Method fromExternal

src/main/java/fieldbox/io/IO.java:396–470

(External ex, Map<String, Box> specialBoxes)

	private void fromExternal(External ex, Map<String, Box> specialBoxes) {

		File dataFile = filenameFor(ex.dataFile);

		String currentPrefix = dataFile.getParent();

		Map<String, List<Object>> options = null;
		if (pluginList != null) try {
			options = pluginList.read(dataFile.getAbsolutePath(), false);
			pluginList.interpretClassPathAndOptions(options);
		} catch (Throwable e) {
			Log.log("io.error", () -> "trouble loading external " + dataFile + ". Corrupt file?");
			System.err.println(" io error : trouble loading external " + dataFile + ". corrupt?");
			e.printStackTrace();
		}

		try {
			Class c = this.getClass()
				.getClassLoader()
				.loadClass(ex.boxClass);
			try {
				Constructor<Box> cc = c.getDeclaredConstructor();
				cc.setAccessible(true);
				ex.box = cc.newInstance();
				ex.box.properties.put(desiredBoxClass, ex.boxClass);
			} catch (NoSuchMethodException e) {
				Constructor<Box> cc = c.getDeclaredConstructor(Box.class);
				cc.setAccessible(true);
				ex.box = cc.newInstance(specialBoxes.get(">>root<<"));
			}
		} catch (Throwable e) {
			Log.log("io.error", () -> " while looking for class <" + ex.boxClass + "> needed for <" + ex.id + " / " + ex.textFiles + "> an exception was thrown");
			Log.log("io.error", () -> e);
			Log.log("io.error", () -> " will proceed with just a vanilla Box class, but custom behavior will be lost ");
			ex.box = new Box();

			ex.box.properties.put(desiredBoxClass, ex.boxClass);
		}

		for (Map.Entry<String, String> e : ex.textFiles.entrySet()) {
			File filename = filenameFor(currentPrefix, e.getValue());
			String text = readFromFile(filename);
			ex.box.properties.put(new Dict.Prop<String>(e.getKey()), text);
		}


		String read = readFromFile(dataFile);
		if (read != null) {
			try {
				Map<?, ?> m = (Map) serializeFromString(read);
				for (Map.Entry<?, ?> entry : m.entrySet()) {
					Dict.Prop p = new Dict.Prop((String) entry.getKey());
					p.toCanon().getAttributes().put(persistent, true);
					ex.box.properties.put(p, entry.getValue());
				}
			} catch (Exception e) {
				Log.log("io.error", () -> "trouble loading external " + dataFile + ". Corrupt file?");
				e.printStackTrace();
			}
		}