sax

Parsing an XML SAX way in R

…衆ロ難τιáo~ 提交于 2019-12-04 18:44:50
Originating from this question, my research of R (and other) documentation indicates that SAX approach will be a faster way to parse XML data. Sadly I couldn't find much working examples for me to understand how to get there. Here's a dummy file with information that I want parsed. The real thing would have substantially more <ITEM> nodes and other nodes all around the tree that I would like to exclude. Another peculiarity is that the <META> section has two <DESC> elements, and I need any one of them (not both). <FILE> <HEADER> <FILEID>12347</FILEID> </HEADER> <META> <DESC> <TYPE>A</TYPE>

Using SAX with JAXBContext

*爱你&永不变心* 提交于 2019-12-04 18:32:46
I am trying deserialize XML data into newly created Java content trees: I am using SAX, have the Java class under src\main\java\Summaries.java and am trying to simply print the document extracted: String xmlPath = "C:\\workspace-sts-2.8.0.RELEASE\\RESTClient\\src\\main\\resources\\dailySummary.xml"; String xmlPath2 = "/dailySummary.xml"; String xmlPath3 = "/src/main/resources/dailySummary.xml"; InputStream inputStream = null; InputSource inputSource = null; Unmarshaller unmarshaller = null; JAXBContext jc = null; try { // read from a file // or try xmlPath1 or try xmlPath3 inputStream =

Xml not parsing String as input with sax

孤街浪徒 提交于 2019-12-04 18:29:40
问题 I have a string input from which I need to extract simple information, here is the sample xml (from mkyong): <?xml version="1.0"?> <company> <staff> <firstname>yong</firstname> <lastname>mook kim</lastname> <nickname>mkyong</nickname> <salary>100000</salary> </staff> <staff> <firstname>low</firstname> <lastname>yin fong</lastname> <nickname>fong fong</nickname> <salary>200000</salary> </staff> </company> How I parse it within my code (I have a field String name in my class) : public String

Obtain InputStream from XML element content

痴心易碎 提交于 2019-12-04 16:45:58
My servlet's doPost() receives an HttpServletRequest whose ServletInputStream sends me a large chunk of uuencoded data wrapped in XML. E.g., there is an element: <filedata encoding="base64">largeChunkEncodedHere</filedata> I need to decode the chunk and write it to a file. I would like to get an InputStream from the chunk, decode it as a stream using MimeUtility, and use that stream to write the file---I would prefer not to read this large chunk into memory. The XML is flat; i.e., there is not much nesting. My first idea is to use a SAX parser but I don't know how to do the hand-off to a

How do I call DaisyDiff to compare two HTML files?

你离开我真会死。 提交于 2019-12-04 14:05:52
I need to create a diff between two HTML documents in my app. I found a library called DaisyDiff that can do it. It has an API that looks like this: /** * Diffs two html files, outputting the result to the specified consumer. */ public static void diffHTML(InputSource oldSource, InputSource newSource, ContentHandler consumer, String prefix, Locale locale) throws SAXException, IOException I know absolutely nothing about SAX and I can't figure out what to pass as the third argument. After poking through https://code.google.com/p/daisydiff/source/browse/trunk/daisydiff/src/java/org/outerj/daisy

Disable XML Entity resolving in JDOM / DOM

夙愿已清 提交于 2019-12-04 11:08:21
I am writing a Java application for the postprocessing of XML files. These xml files come from an RDF-Export of a Semantic Mediawiki, so they have rdf/xml syntax. My problem is the following: When I read the xml file, all the entities in the file get resolved to their value which is specified in the Doctype. For example in the Doctype I have <!DOCTYPE rdf:RDF[ <!ENTITY wiki 'http://example.org/smartgrid/index.php/Special:URIResolver/'> .. ]> and in the root element <rdf:RDF xmlns:wiki="&wiki;" .. > This means <swivt:Subject rdf:about="&wiki;Main_Page"> becomes <swivt:Subject rdf:about="http:/

Light weight C++ SAX XML parser

纵饮孤独 提交于 2019-12-04 10:47:27
问题 I know of at least three light weight C++ XML parsers: RapidXML, TinyXML and PugiXML. However, all three use a DOM based interface (ie, they build their own in-memory representation of the XML document and then provide an interface to traverse and manipulate it). For most situations that I have to deal with, I much prefer the SAX interface (where the parser just spits out a stream of events like start-of-tag, and the application code is responsible for doing whatever it wants based on those

Difference SAXParserFactory XMLReaderFactory. Which one to choose?

你说的曾经没有我的故事 提交于 2019-12-04 09:31:18
问题 Both of them seem to have the same purpose (create a XMLReader). Some Tutorials contain the one, some the other. SAXParserFactory: http://docs.oracle.com/javase/7/docs/api/javax/xml/parsers/SAXParserFactory.html seems to be more configurable more boiler-plate code officially supported api example code: // SAXParserFactory SAXParserFactory factory = SAXParserFactory.newInstance(); SAXParser parser = factory.newSAXParser(); XMLReader reader = parser.getXMLReader(); reader.parse(new InputSource(

Read large Excel file .xlsx

本小妞迷上赌 提交于 2019-12-04 06:35:47
问题 i'm using library org.apache.poi XSSFWorkbook workbook = new XSSFWorkbook(fileInputStream); I'm trying org.xml.sax library, but cannot able convert it into workbook NOTE : at end result i want XSSFWorkbook to be returned the above code will go out of memory, any help will be appreciated ThankQ in advance 回答1: If the input data is too large for the available memory, you have two options. a) Provide more memory via the -Xmx java command line option b) Use the Streaming-API of POI. Option a)

SAX: How to get the content of an element

旧巷老猫 提交于 2019-12-04 05:42:20
I have some trouble understanding parsing XML structures with SAX. Let's say there is the following XML: <root> <element1>Value1</element1> <element2>Value2</element2> </root> and a String variable myString . Just going through with the methods startElement, endElement() and characters() is easy. But I don't understand how I can achieve the following: If the current element equals element1 store its value value1 in myString . As far as I understand there is nothing like: if (qName.equals("element1")) myString = qName.getValue(); Guess I'm just thinking too complicated :-) Robert With SAX you