package aQute.bnd.make;

import java.io.*;
import java.net.*;
import java.util.*;

import aQute.bnd.service.*;
import aQute.lib.osgi.*;

public class MakeCopy implements MakePlugin {

    public Resource make(Builder builder, String destination,
            Map<String, String> 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.getBytes("UTF-8"),0);
        } else {

            File f = builder.getFile(from);
            if (f.isFile())
                return new FileResource(f);
            else {
                try {
                    URL url = new URL(from);
                    return new URLResource(url);
                } catch(MalformedURLException mfue) {
                    // We ignore this
                }
                throw new IllegalArgumentException(
                        "Copy source does not exist " + from
                                + " for destination " + destination);
            }
        }
    }

}