Add getter and setter for each command line option

src/main/java/com/glencoesoftware/pyramid/CompressionQualityConverter.java

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+/**
+ * Copyright (c) 2023 Glencoe Software, Inc. All rights reserved.
+ *
+ * This software is distributed under the terms described by the LICENSE.txt
+ * file you can find at the root of the distribution bundle.  If the file is
+ * missing please request a copy by contacting [email protected]
+ */
+
+package com.glencoesoftware.pyramid;
+
+import loci.formats.codec.CodecOptions;
+import loci.formats.codec.JPEG2000CodecOptions;
+
+import picocli.CommandLine.ITypeConverter;
+
+/**
+ * Convert a string to a CodecOptions.
+ */
+public class CompressionQualityConverter
+  implements ITypeConverter<CodecOptions>
+{
+  @Override
+  public CodecOptions convert(String value) throws Exception {
+    // JPEG2000CodecOptions used here as it's the only way to pass
+    // a quality value through to the JPEG-2000 codecs
+    // this could be changed later if/when we support options on other codecs
+    CodecOptions options = JPEG2000CodecOptions.getDefaultOptions();
+    options.quality = Double.parseDouble(value);
+    return options;
+  }
+}

src/main/java/com/glencoesoftware/pyramid/CompressionType.java

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+/**
+ * Copyright (c) 2019-2020 Glencoe Software, Inc. All rights reserved.
+ *
+ * This software is distributed under the terms described by the LICENSE.txt
+ * file you can find at the root of the distribution bundle.  If the file is
+ * missing please request a copy by contacting [email protected]
+ */
+package com.glencoesoftware.pyramid;
+
+import java.util.EnumSet;
+import loci.formats.out.TiffWriter;
+import loci.formats.tiff.TiffCompression;
+
+/**
+ * List of valid compression types for the output OME-TIFF file.
+ */
+public enum CompressionType {
+  UNCOMPRESSED(
+    TiffWriter.COMPRESSION_UNCOMPRESSED, TiffCompression.UNCOMPRESSED),
+  LZW(TiffWriter.COMPRESSION_LZW, TiffCompression.LZW),
+  JPEG(TiffWriter.COMPRESSION_JPEG, TiffCompression.JPEG),
+  JPEG_2000(TiffWriter.COMPRESSION_J2K, TiffCompression.JPEG_2000),
+  JPEG_2000_LOSSY(
+    TiffWriter.COMPRESSION_J2K_LOSSY, TiffCompression.JPEG_2000_LOSSY);
+
+  private String compressionName;
+  private TiffCompression compressionType;
+
+  /**
+   * Construct a list of valid compression types.
+   *
+   * @param name compression name (used in command line arguments)
+   * @param type corresponding TIFF compression
+   */
+  private CompressionType(String name, TiffCompression type) {
+    compressionName = name;
+    compressionType = type;
+  }
+
+  /**
+   * Find the compression corresponding to the given name.
+   * If there is no matching name, return the uncompressed type.
+   *
+   * @param compressionName desired compression name
+   * @return corresponding CompressionType, or UNCOMPRESSED if no match
+   */
+  public static CompressionType lookup(String compressionName) {
+    for (CompressionType t : EnumSet.allOf(CompressionType.class)) {
+      if (t.getName().equals(compressionName)) {
+        return t;
+      }
+    }
+    return UNCOMPRESSED;
+  }
+
+  /**
+   * @return name of this compression type
+   */
+  public String getName() {
+    return compressionName;
+  }
+
+  /**
+   * @return TiffCompression for this compression type
+   */
+  public TiffCompression getTIFFCompression() {
+    return compressionType;
+  }
+
+}

src/main/java/com/glencoesoftware/pyramid/CompressionTypeConverter.java

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+/**
+ * Copyright (c) 2023 Glencoe Software, Inc. All rights reserved.
+ *
+ * This software is distributed under the terms described by the LICENSE.txt
+ * file you can find at the root of the distribution bundle.  If the file is
+ * missing please request a copy by contacting [email protected]
+ */
+
+package com.glencoesoftware.pyramid;
+
+import picocli.CommandLine.ITypeConverter;
+
+/**
+ * Convert a string to a CompressionType.
+ */
+public class CompressionTypeConverter
+  implements ITypeConverter<CompressionType>
+{
+  @Override
+  public CompressionType convert(String value) throws Exception {
+    return CompressionType.lookup(value);
+  }
+}