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远程函数：支持自动且智能解析参数值，兼容 key, 'value' 指定键值格式；@raw 支持远程函数和存储过程

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This commit is contained in:
TommyLemon 2022-11-17 05:30:32 +08:00
parent 88e77c23a3
commit edd8570f7a
4 changed files with 137 additions and 30 deletions
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136
APIJSONORM/src/main/java/apijson/orm/AbstractFunctionParser.java
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@ -10,6 +10,7 @@ import java.lang.invoke.WrongMethodTypeException;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import java.util.Arrays;
import java.util.Collection;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
@ -22,6 +23,8 @@ import javax.script.ScriptEngineManager;
import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.JSONArray;
import com.alibaba.fastjson.JSONObject;
import com.alibaba.fastjson.parser.ParserConfig;
import com.alibaba.fastjson.util.TypeUtils;
import apijson.Log;
import apijson.NotNull;
@ -34,6 +37,10 @@ import apijson.StringUtil;
public class AbstractFunctionParser implements FunctionParser {
private static final String TAG = "AbstractFunctionParser";
/**是否解析参数 key 的对应的值，不用手动编码 curObj.getString(key)
*/
public static boolean IS_PARSE_ARG_VALUE = false;
/**开启支持远程函数
*/
public static boolean ENABLE_REMOTE_FUNCTION = true;
@ -155,11 +162,21 @@ public class AbstractFunctionParser implements FunctionParser {
/**反射调用
* @param function 例如get(object,key)，参数只允许引用，不能直接传值
* @param currentObject 不作为第一个参数，就不能远程调用invoke，避免死循环
* @return {@link #invoke(AbstractFunctionParser, String, JSONObject)}
* @return {@link #invoke(String, JSONObject, boolean)}
*/
@Override
public Object invoke(@NotNull String function, @NotNull JSONObject currentObject) throws Exception {
return invoke(this, function, currentObject);
return invoke(function, currentObject, false);
}
/**反射调用
* @param function 例如get(object,key)，参数只允许引用，不能直接传值
* @param currentObject 不作为第一个参数，就不能远程调用invoke，避免死循环
* @param containRaw 包含原始 SQL 片段
* @return {@link #invoke(AbstractFunctionParser, String, JSONObject, boolean)}
*/
@Override
public Object invoke(@NotNull String function, @NotNull JSONObject currentObject, boolean containRaw) throws Exception {
return invoke(this, function, currentObject, containRaw);
}
/**反射调用
@ -168,13 +185,13 @@ public class AbstractFunctionParser implements FunctionParser {
* @param currentObject
* @return {@link #invoke(AbstractFunctionParser, String, Class[], Object[])}
*/
public static Object invoke(@NotNull AbstractFunctionParser parser, @NotNull String function, @NotNull JSONObject currentObject) throws Exception {
public static Object invoke(@NotNull AbstractFunctionParser parser, @NotNull String function, @NotNull JSONObject currentObject, boolean containRaw) throws Exception {
if (ENABLE_REMOTE_FUNCTION == false) {
throw new UnsupportedOperationException("AbstractFunctionParser.ENABLE_REMOTE_FUNCTION" +
" == false 时不支持远程函数！如需支持则设置 AbstractFunctionParser.ENABLE_REMOTE_FUNCTION = true ！");
}
FunctionBean fb = parseFunction(function, currentObject, false);
FunctionBean fb = parseFunction(function, currentObject, false, containRaw);
JSONObject row = FUNCTION_MAP.get(fb.getMethod());
if (row == null) {
@ -230,17 +247,31 @@ public class AbstractFunctionParser implements FunctionParser {
}
/**反射调用
* @param parser
* @param methodName
* @param parameterTypes
* @param args
* @return
* @return {@link #invoke(AbstractFunctionParser, String, Class[], Object[], String, JSONObject, int)}
* @throws Exception
*/
public static Object invoke(@NotNull AbstractFunctionParser parser, @NotNull String methodName
, @NotNull Class<?>[] parameterTypes, @NotNull Object[] args) throws Exception {
return invoke(parser, methodName, parameterTypes, args, null, null, TYPE_REMOTE_FUNCTION);
}
/**反射调用
* @param parser
* @param methodName
* @param parameterTypes
* @param args
* @param returnType
* @param currentObject
* @param type
* @return
* @throws Exception
*/
public static Object invoke(@NotNull AbstractFunctionParser parser, @NotNull String methodName
, @NotNull Class<?>[] parameterTypes, @NotNull Object[] args, String returnType, JSONObject currentObject, int type) throws Exception {
, @NotNull Class<?>[] parameterTypes, @NotNull Object[] args, String returnType
, JSONObject currentObject, int type) throws Exception {
if (type == TYPE_SCRIPT_FUNCTION) {
return invokeScript(parser, methodName, parameterTypes, args, returnType, currentObject);
}
@ -276,11 +307,22 @@ public class AbstractFunctionParser implements FunctionParser {
/*获取执行JavaScript的执行引擎*/
SCRIPT_ENGINE = new ScriptEngineManager().getEngineByName("javascript");
INVOCABLE = (Invocable) SCRIPT_ENGINE;
} catch (Exception e) {
}
catch (Exception e) {
e.printStackTrace();
}
}
/**Java 调用 JavaScript 函数
* @param parser
* @param methodName
* @param parameterTypes
* @param args
* @param returnType
* @param currentObject
* @return
* @throws Exception
*/
public static Object invokeScript(@NotNull AbstractFunctionParser parser, @NotNull String methodName
, @NotNull Class<?>[] parameterTypes, @NotNull Object[] args, String returnType, JSONObject currentObject) throws Exception {
JSONObject row = SCRIPT_MAP.get(methodName);
@ -388,6 +430,17 @@ public class AbstractFunctionParser implements FunctionParser {
*/
@NotNull
public static FunctionBean parseFunction(@NotNull String function, @NotNull JSONObject request, boolean isSQLFunction) throws Exception {
return parseFunction(function, request, isSQLFunction, false);
}
/**解析函数，自动解析的值类型只支持 Boolean, Number, String, Map, List
* @param function
* @param request
* @param isSQLFunction
* @param containRaw
* @return
* @throws Exception
*/
public static FunctionBean parseFunction(@NotNull String function, @NotNull JSONObject request, boolean isSQLFunction, boolean containRaw) throws Exception {
int start = function.indexOf("(");
int end = function.lastIndexOf(")");
@ -405,14 +458,14 @@ public class AbstractFunctionParser implements FunctionParser {
Class<?>[] types;
Object[] values;
if (isSQLFunction) {
if (isSQLFunction || IS_PARSE_ARG_VALUE) {
types = new Class<?>[length];
values = new Object[length];
//碰到null就挂了！！！Number还得各种转换不灵活！不如直接传request和对应的key到函数里，函数内实现时自己 getLongValue,getJSONObject ...
Object v;
for (int i = 0; i < length; i++) {
v = values[i] = request.get(keys[i]);
v = values[i] = getArgValue(request, keys[i], containRaw); // request.get(keys[i]);
if (v == null) {
types[i] = Object.class;
values[i] = null;
@ -421,24 +474,29 @@ public class AbstractFunctionParser implements FunctionParser {
if (v instanceof Boolean) {
types[i] = Boolean.class; //只支持JSON的几种类型
}
} // 怎么都有 bug，如果是引用的值，很多情况下无法指定 // 用 1L 指定为 Long ？ 其它的默认按长度分配为 Integer 或 Long？
//else if (v instanceof Long || v instanceof Integer || v instanceof Short) {
// types[i] = Long.class;
//}
else if (v instanceof Number) {
types[i] = Number.class;
}
else if (v instanceof String) {
types[i] = String.class;
}
else if (v instanceof JSONObject) { // Map) {
types[i] = JSONObject.class;
//性能比较差 values[i] = request.getJSONObject(keys[i]);
else if (v instanceof Map) { // 泛型兼容？ // JSONObject
types[i] = Map.class;
//性能比较差
//values[i] = TypeUtils.cast(v, Map.class, ParserConfig.getGlobalInstance());
}
else if (v instanceof JSONArray) { // Collection) {
types[i] = JSONArray.class;
//性能比较差 values[i] = request.getJSONArray(keys[i]);
else if (v instanceof Collection) { // 泛型兼容？ // JSONArray
types[i] = List.class;
//性能比较差
values[i] = TypeUtils.cast(v, List.class, ParserConfig.getGlobalInstance());
}
else { //FIXME 碰到null就挂了！！！
throw new UnsupportedDataTypeException(keys[i] + ":value 中value不合法！远程函数 key():" + function + " 中的arg对应的值类型"
+ "只能是 [Boolean, Number, String, JSONObject, JSONArray] 中的一种！");
else {
throw new UnsupportedDataTypeException(keys[i] + ":value 中value不合法！远程函数 key():"
+ function + " 中的 arg 对应的值类型只能是 [Boolean, Number, String, JSONObject, JSONArray] 中的一种！");
}
}
}
@ -485,6 +543,46 @@ public class AbstractFunctionParser implements FunctionParser {
return f;
}
public static <T> T getArgValue(@NotNull JSONObject currentObject, String keyOrValue) {
return getArgValue(currentObject, keyOrValue, false);
}
public static <T> T getArgValue(@NotNull JSONObject currentObject, String keyOrValue, boolean containRaw) {
if (keyOrValue == null) {
return null;
}
if (keyOrValue.endsWith("`") && keyOrValue.lastIndexOf("`") == 0) {
return (T) currentObject.get(keyOrValue.substring(1, keyOrValue.length() - 1));
}
if (keyOrValue.endsWith("'") && keyOrValue.lastIndexOf("'") == 0) {
return (T) keyOrValue.substring(1, keyOrValue.length() - 1);
}
if (StringUtil.isName(keyOrValue.startsWith("@") ? keyOrValue.substring(1) : keyOrValue)) {
return (T) currentObject.get(keyOrValue);
}
// 传参加上 @raw:"key()" 避免意外情况
Object val = containRaw ? AbstractSQLConfig.RAW_MAP.get(keyOrValue) : null;
if (val != null) {
return (T) ("".equals(val) ? keyOrValue : val);
}
try {
val = JSON.parse(keyOrValue);
if (apijson.JSON.isBooleanOrNumberOrString(val)) {
return (T) val;
}
}
catch (Throwable e) {
Log.d(TAG, "getArgValue try {\n" +
" Object val = JSON.parse(keyOrValue);" +
"} catch (Throwable e) = " + e.getMessage());
}
return (T) currentObject.get(keyOrValue);
}
public static class FunctionBean {
private String function;

18
APIJSONORM/src/main/java/apijson/orm/AbstractObjectParser.java
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@ -105,6 +105,9 @@ public abstract class AbstractObjectParser implements ObjectParser {
request.remove(KEY_DROP);
}
String raw = request.getString(JSONRequest.KEY_RAW);
String[] rks = StringUtil.split(raw);
rawKeyList = rks == null || rks.length <= 0 ? null : Arrays.asList(rks);
}
@Override
@ -172,6 +175,8 @@ public abstract class AbstractObjectParser implements ObjectParser {
private int objectCount;
private int arrayCount;
private List<String> rawKeyList;
/**解析成员
* response重新赋值
* @return null or this
@ -452,7 +457,7 @@ public abstract class AbstractObjectParser implements ObjectParser {
}
if (isPlus == false && isTable == false) {
parseFunction(k, (String) value, parentPath, name, request, isMinus);
parseFunction(key, k, (String) value, parentPath, name, request, isMinus);
}
else {
//远程函数比较少用，一般一个Table:{}内用到也就一两个，所以这里循环里new出来对性能影响不大。
@ -795,19 +800,22 @@ public abstract class AbstractObjectParser implements ObjectParser {
JSONObject json = isMinus ? sqlRequest : response; // key-():function 是实时执行，而不是在这里批量执行
for (Entry<String, String> entry : functionSet) {
parseFunction(entry.getKey(), entry.getValue(), parentPath, name, json, isMinus);
parseFunction(entry.getKey(), entry.getKey(), entry.getValue(), parentPath, name, json, isMinus);
}
}
}
//public void parseFunction(String key, String value, String parentPath, String currentName, JSONObject currentObject) throws Exception {
// parseFunction(key, value, parentPath, currentName, currentObject, false);
//}
public void parseFunction(String key, String value, String parentPath, String currentName, JSONObject currentObject, boolean isMinus) throws Exception {
public void parseFunction(String rawKey, String key, String value, String parentPath, String currentName, JSONObject currentObject, boolean isMinus) throws Exception {
Object result;
boolean containRaw = rawKeyList != null && rawKeyList.contains(rawKey);
boolean isProcedure = key.startsWith("@");
if (isProcedure) {
FunctionBean fb = AbstractFunctionParser.parseFunction(value, currentObject, true);
FunctionBean fb = AbstractFunctionParser.parseFunction(value, currentObject, true, containRaw);
SQLConfig config = newSQLConfig(true);
config.setProcedure(fb.toFunctionCallString(true));
@ -816,7 +824,7 @@ public abstract class AbstractObjectParser implements ObjectParser {
key = key.substring(1);
}
else {
result = parser.onFunctionParse(key, value, parentPath, currentName, currentObject);
result = parser.onFunctionParse(key, value, parentPath, currentName, currentObject, containRaw);
}
String k = AbstractSQLConfig.getRealKey(method, key, false, false);

1
APIJSONORM/src/main/java/apijson/orm/FunctionParser.java
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@ -17,6 +17,7 @@ import apijson.RequestMethod;
public interface FunctionParser {
Object invoke(@NotNull String function, @NotNull JSONObject currentObject) throws Exception;
Object invoke(@NotNull String function, @NotNull JSONObject currentObject, boolean containRaw) throws Exception;
RequestMethod getMethod();
FunctionParser setMethod(RequestMethod method);

2
APIJSONORM/src/main/java/apijson/orm/Parser.java
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@ -79,7 +79,7 @@ public interface Parser<T extends Object> {
* @return
* @throws Exception
*/
Object onFunctionParse(String key, String function, String parentPath, String currentName, JSONObject currentObject) throws Exception;
Object onFunctionParse(String key, String function, String parentPath, String currentName, JSONObject currentObject, boolean containRaw) throws Exception;
ObjectParser createObjectParser(JSONObject request, String parentPath, SQLConfig arrayConfig, boolean isSubquery, boolean isTable, boolean isArrayMainTable) throws Exception;