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/*
 * Copyright 2023 Arcade Data Ltd
 *
 * 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 com.arcadedb.query.sql.method.string;

import com.arcadedb.database.Identifiable;
import com.arcadedb.query.sql.executor.CommandContext;
import com.arcadedb.query.sql.method.AbstractSQLMethod;

/**
 * Returns the string length.
 *
 * @author Johann Sorel (Geomatys)
 * @author Luca Garulli (l.garulli--(at)--gmail.com)
 */
public class SQLMethodLength extends AbstractSQLMethod {

  public static final String NAME = "length";

  public SQLMethodLength() {
    super(NAME, 0, 0);
  }

  @Override
  public String getSyntax() {
    return "length()";
  }

  @Override
  public Object execute( final Object iThis, final Identifiable iCurrentRecord, final CommandContext iContext, final Object ioResult, final Object[] iParams) {
    if (iThis == null)
      return 0;

    return iThis.toString().length();
  }
}