001/** 002 * Licensed to the Apache Software Foundation (ASF) under one or more 003 * contributor license agreements. See the NOTICE file distributed with 004 * this work for additional information regarding copyright ownership. 005 * The ASF licenses this file to You under the Apache License, Version 2.0 006 * (the "License"); you may not use this file except in compliance with 007 * the License. You may obtain a copy of the License at 008 * 009 * http://www.apache.org/licenses/LICENSE-2.0 010 * 011 * Unless required by applicable law or agreed to in writing, software 012 * distributed under the License is distributed on an "AS IS" BASIS, 013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 014 * See the License for the specific language governing permissions and 015 * limitations under the License. 016 */ 017package org.apache.camel.language.simple.ast; 018 019import org.apache.camel.Expression; 020import org.apache.camel.builder.ExpressionBuilder; 021import org.apache.camel.language.simple.types.SimpleToken; 022 023/** 024 * Represents literals in the AST. 025 */ 026public class LiteralExpression extends BaseSimpleNode implements LiteralNode { 027 028 protected StringBuilder text = new StringBuilder(); 029 030 public LiteralExpression(SimpleToken token) { 031 super(token); 032 } 033 034 @Override 035 public String toString() { 036 return getText(); 037 } 038 039 @Override 040 public void addText(String text) { 041 this.text.append(text); 042 } 043 044 @Override 045 public String getText() { 046 return text.toString(); 047 } 048 049 @Override 050 public boolean quoteEmbeddedNodes() { 051 // we should quote embedded nodes if using the bean function as the nodes can be parameters 052 // to a bean method call so we want to ensure their parameter value is quoted to avoid parsing 053 // issues with commas in parameter values being mixed up with commas used for parameter separator 054 return text.toString().startsWith("bean:"); 055 } 056 057 @Override 058 public Expression createExpression(String expression) { 059 return ExpressionBuilder.constantExpression(getText()); 060 } 061}