109 lines
3.8 KiB
Java
109 lines
3.8 KiB
Java
// Protocol Buffers - Google's data interchange format
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// Copyright 2008 Google Inc. All rights reserved.
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// https://developers.google.com/protocol-buffers/
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//
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are
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// met:
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//
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// * Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above
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// copyright notice, this list of conditions and the following disclaimer
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// in the documentation and/or other materials provided with the
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// distribution.
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// * Neither the name of Google Inc. nor the names of its
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// contributors may be used to endorse or promote products derived from
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// this software without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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package com.google.protobuf;
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import com.google.protobuf.MapEntryLite.Metadata;
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import java.util.Map;
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@CheckReturnValue
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class MapFieldSchemaLite implements MapFieldSchema {
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@Override
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public Map<?, ?> forMutableMapData(Object mapField) {
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return (MapFieldLite<?, ?>) mapField;
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}
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@Override
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public Metadata<?, ?> forMapMetadata(Object mapDefaultEntry) {
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return ((MapEntryLite<?, ?>) mapDefaultEntry).getMetadata();
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}
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@Override
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public Map<?, ?> forMapData(Object mapField) {
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return (MapFieldLite<?, ?>) mapField;
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}
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@Override
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public boolean isImmutable(Object mapField) {
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return !((MapFieldLite<?, ?>) mapField).isMutable();
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}
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@Override
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public Object toImmutable(Object mapField) {
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((MapFieldLite<?, ?>) mapField).makeImmutable();
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return mapField;
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}
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@Override
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public Object newMapField(Object unused) {
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return MapFieldLite.emptyMapField().mutableCopy();
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}
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@Override
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public Object mergeFrom(Object destMapField, Object srcMapField) {
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return mergeFromLite(destMapField, srcMapField);
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}
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@SuppressWarnings("unchecked")
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private static <K, V> MapFieldLite<K, V> mergeFromLite(Object destMapField, Object srcMapField) {
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MapFieldLite<K, V> mine = (MapFieldLite<K, V>) destMapField;
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MapFieldLite<K, V> other = (MapFieldLite<K, V>) srcMapField;
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if (!other.isEmpty()) {
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if (!mine.isMutable()) {
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mine = mine.mutableCopy();
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}
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mine.mergeFrom(other);
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}
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return mine;
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}
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@Override
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public int getSerializedSize(int fieldNumber, Object mapField, Object mapDefaultEntry) {
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return getSerializedSizeLite(fieldNumber, mapField, mapDefaultEntry);
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}
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@SuppressWarnings("unchecked")
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private static <K, V> int getSerializedSizeLite(
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int fieldNumber, Object mapField, Object defaultEntry) {
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MapFieldLite<K, V> mapFieldLite = (MapFieldLite<K, V>) mapField;
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MapEntryLite<K, V> defaultEntryLite = (MapEntryLite<K, V>) defaultEntry;
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if (mapFieldLite.isEmpty()) {
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return 0;
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}
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int size = 0;
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for (Map.Entry<K, V> entry : mapFieldLite.entrySet()) {
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size += defaultEntryLite.computeMessageSize(fieldNumber, entry.getKey(), entry.getValue());
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}
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return size;
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}
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}
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