com.liferay.dynamic.data.mapping.expression.model.FunctionCallExpression.java Source code

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Here is the source code for com.liferay.dynamic.data.mapping.expression.model.FunctionCallExpression.java

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/**
 * Copyright (c) 2000-present Liferay, Inc. All rights reserved.
 *
 * This library is free software; you can redistribute it and/or modify it under
 * the terms of the GNU Lesser General Public License as published by the Free
 * Software Foundation; either version 2.1 of the License, or (at your option)
 * any later version.
 *
 * This library is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
 * FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
 * details.
 */

package com.liferay.dynamic.data.mapping.expression.model;

import aQute.bnd.annotation.ProviderType;

import com.liferay.portal.kernel.util.StringPool;

import java.util.List;
import java.util.stream.Collectors;
import java.util.stream.Stream;

/**
 * @author Leonardo Barros
 */
@ProviderType
public class FunctionCallExpression extends Expression {

    public FunctionCallExpression(String functionName, List<Expression> parameterExpressions) {

        _functionName = functionName;
        _parameterExpressions = parameterExpressions;
    }

    @Override
    public <T> T accept(ExpressionVisitor<T> expressionVisitor) {
        return expressionVisitor.visit(this);
    }

    public int getArity() {
        return _parameterExpressions.size();
    }

    public String getFunctionName() {
        return _functionName;
    }

    public List<Expression> getParameterExpressions() {
        return _parameterExpressions;
    }

    @Override
    public String toString() {
        StringBuffer sb = new StringBuffer();

        sb.append(_functionName);
        sb.append("(");

        Stream<String> expressionStream = _parameterExpressions.stream().map(expression -> expression.toString());

        sb.append(expressionStream.collect(Collectors.joining(StringPool.COMMA_AND_SPACE)));

        sb.append(")");

        return sb.toString();
    }

    private final String _functionName;
    private final List<Expression> _parameterExpressions;

}