IfNode.java
/*
* Copyright 2004-2010 the Seasar Foundation and the Others.
*
* Licensed 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.
*/
package com.github.mygreen.splate.node;
import org.springframework.core.style.ToStringCreator;
import org.springframework.expression.EvaluationContext;
import org.springframework.expression.Expression;
import lombok.Getter;
import lombok.Setter;
/**
* {@code IF} コメント用の{@link Node}です。
*
* @version 0.2
* @author higa
* @author T.TSUCHIE
*/
public class IfNode extends ContainerNode {
/**
* {@code IF}コメント内の式
*/
@Getter
private final String expression;
/**
* パース済みの式
*/
private final Expression parsedExpression;
/**
* {@code ELSE}のノード
*/
@Getter
@Setter
private ElseNode elseNode;
/**
* 条件式を元に、Creates {@link IfNode}を作成します。
*
* @param position 位置情報
* @param expression 式
* @param parsedExpression パース済みの式
*/
public IfNode(final int position, final String expression, final Expression parsedExpression) {
super(position);
this.expression = expression;
this.parsedExpression = parsedExpression;
}
@Override
public void accept(final NodeProcessContext ctx) {
final EvaluationContext evaluationContext = ctx.getEvaluationContext();
boolean result = evaluateExpression(parsedExpression, evaluationContext, boolean.class, getPosition(), ctx.getParsedSql());
if (result) {
super.accept(ctx);
ctx.setEnabled(true);
} else if (elseNode != null) {
elseNode.accept(ctx);
ctx.setEnabled(true);
}
}
@Override
public String toString() {
return new ToStringCreator(this)
.append("position", getPosition())
.append("expression", expression)
.append("parsedExpression", parsedExpression)
.append("elseNode", elseNode)
.append("children", children)
.toString();
}
}