Quelle AstInteger.java Sprache: JAVA

/*
* 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.
*/
/* Generated By:JJTree: Do not edit this line. AstInteger.java */
package org.apache.el.parser;

import java.math.BigInteger;

import jakarta.el.ELException;

import org.apache.el.lang.EvaluationContext;

/**
* @author Jacob Hookom [jacob@hookom.net]
*/
public final class AstInteger extends SimpleNode {
    public AstInteger(int id) {
        super(id);
    }

    private volatile Number number;

    protected Number getInteger() {
        // The parser should ensure the format of the string to be parsed
        if (this.number == null) {
            try {
                try {
                    this.number = Long.valueOf(this.image);
                } catch (NumberFormatException ignore) {
                    // Too large for Long. Try BigInteger.
                    this.number = new BigInteger(this.image);
                }
            } catch (ArithmeticException | NumberFormatException e) {
                // Too big for BigInteger.
                // Catch NumberFormatException as well here just in case the
                // parser provides invalid input.
                throw new ELException(e);
            }
        }
        return number;
    }

    @Override
    public Class<?> getType(EvaluationContext ctx)
            throws ELException {
        return this.getInteger().getClass();
    }

    @Override
    public Object getValue(EvaluationContext ctx)
            throws ELException {
        return this.getInteger();
    }
}

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