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package org.unix4j.unix.head;

import org.unix4j.unix.Head;

/**
 * Factory for the {@link Head head} command returning 
 * a new command instance from every signature method.
 */
public final class HeadFactory implements Head.Interface {
	
	/**
	 * The singleton instance of this factory.
	 */
	public static final HeadFactory INSTANCE = new HeadFactory();

	/**
	 * Private, only used to create singleton instance.
	 */
	private HeadFactory() {
		super();
	}

	@Override
	public HeadCommand head() {
		final HeadArguments headArgs = new HeadArguments();
		return new HeadCommand(headArgs);
	}

	@Override
	public HeadCommand head(String... args) {
		final HeadArguments headArgs = new HeadArguments(args);
		return new HeadCommand(headArgs);
	}

	@Override
	public HeadCommand head(long count) {
		final HeadArguments headArgs = new HeadArguments();
		headArgs.setCount(count);
		return new HeadCommand(headArgs);
	}

	@Override
	public HeadCommand head(HeadOptions options, long count) {
		final HeadArguments headArgs = new HeadArguments(options);
		headArgs.setCount(count);
		return new HeadCommand(headArgs);
	}

	@Override
	public HeadCommand head(java.io.File... files) {
		final HeadArguments headArgs = new HeadArguments();
		headArgs.setFiles(files);
		return new HeadCommand(headArgs);
	}

	@Override
	public HeadCommand head(long count, java.io.File... files) {
		final HeadArguments headArgs = new HeadArguments();
		headArgs.setCount(count);
		headArgs.setFiles(files);
		return new HeadCommand(headArgs);
	}

	@Override
	public HeadCommand head(long count, String... paths) {
		final HeadArguments headArgs = new HeadArguments();
		headArgs.setCount(count);
		headArgs.setPaths(paths);
		return new HeadCommand(headArgs);
	}

	@Override
	public HeadCommand head(HeadOptions options, long count, java.io.File... files) {
		final HeadArguments headArgs = new HeadArguments(options);
		headArgs.setCount(count);
		headArgs.setFiles(files);
		return new HeadCommand(headArgs);
	}

	@Override
	public HeadCommand head(HeadOptions options, long count, String... paths) {
		final HeadArguments headArgs = new HeadArguments(options);
		headArgs.setCount(count);
		headArgs.setPaths(paths);
		return new HeadCommand(headArgs);
	}
}