com.google.protobuf.MapFieldSchemaLite Maven / Gradle / Ivy
// Protocol Buffers - Google's data interchange format
// Copyright 2008 Google Inc. All rights reserved.
// https://developers.google.com/protocol-buffers/
//
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//
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// in the documentation and/or other materials provided with the
// distribution.
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// this software without specific prior written permission.
//
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package com.google.protobuf;
import com.google.protobuf.MapEntryLite.Metadata;
import java.util.Map;
@CheckReturnValue
class MapFieldSchemaLite implements MapFieldSchema {
@Override
public Map forMutableMapData(Object mapField) {
return (MapFieldLite) mapField;
}
@Override
public Metadata forMapMetadata(Object mapDefaultEntry) {
return ((MapEntryLite) mapDefaultEntry).getMetadata();
}
@Override
public Map forMapData(Object mapField) {
return (MapFieldLite) mapField;
}
@Override
public boolean isImmutable(Object mapField) {
return !((MapFieldLite) mapField).isMutable();
}
@Override
public Object toImmutable(Object mapField) {
((MapFieldLite) mapField).makeImmutable();
return mapField;
}
@Override
public Object newMapField(Object unused) {
return MapFieldLite.emptyMapField().mutableCopy();
}
@Override
public Object mergeFrom(Object destMapField, Object srcMapField) {
return mergeFromLite(destMapField, srcMapField);
}
@SuppressWarnings("unchecked")
private static MapFieldLite mergeFromLite(Object destMapField, Object srcMapField) {
MapFieldLite mine = (MapFieldLite) destMapField;
MapFieldLite other = (MapFieldLite) srcMapField;
if (!other.isEmpty()) {
if (!mine.isMutable()) {
mine = mine.mutableCopy();
}
mine.mergeFrom(other);
}
return mine;
}
@Override
public int getSerializedSize(int fieldNumber, Object mapField, Object mapDefaultEntry) {
return getSerializedSizeLite(fieldNumber, mapField, mapDefaultEntry);
}
@SuppressWarnings("unchecked")
private static int getSerializedSizeLite(
int fieldNumber, Object mapField, Object defaultEntry) {
MapFieldLite mapFieldLite = (MapFieldLite) mapField;
MapEntryLite defaultEntryLite = (MapEntryLite) defaultEntry;
if (mapFieldLite.isEmpty()) {
return 0;
}
int size = 0;
for (Map.Entry entry : mapFieldLite.entrySet()) {
size += defaultEntryLite.computeMessageSize(fieldNumber, entry.getKey(), entry.getValue());
}
return size;
}
}