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Added newValue and oldValue methods to MapEvent.

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Change-Id: Ibaffc8079de03b1f4623044ec53c949831ea8cd1
This commit is contained in:
Madan Jampani 2016-01-27 21:06:11 -08:00
parent 7f8a7cb733
commit f95290af5b
6 changed files with 180 additions and 88 deletions
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2
core/store/primitives/src/main/java/org/onosproject/store/primitives/impl/ConsistentMapBackedJavaMap.java → core/api/src/main/java/org/onosproject/store/primitives/ConsistentMapBackedJavaMap.java
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@ -13,7 +13,7 @@
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.onosproject.store.primitives.impl;
package org.onosproject.store.primitives;
import java.util.Collection;
import java.util.Map;

46
core/api/src/main/java/org/onosproject/store/service/MapEvent.java
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@ -50,21 +50,24 @@ public class MapEvent<K, V> {
private final String name;
private final Type type;
private final K key;
private final Versioned<V> value;
private final Versioned<V> newValue;
private final Versioned<V> oldValue;
/**
* Creates a new event object.
*
* @param name map name
* @param type type of event
* @param key key the event concerns
* @param value value key is mapped to
* @param currentValue new value key is mapped to
* @param previousValue value that was replaced
*/
public MapEvent(String name, Type type, K key, Versioned<V> value) {
public MapEvent(String name, K key, Versioned<V> currentValue, Versioned<V> previousValue) {
this.name = name;
this.type = type;
this.key = key;
this.value = value;
this.newValue = currentValue;
this.oldValue = previousValue;
this.type = currentValue != null ?
previousValue != null ? Type.UPDATE : Type.INSERT : Type.REMOVE;
}
/**
@ -100,9 +103,30 @@ public class MapEvent<K, V> {
* the new value.
*
* @return the value
* @deprecated use {@link #newValue()} or {@link #oldValue()} instead.
*/
@Deprecated
public Versioned<V> value() {
return value;
return type == Type.REMOVE ? oldValue() : newValue();
}
/**
* Returns the new value in the map associated with the key. If {@link #type()} returns {@code REMOVE},
* this method will return {@code null}.
*
* @return the new value for key
*/
public Versioned<V> newValue() {
return newValue;
}
/**
* Returns the value associated with the key, before it was updated.
*
* @return previous value in map for the key
*/
public Versioned<V> oldValue() {
return oldValue;
}
@Override
@ -115,12 +139,13 @@ public class MapEvent<K, V> {
return Objects.equals(this.name, that.name) &&
Objects.equals(this.type, that.type) &&
Objects.equals(this.key, that.key) &&
Objects.equals(this.value, that.value);
Objects.equals(this.newValue, that.newValue) &&
Objects.equals(this.oldValue, that.oldValue);
}
@Override
public int hashCode() {
return Objects.hash(name, type, key, value);
return Objects.hash(name, type, key, newValue, oldValue);
}
@Override
@ -129,7 +154,8 @@ public class MapEvent<K, V> {
.add("name", name)
.add("type", type)
.add("key", key)
.add("value", value)
.add("newValue", newValue)
.add("oldValue", oldValue)
.toString();
}
}

28
core/api/src/test/java/org/onosproject/store/service/MapEventTest.java
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@ -16,6 +16,7 @@
package org.onosproject.store.service;
import com.google.common.testing.EqualsTester;
import org.junit.Test;
import static org.hamcrest.MatcherAssert.assertThat;
@ -26,13 +27,14 @@ import static org.hamcrest.Matchers.is;
*/
public class MapEventTest {
private final Versioned<Integer> vStats = new Versioned<>(2, 1);
private final Versioned<Integer> vStatsNew = new Versioned<>(2, 2);
private final Versioned<Integer> vStatsOld = new Versioned<>(1, 1);
private final MapEvent<String, Integer> stats1 = new MapEvent<>("a", MapEvent.Type.INSERT, "1", vStats);
private final MapEvent<String, Integer> stats1 = new MapEvent<>("a", "1", vStatsNew, null);
private final MapEvent<String, Integer> stats2 = new MapEvent<>("a", MapEvent.Type.REMOVE, "1", vStats);
private final MapEvent<String, Integer> stats2 = new MapEvent<>("a", "1", null, vStatsOld);
private final MapEvent<String, Integer> stats3 = new MapEvent<>("a", MapEvent.Type.UPDATE, "1", vStats);
private final MapEvent<String, Integer> stats3 = new MapEvent<>("a", "1", vStatsNew, vStatsOld);
/**
* Tests the creation of the MapEvent object.
@ -42,7 +44,23 @@ public class MapEventTest {
assertThat(stats1.name(), is("a"));
assertThat(stats1.type(), is(MapEvent.Type.INSERT));
assertThat(stats1.key(), is("1"));
assertThat(stats1.value(), is(vStats));
assertThat(stats1.value(), is(vStatsNew));
assertThat(stats1.newValue(), is(vStatsNew));
assertThat(stats1.oldValue(), is((Versioned<Integer>) null));
assertThat(stats2.name(), is("a"));
assertThat(stats2.type(), is(MapEvent.Type.REMOVE));
assertThat(stats2.key(), is("1"));
assertThat(stats2.value(), is(vStatsOld));
assertThat(stats2.newValue(), is((Versioned<Integer>) null));
assertThat(stats2.oldValue(), is(vStatsOld));
assertThat(stats3.name(), is("a"));
assertThat(stats3.type(), is(MapEvent.Type.UPDATE));
assertThat(stats3.key(), is("1"));
assertThat(stats3.value(), is(vStatsNew));
assertThat(stats3.newValue(), is(vStatsNew));
assertThat(stats3.oldValue(), is(vStatsOld));
}
/**

186
core/api/src/test/java/org/onosproject/store/service/TestConsistentMap.java
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@ -21,15 +21,18 @@ import java.util.LinkedList;
import java.util.List;
import java.util.Map;
import java.util.Set;
import java.util.concurrent.atomic.AtomicBoolean;
import java.util.concurrent.atomic.AtomicLong;
import java.util.concurrent.atomic.AtomicReference;
import java.util.function.BiFunction;
import java.util.function.Function;
import java.util.function.Predicate;
import java.util.stream.Collectors;
import org.onosproject.core.ApplicationId;
import org.onosproject.store.primitives.ConsistentMapBackedJavaMap;
import static org.onosproject.store.service.MapEvent.Type.*;
import com.google.common.base.Objects;
/**
* Test implementation of the consistent map.
@ -37,7 +40,7 @@ import static org.onosproject.store.service.MapEvent.Type.*;
public final class TestConsistentMap<K, V> extends ConsistentMapAdapter<K, V> {
private final List<MapEventListener<K, V>> listeners;
private final Map<K, V> map;
private final Map<K, Versioned<V>> map;
private final String mapName;
private final AtomicLong counter = new AtomicLong(0);
@ -54,9 +57,9 @@ public final class TestConsistentMap<K, V> extends ConsistentMapAdapter<K, V> {
/**
* Notify all listeners of an event.
*/
private void notifyListeners(String mapName, MapEvent.Type type,
K key, Versioned<V> value) {
MapEvent<K, V> event = new MapEvent<>(mapName, type, key, value);
private void notifyListeners(String mapName,
K key, Versioned<V> newvalue, Versioned<V> oldValue) {
MapEvent<K, V> event = new MapEvent<>(mapName, key, newvalue, oldValue);
listeners.forEach(
listener -> listener.event(event)
);
@ -84,71 +87,103 @@ public final class TestConsistentMap<K, V> extends ConsistentMapAdapter<K, V> {
@Override
public Versioned<V> get(K key) {
V value = map.get(key);
if (value != null) {
return version(value);
} else {
return null;
}
return map.get(key);
}
@Override
public Versioned<V> computeIfAbsent(K key, Function<? super K, ? extends V> mappingFunction) {
Versioned<V> result = version(map.computeIfAbsent(key, mappingFunction));
notifyListeners(mapName, INSERT, key, result);
AtomicBoolean updated = new AtomicBoolean(false);
Versioned<V> result = map.compute(key, (k, v) -> {
if (v == null) {
updated.set(true);
return version(mappingFunction.apply(key));
}
return v;
});
if (updated.get()) {
notifyListeners(mapName, key, result, null);
}
return result;
}
@Override
public Versioned<V> compute(K key, BiFunction<? super K, ? super V, ? extends V> remappingFunction) {
return version(map.compute(key, remappingFunction));
AtomicBoolean updated = new AtomicBoolean(false);
AtomicReference<Versioned<V>> previousValue = new AtomicReference<>();
Versioned<V> result = map.compute(key, (k, v) -> {
updated.set(true);
previousValue.set(v);
return version(remappingFunction.apply(k, Versioned.valueOrNull(v)));
});
if (updated.get()) {
notifyListeners(mapName, key, result, previousValue.get());
}
return result;
}
@Override
public Versioned<V> computeIfPresent(K key, BiFunction<? super K, ? super V, ? extends V> remappingFunction) {
return version(map.computeIfPresent(key, remappingFunction));
}
@Override
public Versioned<V> computeIf(K key, Predicate<? super V> condition,
BiFunction<? super K, ? super V, ? extends V> remappingFunction) {
return version(map.compute(key, (k, existingValue) -> {
if (condition.test(existingValue)) {
return remappingFunction.apply(k, existingValue);
} else {
return existingValue;
AtomicBoolean updated = new AtomicBoolean(false);
AtomicReference<Versioned<V>> previousValue = new AtomicReference<>();
Versioned<V> result = map.compute(key, (k, v) -> {
if (v != null) {
updated.set(true);
previousValue.set(v);
return version(remappingFunction.apply(k, v.value()));
}
}));
}
@Override
public Versioned<V> put(K key, V value) {
Versioned<V> result = version(value);
if (map.put(key, value) == null) {
notifyListeners(mapName, INSERT, key, result);
} else {
notifyListeners(mapName, UPDATE, key, result);
return v;
});
if (updated.get()) {
notifyListeners(mapName, key, result, previousValue.get());
}
return result;
}
@Override
public Versioned<V> putAndGet(K key, V value) {
Versioned<V> result = version(map.put(key, value));
notifyListeners(mapName, UPDATE, key, result);
public Versioned<V> computeIf(K key, Predicate<? super V> condition,
BiFunction<? super K, ? super V, ? extends V> remappingFunction) {
AtomicBoolean updated = new AtomicBoolean(false);
AtomicReference<Versioned<V>> previousValue = new AtomicReference<>();
Versioned<V> result = map.compute(key, (k, v) -> {
if (condition.test(Versioned.valueOrNull(v))) {
previousValue.set(v);
updated.set(true);
return version(remappingFunction.apply(k, Versioned.valueOrNull(v)));
}
return v;
});
if (updated.get()) {
notifyListeners(mapName, key, result, previousValue.get());
}
return result;
}
@Override
public Versioned<V> put(K key, V value) {
Versioned<V> newValue = version(value);
Versioned<V> previousValue = map.put(key, newValue);
notifyListeners(mapName, key, newValue, previousValue);
return previousValue;
}
@Override
public Versioned<V> putAndGet(K key, V value) {
Versioned<V> newValue = version(value);
Versioned<V> previousValue = map.put(key, newValue);
notifyListeners(mapName, key, newValue, previousValue);
return newValue;
}
@Override
public Versioned<V> remove(K key) {
Versioned<V> result = version(map.remove(key));
notifyListeners(mapName, REMOVE, key, result);
Versioned<V> result = map.remove(key);
notifyListeners(mapName, key, null, result);
return result;
}
@Override
public void clear() {
map.clear();
map.keySet().forEach(this::remove);
}
@Override
@ -158,70 +193,85 @@ public final class TestConsistentMap<K, V> extends ConsistentMapAdapter<K, V> {
@Override
public Collection<Versioned<V>> values() {
return map
.values()
return map.values()
.stream()
.map(this::version)
.collect(Collectors.toList());
}
@Override
public Set<Map.Entry<K, Versioned<V>>> entrySet() {
return super.entrySet();
return map.entrySet();
}
@Override
public Versioned<V> putIfAbsent(K key, V value) {
Versioned<V> result = version(map.putIfAbsent(key, value));
if (map.get(key).equals(value)) {
notifyListeners(mapName, INSERT, key, result);
Versioned<V> newValue = version(value);
Versioned<V> result = map.putIfAbsent(key, newValue);
if (result == null) {
notifyListeners(mapName, key, newValue, result);
}
return result;
}
@Override
public boolean remove(K key, V value) {
boolean removed = map.remove(key, value);
if (removed) {
notifyListeners(mapName, REMOVE, key, null);
Versioned<V> existingValue = map.get(key);
if (Objects.equal(Versioned.valueOrNull(existingValue), value)) {
map.remove(key);
notifyListeners(mapName, key, null, existingValue);
return true;
}
return removed;
return false;
}
@Override
public boolean remove(K key, long version) {
boolean removed = map.remove(key, version);
if (removed) {
notifyListeners(mapName, REMOVE, key, null);
Versioned<V> existingValue = map.get(key);
if (existingValue == null) {
return false;
}
return removed;
if (existingValue.version() == version) {
map.remove(key);
notifyListeners(mapName, key, null, existingValue);
return true;
}
return false;
}
@Override
public Versioned<V> replace(K key, V value) {
Versioned<V> result = version(map.replace(key, value));
if (map.get(key).equals(value)) {
notifyListeners(mapName, UPDATE, key, result);
Versioned<V> existingValue = map.get(key);
if (existingValue == null) {
return null;
}
Versioned<V> newValue = version(value);
Versioned<V> result = map.put(key, newValue);
notifyListeners(mapName, key, newValue, result);
return result;
}
@Override
public boolean replace(K key, V oldValue, V newValue) {
boolean replaced = map.replace(key, oldValue, newValue);
if (replaced) {
notifyListeners(mapName, REMOVE, key, null);
Versioned<V> existingValue = map.get(key);
if (existingValue == null || !existingValue.value().equals(oldValue)) {
return false;
}
return replaced;
Versioned<V> value = version(newValue);
Versioned<V> result = map.put(key, value);
notifyListeners(mapName, key, value, result);
return true;
}
@Override
public boolean replace(K key, long oldVersion, V newValue) {
boolean replaced = map.replace(key, map.get(key), newValue);
if (replaced) {
notifyListeners(mapName, REMOVE, key, null);
Versioned<V> existingValue = map.get(key);
if (existingValue == null || existingValue.version() != oldVersion) {
return false;
}
return replaced;
Versioned<V> value = version(newValue);
Versioned<V> result = map.put(key, value);
notifyListeners(mapName, key, value, result);
return true;
}
@Override
@ -236,7 +286,7 @@ public final class TestConsistentMap<K, V> extends ConsistentMapAdapter<K, V> {
@Override
public Map<K, V> asJavaMap() {
return map;
return new ConsistentMapBackedJavaMap<>(this);
}
public static Builder builder() {

1
core/store/primitives/src/main/java/org/onosproject/store/primitives/impl/DefaultConsistentMap.java
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@ -28,6 +28,7 @@ import java.util.function.BiFunction;
import java.util.function.Function;
import java.util.function.Predicate;
import org.onosproject.store.primitives.ConsistentMapBackedJavaMap;
import org.onosproject.store.service.AsyncConsistentMap;
import org.onosproject.store.service.ConsistentMap;
import org.onosproject.store.service.ConsistentMapException;

5
core/store/primitives/src/main/java/org/onosproject/store/primitives/impl/UpdateResult.java
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@ -76,10 +76,7 @@ public class UpdateResult<K, V> {
if (!updated) {
return null;
} else {
MapEvent.Type eventType = oldValue == null ?
MapEvent.Type.INSERT : newValue == null ? MapEvent.Type.REMOVE : MapEvent.Type.UPDATE;
Versioned<V> eventValue = eventType == MapEvent.Type.REMOVE ? oldValue : newValue;
return new MapEvent<>(mapName(), eventType, key(), eventValue);
return new MapEvent<>(mapName(), key(), newValue, oldValue);
}
}
}