merge pull/2120

This commit is contained in:
agapple
2020-02-28 12:29:41 +08:00
parent 92f04f86cb
commit 18418ebd98
4 changed files with 129 additions and 12 deletions

View File

@@ -1,19 +1,134 @@
package com.google.common.collect;
import java.util.Collection;
import java.util.Map;
import java.util.Set;
import java.util.concurrent.ConcurrentMap;
import java.util.concurrent.ExecutionException;
import com.google.common.base.Function;
import com.google.common.cache.CacheBuilder;
import com.google.common.cache.CacheLoader;
import com.google.common.cache.LoadingCache;
public class MigrateMap {
@SuppressWarnings("deprecation")
public static <K, V> ConcurrentMap<K, V> makeComputingMap(MapMaker maker,
public static <K, V> ConcurrentMap<K, V> makeComputingMap(CacheBuilder<Object, Object> builder,
Function<? super K, ? extends V> computingFunction) {
return maker.makeComputingMap(computingFunction);
final Function<? super K, ? extends V> function = computingFunction;
LoadingCache<K, V> computingCache = builder.build(new CacheLoader<K, V>() {
@Override
public V load(K key) throws Exception {
return function.apply(key);
}
});
return new MigrateConcurrentMap<K, V>(computingCache);
}
@SuppressWarnings("deprecation")
public static <K, V> ConcurrentMap<K, V> makeComputingMap(Function<? super K, ? extends V> computingFunction) {
return new MapMaker().makeComputingMap(computingFunction);
return makeComputingMap(CacheBuilder.newBuilder(), computingFunction);
}
final static class MigrateConcurrentMap<K, V> implements ConcurrentMap<K, V> {
private final LoadingCache<K, V> computingCache;
private final ConcurrentMap<K, V> cacheView;
MigrateConcurrentMap(LoadingCache<K, V> computingCache){
this.computingCache = computingCache;
this.cacheView = computingCache.asMap();
}
@Override
public int size() {
return cacheView.size();
}
@Override
public boolean isEmpty() {
return cacheView.isEmpty();
}
@Override
public boolean containsKey(Object key) {
return cacheView.containsKey(key);
}
@Override
public boolean containsValue(Object value) {
return cacheView.containsValue(value);
}
@Override
public V get(Object key) {
try {
return computingCache.get((K) key);
} catch (ExecutionException e) {
throw new RuntimeException(e);
}
}
@Override
public V put(K key, V value) {
return cacheView.put(key, value);
}
@Override
public V remove(Object key) {
return cacheView.remove(key);
}
@Override
public void putAll(Map<? extends K, ? extends V> m) {
cacheView.putAll(m);
}
@Override
public void clear() {
cacheView.clear();
}
@Override
public Set<K> keySet() {
return cacheView.keySet();
}
@Override
public Collection<V> values() {
return cacheView.values();
}
@Override
public Set<Entry<K, V>> entrySet() {
return cacheView.entrySet();
}
@Override
public V putIfAbsent(K key, V value) {
return cacheView.putIfAbsent(key, value);
}
@Override
public boolean remove(Object key, Object value) {
return cacheView.remove(key, value);
}
@Override
public boolean replace(K key, V oldValue, V newValue) {
return cacheView.replace(key, oldValue, newValue);
}
@Override
public V replace(K key, V value) {
return cacheView.replace(key, value);
}
@Override
public String toString() {
return cacheView.toString();
}
}
}

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@@ -7,13 +7,13 @@ import org.apache.oro.text.regex.Pattern;
import org.apache.oro.text.regex.PatternCompiler;
import org.apache.oro.text.regex.Perl5Compiler;
import com.google.common.collect.MapMaker;
import com.google.common.cache.CacheBuilder;
import com.google.common.collect.MigrateMap;
public class PatternUtils {
@SuppressWarnings("deprecation")
private static Map<String, Pattern> patterns = MigrateMap.makeComputingMap(new MapMaker().softValues(),
private static Map<String, Pattern> patterns = MigrateMap.makeComputingMap(CacheBuilder.newBuilder().softValues(),
pattern -> {
try {
PatternCompiler pc = new Perl5Compiler();

View File

@@ -20,8 +20,8 @@ import com.alibaba.otter.canal.protocol.CanalEntry.RowChange;
import com.alibaba.otter.canal.protocol.FlatMessage;
import com.alibaba.otter.canal.protocol.Message;
import com.google.common.base.Function;
import com.google.common.cache.CacheBuilder;
import com.google.common.collect.Lists;
import com.google.common.collect.MapMaker;
import com.google.common.collect.MigrateMap;
import com.google.protobuf.ByteString;
import com.google.protobuf.InvalidProtocolBufferException;
@@ -35,7 +35,8 @@ import com.google.protobuf.InvalidProtocolBufferException;
public class MQMessageUtils {
@SuppressWarnings("deprecation")
private static Map<String, List<PartitionData>> partitionDatas = MigrateMap.makeComputingMap(new MapMaker().softValues(),
private static Map<String, List<PartitionData>> partitionDatas = MigrateMap.makeComputingMap(CacheBuilder.newBuilder()
.softValues(),
pkHashConfigs -> {
List<PartitionData> datas = Lists.newArrayList();
@@ -74,7 +75,8 @@ public class MQMessageUtils {
});
@SuppressWarnings("deprecation")
private static Map<String, List<DynamicTopicData>> dynamicTopicDatas = MigrateMap.makeComputingMap(new MapMaker().softValues(),
private static Map<String, List<DynamicTopicData>> dynamicTopicDatas = MigrateMap.makeComputingMap(CacheBuilder.newBuilder()
.softValues(),
new Function<String, List<DynamicTopicData>>() {
public List<DynamicTopicData> apply(String pkHashConfigs) {

View File

@@ -8,13 +8,13 @@ import org.apache.oro.text.regex.PatternCompiler;
import org.apache.oro.text.regex.Perl5Compiler;
import com.google.common.base.Function;
import com.google.common.collect.MapMaker;
import com.google.common.cache.CacheBuilder;
import com.google.common.collect.MigrateMap;
public class PatternUtils {
@SuppressWarnings("deprecation")
private static Map<String, Pattern> patterns = MigrateMap.makeComputingMap(new MapMaker().softValues(),
private static Map<String, Pattern> patterns = MigrateMap.makeComputingMap(CacheBuilder.newBuilder().softValues(),
new Function<String, Pattern>() {
public Pattern apply(String pattern) {