| 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; |
| import org.apache.commons.ognl.enhance.UnsupportedCompilationException; |
| |
| import java.lang.reflect.Method; |
| |
| /** |
| * $Id$ |
| */ |
| public class ASTStaticMethod |
| extends SimpleNode |
| implements NodeType |
| { |
| |
| private String className; |
| |
| private String methodName; |
| |
| private Class getterClass; |
| |
| public ASTStaticMethod( int id ) |
| { |
| super( id ); |
| } |
| |
| public ASTStaticMethod( OgnlParser p, int id ) |
| { |
| super( p, id ); |
| } |
| |
| /** |
| * Called from parser action. |
| */ |
| void init( String className, String methodName ) |
| { |
| this.className = className; |
| this.methodName = methodName; |
| } |
| |
| protected Object getValueBody( OgnlContext context, Object source ) |
| throws OgnlException |
| { |
| Object[] args = new Object[jjtGetNumChildren()]; |
| Object root = context.getRoot(); |
| |
| for ( int i = 0, icount = args.length; i < icount; ++i ) |
| { |
| args[i] = children[i].getValue( context, root ); |
| } |
| |
| return OgnlRuntime.callStaticMethod( context, className, methodName, args ); |
| } |
| |
| public Class getGetterClass() |
| { |
| return getterClass; |
| } |
| |
| public Class getSetterClass() |
| { |
| return getterClass; |
| } |
| |
| public String toGetSourceString( OgnlContext context, Object target ) |
| { |
| String result = className + "#" + methodName + "("; |
| |
| try |
| { |
| Class clazz = OgnlRuntime.classForName( context, className ); |
| Method m = OgnlRuntime.getMethod( context, clazz, methodName, children, true ); |
| |
| if ( m == null ) |
| { |
| throw new UnsupportedCompilationException( |
| "Unable to find class/method combo " + className + " / " + methodName ); |
| } |
| |
| if ( !context.getMemberAccess().isAccessible( context, clazz, m, methodName ) ) |
| { |
| throw new UnsupportedCompilationException( |
| "Method is not accessible, check your jvm runtime security settings. " + "For static class method " |
| + className + " / " + methodName ); |
| } |
| |
| OgnlExpressionCompiler compiler = OgnlRuntime.getCompiler( context ); |
| if ( ( children != null ) && ( children.length > 0 ) ) |
| { |
| Class[] parms = m.getParameterTypes(); |
| |
| for ( int i = 0; i < children.length; i++ ) |
| { |
| if ( i > 0 ) |
| { |
| result = result + ", "; |
| } |
| |
| Class prevType = context.getCurrentType(); |
| |
| Node child = children[i]; |
| Object root = context.getRoot(); |
| |
| String parmString = ASTMethodUtil.getParmString( context, root, child, prevType ); |
| |
| Class valueClass = ASTMethodUtil.getValueClass( context, root, child ); |
| |
| if ( valueClass != parms[i] ) |
| { |
| if ( parms[i].isArray() ) |
| { |
| parmString = compiler.createLocalReference( context, "(" + ExpressionCompiler.getCastString( |
| parms[i] ) + ")org.apache.commons.ognl.OgnlOps.toArray(" + parmString + ", " |
| + parms[i].getComponentType().getName() + ".class, true)", parms[i] ); |
| |
| } |
| else if ( parms[i].isPrimitive() ) |
| { |
| Class wrapClass = OgnlRuntime.getPrimitiveWrapperClass( parms[i] ); |
| |
| parmString = compiler.createLocalReference( context, "((" + wrapClass.getName() |
| + ")org.apache.commons.ognl.OgnlOps.convertValue(" + parmString + "," |
| + wrapClass.getName() + ".class, true))." + OgnlRuntime.getNumericValueGetter( |
| wrapClass ), parms[i] ); |
| |
| } |
| else if ( parms[i] != Object.class ) |
| { |
| parmString = compiler.createLocalReference( context, "(" + parms[i].getName() |
| + ")org.apache.commons.ognl.OgnlOps.convertValue(" + parmString + "," |
| + parms[i].getName() + ".class)", parms[i] ); |
| } |
| else if ( ( NodeType.class.isInstance( child ) && ( (NodeType) child ).getGetterClass() != null |
| && Number.class.isAssignableFrom( ( (NodeType) child ).getGetterClass() ) ) |
| || valueClass.isPrimitive() ) |
| { |
| parmString = " ($w) " + parmString; |
| } |
| else if ( valueClass.isPrimitive() ) |
| { |
| parmString = "($w) " + parmString; |
| } |
| } |
| |
| result += parmString; |
| } |
| } |
| |
| result += ")"; |
| |
| try |
| { |
| Object contextObj = getValueBody( context, target ); |
| context.setCurrentObject( contextObj ); |
| } |
| catch ( Throwable t ) |
| { |
| // ignore |
| } |
| |
| if ( m != null ) |
| { |
| getterClass = m.getReturnType(); |
| |
| context.setCurrentType( m.getReturnType() ); |
| context.setCurrentAccessor( compiler.getSuperOrInterfaceClass( m, m.getDeclaringClass() ) ); |
| } |
| |
| } |
| catch ( Throwable t ) |
| { |
| throw OgnlOps.castToRuntime( t ); |
| } |
| |
| return result; |
| } |
| |
| public String toSetSourceString( OgnlContext context, Object target ) |
| { |
| return toGetSourceString( context, target ); |
| } |
| |
| public <R, P> R accept( NodeVisitor<? extends R, ? super P> visitor, P data ) |
| throws OgnlException |
| { |
| return visitor.visit( this, data ); |
| } |
| |
| /** |
| * Get the class name for this method. |
| * |
| * @return the class name. |
| * @since 4.0 |
| */ |
| public String getClassName() |
| { |
| return className; |
| } |
| |
| /** |
| * Get the method name for this method. |
| * |
| * @return the method name. |
| * @since 4.0 |
| */ |
| public String getMethodName() |
| { |
| return methodName; |
| } |
| } |