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| 1 | +/* |
| 2 | + * Copyright 2008-present MongoDB, Inc. |
| 3 | + * |
| 4 | + * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | + * you may not use this file except in compliance with the License. |
| 6 | + * You may obtain a copy of the License at |
| 7 | + * |
| 8 | + * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | + * |
| 10 | + * Unless required by applicable law or agreed to in writing, software |
| 11 | + * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | + * See the License for the specific language governing permissions and |
| 14 | + * limitations under the License. |
| 15 | + */ |
| 16 | +package org.bson.codecs.kotlinx.utils |
| 17 | + |
| 18 | +import kotlinx.serialization.ExperimentalSerializationApi |
| 19 | +import kotlinx.serialization.descriptors.SerialDescriptor |
| 20 | +import kotlinx.serialization.modules.SerializersModule |
| 21 | +import org.bson.AbstractBsonReader |
| 22 | +import org.bson.BsonWriter |
| 23 | +import org.bson.codecs.kotlinx.BsonArrayDecoder |
| 24 | +import org.bson.codecs.kotlinx.BsonConfiguration |
| 25 | +import org.bson.codecs.kotlinx.BsonDecoder |
| 26 | +import org.bson.codecs.kotlinx.BsonDecoderImpl |
| 27 | +import org.bson.codecs.kotlinx.BsonDocumentDecoder |
| 28 | +import org.bson.codecs.kotlinx.BsonEncoder |
| 29 | +import org.bson.codecs.kotlinx.BsonEncoderImpl |
| 30 | +import org.bson.codecs.kotlinx.BsonMapDecoder |
| 31 | +import org.bson.codecs.kotlinx.BsonPolymorphicDecoder |
| 32 | +import org.bson.codecs.kotlinx.JsonBsonArrayDecoder |
| 33 | +import org.bson.codecs.kotlinx.JsonBsonDecoderImpl |
| 34 | +import org.bson.codecs.kotlinx.JsonBsonDocumentDecoder |
| 35 | +import org.bson.codecs.kotlinx.JsonBsonEncoder |
| 36 | +import org.bson.codecs.kotlinx.JsonBsonMapDecoder |
| 37 | +import org.bson.codecs.kotlinx.JsonBsonPolymorphicDecoder |
| 38 | + |
| 39 | +@ExperimentalSerializationApi |
| 40 | +internal object BsonCodecUtils { |
| 41 | + |
| 42 | + @Suppress("SwallowedException") |
| 43 | + private val hasJsonEncoder: Boolean by lazy { |
| 44 | + try { |
| 45 | + Class.forName("kotlinx.serialization.json.JsonEncoder") |
| 46 | + true |
| 47 | + } catch (e: ClassNotFoundException) { |
| 48 | + false |
| 49 | + } |
| 50 | + } |
| 51 | + |
| 52 | + @Suppress("SwallowedException") |
| 53 | + private val hasJsonDecoder: Boolean by lazy { |
| 54 | + try { |
| 55 | + Class.forName("kotlinx.serialization.json.JsonDecoder") |
| 56 | + true |
| 57 | + } catch (e: ClassNotFoundException) { |
| 58 | + false |
| 59 | + } |
| 60 | + } |
| 61 | + |
| 62 | + internal fun createBsonEncoder( |
| 63 | + writer: BsonWriter, |
| 64 | + serializersModule: SerializersModule, |
| 65 | + configuration: BsonConfiguration |
| 66 | + ): BsonEncoder { |
| 67 | + return if (hasJsonEncoder) JsonBsonEncoder(writer, serializersModule, configuration) |
| 68 | + else BsonEncoderImpl(writer, serializersModule, configuration) |
| 69 | + } |
| 70 | + |
| 71 | + internal fun createBsonDecoder( |
| 72 | + reader: AbstractBsonReader, |
| 73 | + serializersModule: SerializersModule, |
| 74 | + configuration: BsonConfiguration |
| 75 | + ): BsonDecoder { |
| 76 | + return if (hasJsonDecoder) JsonBsonDecoderImpl(reader, serializersModule, configuration) |
| 77 | + else BsonDecoderImpl(reader, serializersModule, configuration) |
| 78 | + } |
| 79 | + |
| 80 | + internal fun createBsonArrayDecoder( |
| 81 | + descriptor: SerialDescriptor, |
| 82 | + reader: AbstractBsonReader, |
| 83 | + serializersModule: SerializersModule, |
| 84 | + configuration: BsonConfiguration |
| 85 | + ): BsonArrayDecoder { |
| 86 | + return if (hasJsonDecoder) JsonBsonArrayDecoder(descriptor, reader, serializersModule, configuration) |
| 87 | + else BsonArrayDecoder(descriptor, reader, serializersModule, configuration) |
| 88 | + } |
| 89 | + |
| 90 | + internal fun createBsonDocumentDecoder( |
| 91 | + descriptor: SerialDescriptor, |
| 92 | + reader: AbstractBsonReader, |
| 93 | + serializersModule: SerializersModule, |
| 94 | + configuration: BsonConfiguration |
| 95 | + ): BsonDocumentDecoder { |
| 96 | + return if (hasJsonDecoder) JsonBsonDocumentDecoder(descriptor, reader, serializersModule, configuration) |
| 97 | + else BsonDocumentDecoder(descriptor, reader, serializersModule, configuration) |
| 98 | + } |
| 99 | + |
| 100 | + internal fun createBsonPolymorphicDecoder( |
| 101 | + descriptor: SerialDescriptor, |
| 102 | + reader: AbstractBsonReader, |
| 103 | + serializersModule: SerializersModule, |
| 104 | + configuration: BsonConfiguration |
| 105 | + ): BsonPolymorphicDecoder { |
| 106 | + return if (hasJsonDecoder) JsonBsonPolymorphicDecoder(descriptor, reader, serializersModule, configuration) |
| 107 | + else BsonPolymorphicDecoder(descriptor, reader, serializersModule, configuration) |
| 108 | + } |
| 109 | + |
| 110 | + internal fun createBsonMapDecoder( |
| 111 | + descriptor: SerialDescriptor, |
| 112 | + reader: AbstractBsonReader, |
| 113 | + serializersModule: SerializersModule, |
| 114 | + configuration: BsonConfiguration |
| 115 | + ): BsonMapDecoder { |
| 116 | + return if (hasJsonDecoder) JsonBsonMapDecoder(descriptor, reader, serializersModule, configuration) |
| 117 | + else BsonMapDecoder(descriptor, reader, serializersModule, configuration) |
| 118 | + } |
| 119 | +} |
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