/**
* Check whether a resource is valid. A valid resource must have a non-blank ID, a non-blank link
* and a media type.
*
* @param book the book the resource is for
* @param resource the resource to check
* @return whether the resource is valid
*/
private static boolean isValidResource(final Book book, final Resource resource) {
if (resource == null
|| (resource.getMediaType() == MediatypeService.NCX
&& book.getSpine().getTocResource() != null)) {
return false;
}
if (StringUtil.isBlank(resource.getId())) {
LOGGER.error(
"resource id must not be blank (href: "
+ resource.getHref()
+ ", mediatype:"
+ resource.getMediaType()
+ ")");
return false;
}
if (StringUtil.isBlank(resource.getHref())) {
LOGGER.error(
"resource href must not be blank (id: "
+ resource.getId()
+ ", mediatype:"
+ resource.getMediaType()
+ ")");
return false;
}
if (resource.getMediaType() == null) {
LOGGER.error(
"resource media type must be specified (id: "
+ resource.getId()
+ ", href:"
+ resource.getHref()
+ ")");
return false;
}
return true;
}
public static void processEpub(String bookPath, String dest)
throws FileNotFoundException, IOException {
EpubReader reader = new EpubReader();
Book b = reader.readEpub(new FileInputStream(new File(bookPath)));
String content = "";
int pagecount = 1;
int tempCounter;
Count cnt = new Count(0, 0);
for (Resource res : b.getContents()) {
content = new String(res.getData());
Document doc = Jsoup.parse(content, "UTF-8");
// http-equiv=\"content-type\" content=\"text/html; charset=utf-8\"");
Element elem = new Element(Tag.valueOf("meta"), "");
elem.attr("http-equiv", "content-type");
elem.attr("content", "text/html; charset=utf-8");
doc.head().after(elem);
System.out.println(doc.head().data());
Element ele = doc.body();
alterElement(ele);
Count cTemp = modify(ele, cnt);
cnt.setCount(cTemp.getCount());
cnt.setPgCount(cTemp.getPgCount());
doc.body().html(ele.html());
res.setData(doc.html().getBytes());
if (res.getMediaType() == null) res.setMediaType(new MediaType("html", "html"));
}
EpubWriter wr = new EpubWriter();
wr.write(b, new FileOutputStream(new File(dest)));
}
protected Spanned doInBackground(String... hrefs) {
publishProgress(BookReadPhase.START);
if (loader != null) {
loader.clear();
}
if (BookView.this.book == null) {
try {
initBook();
} catch (IOException io) {
this.error = io.getMessage();
return null;
}
}
this.name = spine.getCurrentTitle();
Resource resource;
if (hrefs.length == 0) {
resource = spine.getCurrentResource();
} else {
resource = book.getResources().getByHref(hrefs[0]);
}
if (resource == null) {
return new SpannedString(
"Sorry, it looks like you clicked a dead link.\nEven books have 404s these days.");
}
publishProgress(BookReadPhase.PARSE_TEXT);
try {
Spannable result = spanner.fromHtml(resource.getReader());
loader.load(); // Load all image resources.
// Highlight search results (if any)
for (SearchTextTask.SearchResult searchResult : this.searchResults) {
if (searchResult.getIndex() == spine.getPosition()) {
result.setSpan(
new BackgroundColorSpan(Color.YELLOW),
searchResult.getStart(),
searchResult.getEnd(),
Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
}
}
publishProgress(BookReadPhase.DONE);
return result;
} catch (IOException io) {
return new SpannableString("Could not load text: " + io.getMessage());
}
}
public void setContextResource(Resource resource) {
if (resource == null) {
return;
}
if (StringUtils.isNotBlank(resource.getHref())) {
int lastSlashPos = resource.getHref().lastIndexOf('/');
if (lastSlashPos >= 0) {
this.currentFolder = resource.getHref().substring(0, lastSlashPos + 1);
}
}
}
/**
* Write a resource as an item element.
*
* @param serializer the XML serialiser to write the item element to
* @param book the book to write the resource for
* @param resource the resource to write as an item element
* @throws IOException if an I/O error occurs
*/
private static void writeItem(
final XmlSerializer serializer, final Book book, final Resource resource) throws IOException {
if (!isValidResource(book, resource)) {
return;
}
serializer.startTag(NAMESPACE_OPF, OPFElements.ITEM);
serializer.attribute(PREFIX_EMPTY, OPFAttributes.ID, resource.getId());
serializer.attribute(PREFIX_EMPTY, OPFAttributes.HREF, resource.getHref());
serializer.attribute(PREFIX_EMPTY, OPFAttributes.MEDIA_TYPE, resource.getMediaType().getName());
if (StringUtil.isNotBlank(resource.getProperties())) {
serializer.attribute(PREFIX_EMPTY, OPFAttributes.PROPERTIES, resource.getProperties());
}
serializer.endTag(NAMESPACE_OPF, OPFElements.ITEM);
}
/**
* Create an Image from the data of the given resource.
*
* @param imageResource
* @return
*/
private Image createImage(Resource imageResource) {
Image result = null;
try {
result = ImageIO.read(imageResource.getInputStream());
} catch (IOException e) {
log.error(e.getMessage());
}
return result;
}
private List<Integer> getOffsetsForResource(int spineIndex) throws IOException {
HtmlSpanner mySpanner = new HtmlSpanner();
mySpanner.registerHandler("table", tableHandler);
mySpanner.registerHandler("img", new ImageTagHandler(true));
mySpanner.registerHandler("image", new ImageTagHandler(true));
CharSequence text;
if (spineIndex == getIndex()) {
text = strategy.getText();
} else {
Resource res = spine.getResourceForIndex(spineIndex);
text = mySpanner.fromHtml(res.getReader());
loader.load();
}
return FixedPagesStrategy.getPageOffsets(this, text, true);
}
protected Spanned doInBackground(String... hrefs) {
if (loader != null) {
loader.clear();
}
if (BookView.this.book == null) {
try {
initBook();
} catch (IOException io) {
this.error = io.getMessage();
return null;
}
}
this.name = spine.getCurrentTitle();
Resource resource;
if (hrefs.length == 0) {
resource = spine.getCurrentResource();
} else {
resource = book.getResources().getByHref(hrefs[0]);
}
if (resource == null) {
return new SpannedString(
"Sorry, it looks like you clicked a dead link.\nEven books have 404s these days.");
}
try {
Spanned result = spanner.fromHtml(resource.getReader());
loader.load(); // Load all image resources.
return result;
} catch (IOException io) {
return new SpannableString("Could not load text: " + io.getMessage());
}
}
