| 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.util.ArrayList; |
| import java.util.List; |
| |
| /** |
| * $Id$ |
| */ |
| public class ASTList |
| extends SimpleNode |
| implements NodeType |
| { |
| public ASTList( int id ) |
| { |
| super( id ); |
| } |
| |
| public ASTList( OgnlParser p, int id ) |
| { |
| super( p, id ); |
| } |
| |
| protected Object getValueBody( OgnlContext context, Object source ) |
| throws OgnlException |
| { |
| List answer = new ArrayList( jjtGetNumChildren() ); |
| for ( int i = 0; i < jjtGetNumChildren(); ++i ) |
| { |
| answer.add( children[i].getValue( context, source ) ); |
| } |
| return answer; |
| } |
| |
| public Class getGetterClass() |
| { |
| return null; |
| } |
| |
| public Class getSetterClass() |
| { |
| return null; |
| } |
| |
| public String toGetSourceString( OgnlContext context, Object target ) |
| { |
| String result = ""; |
| boolean array = false; |
| |
| if ( parent != null && ASTCtor.class.isInstance( parent ) && ( (ASTCtor) parent ).isArray() ) |
| { |
| |
| array = true; |
| } |
| |
| context.setCurrentType( List.class ); |
| context.setCurrentAccessor( List.class ); |
| |
| if ( !array ) |
| { |
| if ( jjtGetNumChildren() < 1 ) |
| { |
| return "java.util.Arrays.asList( new Object[0])"; |
| } |
| result += "java.util.Arrays.asList( new Object[] "; |
| } |
| |
| result += "{ "; |
| |
| try |
| { |
| |
| for ( int i = 0; i < jjtGetNumChildren(); ++i ) |
| { |
| if ( i > 0 ) |
| { |
| result = result + ", "; |
| } |
| |
| Class prevType = context.getCurrentType(); |
| |
| Object objValue = children[i].getValue( context, context.getRoot() ); |
| String value = children[i].toGetSourceString( context, target ); |
| |
| // to undo type setting of constants when used as method parameters |
| if ( ASTConst.class.isInstance( children[i] ) ) |
| { |
| |
| context.setCurrentType( prevType ); |
| } |
| |
| value = ExpressionCompiler.getRootExpression( children[i], target, context ) + value; |
| |
| String cast = ""; |
| if ( ExpressionCompiler.shouldCast( children[i] ) ) |
| { |
| |
| cast = (String) context.remove( ExpressionCompiler.PRE_CAST ); |
| } |
| if ( cast == null ) |
| { |
| cast = ""; |
| } |
| |
| if ( !ASTConst.class.isInstance( children[i] ) ) |
| { |
| value = cast + value; |
| } |
| Class ctorClass = (Class) context.get( "_ctorClass" ); |
| if ( array && ctorClass != null && !ctorClass.isPrimitive() ) |
| { |
| |
| Class valueClass = value != null ? value.getClass() : null; |
| if ( NodeType.class.isAssignableFrom( children[i].getClass() ) ) |
| { |
| valueClass = ( (NodeType) children[i] ).getGetterClass(); |
| } |
| final OgnlExpressionCompiler compiler = OgnlRuntime.getCompiler( context ); |
| if ( valueClass != null && ctorClass.isArray() ) |
| { |
| |
| value = |
| compiler |
| .createLocalReference( context, "(" + ExpressionCompiler.getCastString( ctorClass ) |
| + ")org.apache.commons.ognl.OgnlOps.toArray(" + value + ", " |
| + ctorClass.getComponentType().getName() + ".class, true)", ctorClass ); |
| |
| } |
| else if ( ctorClass.isPrimitive() ) |
| { |
| |
| Class wrapClass = OgnlRuntime.getPrimitiveWrapperClass( ctorClass ); |
| |
| value = |
| compiler |
| .createLocalReference( context, "((" + wrapClass.getName() |
| + ")org.apache.commons.ognl.OgnlOps.convertValue(" + value + "," |
| + wrapClass.getName() + ".class, true))." + OgnlRuntime.getNumericValueGetter( |
| wrapClass ), ctorClass ); |
| } |
| else if ( ctorClass != Object.class ) |
| { |
| |
| value = |
| compiler |
| .createLocalReference( context, "(" + ctorClass.getName() |
| + ")org.apache.commons.ognl.OgnlOps.convertValue(" + value + "," |
| + ctorClass.getName() + ".class)", ctorClass ); |
| |
| } |
| else if ( ( NodeType.class.isInstance( children[i] ) |
| && ( (NodeType) children[i] ).getGetterClass() != null |
| && Number.class.isAssignableFrom( ( (NodeType) children[i] ).getGetterClass() ) ) |
| || valueClass.isPrimitive() ) |
| { |
| |
| value = " ($w) (" + value + ")"; |
| } |
| else if ( valueClass.isPrimitive() ) |
| { |
| value = "($w) (" + value + ")"; |
| } |
| |
| } |
| else if ( ctorClass == null || !ctorClass.isPrimitive() ) |
| { |
| |
| value = " ($w) (" + value + ")"; |
| } |
| |
| if ( objValue == null || value.isEmpty() ) |
| { |
| value = "null"; |
| } |
| result += value; |
| } |
| |
| } |
| catch ( Throwable t ) |
| { |
| throw OgnlOps.castToRuntime( t ); |
| } |
| |
| context.setCurrentType( List.class ); |
| context.setCurrentAccessor( List.class ); |
| |
| result += "}"; |
| |
| if ( !array ) |
| { |
| result += ")"; |
| } |
| return result; |
| } |
| |
| public String toSetSourceString( OgnlContext context, Object target ) |
| { |
| throw new UnsupportedCompilationException( "Can't generate setter for ASTList." ); |
| } |
| |
| public <R, P> R accept( NodeVisitor<? extends R, ? super P> visitor, P data ) |
| throws OgnlException |
| { |
| return visitor.visit( this, data ); |
| } |
| } |