MultiFormatWriter.java

/*
 * Copyright 2008 ZXing authors
 *
 * 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.google.zxing;

import com.google.zxing.common.BitMatrix;
import com.google.zxing.qrcode.QRCodeWriter;

import java.util.Map;

/**
 * This is a factory class which finds the appropriate Writer subclass for the BarcodeFormat
 * requested and encodes the barcode with the supplied contents.
 *
 * @author dswitkin@google.com (Daniel Switkin)
 */
public final class MultiFormatWriter implements Writer {

  @Override
  public BitMatrix encode(String contents,
                          BarcodeFormat format,
                          int width,
                          int height) throws WriterException {
    return encode(contents, format, width, height, null);
  }

  @Override
  public BitMatrix encode(String contents,
                          BarcodeFormat format,
                          int width, int height,
                          Map<EncodeHintType,?> hints) throws WriterException {

    Writer writer;
    switch (format) {
      case QR_CODE:
        writer = new QRCodeWriter();
        break;
      default:
        throw new IllegalArgumentException("No encoder available for format " + format);
    }
    return writer.encode(contents, format, width, height, hints);
  }

}