# HG changeset patch
# User František Kučera <franta-hg@frantovo.cz>
# Date 1416171423 -3600
# Node ID e417b37e6c08f13ce66d01e5b5a80cc771056575
# Parent  0568271a1174e26bc6e0b4ca0f94e284deab917a
options, parser

diff -r 0568271a1174 -r e417b37e6c08 .hgignore
--- a/.hgignore	Sun Nov 16 19:41:41 2014 +0100
+++ b/.hgignore	Sun Nov 16 21:57:03 2014 +0100
@@ -4,4 +4,4 @@
 
 syntax: regexp
 
-^java/copy-image-resizer/(dist|build|private)/
+^java/copy-image-resizer/(dist|build|nbproject/private)/
diff -r 0568271a1174 -r e417b37e6c08 java/copy-image-resizer/nbproject/private/private.xml
--- a/java/copy-image-resizer/nbproject/private/private.xml	Sun Nov 16 19:41:41 2014 +0100
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,9 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<project-private xmlns="http://www.netbeans.org/ns/project-private/1">
-    <editor-bookmarks xmlns="http://www.netbeans.org/ns/editor-bookmarks/2" lastBookmarkId="0"/>
-    <open-files xmlns="http://www.netbeans.org/ns/projectui-open-files/2">
-        <group name="arbes">
-            <file>file:/home/fiki/projekty/copy-image-resizer/copy-image-resizer/java/copy-image-resizer/src/cz/frantovo/copyImageResizer/CLIResizer.java</file>
-        </group>
-    </open-files>
-</project-private>
diff -r 0568271a1174 -r e417b37e6c08 java/copy-image-resizer/src/cz/frantovo/copyImageResizer/CLIOptions.java
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/java/copy-image-resizer/src/cz/frantovo/copyImageResizer/CLIOptions.java	Sun Nov 16 21:57:03 2014 +0100
@@ -0,0 +1,91 @@
+/**
+ * copy-image-resizer
+ * Copyright © 2014 František Kučera (frantovo.cz)
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+package cz.frantovo.copyImageResizer;
+
+import java.io.File;
+import java.util.ArrayList;
+import java.util.Collection;
+
+/**
+ *
+ * @author Ing. František Kučera (frantovo.cz)
+ */
+public class CLIOptions {
+
+	/**
+	 * Source directory
+	 */
+	private File input;
+	/**
+	 * Output directory
+	 */
+	private File output;
+	/**
+	 * Image resolutions to create
+	 */
+	private final Collection<SizeSpecification> sizes = new ArrayList<>();
+
+	public File getSourceDir() {
+		return input;
+	}
+
+	public void setInput(File input) {
+		this.input = input;
+	}
+
+	public File getDestinationDir() {
+		return output;
+	}
+
+	public void setOutput(File output) {
+		this.output = output;
+	}
+
+	public Collection<SizeSpecification> getSizes() {
+		return sizes;
+	}
+
+	public void addSize(SizeSpecification size) {
+		sizes.add(size);
+	}
+
+	public static class SizeSpecification {
+
+		private final int width;
+		private final int height;
+		private final String directory;
+
+		public SizeSpecification(int width, int height, String directory) {
+			this.width = width;
+			this.height = height;
+			this.directory = directory;
+		}
+
+		public int getWidth() {
+			return width;
+		}
+
+		public int getHeight() {
+			return height;
+		}
+
+		public String getDirectory() {
+			return directory;
+		}
+	}
+}
diff -r 0568271a1174 -r e417b37e6c08 java/copy-image-resizer/src/cz/frantovo/copyImageResizer/CLIParser.java
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/java/copy-image-resizer/src/cz/frantovo/copyImageResizer/CLIParser.java	Sun Nov 16 21:57:03 2014 +0100
@@ -0,0 +1,139 @@
+/**
+ * copy-image-resizer
+ * Copyright © 2014 František Kučera (frantovo.cz)
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+package cz.frantovo.copyImageResizer;
+
+import java.io.File;
+import java.util.Arrays;
+import java.util.Collection;
+
+/**
+ *
+ * @author Ing. František Kučera (frantovo.cz)
+ */
+public class CLIParser {
+
+	public CLIOptions parseOptions(String[] args) throws CLIParserException {
+		CLIOptions options = new CLIOptions();
+
+		for (int i = 0; i < args.length; i++) {
+			String arg = args[i];
+
+			boolean matches = false;
+
+			for (Token t : Token.values()) {
+				if (t.matches(arg)) {
+					int parsedArgs = t.parse(args, i, options);
+					i = i + parsedArgs;
+					matches = true;
+				}
+			}
+
+			if (!matches) {
+				throw new CLIParserException("Unknown option: " + arg);
+			}
+		}
+
+		return options;
+	}
+
+	private static String fetchNext(String[] args, int index) throws CLIParserException {
+		if (index < args.length) {
+			return args[index];
+		} else {
+			throw new CLIParserException("Expecting value for option: " + args[index - 1]);
+		}
+	}
+
+	private static enum Token {
+
+		INPUT_DIR("--input-dir") { // bash-completion: option
+					@Override
+					public int parse(String[] args, int index, CLIOptions options) throws CLIParserException {
+						int originalIndex = index;
+						String name = fetchNext(args, ++index);
+						options.setInput(new File(name));
+						return index - originalIndex;
+					}
+				},
+		OUTPUT_DIR("--output-dir") { // bash-completion: option
+					@Override
+					public int parse(String[] args, int index, CLIOptions options) throws CLIParserException {
+						int originalIndex = index;
+						String name = fetchNext(args, ++index);
+						options.setOutput(new File(name));
+						return index - originalIndex;
+					}
+				},
+		SIZE("--size") { // bash-completion: option
+					@Override
+					public int parse(String[] args, int index, CLIOptions options) throws CLIParserException {
+						int originalIndex = index;
+						int width = parseInt(fetchNext(args, ++index));
+						int height = parseInt(fetchNext(args, ++index));
+						String directory = width + "x" + height;
+						options.addSize(new CLIOptions.SizeSpecification(width, height, directory));
+						return index - originalIndex;
+					}
+				},
+		SIZE_NAMED("--size-named") { // bash-completion: option
+					@Override
+					public int parse(String[] args, int index, CLIOptions options) throws CLIParserException {
+						int originalIndex = index;
+						int width = parseInt(fetchNext(args, ++index));
+						int height = parseInt(fetchNext(args, ++index));
+						String directory = fetchNext(args, ++index);
+						options.addSize(new CLIOptions.SizeSpecification(width, height, directory));
+						return index - originalIndex;
+					}
+				};
+
+		private final Collection<String> options;
+
+		private Token(String... options) {
+			this.options = Arrays.asList(options);
+		}
+
+		/**
+		 * @param option e.g. „--input-file“
+		 * @return whether option is this token
+		 */
+		public boolean matches(String option) {
+			return options.contains(option);
+		}
+
+		private static int parseInt(String number) throws CLIParserException {
+			try {
+				return Integer.parseInt(number);
+			} catch (Exception e) {
+				throw new CLIParserException("Unable to parse integer: " + number, e);
+			}
+		}
+
+		/**
+		 * Parse String arguments and fill values into the options object.
+		 *
+		 * @param args CLI arguments
+		 * @param index index of the option matched by this token, like „--input-file“
+		 * @param options object to be filled
+		 * @return number of parsed arguments – if option has no arguments (just boolean flag),
+		 * return 0, otherwise return positive integer: number of eaten arguments.
+		 * @throws CLIParserException
+		 */
+		public abstract int parse(String[] args, int index, CLIOptions options) throws CLIParserException;
+	}
+}
diff -r 0568271a1174 -r e417b37e6c08 java/copy-image-resizer/src/cz/frantovo/copyImageResizer/CLIParserException.java
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/java/copy-image-resizer/src/cz/frantovo/copyImageResizer/CLIParserException.java	Sun Nov 16 21:57:03 2014 +0100
@@ -0,0 +1,41 @@
+/**
+ * copy-image-resizer
+ * Copyright © 2014 František Kučera (frantovo.cz)
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+package cz.frantovo.copyImageResizer;
+
+/**
+ *
+ * @author Ing. František Kučera (frantovo.cz)
+ */
+public class CLIParserException extends CopyImageResizerException {
+
+	public CLIParserException() {
+	}
+
+	public CLIParserException(String message) {
+		super(message);
+	}
+
+	public CLIParserException(Throwable cause) {
+		super(cause);
+	}
+
+	public CLIParserException(String message, Throwable cause) {
+		super(message, cause);
+	}
+
+}
diff -r 0568271a1174 -r e417b37e6c08 java/copy-image-resizer/src/cz/frantovo/copyImageResizer/CLIResizer.java
--- a/java/copy-image-resizer/src/cz/frantovo/copyImageResizer/CLIResizer.java	Sun Nov 16 19:41:41 2014 +0100
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,34 +0,0 @@
-/**
- * copy-image-resizer
- * Copyright © 2014 František Kučera (frantovo.cz)
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program 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 General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- */
-package cz.frantovo.copyImageResizer;
-
-/**
- *
- * @author Ing. František Kučera (frantovo.cz)
- */
-public class CLIResizer {
-
-	/**
-	 * @param args the command line arguments
-	 */
-	public static void main(String[] args) {
-		// TODO code application logic here
-		System.out.println("TODO");
-	}
-	
-}
diff -r 0568271a1174 -r e417b37e6c08 java/copy-image-resizer/src/cz/frantovo/copyImageResizer/CLIStarter.java
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/java/copy-image-resizer/src/cz/frantovo/copyImageResizer/CLIStarter.java	Sun Nov 16 21:57:03 2014 +0100
@@ -0,0 +1,34 @@
+/**
+ * copy-image-resizer
+ * Copyright © 2014 František Kučera (frantovo.cz)
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+package cz.frantovo.copyImageResizer;
+
+/**
+ *
+ * @author Ing. František Kučera (frantovo.cz)
+ */
+public class CLIStarter {
+
+	/**
+	 * @param args the command line arguments
+	 */
+	public static void main(String[] args) {
+		// TODO code application logic here
+		System.out.println("TODO");
+	}
+	
+}
diff -r 0568271a1174 -r e417b37e6c08 java/copy-image-resizer/src/cz/frantovo/copyImageResizer/CopyImageResizerException.java
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/java/copy-image-resizer/src/cz/frantovo/copyImageResizer/CopyImageResizerException.java	Sun Nov 16 21:57:03 2014 +0100
@@ -0,0 +1,41 @@
+/**
+ * copy-image-resizer
+ * Copyright © 2014 František Kučera (frantovo.cz)
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+package cz.frantovo.copyImageResizer;
+
+/**
+ *
+ * @author Ing. František Kučera (frantovo.cz)
+ */
+public class CopyImageResizerException extends Exception {
+
+	public CopyImageResizerException() {
+	}
+
+	public CopyImageResizerException(String message) {
+		super(message);
+	}
+
+	public CopyImageResizerException(Throwable cause) {
+		super(cause);
+	}
+
+	public CopyImageResizerException(String message, Throwable cause) {
+		super(message, cause);
+	}
+
+}