Enjoy 3.2 release ^_^

2017-07-31 22:34:15 +08:00
parent 46a7c60813
commit b82af8e219
107 changed files with 12029 additions and 192 deletions
--- a/src/main/java/com/jfinal/template/expr/ast/Method.java
+++ b/src/main/java/com/jfinal/template/expr/ast/Method.java
@@ -0,0 +1,129 @@
+/**
+ * Copyright (c) 2011-2017, James Zhan 詹波 (jfinal@126.com).
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.jfinal.template.expr.ast;
+
+import java.lang.reflect.InvocationTargetException;
+import com.jfinal.template.TemplateException;
+import com.jfinal.template.stat.Location;
+import com.jfinal.template.stat.ParseException;
+import com.jfinal.template.stat.Scope;
+
+/**
+ * Method : expr '.' ID '(' exprList? ')'
+ */
+public class Method extends Expr {
+	
+	private Expr expr;
+	private String methodName;
+	private ExprList exprList;
+	
+	public Method(Expr expr, String methodName, ExprList exprList, Location location) {
+		if (exprList == null || exprList.length() == 0) {
+			throw new ParseException("The parameter of method can not be blank", location);
+		}
+		init(expr, methodName, exprList, location);
+	}
+	
+	public Method(Expr expr, String methodName, Location location) {
+		init(expr, methodName, ExprList.NULL_EXPR_LIST, location);
+	}
+	
+	private void init(Expr expr, String methodName, ExprList exprList, Location location) {
+		if (expr == null) {
+			throw new ParseException("The target for method invoking can not be blank", location);
+		}
+		if (MethodKit.isForbiddenMethod(methodName)) {
+			throw new ParseException("Forbidden method: " + methodName, location);
+		}
+		this.expr = expr;
+		this.methodName = methodName;
+		this.exprList = exprList;
+		this.location = location;
+	}
+	
+	public Object eval(Scope scope) {
+		Object target = expr.eval(scope);
+		if (target == null) {
+			if (scope.getCtrl().isNullSafe()) {
+				return null;
+			}
+			throw new TemplateException("The target for method invoking can not be null, method name: " + methodName, location);
+		}
+		
+		Object[] argValues = exprList.evalExprList(scope);
+		MethodInfo methodInfo;
+		try {
+			methodInfo = MethodKit.getMethod(target.getClass(), methodName, argValues);
+		} catch (Exception e) {
+			throw new TemplateException(e.getMessage(), location, e);
+		}
+		if (methodInfo == null) {
+			if (scope.getCtrl().isNullSafe()) {
+				return null;
+			}
+			throw new TemplateException(buildMethodNotFoundSignature("Method not found: " + target.getClass().getName() + ".", methodName, argValues), location);
+		}
+		
+		try {
+			return methodInfo.invoke(target, argValues);
+		} catch (InvocationTargetException e) {
+			Throwable t = e.getTargetException();
+			if (t != null) {
+				throw new TemplateException(t.getMessage(), location, t);
+			} else {
+				throw new TemplateException(e.getMessage(), location, e);
+			}
+		} catch (Exception e) {
+			throw new TemplateException(e.getMessage(), location, e);
+		}
+	}
+	
+	static String buildMethodNotFoundSignature(String preMsg, String methodName, Object[] argValues) {
+		StringBuilder ret = new StringBuilder().append(preMsg).append(methodName).append("(");
+		if (argValues != null) {
+			for (int i = 0; i < argValues.length; i++) {
+				if (i > 0) {
+					ret.append(", ");
+				}
+				ret.append(argValues[i] != null ? argValues[i].getClass().getName() : "null");
+			}
+		}
+		return ret.append(")").toString();
+	}
+	
+	/*
+	public static Object invokeVarArgsMethod(java.lang.reflect.Method method, Object target, Object[] argValues) throws IllegalAccessException, IllegalArgumentException, InvocationTargetException {
+		Class<?>[] paraTypes = method.getParameterTypes();
+		Object[] finalArgValues = new Object[paraTypes.length];
+		
+		int fixedParaLength = paraTypes.length - 1;
+		System.arraycopy(argValues, 0, finalArgValues, 0, fixedParaLength);
+		Class<?> varParaComponentType = paraTypes[paraTypes.length - 1].getComponentType();
+		Object varParaValues = Array.newInstance(varParaComponentType, argValues.length - fixedParaLength);
+		int p = 0;
+		for (int i=fixedParaLength; i<argValues.length; i++) {
+			Array.set(varParaValues, p++, argValues[i]);
+		}
+		finalArgValues[paraTypes.length - 1] = varParaValues;
+		return method.invoke(target, finalArgValues);
+	}*/
+}
+
+
+
+
+