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}