1 // Protocol Buffers - Google's data interchange format 2 // Copyright 2008 Google Inc. All rights reserved. 3 // https://developers.google.com/protocol-buffers/ 4 // 5 // Redistribution and use in source and binary forms, with or without 6 // modification, are permitted provided that the following conditions are 7 // met: 8 // 9 // * Redistributions of source code must retain the above copyright 10 // notice, this list of conditions and the following disclaimer. 11 // * Redistributions in binary form must reproduce the above 12 // copyright notice, this list of conditions and the following disclaimer 13 // in the documentation and/or other materials provided with the 14 // distribution. 15 // * Neither the name of Google Inc. nor the names of its 16 // contributors may be used to endorse or promote products derived from 17 // this software without specific prior written permission. 18 // 19 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 20 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 21 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 22 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 23 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 24 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 25 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 26 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 27 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 28 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 29 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 30 31 package com.google.protobuf; 32 33 import com.google.protobuf.MapEntryLite.Metadata; 34 import java.util.Map; 35 36 class MapFieldSchemaFull implements MapFieldSchema { 37 @Override forMutableMapData(Object mapField)38 public Map<?, ?> forMutableMapData(Object mapField) { 39 return ((MapField<?, ?>) mapField).getMutableMap(); 40 } 41 42 @Override forMapData(Object mapField)43 public Map<?, ?> forMapData(Object mapField) { 44 return ((MapField<?, ?>) mapField).getMap(); 45 } 46 47 @Override isImmutable(Object mapField)48 public boolean isImmutable(Object mapField) { 49 return !((MapField<?, ?>) mapField).isMutable(); 50 } 51 52 @Override toImmutable(Object mapField)53 public Object toImmutable(Object mapField) { 54 ((MapField<?, ?>) mapField).makeImmutable(); 55 return mapField; 56 } 57 58 @Override newMapField(Object mapDefaultEntry)59 public Object newMapField(Object mapDefaultEntry) { 60 return MapField.newMapField((MapEntry<?, ?>) mapDefaultEntry); 61 } 62 63 @Override forMapMetadata(Object mapDefaultEntry)64 public Metadata<?, ?> forMapMetadata(Object mapDefaultEntry) { 65 return ((MapEntry<?, ?>) mapDefaultEntry).getMetadata(); 66 } 67 68 @Override mergeFrom(Object destMapField, Object srcMapField)69 public Object mergeFrom(Object destMapField, Object srcMapField) { 70 return mergeFromFull(destMapField, srcMapField); 71 } 72 73 @SuppressWarnings("unchecked") mergeFromFull(Object destMapField, Object srcMapField)74 private static <K, V> Object mergeFromFull(Object destMapField, Object srcMapField) { 75 MapField<K, V> mine = (MapField<K, V>) destMapField; 76 MapField<K, V> other = (MapField<K, V>) srcMapField; 77 if (!mine.isMutable()) { 78 mine.copy(); 79 } 80 mine.mergeFrom(other); 81 return mine; 82 } 83 84 @Override getSerializedSize(int number, Object mapField, Object mapDefaultEntry)85 public int getSerializedSize(int number, Object mapField, Object mapDefaultEntry) { 86 return getSerializedSizeFull(number, mapField, mapDefaultEntry); 87 } 88 89 @SuppressWarnings("unchecked") getSerializedSizeFull( int number, Object mapField, Object defaultEntryObject)90 private static <K, V> int getSerializedSizeFull( 91 int number, Object mapField, Object defaultEntryObject) { 92 // Full runtime allocates map fields lazily. 93 if (mapField == null) { 94 return 0; 95 } 96 97 Map<K, V> map = ((MapField<K, V>) mapField).getMap(); 98 MapEntry<K, V> defaultEntry = (MapEntry<K, V>) defaultEntryObject; 99 if (map.isEmpty()) { 100 return 0; 101 } 102 int size = 0; 103 for (Map.Entry<K, V> entry : map.entrySet()) { 104 size += 105 CodedOutputStream.computeTagSize(number) 106 + CodedOutputStream.computeLengthDelimitedFieldSize( 107 MapEntryLite.computeSerializedSize( 108 defaultEntry.getMetadata(), entry.getKey(), entry.getValue())); 109 } 110 return size; 111 } 112 } 113