/*
 * 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.
 */

package org.apache.shardingsphere.core.rewrite.token.pojo;

import lombok.Getter;
import org.apache.shardingsphere.core.parse.sql.segment.dml.expr.ExpressionSegment;
import org.apache.shardingsphere.core.parse.sql.segment.dml.expr.complex.ComplexExpressionSegment;
import org.apache.shardingsphere.core.parse.sql.segment.dml.expr.simple.LiteralExpressionSegment;
import org.apache.shardingsphere.core.parse.sql.segment.dml.expr.simple.ParameterMarkerExpressionSegment;

/**
 * Insert cipher column token.
 *
 * @author panjuan
 */
@Getter
public final class SelectCipherColumnToken extends SQLToken implements Substitutable {
    
    private final int stopIndex;
    
    private final String cipherColumnName;
    
    private final ExpressionSegment cipherColumnValue;
    
    public SelectCipherColumnToken(final int startIndex, final int stopIndex, final String cipherColumnName, final ExpressionSegment cipherColumnValue) {
        super(startIndex);
        this.stopIndex = stopIndex;
        this.cipherColumnName = cipherColumnName;
        this.cipherColumnValue = cipherColumnValue;
    }
    
    @Override
    public String toString() {
        return String.format("%s = %s", cipherColumnName, getCipherColumnValue());
    }
    
    private String getCipherColumnValue() {
        if (cipherColumnValue instanceof ParameterMarkerExpressionSegment) {
            return "?";
        } else if (cipherColumnValue instanceof LiteralExpressionSegment) {
            Object literals = ((LiteralExpressionSegment) cipherColumnValue).getLiterals();
            return literals instanceof String ? String.format("'%s'", literals) : literals.toString();
        }
        return ((ComplexExpressionSegment) cipherColumnValue).getText();
    } 
}

add SelectCipherColumnToken.java