APIJSON/APIJSONORM/src/main/java/apijson/orm/AbstractParser.java at d748641814ccfe340597239f81927aba2bfc35d4 · APIJSON/APIJSON

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This source code is licensed under the Apache License Version 2.0.*/

package apijson.orm;

import com.alibaba.fastjson.JSONArray;

import com.alibaba.fastjson.JSONObject;

import java.io.UnsupportedEncodingException;

import java.lang.management.ManagementFactory;

import java.net.InetAddress;

import java.net.URLEncoder;

import java.sql.Connection;

import java.sql.SQLException;

import java.sql.Savepoint;

import java.util.*;

import java.util.Map.Entry;

import javax.management.MBeanServer;

import javax.management.ObjectName;

import javax.management.Query;

import apijson.JSON;

import apijson.JSONRequest;

import apijson.JSONResponse;

import apijson.Log;

import apijson.NotNull;

import apijson.RequestMethod;

import apijson.StringUtil;

import apijson.orm.exception.CommonException;

import apijson.orm.exception.UnsupportedDataTypeException;

import static apijson.JSONObject.KEY_COMBINE;

import static apijson.JSONObject.KEY_EXPLAIN;

import static apijson.RequestMethod.CRUD;

import static apijson.RequestMethod.GET;

/**parser for parsing request to JSONObject

* @author Lemon

public abstract class AbstractParser<T extends Object> implements Parser<T>, ParserCreator<T>, VerifierCreator<T>, SQLCreator {

protected static final String TAG = "AbstractParser";

/**

* JSON 对象、数组对应的数据源、版本、角色、method等

protected Map<Object, Map<String, Object>> keyObjectAttributesMap = new HashMap<>();

/**

* 可以通过切换该变量来控制是否打印关键的接口请求内容。保守起见，该值默认为false。

* 与 {@link Log#DEBUG} 任何一个为 true 都会打印关键的接口请求内容。

public static boolean IS_PRINT_REQUEST_STRING_LOG = false;

/**

* 打印大数据量日志的标识。线上环境比较敏感，可以通过切换该变量来控制异常栈抛出、错误日志打印。保守起见，该值默认为false。

* 与 {@link Log#DEBUG} 任何一个为 true 都会打印关键的接口请求及响应信息。

public static boolean IS_PRINT_BIG_LOG = false;

/**

* 可以通过切换该变量来控制是否打印关键的接口请求结束时间。保守起见，该值默认为false。

* 与 {@link Log#DEBUG} 任何一个为 true 都会打印关键的接口请求结束时间。

public static boolean IS_PRINT_REQUEST_ENDTIME_LOG = false;

public static int DEFAULT_QUERY_COUNT = 10;

public static int MAX_QUERY_PAGE = 100;

public static int MAX_QUERY_COUNT = 100;

public static int MAX_UPDATE_COUNT = 10;

public static int MAX_SQL_COUNT = 200;

public static int MAX_OBJECT_COUNT = 5;

public static int MAX_ARRAY_COUNT = 5;

public static int MAX_QUERY_DEPTH = 5;

@Override

public int getDefaultQueryCount() {

return DEFAULT_QUERY_COUNT;

}

@Override

public int getMaxQueryPage() {

return MAX_QUERY_PAGE;

}

@Override

public int getMaxQueryCount() {

return MAX_QUERY_COUNT;

}

@Override

public int getMaxUpdateCount() {

return MAX_UPDATE_COUNT;

}

@Override

public int getMaxSQLCount() {

return MAX_SQL_COUNT;

}

@Override

public int getMaxObjectCount() {

return MAX_OBJECT_COUNT;

}

@Override

public int getMaxArrayCount() {

return MAX_ARRAY_COUNT;

}

@Override

public int getMaxQueryDepth() {

return MAX_QUERY_DEPTH;

}

/**

* method = null

public AbstractParser() {

this(null);

}

/**needVerify = true

* @param method null ? requestMethod = GET

public AbstractParser(RequestMethod method) {

super();

setMethod(method);

setNeedVerifyRole(AbstractVerifier.ENABLE_VERIFY_ROLE);

setNeedVerifyContent(AbstractVerifier.ENABLE_VERIFY_CONTENT);

}

/**

* @param method null ? requestMethod = GET

* @param needVerify 仅限于为服务端提供方法免验证特权，普通请求不要设置为 false ！如果对应Table有权限也建议用默认值 true，保持和客户端权限一致

public AbstractParser(RequestMethod method, boolean needVerify) {

super();

setMethod(method);

setNeedVerify(needVerify);

}

protected boolean isRoot = true;

public boolean isRoot() {

return isRoot;

}

public AbstractParser<T> setRoot(boolean isRoot) {

this.isRoot = isRoot;

return this;

}

@NotNull

protected Visitor<T> visitor;

@NotNull

@Override

public Visitor<T> getVisitor() {

if (visitor == null) {

visitor = new Visitor<T>() {

@Override

public T getId() {

return null;

}

@Override

public List<T> getContactIdList() {

return null;

}

};

}

return visitor;

}

@Override

public AbstractParser<T> setVisitor(@NotNull Visitor<T> visitor) {

this.visitor = visitor;

return this;

}

protected RequestMethod requestMethod;

@NotNull

@Override

public RequestMethod getMethod() {

return requestMethod;

}

@NotNull

@Override

public AbstractParser<T> setMethod(RequestMethod method) {

this.requestMethod = method == null ? GET : method;

this.transactionIsolation = RequestMethod.isQueryMethod(method) ? Connection.TRANSACTION_NONE : Connection.TRANSACTION_REPEATABLE_READ;

return this;

}

protected int version;

@Override

public int getVersion() {

return version;

}

@Override

public AbstractParser<T> setVersion(int version) {

this.version = version;

return this;

}

protected String tag;

@Override

public String getTag() {

return tag;

}

@Override

public AbstractParser<T> setTag(String tag) {

this.tag = tag;

return this;

}

protected String requestURL;

public String getRequestURL() {

return requestURL;

}

public AbstractParser<T> setRequestURL(String requestURL) {

this.requestURL = requestURL;

return this;

}

protected JSONObject requestObject;

@Override

public JSONObject getRequest() {

return requestObject;

}

@Override

public AbstractParser<T> setRequest(JSONObject request) {

this.requestObject = request;

return this;

}

protected Boolean globalFormat;

public AbstractParser<T> setGlobalFormat(Boolean globalFormat) {

this.globalFormat = globalFormat;

return this;

}

@Override

public Boolean getGlobalFormat() {

return globalFormat;

}

protected String globalRole;

public AbstractParser<T> setGlobalRole(String globalRole) {

this.globalRole = globalRole;

return this;

}

@Override

public String getGlobalRole() {

return globalRole;

}

protected String globalDatabase;

public AbstractParser<T> setGlobalDatabase(String globalDatabase) {

this.globalDatabase = globalDatabase;

return this;

}

@Override

public String getGlobalDatabase() {

return globalDatabase;

}

protected String globalSchema;

public AbstractParser<T> setGlobalSchema(String globalSchema) {

this.globalSchema = globalSchema;

return this;

}

@Override

public String getGlobalSchema() {

return globalSchema;

}

protected String globalDatasource;

@Override

public String getGlobalDatasource() {

return globalDatasource;

}

public AbstractParser<T> setGlobalDatasource(String globalDatasource) {

this.globalDatasource = globalDatasource;

return this;

}

protected Boolean globalExplain;

public AbstractParser<T> setGlobalExplain(Boolean globalExplain) {

this.globalExplain = globalExplain;

return this;

}

@Override

public Boolean getGlobalExplain() {

return globalExplain;

}

protected String globalCache;

public AbstractParser<T> setGlobalCache(String globalCache) {

this.globalCache = globalCache;

return this;

}

@Override

public String getGlobalCache() {

return globalCache;

}

@Override

public AbstractParser<T> setNeedVerify(boolean needVerify) {

setNeedVerifyLogin(needVerify);

setNeedVerifyRole(needVerify);

setNeedVerifyContent(needVerify);

return this;

}

protected boolean needVerifyLogin;

@Override

public boolean isNeedVerifyLogin() {

return needVerifyLogin;

}

@Override

public AbstractParser<T> setNeedVerifyLogin(boolean needVerifyLogin) {

this.needVerifyLogin = needVerifyLogin;

return this;

}

protected boolean needVerifyRole;

@Override

public boolean isNeedVerifyRole() {

return needVerifyRole;

}

@Override

public AbstractParser<T> setNeedVerifyRole(boolean needVerifyRole) {

this.needVerifyRole = needVerifyRole;

return this;

}

protected boolean needVerifyContent;

@Override

public boolean isNeedVerifyContent() {

return needVerifyContent;

}

@Override

public AbstractParser<T> setNeedVerifyContent(boolean needVerifyContent) {

this.needVerifyContent = needVerifyContent;

return this;

}

protected SQLExecutor sqlExecutor;

protected Verifier<T> verifier;

protected Map<String, Object> queryResultMap;//path-result

@Override

public SQLExecutor getSQLExecutor() {

if (sqlExecutor == null) {

sqlExecutor = createSQLExecutor();

sqlExecutor.setParser(this);

}

return sqlExecutor;

}

@Override

public Verifier<T> getVerifier() {

if (verifier == null) {

verifier = createVerifier().setVisitor(getVisitor());

}

return verifier;

}

/**解析请求json并获取对应结果

* @param request

* @return

@Override

public String parse(String request) {

return JSON.toJSONString(parseResponse(request));

}

/**解析请求json并获取对应结果

* @param request

* @return

@NotNull

@Override

public String parse(JSONObject request) {

return JSON.toJSONString(parseResponse(request));

}

/**解析请求json并获取对应结果

* @param request 先parseRequest中URLDecoder.decode(request, UTF_8);再parseResponse(getCorrectRequest(...))

* @return parseResponse(requestObject);

@NotNull

@Override

public JSONObject parseResponse(String request) {

Log.d(TAG, "\n\n\n\n<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<\n"

+ requestMethod + "/parseResponse request = \n" + request + "\n\n");

try {

requestObject = parseRequest(request);

} catch (Exception e) {

return newErrorResult(e, isRoot);

}

return parseResponse(requestObject);

}

private int queryDepth;

private long executedSQLDuration;

/**解析请求json并获取对应结果

* @param request

* @return requestObject

@NotNull

@Override

public JSONObject parseResponse(JSONObject request) {

long startTime = System.currentTimeMillis();

Log.d(TAG, "parseResponse startTime = " + startTime

+ "<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<\n\n\n ");

requestObject = request;

try {

setVersion(requestObject.getIntValue(JSONRequest.KEY_VERSION));

if (getMethod() != RequestMethod.CRUD) {

setTag(requestObject.getString(JSONRequest.KEY_TAG));

requestObject.remove(JSONRequest.KEY_TAG);

}

requestObject.remove(JSONRequest.KEY_VERSION);

} catch (Exception e) {

return extendErrorResult(requestObject, e, requestMethod, getRequestURL(), isRoot);

}

verifier = createVerifier().setVisitor(getVisitor());

if (RequestMethod.isPublicMethod(requestMethod) == false) {

try {

if (isNeedVerifyLogin()) {

onVerifyLogin();

}

if (isNeedVerifyContent()) {

onVerifyContent();

}

} catch (Exception e) {

return extendErrorResult(requestObject, e, requestMethod, getRequestURL(), isRoot);

}

//必须在parseCorrectRequest后面，因为parseCorrectRequest可能会添加 @role

if (isNeedVerifyRole() && globalRole == null) {

try {

setGlobalRole(requestObject.getString(JSONRequest.KEY_ROLE));

requestObject.remove(JSONRequest.KEY_ROLE);

} catch (Exception e) {

return extendErrorResult(requestObject, e, requestMethod, getRequestURL(), isRoot);

}

try {

setGlobalFormat(requestObject.getBoolean(JSONRequest.KEY_FORMAT));

setGlobalDatabase(requestObject.getString(JSONRequest.KEY_DATABASE));

setGlobalSchema(requestObject.getString(JSONRequest.KEY_SCHEMA));

setGlobalDatasource(requestObject.getString(JSONRequest.KEY_DATASOURCE));

setGlobalExplain(requestObject.getBoolean(JSONRequest.KEY_EXPLAIN));

setGlobalCache(requestObject.getString(JSONRequest.KEY_CACHE));

requestObject.remove(JSONRequest.KEY_FORMAT);

requestObject.remove(JSONRequest.KEY_DATABASE);

requestObject.remove(JSONRequest.KEY_SCHEMA);

requestObject.remove(JSONRequest.KEY_DATASOURCE);

requestObject.remove(JSONRequest.KEY_EXPLAIN);

requestObject.remove(JSONRequest.KEY_CACHE);

} catch (Exception e) {

return extendErrorResult(requestObject, e, requestMethod, getRequestURL(), isRoot);

}

final String requestString = JSON.toJSONString(request);//request传进去解析后已经变了

queryResultMap = new HashMap<String, Object>();

Exception error = null;

sqlExecutor = createSQLExecutor();

onBegin();

try {

queryDepth = 0;

executedSQLDuration = 0;

requestObject = onObjectParse(request, null, null, null, false);

onCommit();

}

catch (Exception e) {

e.printStackTrace();

error = e;

onRollback();

}

requestObject = error == null ? extendSuccessResult(requestObject, isRoot) : extendErrorResult(requestObject, error, requestMethod, getRequestURL(), isRoot);

JSONObject res = (globalFormat != null && globalFormat) && JSONResponse.isSuccess(requestObject) ? new JSONResponse(requestObject) : requestObject;

long endTime = System.currentTimeMillis();

long duration = endTime - startTime;

res.putIfAbsent("time", endTime);

if (Log.DEBUG) {

res.put("depth:count|max", queryDepth + "|" + getMaxQueryDepth());

executedSQLDuration += sqlExecutor.getExecutedSQLDuration() + sqlExecutor.getSqlResultDuration();

long parseDuration = duration - executedSQLDuration;

if (error != null) {

// String msg = error.getMessage();

// if (msg != null && msg.contains(Log.KEY_SYSTEM_INFO_DIVIDER)) {

// }

Throwable t = error instanceof CommonException && error.getCause() != null ? error.getCause() : error;

res.put("trace:throw", t.getClass().getName());

res.put("trace:stack", t.getStackTrace());

}

onClose();

// CS304 Issue link: https://github.com/Tencent/APIJSON/issues/232

if (IS_PRINT_REQUEST_STRING_LOG || Log.DEBUG || error != null) {

Log.sl("\n\n\n", '<', "");

Log.fd(TAG, requestMethod + "/parseResponse request = \n" + requestString + "\n\n");

}

if (IS_PRINT_BIG_LOG || Log.DEBUG || error != null) { // 日志仅存服务器，所以不太敏感，而且这些日志虽然量大但非常重要，对排查 bug 很关键

Log.fd(TAG, requestMethod + "/parseResponse return response = \n" + JSON.toJSONString(requestObject) + "\n\n");

}

if (IS_PRINT_REQUEST_ENDTIME_LOG || Log.DEBUG || error != null) {

Log.fd(TAG, requestMethod + "/parseResponse endTime = " + endTime + "; duration = " + duration);

Log.sl("", '>', "\n\n\n");

}

return res;

}

@Override

public void onVerifyLogin() throws Exception {

getVerifier().verifyLogin();

}

@Override

public void onVerifyContent() throws Exception {

requestObject = parseCorrectRequest();

}

/**校验角色及对应操作的权限

* @param config

* @return

* @throws Exception

@Override

public void onVerifyRole(@NotNull SQLConfig config) throws Exception {

if (Log.DEBUG) {

Log.i(TAG, "onVerifyRole config = " + JSON.toJSONString(config));

}

if (isNeedVerifyRole()) {

if (config.getRole() == null) {

if (globalRole != null) {

config.setRole(globalRole);

} else {

config.setRole(getVisitor().getId() == null ? AbstractVerifier.UNKNOWN : AbstractVerifier.LOGIN);

}

getVerifier().verifyAccess(config);

}

/**解析请求JSONObject

* @param request => URLDecoder.decode(request, UTF_8);

* @return

* @throws Exception

@NotNull

public static JSONObject parseRequest(String request) throws Exception {

JSONObject obj = JSON.parseObject(request);

if (obj == null) {

throw new UnsupportedEncodingException("JSON格式不合法！");

}

return obj;

}

@Override

public JSONObject parseCorrectRequest(RequestMethod method, String tag, int version, String name, @NotNull JSONObject request

, int maxUpdateCount, SQLCreator creator) throws Exception {

if (RequestMethod.isPublicMethod(method)) {

return request;//需要指定JSON结构的get请求可以改为post请求。一般只有对安全性要求高的才会指定，而这种情况用明文的GET方式几乎肯定不安全

}

return batchVerify(method, tag, version, name, request, maxUpdateCount, creator);

}

/**自动根据 tag 是否为 TableKey 及是否被包含在 object 内来决定是否包装一层，改为 { tag: object, "tag": tag }

* @param object

* @param tag

* @return

public static JSONObject wrapRequest(RequestMethod method, String tag, JSONObject object, boolean isStructure) {

boolean putTag = ! isStructure;

if (object == null || object.containsKey(tag)) { //tag 是 Table 名或 Table[]

if (putTag) {

if (object == null) {

object = new JSONObject(true);

}

object.put(JSONRequest.KEY_TAG, tag);

}

return object;

}

boolean isDiffArrayKey = tag.endsWith(":[]");

boolean isArrayKey = isDiffArrayKey || JSONRequest.isArrayKey(tag);

String key = isArrayKey ? tag.substring(0, tag.length() - (isDiffArrayKey ? 3 : 2)) : tag;

JSONObject target = object;

if (apijson.JSONObject.isTableKey(key)) {

if (isDiffArrayKey) { //自动为 tag = Comment:[] 的 { ... } 新增键值对为 { "Comment[]":[], "TYPE": { "Comment[]": "OBJECT[]" } ... }

if (isStructure && (method == RequestMethod.POST || method == RequestMethod.PUT)) {

String arrKey = key + "[]";

if (target.containsKey(arrKey) == false) {

target.put(arrKey, new JSONArray());

}

try {

JSONObject type = target.getJSONObject(Operation.TYPE.name());

if (type == null || (type.containsKey(arrKey) == false)) {

if (type == null) {

type = new JSONObject(true);

}

type.put(arrKey, "OBJECT[]");

target.put(Operation.TYPE.name(), type);

}

catch (Throwable e) {

Log.w(TAG, "wrapRequest try { JSONObject type = target.getJSONObject(Operation.TYPE.name()); } catch (Exception e) = " + e.getMessage());

}

else { //自动为 tag = Comment 的 { ... } 包一层为 { "Comment": { ... } }

if (isArrayKey == false || RequestMethod.isGetMethod(method, true)) {

target = new JSONObject(true);

target.put(tag, object);

}

else if (target.containsKey(key) == false) {

target = new JSONObject(true);

target.put(key, object);

}

if (putTag) {

target.put(JSONRequest.KEY_TAG, tag);

}

return target;

}

/**新建带状态内容的JSONObject

* @param code

* @param msg

* @return

public static JSONObject newResult(int code, String msg) {

return newResult(code, msg, false);

}

/**新建带状态内容的JSONObject

* @param code

* @param msg

* @param isRoot

* @return

public static JSONObject newResult(int code, String msg, boolean isRoot) {

return extendResult(null, code, msg, isRoot);

}

/**添加JSONObject的状态内容，一般用于错误提示结果

* @param object

* @param code

* @param msg

* @return

public static JSONObject extendResult(JSONObject object, int code, String msg, boolean isRoot) {

int index = Log.DEBUG == false || isRoot == false || msg == null ? -1 : msg.lastIndexOf(Log.KEY_SYSTEM_INFO_DIVIDER);

String debug = Log.DEBUG == false || isRoot == false ? null : (index >= 0 ? msg.substring(index + Log.KEY_SYSTEM_INFO_DIVIDER.length()).trim()

: " \n提 bug 请发请求和响应的【完整截屏】，没图的自行解决！"

+ " \n开发者有限的时间和精力主要放在【维护项目源码和文档】上！"

+ " \n【描述不详细】或【文档/常见问题已有答案】的问题可能会被忽略！！"

+ " \n【态度不文明/不友善】的可能会被踢出群，问题也可能不予解答！！！"

+ " \n\n **环境信息** "

+ " \n系统: " + Log.OS_NAME + " " + Log.OS_VERSION

+ " \n数据库: DEFAULT_DATABASE = " + AbstractSQLConfig.DEFAULT_DATABASE

+ " \nJDK: " + Log.JAVA_VERSION + " " + Log.OS_ARCH

+ " \nAPIJSON: " + Log.VERSION

+ " \n \n【常见问题】：https://github.com/Tencent/APIJSON/issues/36"

+ " \n【通用文档】：https://github.com/Tencent/APIJSON/blob/master/Document.md"

+ " \n【视频教程】：https://search.bilibili.com/all?keyword=APIJSON");

msg = index >= 0 ? msg.substring(0, index) : msg;

if (object == null) {

object = new JSONObject(true);

}

if (object.get(JSONResponse.KEY_OK) == null) {

object.put(JSONResponse.KEY_OK, JSONResponse.isSuccess(code));

}

if (object.get(JSONResponse.KEY_CODE) == null) {

object.put(JSONResponse.KEY_CODE, code);

}

String m = StringUtil.getString(object.getString(JSONResponse.KEY_MSG));

if (m.isEmpty() == false) {

msg = m + " ;\n " + StringUtil.getString(msg);

}

object.put(JSONResponse.KEY_MSG, msg);

if (debug != null) {

object.put("debug:info|help", debug);

}

return object;

}

/**添加请求成功的状态内容

* @param object

* @return

public static JSONObject extendSuccessResult(JSONObject object) {

return extendSuccessResult(object, false);

}

/**添加请求成功的状态内容

* @param object

* @param isRoot

* @return

public static JSONObject extendSuccessResult(JSONObject object, boolean isRoot) {

return extendResult(object, JSONResponse.CODE_SUCCESS, JSONResponse.MSG_SUCCEED, isRoot);

}

/**获取请求成功的状态内容

* @return

public static JSONObject newSuccessResult() {

return newSuccessResult(false);

}

/**获取请求成功的状态内容

* @param isRoot

* @return

public static JSONObject newSuccessResult(boolean isRoot) {

return newResult(JSONResponse.CODE_SUCCESS, JSONResponse.MSG_SUCCEED, isRoot);

}

/**添加请求成功的状态内容

* @param object

* @param e

* @return

public static JSONObject extendErrorResult(JSONObject object, Throwable e) {

return extendErrorResult(object, e, false);

}

/**添加请求成功的状态内容

* @param object

* @param e

* @param isRoot

* @return

public static JSONObject extendErrorResult(JSONObject object, Throwable e, boolean isRoot) {

return extendErrorResult(object, e, null, null, isRoot);

}

/**添加请求成功的状态内容

* @param object

* @return

public static JSONObject extendErrorResult(JSONObject object, Throwable e, RequestMethod requestMethod, String url, boolean isRoot) {

String msg = CommonException.getMsg(e);

if (Log.DEBUG && isRoot) {

try {

boolean isCommon = e instanceof CommonException;

String env = isCommon ? ((CommonException) e).getEnvironment() : null;

if (StringUtil.isEmpty(env)) {

//int index = msg.lastIndexOf(Log.KEY_SYSTEM_INFO_DIVIDER);

//env = index >= 0 ? msg.substring(index + Log.KEY_SYSTEM_INFO_DIVIDER.length()).trim()

env = " \n **环境信息** "

+ " \n 系统: " + Log.OS_NAME + " " + Log.OS_VERSION

+ " \n 数据库: "

+ " \n JDK: " + Log.JAVA_VERSION + " " + Log.OS_ARCH

+ " \n APIJSON: " + Log.VERSION;

//msg = index < 0 ? msg : msg.substring(0, index).trim();

}

String encodedMsg = URLEncoder.encode(msg, "UTF-8");

if (StringUtil.isEmpty(url, true)) {

String host = "localhost";

try {

host = InetAddress.getLocalHost().getHostAddress();

} catch (Throwable e2) {}

String port = "8080";

try {

MBeanServer beanServer = ManagementFactory.getPlatformMBeanServer();

Set<ObjectName> objectNames = beanServer.queryNames(

new ObjectName("*:type=Connector,*"),

Query.match(Query.attr("protocol"), Query.value("HTTP/1.1"))

);

String p = objectNames.iterator().next().getKeyProperty("port");

port = StringUtil.isEmpty(p, true) ? port : p;

} catch (Throwable e2) {}

url = "http://" + host + ":" + port + "/" + (requestMethod == null ? RequestMethod.GET : requestMethod).name().toLowerCase();

}

String req = JSON.toJSONString(object);

try {

req = URLEncoder.encode(req, "UTF-8");

} catch (Throwable e2) {}

Throwable t = isCommon ? e.getCause() : e;

boolean isSQLException = t instanceof SQLException; // SQL 报错一般都是通用问题，优先搜索引擎

String apiatuoAndGitHubLink = "\n\n【APIAuto】： \n http://apijson.cn/api?type=JSON&url=" + URLEncoder.encode(url, "UTF-8") + "&json=" + req

+ " \n\n【GitHub】： \n https://www.google.com/search?q=site%3Agithub.com%2FTencent%2FAPIJSON+++" + encodedMsg;

msg += Log.KEY_SYSTEM_INFO_DIVIDER + " 浏览器打开以下链接查看解答"

+ (isSQLException ? "" : apiatuoAndGitHubLink)

// GitHub Issue 搜索貌似是精准包含，不易找到答案 + " \n\nGitHub： \n https://github.com/Tencent/APIJSON/issues?q=is%3Aissue+" + encodedMsg

+ " \n\n【Google】：\n https://www.google.com/search?q=" + encodedMsg

+ " \n\n【百度】：\n https://www.baidu.com/s?ie=UTF-8&wd=" + encodedMsg

+ (isSQLException ? apiatuoAndGitHubLink : "")

+ " \n\n都没找到答案？打开这个链接 \n https://github.com/Tencent/APIJSON/issues/new?assignees=&labels=&template=--bug.md "

+ " \n然后提交问题，推荐用以下模板修改，注意要换行保持清晰可读。"

+ " \n【标题】：" + msg

+ " \n【内容】：" + env + "\n\n**问题描述**\n" + msg

+ " \n\n"

+ " \n\nPOST " + url

+ " \n发送请求 Request JSON：\n ```js"

+ " \n 请填写，例如 { \"Users\":{} }"

+ " \n```"

+ " \n\n返回结果 Response JSON：\n ```js"

+ " \n 请填写，例如 { \"Users\": {}, \"code\": 401, \"msg\": \"Users 不允许 UNKNOWN 用户的 GET 请求！\" }"

+ " \n```";

} catch (Throwable e2) {}

}

int code = CommonException.getCode(e);

return extendResult(object, code, msg, isRoot);

}

/**新建错误状态内容

* @param e

* @return

public static JSONObject newErrorResult(Exception e) {

return newErrorResult(e, false);

}

/**新建错误状态内容

* @param e

* @param isRoot

* @return

public static JSONObject newErrorResult(Exception e, boolean isRoot) {

if (e != null) {

// if (Log.DEBUG) {

e.printStackTrace();

// }

String msg = CommonException.getMsg(e);

Integer code = CommonException.getCode(e);

return newResult(code, msg, isRoot);

}

return newResult(JSONResponse.CODE_SERVER_ERROR, JSONResponse.MSG_SERVER_ERROR, isRoot);

}

//TODO 启动时一次性加载Request所有内容，作为初始化。

/**获取正确的请求，非GET请求必须是服务器指定的

* @return

* @throws Exception

@Override

public JSONObject parseCorrectRequest() throws Exception {

return parseCorrectRequest(requestMethod, tag, version, "", requestObject, getMaxUpdateCount(), this);

}

/**获取Request或Response内指定JSON结构

* @param table

* @param method

* @param tag

* @param version

* @return

* @throws Exception

@Override

public JSONObject getStructure(@NotNull String table, String method, String tag, int version) throws Exception {

// TODO 目前只使用 Request 而不使用 Response，所以这里写死用 REQUEST_MAP，以后可能 Response 表也会与 Request 表合并，用字段来区分

String cacheKey = AbstractVerifier.getCacheKeyForRequest(method, tag);

SortedMap<Integer, JSONObject> versionedMap = AbstractVerifier.REQUEST_MAP.get(cacheKey);

JSONObject result = versionedMap == null ? null : versionedMap.get(Integer.valueOf(version));

if (result == null) { // version <= 0 时使用最新，version > 0 时使用 > version 的最接近版本（最小版本）

Set<Entry<Integer, JSONObject>> set = versionedMap == null ? null : versionedMap.entrySet();

if (set != null && set.isEmpty() == false) {

Entry<Integer, JSONObject> maxEntry = null;

for (Entry<Integer, JSONObject> entry : set) {

if (entry == null || entry.getKey() == null || entry.getValue() == null) {

continue;

}

if (version <= 0 || version == entry.getKey()) { // 这里应该不会出现相等，因为上面 versionedMap.get(Integer.valueOf(version))

maxEntry = entry;

break;

}

if (entry.getKey() < version) {

break;

}

maxEntry = entry;

}

result = maxEntry == null ? null : maxEntry.getValue();

}

if (result != null) { // 加快下次查询，查到值的话组合情况其实是有限的，不属于恶意请求

if (versionedMap == null) {

versionedMap = new TreeMap<>((o1, o2) -> {

return o2 == null ? -1 : o2.compareTo(o1); // 降序

});

}

versionedMap.put(Integer.valueOf(version), result);

AbstractVerifier.REQUEST_MAP.put(cacheKey, versionedMap);

}

if (result == null) {

if (Log.DEBUG == false && AbstractVerifier.REQUEST_MAP.isEmpty() == false) {

return null; // 已使用 REQUEST_MAP 缓存全部，但没查到

}

// 获取指定的JSON结构 <<<<<<<<<<<<<<

SQLConfig config = createSQLConfig().setMethod(GET).setTable(table);

config.setPrepared(false);

config.setColumn(Arrays.asList("structure"));

Map<String, Object> where = new HashMap<String, Object>();

where.put("method", method);

where.put(JSONRequest.KEY_TAG, tag);

if (version > 0) {

where.put(JSONRequest.KEY_VERSION + ">=", version);

}

config.setWhere(where);

config.setOrder(JSONRequest.KEY_VERSION + (version > 0 ? "+" : "-"));

config.setCount(1);

// too many connections error: 不try-catch，可以让客户端看到是服务器内部异常

result = getSQLExecutor().execute(config, false);

// version, method, tag 组合情况太多了，JDK 里又没有 LRUCache，所以要么启动时一次性缓存全部后面只用缓存，要么每次都查数据库

// versionedMap.put(Integer.valueOf(version), result);

// AbstractVerifier.REQUEST_MAP.put(cacheKey, versionedMap);

}

return getJSONObject(result, "structure"); //解决返回值套了一层 "structure":{}

}

protected Map<String, ObjectParser> arrayObjectParserCacheMap = new HashMap<>();

// protected SQLConfig itemConfig;

/**获取单个对象，该对象处于parentObject内

* @param request parentObject 的 value

* @param parentPath parentObject 的路径

* @param name parentObject 的 key

* @param arrayConfig config for array item

* @param isSubquery 是否为子查询

* @return

* @throws Exception

@Override

public JSONObject onObjectParse(final JSONObject request

, String parentPath, String name, final SQLConfig arrayConfig, boolean isSubquery) throws Exception {

if (Log.DEBUG) {

Log.i(TAG, "\ngetObject: parentPath = " + parentPath

+ ";\n name = " + name + "; request = " + JSON.toJSONString(request));

}

if (request == null) {// Moment:{} || request.isEmpty()) {//key-value条件

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