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'rapiddweller Common' is an open source Java library forked from Databene Commons by Volker Bergmann. It provides extensions to the Java core library by utility classes, abstract concepts and concrete implementations.

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/*
 * Copyright (C) 2004-2015 Volker Bergmann ([email protected]).
 * All rights reserved.
 *
 * 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.rapiddweller.common.converter;

import com.rapiddweller.common.ConfigurationError;
import com.rapiddweller.common.ConversionException;
import com.rapiddweller.common.SystemInfo;

import java.io.UnsupportedEncodingException;

/**
 * Converts strings to byte arrays based on a character encoding, e.g. UTF-8.
 *
 * @author Volker Bergmann
 * @since 0.2.04
 */
public class String2ByteArrayConverter extends ThreadSafeConverter {

  private final String encoding;

  /**
   * Instantiates a new String 2 byte array converter.
   */
  public String2ByteArrayConverter() {
    this(SystemInfo.getFileEncoding());
  }

  /**
   * Instantiates a new String 2 byte array converter.
   *
   * @param encoding the encoding
   */
  public String2ByteArrayConverter(String encoding) {
    super(String.class, byte[].class);
    this.encoding = encoding;
  }

  @Override
  public byte[] convert(String sourceValue) throws ConversionException {
    try {
      return sourceValue.getBytes(encoding);
    } catch (UnsupportedEncodingException e) {
      throw new ConfigurationError(e);
    }
  }

}