de.uniks.networkparser.ext.javafx.JsonArrayLazy Maven / Gradle / Ivy

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package de.uniks.networkparser.ext.javafx;

import de.uniks.networkparser.json.JsonArray;
import netscape.javascript.JSObject;

public class JsonArrayLazy extends JsonArray {
	private JSObject ref = null;
	private boolean loaded;

	public JsonArrayLazy(Object element) {
		if(element instanceof JSObject) {
			this.ref = (JSObject) element;
		}
	}


	public boolean lazyLoad() {
		if (this.ref == null) {
			return false;
		}
		if (this.loaded == false) {
			this.loaded = true;
		}
		else {
			return false;
		}
		int size = (int) this.ref.eval("this.length;");
		for (int i = 0; i < size; i++) {
			Object value = this.ref.eval("this[" + i + "]");
			if (value instanceof JSObject) {
				JSObject jsValue = (JSObject) value;
				boolean isArray = Boolean.parseBoolean("" + jsValue.eval("Array.isArray(this);"));

				if (isArray) {
					JsonArrayLazy child = new JsonArrayLazy(value);
					this.add(child);
					child.lazyLoad();
				}
				else {
					JsonObjectLazy child = new JsonObjectLazy(value);
					this.add(child);
					child.lazyLoad();
				}
			}
			else {
				this.add(value);
			}
		}
		return true;
	}
	
	@Override
	protected Object getByIndex(int offset, int index, int size) {
		Object result = super.getByIndex(offset, index, size);
		if(result != null ) {
			if(result instanceof JsonObjectLazy) {
				((JsonObjectLazy) result).lazyLoad();
			} else if(result instanceof JsonArrayLazy) {
				((JsonArrayLazy) result).lazyLoad();
			}
		}
		return result;
	}
}