| package org.apache.commons.ognl; |
| |
| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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. |
| */ |
| |
| import org.apache.commons.ognl.enhance.ExpressionCompiler; |
| import org.apache.commons.ognl.enhance.OgnlExpressionCompiler; |
| |
| |
| /** |
| * $Id$ |
| */ |
| class ASTMethodUtil |
| { |
| |
| private ASTMethodUtil() |
| { |
| } |
| |
| static String getParmString( OgnlContext context, Object root, Node child, Class prevType ) |
| throws OgnlException |
| { |
| String parmString = child.toGetSourceString( context, root ); |
| |
| if ( parmString == null || parmString.trim().length() < 1 ) |
| { |
| parmString = "null"; |
| } |
| |
| // to undo type setting of constants when used as method parameters |
| if ( ASTConst.class.isInstance( child ) ) |
| { |
| context.setCurrentType( prevType ); |
| } |
| |
| parmString = ExpressionCompiler.getRootExpression( child, root, context ) + parmString; |
| |
| String cast = ""; |
| if ( ExpressionCompiler.shouldCast( child ) ) |
| { |
| cast = (String) context.remove( ExpressionCompiler.PRE_CAST ); |
| } |
| |
| if ( cast == null ) |
| { |
| cast = ""; |
| } |
| |
| if ( !ASTConst.class.isInstance( child ) ) |
| { |
| parmString = cast + parmString; |
| } |
| return parmString; |
| } |
| |
| static Class getValueClass( OgnlContext context, Object root, Node child ) |
| throws OgnlException |
| { |
| Object value = child.getValue( context, root ); |
| Class valueClass = value != null ? value.getClass() : null; |
| if ( NodeType.class.isAssignableFrom( child.getClass() ) ) |
| { |
| valueClass = ( (NodeType) child ).getGetterClass(); |
| } |
| return valueClass; |
| } |
| |
| static String getParmString( OgnlContext context, Class parm, String parmString, Node child, Class valueClass, |
| String endParam ) |
| { |
| OgnlExpressionCompiler compiler = OgnlRuntime.getCompiler( context ); |
| if ( parm.isArray() ) |
| { |
| parmString = compiler.createLocalReference( context, "(" + ExpressionCompiler.getCastString( parm ) |
| + ")org.apache.commons.ognl.OgnlOps#toArray(" + parmString + ", " + parm.getComponentType().getName() |
| + endParam, parm ); |
| |
| } |
| else if ( parm.isPrimitive() ) |
| { |
| Class wrapClass = OgnlRuntime.getPrimitiveWrapperClass( parm ); |
| |
| parmString = compiler.createLocalReference( context, "((" + wrapClass.getName() |
| + ")org.apache.commons.ognl.OgnlOps#convertValue(" + parmString + "," + wrapClass.getName() |
| + ".class, true))." + OgnlRuntime.getNumericValueGetter( wrapClass ), parm ); |
| |
| } |
| else if ( parm != Object.class ) |
| { |
| parmString = compiler.createLocalReference( context, "(" + parm.getName() |
| + ")org.apache.commons.ognl.OgnlOps#convertValue(" + parmString + "," + parm.getName() + ".class)", |
| parm ); |
| |
| } |
| else if ( ( NodeType.class.isInstance( child ) && ( (NodeType) child ).getGetterClass() != null |
| && Number.class.isAssignableFrom( ( (NodeType) child ).getGetterClass() ) ) || ( valueClass != null |
| && valueClass.isPrimitive() ) ) |
| { |
| parmString = " ($w) " + parmString; |
| } |
| else if ( valueClass != null && valueClass.isPrimitive() ) |
| { |
| parmString = "($w) " + parmString; |
| } |
| return parmString; |
| } |
| } |