OPSResource.java

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package com.adobe.dp.epub.opf;

import java.io.IOException;
import java.io.OutputStream;
import java.util.Stack;
import java.util.Vector;

import com.adobe.dp.epub.io.DataSource;
import com.adobe.dp.epub.ops.OPSDocument;

public class OPSResource extends Resource {

	
	OPSDocument document;

	OPSResource(Publication epub, String name) {
		super(epub, name, "application/xhtml+xml", null);
	}

	OPSResource(Publication epub, String name, String mediaType) {
		super(epub, name, mediaType, null);
	}

	public OPSDocument getDocument() {
		if (document == null)
			document = new OPSDocument(this);
		return document;
	}

	OPSResource[] splitLargeChapter(Publication pub, int sizeToSplit) {
		if (!mediaType.equals("application/xhtml+xml"))
			return null;
		int targetSize = sizeToSplit;
		Vector res = new Vector();
		res.add(this);
		OPSDocument doc = document;
		while (true) {
			String name = pub.makeUniqueResourceName(getName());
			OPSResource r = pub.createOPSResource(name);
			if (!doc.peelOffBack(r.getDocument(), targetSize)) {
				pub.removeResource(r);
				break;
			}
			doc = r.getDocument();
			res.add(r);
		}
		OPSResource[] result = new OPSResource[res.size()];
		res.copyInto(result);
		return result;
	}

	public void generateTOCFromHeadings(Stack headings, int depth) {
		if (mediaType.equals("application/xhtml+xml"))
			getDocument().getBody().generateTOCFromHeadings(headings, depth);
	}

	public void serialize(OutputStream out) throws IOException {
		getDocument().serialize(out);
	}

	public void load(DataSource data) throws Exception {
		document = new OPSDocument(this);
		document.load(data);
	}
}