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package aQute.bnd.make;

import java.io.File;
import java.net.MalformedURLException;
import java.net.URL;
import java.util.Map;

import aQute.bnd.osgi.Builder;
import aQute.bnd.osgi.EmbeddedResource;
import aQute.bnd.osgi.FileResource;
import aQute.bnd.osgi.Resource;
import aQute.bnd.service.MakePlugin;

public class MakeCopy implements MakePlugin {

	@Override
	public Resource make(Builder builder, String destination, Map argumentsOnMake) throws Exception {
		String type = argumentsOnMake.get("type");
		if (!type.equals("copy"))
			return null;

		String from = argumentsOnMake.get("from");
		if (from == null) {
			String content = argumentsOnMake.get("content");
			if (content == null)
				throw new IllegalArgumentException("No 'from' or 'content' field in copy " + argumentsOnMake);
			return new EmbeddedResource(content, 0L);
		}
		File f = builder.getFile(from);
		if (f.isFile())
			return new FileResource(f);
		try {
			URL url = new URL(from);
			return Resource.fromURL(url);
		} catch (MalformedURLException mfue) {
			// We ignore this
		}
		throw new IllegalArgumentException("Copy source does not exist " + from + " for destination " + destination);
	}

}