Java Doc for PDFParser.java in  » Web-Crawler » heritrix » org » archive » crawler » extractor » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » Web Crawler » heritrix » org.archive.crawler.extractor   Source Cross Reference   Class Diagram   Java Document (Java Doc)   java.lang.Object    org.archive.crawler.extractor.PDFParser PDFParser public class PDFParser (Code) Supports PDF parsing operations. For now this primarily means extracting URIs, but the logic in extractURIs() could easily be adopted/extended for a variety of PDF processing tasks. author:    Parker Thompson Field Summary  PdfDictionary catalog       byte[] document       PdfReader documentReader       ArrayList<ArrayList<Integer>> encounteredReferences       ArrayList<String> foundURIs      Constructor Summary public   PDFParser(String doc)      public   PDFParser(byte[] doc)      Method Summary public  ArrayList extractURIs()      Extract URIs from all objects found in a Pdf document's catalog. protected  void extractURIs(PdfObject entity)      protected  void getInFromFile(String doc)      Read a file named 'doc' and store its' bytes for later processing. public  ArrayList getURIs()      Get a list of URIs retrieved from the Pdf during the extractURIs operation. protected  boolean haveSeen(int generation, int id)      Indicates, based on a PDFObject's generation/id pair whether the parser has already encountered this object (or a reference to it) so we don't infinitely loop on circuits within the PDF. protected  void initialize()      Initialize opens the document for reading. public static  void main(String[] argv)      protected  void markAsSeen(int generation, int id)      Note that an object (id/generation pair) has been seen by this parser so that it can be handled differently when it is encountered again. protected  void resetState()      Reinitialize the object as though a new one were created. public  void resetState(byte[] doc)      Reset the object and initialize it with a new byte array (the document). public  void resetState(String doc)      Field Detail catalog PdfDictionary catalog(Code) document byte[] document(Code) documentReader PdfReader documentReader(Code) encounteredReferences ArrayList<ArrayList<Integer>> encounteredReferences(Code) foundURIs ArrayList<String> foundURIs(Code) Constructor Detail PDFParser public PDFParser(String doc) throws IOException(Code) PDFParser public PDFParser(byte[] doc) throws IOException(Code) Method Detail extractURIs public ArrayList extractURIs()(Code) Extract URIs from all objects found in a Pdf document's catalog. Returns an array list representing all URIs found in the document catalog tree. URIs from all objects found in a Pdf document's catalog. extractURIs protected void extractURIs(PdfObject entity)(Code) Parse a PdfDictionary, looking for URIs recursively and adding them to foundURIs Parameters:   entity - getInFromFile protected void getInFromFile(String doc) throws IOException(Code) Read a file named 'doc' and store its' bytes for later processing. Parameters:   doc - throws:   IOException - getURIs public ArrayList getURIs()(Code) Get a list of URIs retrieved from the Pdf during the extractURIs operation. A list of URIs retrieved from the Pdf during theextractURIs operation. haveSeen protected boolean haveSeen(int generation, int id)(Code) Indicates, based on a PDFObject's generation/id pair whether the parser has already encountered this object (or a reference to it) so we don't infinitely loop on circuits within the PDF. Parameters:   generation - Parameters:   id - True if already seen. initialize protected void initialize() throws IOException(Code) Initialize opens the document for reading. This is done implicitly by the constuctor. This should only need to be called directly following a reset. throws:   IOException - main public static void main(String[] argv)(Code) markAsSeen protected void markAsSeen(int generation, int id)(Code) Note that an object (id/generation pair) has been seen by this parser so that it can be handled differently when it is encountered again. Parameters:   generation - Parameters:   id - resetState protected void resetState()(Code) Reinitialize the object as though a new one were created. resetState public void resetState(byte[] doc) throws IOException(Code) Reset the object and initialize it with a new byte array (the document). Parameters:   doc - throws:   IOException - resetState public void resetState(String doc) throws IOException(Code) Reinitialize the object as though a new one were created, complete with a valid pointer to a document that can be read Parameters:   doc - throws:   IOException - Methods inherited from java.lang.Object native protected Object clone() throws CloneNotSupportedException(Code)(Java Doc) public boolean equals(Object obj)(Code)(Java Doc) protected void finalize() throws Throwable(Code)(Java Doc) final native public Class getClass()(Code)(Java Doc) native public int hashCode()(Code)(Java Doc) final native public void notify()(Code)(Java Doc) final native public void notifyAll()(Code)(Java Doc) public String toString()(Code)(Java Doc) final native public void wait(long timeout) throws InterruptedException(Code)(Java Doc) final public void wait(long timeout, int nanos) throws InterruptedException(Code)(Java Doc) final public void wait() throws InterruptedException(Code)(Java Doc)