labels.facet_filetype_ods=ODF Spreadsheet
labels.facet_filetype_odp=ODF Presentation
labels.facet_filetype_pdf=PDF
labels.facet_filetype_fb2=FictionBook
labels.facet_filetype_epub=EPUB
labels.facet_filetype_ibooks=iBooks
labels.facet_filetype_txt=Текст
labels.facet_filetype_rtf=Rich Text
labels.facet_filetype_chm=Compiled HTML Help
labels.facet_filetype_zip=Архив ZIP
labels.facet_filetype_7z=Архив 7z

labels.facet_filetype_ods=Feuille de calcul ODF
labels.facet_filetype_odp=Présentation ODF
labels.facet_filetype_pdf=PDF
labels.facet_filetype_fb2=FictionBook
labels.facet_filetype_epub=EPUB
labels.facet_filetype_ibooks=iBooks
labels.facet_filetype_txt=Texte
labels.facet_filetype_rtf=Texte enrichi
labels.facet_filetype_chm=Aide HTML compilée
labels.facet_filetype_zip=Archive ZIP
labels.facet_filetype_7z=Archive 7z

application/vnd.oasis.opendocument.spreadsheet=ods\n\
application/vnd.oasis.opendocument.presentation=odp\n\
application/pdf=pdf\n\
application/x-fictionbook+xml=fb2\n\
application/e-pub+zip=epub\n\
application/x-ibooks+zip=ibooks\n\
text/plain=txt\n\
application/rtf=rtf\n\
application/vnd.ms-htmlhelp=chm\n\
application/zip=zip\n\
application/x-7z-comressed=7z\n\
application/x-bzip=bz\n\
application/x-bzip2=bz2\n\

				"application/gzip",
				"application/x-hdf",
				"application/x-hwp",
				"application/x-ibooks+zip",
				"application/x-iso9660-image",
				"application/x-itunes-ipa",
				"application/x-java-jnlp-file",
				"application/x-java-pack200",
				"application/x-kdelnk",
				"application/x-latex",
				"application/x-mobipocket-ebook",
				"application/x-ms-application",
				"application/x-ms-wmd",
				"application/x-ms-wmz",

labels.facet_filetype_ods=ODF Hoja de cálculo
labels.facet_filetype_odp=ODF Presentación
labels.facet_filetype_pdf=PDF
labels.facet_filetype_fb2=FictionBook
labels.facet_filetype_epub=EPUB
labels.facet_filetype_ibooks=iBooks
labels.facet_filetype_txt=Texto
labels.facet_filetype_rtf=Texto enriquecido
labels.facet_filetype_chm=Ayuda HTML compilada
labels.facet_filetype_zip=Archivo ZIP
labels.facet_filetype_7z=Archivo 7z

labels.facet_filetype_ods=ODF Spreadsheet
labels.facet_filetype_odp=ODF Presentation
labels.facet_filetype_pdf=PDF
labels.facet_filetype_fb2=FictionBook
labels.facet_filetype_epub=EPUB
labels.facet_filetype_ibooks=iBooks
labels.facet_filetype_txt=टेक्स्ट
labels.facet_filetype_rtf=रिच टेक्स्ट
labels.facet_filetype_chm=संकलित HTML सहायता
labels.facet_filetype_zip=ZIP संग्रह
labels.facet_filetype_7z=7z संग्रह

labels.facet_filetype_ods=ODF Spreadsheet
labels.facet_filetype_odp=ODF Presentation
labels.facet_filetype_pdf=PDF
labels.facet_filetype_fb2=FictionBook
labels.facet_filetype_epub=EPUB
labels.facet_filetype_ibooks=iBooks
labels.facet_filetype_txt=テキスト
labels.facet_filetype_rtf=リッチテキスト
labels.facet_filetype_chm=Compiled HTML Help
labels.facet_filetype_zip=ZIPアーカイブ
labels.facet_filetype_7z=7zアーカイブ
labels.facet_filetype_bz=BZIPアーカイブ

old:before{content:"\f032"}.fa-bolt:before{content:"\f0e7"}.fa-bomb:before{content:"\f1e2"}.fa-bone:before{content:"\f5d7"}.fa-bong:before{content:"\f55c"}.fa-book:before{content:"\f02d"}.fa-book-dead:before{content:"\f6b7"}.fa-book-medical:before{content:"\f7e6"}.fa-book-open:before{content:"\f518"}.fa-book-reader:before{content:"\f5da"}.fa-bookmark:before{content:"\f02e"}.fa-bootstrap:before{content:"\f836"}.fa-border-all:before{content:"\f84c"}.fa-border-none:before{content:"\f850"}.fa-border...

     */
    public void setUseGoogleOffOn(final boolean useGoogleOffOn) {
        this.useGoogleOffOn = useGoogleOffOn;
    }

    /**
     * Extracts thumbnail URL from the HTML document.
     * Looks for thumbnail meta tags, Open Graph images, and image tags.
     *
     * @param responseData the response data from crawling
     * @param document the parsed HTML document