112 lines
3.5 KiB
Java
112 lines
3.5 KiB
Java
/*
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* Copyright (c) 2017 Touch Instinct
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*
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* This file is part of RoboSwag library.
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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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*/
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package ru.touchin.templates.retrofit;
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import android.support.annotation.NonNull;
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import java.io.IOException;
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import java.io.InterruptedIOException;
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import java.net.SocketException;
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import java.util.Collection;
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import java.util.Map;
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import javax.net.ssl.SSLException;
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import okhttp3.ResponseBody;
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import okhttp3.internal.http2.StreamResetException;
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import retrofit2.Converter;
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import ru.touchin.roboswag.core.log.Lc;
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import ru.touchin.templates.ApiModel;
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/**
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* Created by Gavriil Sitnikov on 14/02/2017.
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* Object to deserialize responses of remote requests from Retrofit.
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*
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* @param <T> Type of response object.
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*/
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public abstract class JsonResponseBodyConverter<T> implements Converter<ResponseBody, T> {
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@SuppressWarnings("PMD.AvoidInstanceofChecksInCatchClause")
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//AvoidInstanceofChecksInCatchClause: we just don't need assertion on specific exceptions
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@NonNull
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@Override
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public T convert(@NonNull final ResponseBody value) throws IOException {
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final T result;
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try {
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result = parseResponse(value);
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} catch (final IOException exception) {
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if (!(exception instanceof SocketException)
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&& !(exception instanceof InterruptedIOException)
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&& !(exception instanceof SSLException)
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&& !(exception instanceof StreamResetException)) {
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Lc.assertion(exception);
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}
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throw exception;
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} finally {
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value.close();
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}
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if (result instanceof ApiModel) {
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validateModel((ApiModel) result);
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}
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if (result instanceof Collection) {
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validateCollection((Collection) result);
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}
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if (result instanceof Map) {
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validateCollection(((Map) result).values());
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}
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return result;
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}
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private void validateModel(@NonNull final ApiModel result) throws IOException {
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try {
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result.validate();
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} catch (final ApiModel.ValidationException validationException) {
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Lc.assertion(validationException);
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throw validationException;
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}
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}
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private void validateCollection(@NonNull final Collection result) throws IOException {
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try {
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ApiModel.validateCollection(result, getValidateCollectionRule());
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} catch (final ApiModel.ValidationException validationException) {
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Lc.assertion(validationException);
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throw validationException;
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}
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}
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@NonNull
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protected ApiModel.CollectionValidationRule getValidateCollectionRule() {
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return ApiModel.CollectionValidationRule.EXCEPTION_IF_ANY_INVALID;
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}
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/**
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* Parses response to specific object.
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*
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* @param value Response to parse;
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* @return Parsed object;
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* @throws IOException Throws during parsing.
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*/
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@NonNull
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protected abstract T parseResponse(@NonNull ResponseBody value) throws IOException;
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} |