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/*
* Copyright 2013, Google Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following disclaimer
* in the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Google Inc. nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package org.jf.dexlib2.writer.builder;
import com.google.common.collect.Maps;
import org.jf.dexlib2.writer.DexWriter;
import org.jf.dexlib2.writer.TypeSection;
import javax.annotation.Nonnull;
import javax.annotation.Nullable;
import java.util.Collection;
import java.util.Map.Entry;
import java.util.concurrent.ConcurrentMap;
class BuilderTypePool extends BaseBuilderPool
implements TypeSection<BuilderStringReference, BuilderTypeReference, BuilderTypeReference> {
@Nonnull private final ConcurrentMap<String, BuilderTypeReference> internedItems = Maps.newConcurrentMap();
public BuilderTypePool(@Nonnull DexBuilder dexBuilder) {
super(dexBuilder);
}
@Nonnull public BuilderTypeReference internType(@Nonnull String type) {
BuilderTypeReference ret = internedItems.get(type);
if (ret != null) {
return ret;
}
BuilderStringReference stringRef = dexBuilder.stringSection.internString(type);
BuilderTypeReference typeReference = new BuilderTypeReference(stringRef);
ret = internedItems.putIfAbsent(type, typeReference);
return ret==null?typeReference:ret;
}
@Nullable public BuilderTypeReference internNullableType(@Nullable String type) {
if (type == null) {
return null;
}
return internType(type);
}
@Nonnull @Override public BuilderStringReference getString(@Nonnull BuilderTypeReference key) {
return key.stringReference;
}
@Override public int getNullableItemIndex(@Nullable BuilderTypeReference key) {
return key==null?DexWriter.NO_INDEX:key.index;
}
@Override public int getItemIndex(@Nonnull BuilderTypeReference key) {
return key.getIndex();
}
@Nonnull @Override public Collection<? extends Entry<? extends BuilderTypeReference, Integer>> getItems() {
return new BuilderMapEntryCollection<BuilderTypeReference>(internedItems.values()) {
@Override protected int getValue(@Nonnull BuilderTypeReference key) {
return key.index;
}
@Override protected int setValue(@Nonnull BuilderTypeReference key, int value) {
int prev = key.index;
key.index = value;
return prev;
}
};
}
@Override public int getItemCount() {
return internedItems.size();
}
}
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