik extends Module { pruneZMI(hierarchy, now); } + private void addValues() { + addValuesRecursive(hierarchy, 0); + } + + private void addValuesRecursive(ZMI zmi, long level) { + zmi.getAttributes().addOrChange("level", new ValueInt(level)); + if (ValueUtils.isPrefix(zmi.getPathName(), ourPath)) { + zmi.getAttributes().addOrChange("owner", new ValueString(ourPath.toString())); + } + if (zmi.getPathName().equals(ourPath)) { + zmi.getAttributes().addOrChange("cardinality", new ValueInt(1l)); + } + for (ZMI son : zmi.getSons()) { + addValuesRecursive(son, level + 1); + } + } + private boolean pruneZMI(ZMI zmi, ValueTime time) { Value timestamp = zmi.getAttributes().get("timestamp"); diff --git a/src/main/java/pl/edu/mimuw/cloudatlas/model/ValueUtils.java b/src/main/java/pl/edu/mimuw/cloudatlas/model/ValueUtils.java index 866349f..20d6600 100644 --- a/src/main/java/pl/edu/mimuw/cloudatlas/model/ValueUtils.java +++ b/src/main/java/pl/edu/mimuw/cloudatlas/model/ValueUtils.java @@ -1,5 +1,8 @@ package pl.edu.mimuw.cloudatlas.model; +import java.util.List; +import java.util.Iterator; + public class ValueUtils { public static boolean valueNonNullOfType(Value value, Type type) { return value != null && !value.isNull() && value.getType().isCompatible(type); @@ -16,4 +19,23 @@ public class ValueUtils { public static ValueTime addToTime(ValueTime time, long millis) { return time.addValue(new ValueDuration(millis)); } + + public static boolean isPrefix(PathName prefix, PathName path) { + List<String> prefixComponents = prefix.getComponents(); + List<String> pathComponents = path.getComponents(); + + if (prefixComponents.size() > pathComponents.size()) { + return false; + } + + Iterator<String> prefixIterator = prefixComponents.iterator(); + Iterator<String> pathIterator = pathComponents.iterator(); + + while (prefixIterator.hasNext()) { + if (!prefixIterator.next().equals(pathIterator.next())) { + return false; + } + } + return true; + } } |