Java tutorial
/* * The MIT License (MIT) * * Copyright (c) 2016 Fouad Almalki * * Permission is hereby granted, free of charge, to any person obtaining a copy * of this software and associated documentation files (the "Software"), to deal * in the Software without restriction, including without limitation the rights * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell * copies of the Software, and to permit persons to whom the Software is * furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in all * copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE * SOFTWARE. */ package io.fouad.jtb.core.exceptions; import com.fasterxml.jackson.core.type.TypeReference; import io.fouad.jtb.core.beans.TelegramResult; import io.fouad.jtb.core.utils.JsonUtils; import java.io.IOException; /** * This exception represents the negative (non-OK) response of a Telegram API request. */ public class NegativeResponseException extends Exception { private static class Wrapper { private TelegramResult<?> telegramResult; private String message; public Wrapper(TelegramResult<?> telegramResult, String message) { this.telegramResult = telegramResult; this.message = message; } } private int httpResponseCode; private Integer errorCode; private String description; private NegativeResponseException(int httpResponseCode, Wrapper wrapper) { super(wrapper.message); this.httpResponseCode = httpResponseCode; TelegramResult<?> telegramResult = wrapper.telegramResult; if (telegramResult != null) this.errorCode = telegramResult.getErrorCode(); if (telegramResult != null) this.description = telegramResult.getDescription(); } public NegativeResponseException(int httpResponseCode, String response) { this(httpResponseCode, buildWrapper(response)); } public NegativeResponseException(int httpResponseCode, TelegramResult<?> telegramResult) { this(httpResponseCode, buildWrapper(telegramResult)); } public int getHttpResponseCode() { return httpResponseCode; } public Integer getErrorCode() { return errorCode; } public String getDescription() { return description; } @Override public boolean equals(Object o) { if (this == o) return true; if (o == null || getClass() != o.getClass()) return false; NegativeResponseException that = (NegativeResponseException) o; if (httpResponseCode != that.httpResponseCode) return false; if (errorCode != null ? !errorCode.equals(that.errorCode) : that.errorCode != null) return false; return description != null ? description.equals(that.description) : that.description == null; } @Override public int hashCode() { int result = httpResponseCode; result = 31 * result + (errorCode != null ? errorCode.hashCode() : 0); result = 31 * result + (description != null ? description.hashCode() : 0); return result; } @Override public String toString() { return "NegativeResponseException{" + "httpResponseCode=" + httpResponseCode + ", errorCode=" + errorCode + ", description='" + description + '\'' + "} " + super.toString(); } private static Wrapper buildWrapper(String response) { String message = null; TelegramResult<Void> telegramResult = null; try { telegramResult = JsonUtils.toJavaObject(response, new TypeReference<TelegramResult<Void>>() { }); Integer errorCode = telegramResult.getErrorCode(); String description = telegramResult.getDescription(); message = "Error Code = " + errorCode + " | Description = " + description; } catch (IOException e) { e.printStackTrace(); } return new Wrapper(telegramResult, message); } private static Wrapper buildWrapper(TelegramResult<?> telegramResult) { Integer errorCode = telegramResult.getErrorCode(); String description = telegramResult.getDescription(); String message = "Error Code = " + errorCode + " | Description = " + description; return new Wrapper(telegramResult, message); } }