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Qiniu Cloud Storage SDK for Java
package com.qiniu.http;
import com.qiniu.common.Constants;
import com.qiniu.common.QiniuException;
import com.qiniu.util.Json;
import com.qiniu.util.StringMap;
import com.qiniu.util.StringUtils;
import okhttp3.MediaType;
import okhttp3.Request;
import java.io.IOException;
import java.io.InputStream;
import java.util.Locale;
/**
* 定义HTTP请求的日志信息和常规方法
*/
public final class Response {
public static final int InvalidArgument = -4;
public static final int InvalidFile = -3;
public static final int Cancelled = -2;
public static final int NetworkError = -1;
/**
* 请求方法
*/
public final String method;
/**
* 回复状态码
*/
public final int statusCode;
/**
* 七牛日志扩展头
*/
public final String reqId;
/**
* 七牛日志扩展头
*/
public final String xlog;
/**
* cdn日志扩展头
*/
public final String xvia;
/**
* 错误信息
*/
public final String error;
/**
* 请求消耗时间，单位秒
*/
public final double duration;
/**
* 服务器IP
*/
public final String address;
private byte[] body;
private okhttp3.Response response;
private Response(okhttp3.Response response, int statusCode, String reqId, String xlog, String xvia,
String address, double duration, String error, byte[] body) {
this.response = response;
this.statusCode = statusCode;
this.reqId = reqId;
this.xlog = xlog;
this.xvia = xvia;
this.duration = duration;
this.error = error;
this.address = address;
this.body = body;
this.method = getMethod(response);
}
private String getMethod(okhttp3.Response response) {
String method = null;
if (response != null) {
Request req = response.request();
if (req != null) {
method = req.method();
}
}
if (method == null) {
method = "";
}
return method;
}
public static Response create(okhttp3.Response response, String address, double duration) {
String error = null;
int code = response.code();
String reqId = null;
reqId = response.header("X-Reqid");
reqId = (reqId == null) ? null : reqId.trim();
byte[] body = null;
if (ctype(response).equals(Client.JsonMime)) {
try {
body = response.body().bytes();
if (response.code() >= 400 && !StringUtils.isNullOrEmpty(reqId) && body != null) {
ErrorBody errorBody = Json.decode(new String(body, Constants.UTF_8), ErrorBody.class);
error = errorBody.error;
}
} catch (Exception e) {
if (response.code() < 300) {
error = e.getMessage();
}
}
} else if (response.body() != null) {
// 处理其他 body 非预期情况
if (response.code() >= 300) {
try {
body = response.body().bytes();
error = new String(body, Constants.UTF_8);
} catch (Exception e) {
error = e.getMessage();
}
}
}
return new Response(response, code, reqId, response.header("X-Log"), via(response),
address, duration, error, body);
}
public static Response createError(okhttp3.Response response, String address, double duration, String error) {
if (response == null) {
return new Response(null, -1, "", "", "", "", duration, error, null);
}
int code = response.code();
String reqId = null;
reqId = response.header("X-Reqid");
reqId = (reqId == null) ? null : reqId.trim();
byte[] body = null;
if (ctype(response).equals(Client.JsonMime)) {
try {
body = response.body().bytes();
if (response.code() >= 400 && !StringUtils.isNullOrEmpty(reqId) && body != null) {
ErrorBody errorBody = Json.decode(new String(body, Constants.UTF_8), ErrorBody.class);
error = errorBody.error;
}
} catch (Exception e) {
if (response.code() < 300) {
error = e.getMessage();
}
}
}
return new Response(response, code, reqId, response.header("X-Log"), via(response),
address, duration, error, body);
}
public okhttp3.Response getResponse() {
return response;
}
public static Response createSuccessResponse() {
return new Response(null, 200, "inter:reqId", null, "inter:via",
null, 0, null, new byte[0]);
}
private static String via(okhttp3.Response response) {
String via;
if (!(via = response.header("X-Via", "")).equals("")) {
return via;
}
if (!(via = response.header("X-Px", "")).equals("")) {
return via;
}
if (!(via = response.header("Fw-Via", "")).equals("")) {
return via;
}
return via;
}
private static String ctype(okhttp3.Response response) {
MediaType mediaType = response.body().contentType();
if (mediaType == null) {
return "";
}
return mediaType.type() + "/" + mediaType.subtype();
}
public boolean isOK() {
return statusCode == 200 && error == null && reqId != null && reqId.length() > 0;
}
public boolean isNetworkBroken() {
return statusCode == NetworkError;
}
public boolean isServerError() {
return (statusCode >= 500 && statusCode < 600 && statusCode != 579) || statusCode == 996;
}
public boolean isContextExpiredError() {
return statusCode == 701 || (statusCode == 612 && error.contains("no such uploadId"));
}
public boolean needSwitchServer() {
return isNetworkBroken() || (statusCode >= 500 && statusCode < 600 && statusCode != 579);
}
public boolean needRetry() {
return isNetworkBroken() || isServerError() || statusCode == 406 || (statusCode == 200 && error != null);
}
public String toString() {
return String.format(Locale.ENGLISH,
"{ResponseInfo:%s,status:%d, reqId:%s, xlog:%s, xvia:%s, adress:%s, duration:%f s, error:%s}",
super.toString(), statusCode, reqId, xlog, xvia, address, duration, error);
}
public T jsonToObject(Class classOfT) throws QiniuException {
if (!isJson()) {
return null;
}
String b = bodyString();
return Json.decode(b, classOfT);
}
public StringMap jsonToMap() throws QiniuException {
if (!isJson()) {
return null;
}
return Json.decode(bodyString());
}
public Object[] jsonToArray() throws QiniuException {
if (!isJson()) {
return null;
}
return Json.decodeArray(bodyString());
}
public synchronized byte[] body() throws QiniuException {
if (body != null) {
return body;
}
try {
this.body = response.body().bytes();
} catch (IOException e) {
throw new QiniuException(e);
}
return body;
}
public String bodyString() throws QiniuException {
return StringUtils.utf8String(body());
}
public synchronized InputStream bodyStream() throws QiniuException {
if (this.response == null) {
return null;
}
return this.response.body().byteStream();
}
public synchronized void close() {
if (this.response != null && this.response.body() != null) {
this.response.close();
}
}
public String contentType() {
return ctype(response);
}
public String header(String name, String defaultValue) {
return response.header(name, defaultValue);
}
public boolean isJson() {
return contentType().equals(Client.JsonMime);
}
public String url() {
return response.request().url().toString();
}
public String getInfo() {
String[] msg = new String[3];
try {
msg[0] = this.method;
msg[0] += (" " + url());
} catch (Throwable t) {
}
try {
msg[1] = toString();
} catch (Throwable t) {
}
try {
msg[2] = bodyString();
} catch (Throwable t) {
}
return StringUtils.join(msg, " \n");
}
public static class ErrorBody {
public String error;
}
}
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