/*
* Copyright Terracotta, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.ehcache.internal.store;
import org.ehcache.core.spi.store.StoreAccessException;
import org.ehcache.core.spi.function.Function;
import org.ehcache.core.spi.store.Store;
import org.ehcache.spi.test.After;
import org.ehcache.spi.test.Before;
import org.ehcache.spi.test.LegalSPITesterException;
import org.ehcache.spi.test.SPITest;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Map;
import java.util.Set;
import static org.hamcrest.MatcherAssert.assertThat;
import static org.hamcrest.Matchers.containsInAnyOrder;
import static org.hamcrest.Matchers.is;
import static org.hamcrest.Matchers.nullValue;
/**
* Test the {@link Store#bulkCompute(java.util.Set, Function)} contract of the
* {@link Store Store} interface.
*
* @author Gaurav Mangalick
*/
public class StoreBulkComputeTest<K, V> extends SPIStoreTester<K, V> {
public StoreBulkComputeTest(StoreFactory<K, V> factory) {
super(factory);
}
private Store<K, V> kvStore;
@Before
public void setUp() {
kvStore = factory.newStore();
}
@After
public void tearDown() {
if (kvStore != null) {
factory.close(kvStore);
kvStore = null;
}
}
@SuppressWarnings({ "unchecked" })
@SPITest
public void remappingFunctionReturnsIterableOfEntriesForEachInputEntry() throws Exception {
Set<K> inputKeys = new HashSet<K>();
int nbElements = 10;
for (long i = 0; i < nbElements; i++) {
K k = factory.createKey(i);
V v = factory.createValue(i);
inputKeys.add(k);
kvStore.put(k, v);
}
try {
Map<K, Store.ValueHolder<V>> mapFromRemappingFunction = kvStore.bulkCompute(inputKeys, new Function<Iterable<? extends Map.Entry<? extends K, ? extends V>>, Iterable<? extends Map.Entry<? extends K, ? extends V>>>() {
@Override
public Iterable<? extends Map.Entry<? extends K, ? extends V>> apply(Iterable<? extends Map.Entry<? extends K, ? extends V>> entries) {
Map<K, V> update = new HashMap<K, V>();
for (Map.Entry<? extends K, ? extends V> entry : entries) {
update.put(entry.getKey(), entry.getValue());
}
return update.entrySet();
}
}
);
assertThat(mapFromRemappingFunction.keySet(), containsInAnyOrder((K[])inputKeys.toArray()));
} catch (StoreAccessException e) {
throw new LegalSPITesterException("Warning, an exception is thrown due to the SPI test");
}
}
@SuppressWarnings({ "unchecked" })
@SPITest
public void testWrongKeyType() throws Exception {
Set<K> inputKeys = new HashSet<K>();
int nbElements = 10;
for (long i = 0; i < nbElements; i++) {
if (factory.getKeyType() == String.class) {
inputKeys.add((K)new Object());
} else {
inputKeys.add((K)"WrongKeyType");
}
}
try {
kvStore.bulkCompute(inputKeys, new Function<Iterable<? extends Map.Entry<? extends K, ? extends V>>, Iterable<? extends Map.Entry<? extends K, ? extends V>>>() {
@Override
public Iterable<? extends Map.Entry<? extends K, ? extends V>> apply(Iterable<? extends Map.Entry<? extends K, ? extends V>> entries) {
throw new AssertionError("Expected ClassCastException because the key is of the wrong type");
}
});
throw new AssertionError("Expected ClassCastException because the key is of the wrong type");
} catch (ClassCastException e) {
// expected
} catch (StoreAccessException e) {
throw new LegalSPITesterException("Warning, an exception is thrown due to the SPI test");
}
}
@SPITest
public void mappingIsRemovedFromStoreForNullValueEntriesFromRemappingFunction() throws Exception {
Set<K> inputKeys = new HashSet<K>();
int nbElements = 10;
for (long i = 0; i < nbElements; i++) {
K k = factory.createKey(i);
V v = factory.createValue(i);
inputKeys.add(k);
kvStore.put(k, v);
}
try {
kvStore.bulkCompute(inputKeys, new Function<Iterable<? extends Map.Entry<? extends K, ? extends V>>, Iterable<? extends Map.Entry<? extends K, ? extends V>>>() {
@Override
public Iterable<? extends Map.Entry<? extends K, ? extends V>> apply(Iterable<? extends Map.Entry<? extends K, ? extends V>> entries) {
Map<K, V> update = new HashMap<K, V>();
for (Map.Entry<? extends K, ? extends V> entry : entries) {
update.put(entry.getKey(), null);
}
return update.entrySet();
}
});
for (K key : inputKeys) {
assertThat(kvStore.get(key), is(nullValue()));
}
} catch (StoreAccessException e) {
throw new LegalSPITesterException("Warning, an exception is thrown due to the SPI test");
}
}
@SPITest
public void remappingFunctionGetsIterableWithMappedStoreEntryValueOrNull() throws Exception {
Set<K> inputKeys = new HashSet<K>();
final Map<K, V> mappedEntries = new HashMap<K, V>();
int nbElements = 10;
for (long i = 0; i < nbElements; i++) {
K k = factory.createKey(i);
V v = factory.createValue(i);
inputKeys.add(k);
if (i % 2 == 0) { // Half of the keys will have mapped store entries, others will have no mapping (null)
kvStore.put(k, v);
mappedEntries.put(k, v);
}
}
try {
kvStore.bulkCompute(inputKeys, new Function<Iterable<? extends Map.Entry<? extends K, ? extends V>>, Iterable<? extends Map.Entry<? extends K, ? extends V>>>() {
@Override
public Iterable<? extends Map.Entry<? extends K, ? extends V>> apply(Iterable<? extends Map.Entry<? extends K, ? extends V>> entries) {
Map<K, V> update = new HashMap<K, V>();
for (Map.Entry<? extends K, ? extends V> entry : entries) {
if (mappedEntries.containsKey(entry.getKey())) {
assertThat(entry.getValue(), is(mappedEntries.get(entry.getKey())));
} else {
assertThat(entry.getValue(), is(nullValue()));
}
update.put(entry.getKey(), entry.getValue());
}
return update.entrySet();
}
}
);
} catch (StoreAccessException e) {
throw new LegalSPITesterException("Warning, an exception is thrown due to the SPI test");
}
}
@SPITest
public void computeValuesForEveryKeyUsingARemappingFunction() throws Exception {
Set<K> inputKeys = new HashSet<K>();
final Map<K, V> computedEntries = new HashMap<K, V>();
int nbElements = 10;
for (long i = 0; i < nbElements; i++) {
K k = factory.createKey(i);
V v = factory.createValue(i);
inputKeys.add(k);
computedEntries.put(k, v);
}
try {
kvStore.bulkCompute(inputKeys, new Function<Iterable<? extends Map.Entry<? extends K, ? extends V>>, Iterable<? extends Map.Entry<? extends K, ? extends V>>>() {
@Override
public Iterable<? extends Map.Entry<? extends K, ? extends V>> apply(Iterable<? extends Map.Entry<? extends K, ? extends V>> entries) {
Map<K, V> update = new HashMap<K, V>();
for (Map.Entry<? extends K, ? extends V> entry : entries) {
update.put(entry.getKey(), computedEntries.get(entry.getKey()));
}
return update.entrySet();
}
});
for (K inputKey : inputKeys) {
assertThat(kvStore.get(inputKey).value(), is(computedEntries.get(inputKey)));
}
} catch (StoreAccessException e) {
throw new LegalSPITesterException("Warning, an exception is thrown due to the SPI test");
}
}
@SuppressWarnings({ "unchecked" })
@SPITest
public void remappingFunctionProducesWrongKeyType() throws Exception {
Set<K> inputKeys = new HashSet<K>();
final Map<K, V> computedEntries = new HashMap<K, V>();
int nbElements = 10;
for (long i = 0; i < nbElements; i++) {
K k = factory.createKey(i);
V v = factory.createValue(i);
inputKeys.add(k);
computedEntries.put(k, v);
}
try {
kvStore.bulkCompute(inputKeys, new Function<Iterable<? extends Map.Entry<? extends K, ? extends V>>, Iterable<? extends Map.Entry<? extends K, ? extends V>>>() {
@Override
public Iterable<? extends Map.Entry<? extends K, ? extends V>> apply(Iterable<? extends Map.Entry<? extends K, ? extends V>> entries) {
Map<K, V> update = new HashMap<K, V>();
for (Map.Entry<? extends K, ? extends V> entry : entries) {
if (factory.getKeyType() == String.class) {
update.put((K)new StringBuffer(entry.getKey().toString()), computedEntries.get(entry.getKey()));
} else {
update.put((K)entry.getKey().toString(), computedEntries.get(entry.getKey()));
}
}
return update.entrySet();
}
});
throw new AssertionError("Expected ClassCastException because the key is of the wrong type");
} catch (ClassCastException cce) {
//expected
} catch (StoreAccessException e) {
throw new LegalSPITesterException("Warning, an exception is thrown due to the SPI test");
}
}
@SuppressWarnings({ "unchecked" })
@SPITest
public void remappingFunctionProducesWrongValueType() throws Exception {
Set<K> inputKeys = new HashSet<K>();
final Map<K, V> computedEntries = new HashMap<K, V>();
int nbElements = 10;
for (long i = 0; i < nbElements; i++) {
K k = factory.createKey(i);
V v = factory.createValue(i);
inputKeys.add(k);
computedEntries.put(k, v);
}
try {
kvStore.bulkCompute(inputKeys, new Function<Iterable<? extends Map.Entry<? extends K, ? extends V>>, Iterable<? extends Map.Entry<? extends K, ? extends V>>>() {
@Override
public Iterable<? extends Map.Entry<? extends K, ? extends V>> apply(Iterable<? extends Map.Entry<? extends K, ? extends V>> entries) {
Map<K, V> update = new HashMap<K, V>();
for (Map.Entry<? extends K, ? extends V> entry : entries) {
if (factory.getKeyType() == String.class) {
update.put(entry.getKey(), (V)new StringBuffer(computedEntries.get(entry.getKey()).toString()));
} else {
update.put(entry.getKey(), (V)computedEntries.get(entry.getKey()).toString());
}
}
return update.entrySet();
}
});
throw new AssertionError("Expected ClassCastException because the value is of the wrong type");
} catch (ClassCastException cce) {
//expected
} catch (StoreAccessException e) {
throw new LegalSPITesterException("Warning, an exception is thrown due to the SPI test");
}
}
}