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Commit2859891

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Consumer: add custom deserializer product for kafka
1 parenta86a8da commit2859891

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4 files changed

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4 files changed

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/*
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* Copyright 2019 wuriyanto.com
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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packagecom.telkomdev.consumer.deserializer;
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importcom.google.gson.Gson;
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importcom.google.gson.GsonBuilder;
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publicclassJsonParser<T> {
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privatefinalGsongson =newGsonBuilder().setPrettyPrinting().create();
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privateTt;
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privateClass<T>clazz;
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publicJsonParser(Tt,Class<T>clazz) {
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this.t =t;
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this.clazz =clazz;
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}
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publicJsonParser(Class<T>clazz) {
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this.clazz =clazz;
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}
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publicbyte[]serialize() {
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returngson.toJson(t).getBytes();
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}
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publicTdeserialize(byte[]in) {
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returngson.fromJson(newString(in),clazz);
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}
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publicvoidsetEntity(Tt) {
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this.t =t;
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}
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}
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/*
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* Copyright 2019 wuriyanto.com
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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packagecom.telkomdev.consumer.deserializer;
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importcom.telkomdev.consumer.model.Product;
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importorg.apache.kafka.common.errors.SerializationException;
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importorg.apache.kafka.common.serialization.Deserializer;
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importjava.io.IOException;
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importjava.util.Map;
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publicclassProductAvroDeserializerimplementsDeserializer<Product> {
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publicProductAvroDeserializer() {
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}
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@Override
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publicvoidconfigure(Map<String, ?>configs,booleanisKey) {
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}
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@Override
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publicProductdeserialize(Strings,byte[]data) {
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try {
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returndata ==null ?null :Product.fromAvro(data);
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}catch (IOExceptione) {
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thrownewSerializationException("Error when serializing");
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}
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}
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@Override
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publicvoidclose() {
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}
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}
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/*
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* Copyright 2019 wuriyanto.com
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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packagecom.telkomdev.consumer.deserializer;
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importcom.telkomdev.consumer.model.Product;
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importorg.apache.kafka.common.serialization.Deserializer;
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importjava.util.Map;
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publicclassProductJsonDeserializerimplementsDeserializer<Product> {
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publicProductJsonDeserializer() {
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}
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@Override
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publicvoidconfigure(Map<String, ?>configs,booleanisKey) {
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}
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@Override
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publicProductdeserialize(Strings,byte[]data) {
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returndata ==null ?null :Product.fromJson(data);
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}
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@Override
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publicvoidclose() {
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}
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}
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/*
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* Copyright 2019 wuriyanto.com
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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packagecom.telkomdev.consumer.deserializer;
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importcom.google.protobuf.InvalidProtocolBufferException;
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importcom.telkomdev.consumer.model.Product;
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importorg.apache.kafka.common.errors.SerializationException;
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importorg.apache.kafka.common.serialization.Deserializer;
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importjava.util.Map;
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publicclassProductProtobufDeserializerimplementsDeserializer<Product> {
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publicProductProtobufDeserializer() {
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}
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@Override
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publicvoidconfigure(Map<String, ?>configs,booleanisKey) {
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}
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@Override
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publicProductdeserialize(Strings,byte[]data) {
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try {
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returndata ==null ?null :Product.fromProto(data);
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}catch (InvalidProtocolBufferExceptionex) {
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thrownewSerializationException("Error when serializing");
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}
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}
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@Override
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publicvoidclose() {
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}
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}

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