/*
* Copyright 2010-2015 JetBrains s.r.o.
*
* 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.jetbrains.kotlin.util.slicedMap;
import com.google.common.collect.ArrayListMultimap;
import com.google.common.collect.ImmutableMap;
import com.google.common.collect.Multimap;
import com.intellij.openapi.util.Key;
import com.intellij.util.keyFMap.KeyFMap;
import gnu.trove.THashMap;
import kotlin.jvm.functions.Function3;
import org.jetbrains.annotations.NotNull;
import java.util.Collection;
import java.util.Collections;
import java.util.Map;
public class SlicedMapImpl implements MutableSlicedMap {
public static SlicedMapImpl create() {
return new SlicedMapImpl();
}
private final Map<Object, KeyFMap> map = new THashMap<>(0);
private Multimap<WritableSlice<?, ?>, Object> collectiveSliceKeys = null;
@Override
public <K, V> void put(WritableSlice<K, V> slice, K key, V value) {
if (!slice.check(key, value)) {
return;
}
KeyFMap holder = map.get(key);
if (holder == null) {
holder = KeyFMap.EMPTY_MAP;
}
Key<V> sliceKey = slice.getKey();
RewritePolicy rewritePolicy = slice.getRewritePolicy();
if (rewritePolicy.rewriteProcessingNeeded(key)) {
V oldValue = holder.get(sliceKey);
if (oldValue != null) {
//noinspection unchecked
if (!rewritePolicy.processRewrite(slice, key, oldValue, value)) {
return;
}
}
}
if (slice.isCollective()) {
if (collectiveSliceKeys == null) {
collectiveSliceKeys = ArrayListMultimap.create();
}
collectiveSliceKeys.put(slice, key);
}
map.put(key, holder.plus(sliceKey, value));
slice.afterPut(this, key, value);
}
@Override
public void clear() {
map.clear();
collectiveSliceKeys = null;
}
@Override
public <K, V> V get(ReadOnlySlice<K, V> slice, K key) {
KeyFMap holder = map.get(key);
V value = holder == null ? null : holder.get(slice.getKey());
return slice.computeValue(this, key, value, value == null);
}
@Override
@SuppressWarnings("unchecked")
public <K, V> Collection<K> getKeys(WritableSlice<K, V> slice) {
assert slice.isCollective() : "Keys are not collected for slice " + slice;
if (collectiveSliceKeys == null) return Collections.emptyList();
return (Collection<K>) collectiveSliceKeys.get(slice);
}
@Override
public void forEach(@NotNull Function3<WritableSlice, Object, Object, Void> f) {
for (Map.Entry<Object, KeyFMap> entry : map.entrySet()) {
Object key = entry.getKey();
KeyFMap holder = entry.getValue();
if (holder == null) continue;
for (Key<?> sliceKey : holder.getKeys()) {
Object value = holder.get(sliceKey);
f.invoke(((AbstractWritableSlice) sliceKey).getSlice(), key, value);
}
}
}
@NotNull
@Override
public <K, V> ImmutableMap<K, V> getSliceContents(@NotNull ReadOnlySlice<K, V> slice) {
ImmutableMap.Builder<K, V> builder = ImmutableMap.builder();
for (Map.Entry<Object, KeyFMap> entry : map.entrySet()) {
KeyFMap holder = entry.getValue();
V value = holder.get(slice.getKey());
if (value != null) {
//noinspection unchecked
builder.put((K) entry.getKey(), value);
}
}
return builder.build();
}
}