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SciJava Common is a shared library for SciJava software. It provides a plugin framework, with an extensible mechanism for service discovery, backed by its own annotation processor, so that plugins can be loaded dynamically. It is used by downstream projects in the SciJava ecosystem, such as ImageJ and SCIFIO.

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/*
 * #%L
 * SciJava Common shared library for SciJava software.
 * %%
 * Copyright (C) 2009 - 2017 Board of Regents of the University of
 * Wisconsin-Madison, Broad Institute of MIT and Harvard, and Max Planck
 * Institute of Molecular Cell Biology and Genetics.
 * %%
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 * 
 * 1. Redistributions of source code must retain the above copyright notice,
 *    this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright notice,
 *    this list of conditions and the following disclaimer in the documentation
 *    and/or other materials provided with the distribution.
 * 
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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 */

package org.scijava.command.console;

import java.util.LinkedList;
import java.util.Map;

import org.scijava.command.CommandInfo;
import org.scijava.command.CommandService;
import org.scijava.console.AbstractConsoleArgument;
import org.scijava.console.ConsoleArgument;
import org.scijava.console.ConsoleUtils;
import org.scijava.log.LogService;
import org.scijava.plugin.Parameter;
import org.scijava.plugin.Plugin;

/**
 * @deprecated Use {@link org.scijava.run.console.RunArgument} instead.
 */
@Deprecated
@Plugin(type = ConsoleArgument.class)
public class RunArgument extends AbstractConsoleArgument {

	@Parameter
	private CommandService commandService;

	@Parameter
	private LogService log;

	// -- Constructor --

	public RunArgument() {
		super(2, "--class");
	}

	// -- ConsoleArgument methods --

	@Override
	public void handle(final LinkedList args) {
		if (!supports(args))
			return;

		log.warn("The --class flag is deprecated, and will\n" +
			"be removed in a future release. Use --run instead.");

		args.removeFirst(); // --class
		final String commandToRun = args.removeFirst();
		final String paramString = ConsoleUtils.hasParam(args) ? args.removeFirst() : "";

		run(commandToRun, paramString);
	}

	// -- Typed methods --

	@Override
	public boolean supports(final LinkedList args) {
		if (!super.supports(args))
			return false;
		return getInfo(args.get(1)) != null;
	}

	// -- Helper methods --

	/** Implements the {@code --run} command line argument. */
	private void run(final String commandToRun, final String optionString) {
		// get the command info
		final CommandInfo info = getInfo(commandToRun);

		// couldn't find anything to run
		if (info == null)
			return;

		// TODO: parse the optionString a la ImageJ1
		final Map inputMap = ConsoleUtils.parseParameterString(optionString, info, log);

		try {
			commandService.run(info, true, inputMap).get();
		} catch (final Exception exc) {
			log.error(exc);
		}
	}

	/**
	 * Try to convert the given string to a {@link CommandInfo}
	 */
	private CommandInfo getInfo(final String commandToRun) {
		CommandInfo info = commandService.getCommand(commandToRun);
		if (info == null) {
			// command was not a class name; search for command by title instead
			final String label = commandToRun.replace('_', ' ');
			for (final CommandInfo ci : commandService.getCommands()) {
				if (label.equals(ci.getTitle())) {
					info = ci;
					break;
				}
			}
		}
		return info;
	}
}