| 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.OrderedReturn; |
| import org.apache.commons.ognl.enhance.UnsupportedCompilationException; |
| |
| /** |
| * $Id$ |
| */ |
| public class ASTVarRef |
| extends SimpleNode |
| implements NodeType, OrderedReturn |
| { |
| |
| private String name; |
| |
| protected Class getterClass; |
| |
| protected String core; |
| |
| protected String last; |
| |
| public ASTVarRef( int id ) |
| { |
| super( id ); |
| } |
| |
| public ASTVarRef( OgnlParser p, int id ) |
| { |
| super( p, id ); |
| } |
| |
| void setName( String name ) |
| { |
| this.name = name; |
| } |
| /** |
| * Get the variable name. |
| * |
| * @return the variable name. |
| * @since 4.0 |
| */ |
| String getName() |
| { |
| return name; |
| } |
| |
| protected Object getValueBody( OgnlContext context, Object source ) |
| throws OgnlException |
| { |
| return context.get( name ); |
| } |
| |
| protected void setValueBody( OgnlContext context, Object target, Object value ) |
| throws OgnlException |
| { |
| context.put( name, value ); |
| } |
| |
| public Class getGetterClass() |
| { |
| return getterClass; |
| } |
| |
| public Class getSetterClass() |
| { |
| return null; |
| } |
| |
| public String getCoreExpression() |
| { |
| return core; |
| } |
| |
| public String getLastExpression() |
| { |
| return last; |
| } |
| |
| public String toGetSourceString( OgnlContext context, Object target ) |
| { |
| Object value = context.get( name ); |
| |
| if ( value != null ) |
| { |
| |
| getterClass = value.getClass(); |
| } |
| |
| context.setCurrentType( getterClass ); |
| context.setCurrentAccessor( context.getClass() ); |
| |
| context.setCurrentObject( value ); |
| // context.setRoot(context.get(name)); |
| |
| if ( context.getCurrentObject() == null ) |
| { |
| throw new UnsupportedCompilationException( "Current context object is null, can't compile var reference." ); |
| } |
| |
| String pre = ""; |
| String post = ""; |
| if ( context.getCurrentType() != null ) |
| { |
| pre = "((" + OgnlRuntime.getCompiler( context ).getInterfaceClass( context.getCurrentType() ).getName() + ")"; |
| post = ")"; |
| } |
| |
| if ( parent != null && parent instanceof ASTAssign) |
| { |
| core = "$1.put(\"" + name + "\","; |
| last = pre + "$1.get(\"" + name + "\")" + post; |
| |
| return core; |
| } |
| |
| return pre + "$1.get(\"" + name + "\")" + post; |
| } |
| |
| 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 ); |
| } |
| } |