This example extracts the text contents of a PDF for use in other systems. This demonstrates some basic differences from Java: multi-line strings (hooray!), imports, primitive arrays, and what implementing an interface looks like. The big downside to this is that the Eclipse Scala plugin doesn’t seem to have the ability to fill in interface methods on an object.<\/p>\n
\nimport java.io._\n\nimport org.apache.tika.parser.pdf._\nimport org.apache.tika.metadata._\nimport org.apache.tika.parser._\nimport org.xml.sax._\n\nobject pdfHandler extends ContentHandler {\n\tdef characters(ch : Array[Char], start: Int, length: Int) {\n\t\tprintln(new String(ch))\n\t} \n \n\tdef endDocument() {\n\t} \n \n\tdef endElement(uri: String, localName: String, qName: String) {\n\t} \n \n\tdef endPrefixMapping(prefix: String) {\n\t} \n \n\tdef ignorableWhitespace(ch: Array[Char], start: Int, length: Int) {\n\t} \n \n\tdef processingInstruction(target: String, data: String) {\n\t} \n \n\tdef setDocumentLocator(locator: Locator) {\n\t} \n \n\tdef skippedEntity(name: String) {\n\t} \n \n\tdef startDocument() {\n\t} \n \n\tdef startElement(uri: String, localName: String, qName: String, atts: Attributes) {\n\t} \n \n\tdef startPrefixMapping(prefix: String, uri: String) {\n\t} \n}\n\nobject pdf extends App {\n\tval folder = \"\"\"\\\\nas\\Files\\Data\\pacer2\\\"\"\"\n\tval subfolder = \"\"\"\\00\\00\\gov.uscourts.rid.6064\\\"\"\"\n\tval file = \"\"\"gov.uscourts.rid.6064.20.0.pdf\"\"\"\n\t \n\tval pdf : PDFParser = new PDFParser();\n\t\n\tval stream : InputStream = new FileInputStream(folder + subfolder + file)\n\tval handler : ContentHandler = pdfHandler\n\tval metadata : Metadata = new Metadata()\n\tval context : ParseContext = new ParseContext()\n\t\n\tpdf.parse(stream,\n handler,\n metadata,\n context)\n \n stream.close()\n}\n<\/pre>\nOutput:<\/p>\n
\nUNITED STATES DISTRICT COURT \nFOR THE DISTRICT OF RHODE ISLAND \n...\nIt is hereby agreed by and between the parties that the above-captioned matter be \ndismissed, with prejudice, no interest, no costs.\n<\/pre>\n","protected":false},"excerpt":{"rendered":"This example extracts the text contents of a PDF for use in other systems. This demonstrates some basic differences from Java: multi-line strings (hooray!), imports, primitive arrays, and what implementing an interface looks like. The big downside to this is that the Eclipse Scala plugin doesn’t seem to have the ability to fill in interface … <\/p>\n