Parse XML Java StAX mit - Count Anzahl von Content-Tags

ich große XML-Datei haben, und ich, wie unten bin Parsen:Parse XML Java StAX mit - Count Anzahl von Content-Tags

public class Solution { 

    private static final String ROOM_ID = "RoomID"; 
    private static final String CONTENT = "Content"; 
    private static final String LOGIN_NAME = "LoginName"; 
    private static final String CONVERSATION_ID = "ConversationID"; 
    private static final String FILE_DUMP = "FileDump"; 
    private static final String MESSAGE = "Message"; 
    private static final String CONVERSATION = "Conversation"; 
    private static final String START_TIME = "StartTime"; 

    static class ConversationInfo { 

     private String startTimeStr; 
     private String conversationId; 
     private String fileName; 
     private int orderInFile; 
     private final Set<String> users = new HashSet<>(); 
     private final List<Message> messages = new ArrayList<>(); 
     public HashMap<String, String> map = new HashMap<>(); 

     @Override 
     public String toString() { 
      return String.format("%s %d %s %s %s %d %s", fileName, orderInFile, conversationId, 
        startTimeStr, StringUtils.join(users, "***"), users.size(), 
        StringUtils.join(messages, "&&&")); 
     } 
    } 

    static class Message { 

     public final String userName; 
     public final String content; 

     public Message(String name, String content) { 
      this.userName = name; 
      this.content = content; 
     } 

     @Override 
     public String toString() { 
      return userName + " " + content; 
     } 
    } 

    public static void main(String[] args) 
      throws XMLStreamException, IOException { 
     File folder = new File("/xml/"); 
     List<ConversationInfo> m = new ArrayList<>(); 
     File[] listOfFiles = folder.listFiles(); 
     for (int i = 0; i < listOfFiles.length; i++) { 
      File file = listOfFiles[i]; 
      String fileName = file.getAbsolutePath(); 
      System.out.println("File" + file); 
      if (file.isFile() && file.getName().endsWith(".xml")) { 
       XMLInputFactory xf = XMLInputFactory.newFactory(); 
       try (FileInputStream fin = new FileInputStream(file)) { 
        XMLStreamReader xr = xf.createXMLStreamReader(fin); 
        LOOP: 
        while (xr.hasNext()) { 
         int event = xr.next(); 
         switch (event) { 
          case XMLStreamConstants.START_ELEMENT: { 
           String elName = xr.getLocalName(); 
           if (CONVERSATION.equals(elName)) { 
            ConversationInfo convInfo = parseConversation(xr, file.getName()); 
            if (convInfo != null) { 
             m.add(convInfo); 
            } 
           } 
           break; 
          } 
          case XMLStreamConstants.END_ELEMENT: { 
           String elName = xr.getLocalName(); 
           if (FILE_DUMP.equals(elName)) { 
            break LOOP; 
           } 
           break; 
          } 
          case XMLStreamConstants.END_DOCUMENT: 
           throw new IllegalStateException("xml not well-formed: <" 
             + FILE_DUMP + "> tag not closed"); 
         } 
        } 
       } 
      } 
     } 
     // ConversationInfo c = new ConversationInfo(); 

     try (FileWriter w = new FileWriter("output.txt")) { 
      int i = 1; 
      for (ConversationInfo convInfo : m) { 
       convInfo.orderInFile = i; 
       w.write(String.format("%d %s\n", i++, convInfo)); 
      } 
     } 

    } 

    private static ConversationInfo parseConversation(XMLStreamReader xr, String fileName) 
      throws XMLStreamException { 
     ConversationInfo convInfo = new ConversationInfo(); 
     convInfo.fileName = fileName; 
     while (xr.hasNext()) { 
      int event = xr.next(); 
      switch (event) { 
       case XMLStreamConstants.START_ELEMENT: { 
        String elName = xr.getLocalName(); 
        if (MESSAGE.equals(elName)) { 
         Message message = parseMessage(xr); 
         if (message != null) { 
          convInfo.messages.add(message); 
          convInfo.users.add(message.userName); 
          convInfo.map.put(message.userName, message.content); 
         } 
        } else if (START_TIME.equals(elName)) { 
         convInfo.startTimeStr = xr.getElementText(); 
        } else if (ROOM_ID.equals(elName)) { 
         convInfo.conversationId = xr.getElementText(); 
        } 
        break; 
       } 
       case XMLStreamConstants.END_ELEMENT: { 
        String elName = xr.getLocalName(); 
        if (CONVERSATION.equals(elName)) { 
         return convInfo; 
        } 
        break; 
       } 
       case XMLStreamConstants.END_DOCUMENT: 
        throw new XMLStreamException("xml not well-formed: <" 
          + CONVERSATION + "> tag not closed"); 
      } 
     } 

     throw new XMLStreamException(
       "unexpected end of xml file while parsing a conversation"); 
    } 

    private static Message parseMessage(XMLStreamReader xr) 
      throws XMLStreamException { 
     String userName = null; 
     String content = null; 
     while (xr.hasNext()) { 
      int event = xr.next(); 
      switch (event) { 
       case XMLStreamConstants.START_ELEMENT: { 
        String elName = xr.getLocalName(); 
        if (LOGIN_NAME.equals(elName)) { 
         userName = xr.getElementText(); 
        } else if (CONTENT.equals(elName)) { 
         content = StringUtils.trimToEmpty(xr.getElementText()); 
        } 
        break; 
       } 
       case XMLStreamConstants.END_ELEMENT: { 
        String elName = xr.getLocalName(); 
        if (MESSAGE.equals(elName)) { 
         return new Message(userName, content); 
        } 
        break; 
       } 
       case XMLStreamConstants.END_DOCUMENT: 
        throw new XMLStreamException("xml not well-formed: <" 
          + MESSAGE + "> tag not closed"); 
      } 
     } 
     throw new XMLStreamException(
       "unexpected end of xml file while parsing a message"); 
    } 
}

und meine input.xml ist:

<?xml version="1.0" encoding="UTF-8"?> 
<!-- Data provided by Bloomberg LP. --> 
<FileDump> 
    <Version>IBXML 1.3</Version> 
    <Conversation Perspective=" " RoomType="P"> 
     <RoomID>PCHAT-0x3000001CA8361</RoomID> 
     <StartTime>03/31/2016 13:39:01</StartTime> 
     <StartTimeUTC>1459431541</StartTimeUTC> 
     <ParticipantEntered InteractionType="N" DeviceType="M"> 
      <User> 
       <LoginName>SWONG00</LoginName> 
       <FirstName>STEPHEN</FirstName> 
       <LastName>WONG</LastName> 
       <UUID>4397109</UUID> 
       <FirmNumber>13133</FirmNumber> 
       <AccountNumber>231115</AccountNumber> 
       <CompanyName>DBS BANK LIMITED HON</CompanyName> 
       <EmailAddress>[email protected]</EmailAddress> 
       <CorporateEmailAddress>[email protected]</CorporateEmailAddress> 
      </User> 
      <DateTime>03/31/2016 13:39:01</DateTime> 
      <DateTimeUTC>1459431541</DateTimeUTC> 
      <ConversationID>PCHAT-0x3000001CA8361</ConversationID> 
     </ParticipantEntered> 
     <ParticipantEntered InteractionType="N" DeviceType="M"> 
      <User> 
       <LoginName>G_LO</LoginName> 
       <FirstName>GARY</FirstName> 
       <LastName>LO</LastName> 
       <UUID>7054548</UUID> 
       <FirmNumber>13133</FirmNumber> 
       <AccountNumber>91189</AccountNumber> 
       <CompanyName>DBS BANK (HONG KONG)</CompanyName> 
       <EmailAddress>[email protected]</EmailAddress> 
       <CorporateEmailAddress>[email protected]</CorporateEmailAddress> 
      </User> 
      <DateTime>03/31/2016 14:56:22</DateTime> 
      <DateTimeUTC>1459436182</DateTimeUTC> 
      <ConversationID>PCHAT-0x3000001CA8361</ConversationID> 
     </ParticipantEntered> 
     <ParticipantLeft InteractionType="N" DeviceType="M"> 
      <User> 
       <LoginName>G_LO</LoginName> 
       <FirstName>GARY</FirstName> 
       <LastName>LO</LastName> 
       <UUID>7054548</UUID> 
       <FirmNumber>13133</FirmNumber> 
       <AccountNumber>91189</AccountNumber> 
       <CompanyName>DBS BANK (HONG KONG)</CompanyName> 
       <EmailAddress>[email protected]</EmailAddress> 
       <CorporateEmailAddress>[email protected]</CorporateEmailAddress> 
      </User> 
      <DateTime>03/31/2016 19:30:01</DateTime> 
      <DateTimeUTC>1459452601</DateTimeUTC> 
      <ConversationID>PCHAT-0x3000001CA8361</ConversationID> 
     </ParticipantLeft> 
     <ParticipantLeft InteractionType="N" DeviceType="M"> 
      <User> 
       <LoginName>SWONG00</LoginName> 
       <FirstName>STEPHEN</FirstName> 
       <LastName>WONG</LastName> 
       <UUID>4397109</UUID> 
       <FirmNumber>13133</FirmNumber> 
       <AccountNumber>231115</AccountNumber> 
       <CompanyName>DBS BANK LIMITED HON</CompanyName> 
       <EmailAddress>[email protected]</EmailAddress> 
       <CorporateEmailAddress>[email protected]</CorporateEmailAddress> 
      </User> 
      <DateTime>03/31/2016 19:33:56</DateTime> 
      <DateTimeUTC>1459452836</DateTimeUTC> 
      <ConversationID>PCHAT-0x3000001CA8361</ConversationID> 
     </ParticipantLeft> 
     <ParticipantEntered InteractionType="N" DeviceType="M"> 
      <User> 
       <LoginName>SWONG00</LoginName> 
       <FirstName>STEPHEN</FirstName> 
       <LastName>WONG</LastName> 
       <UUID>4397109</UUID> 
       <FirmNumber>13133</FirmNumber> 
       <AccountNumber>231115</AccountNumber> 
       <CompanyName>DBS BANK LIMITED HON</CompanyName> 
       <EmailAddress>[email protected]</EmailAddress> 
       <CorporateEmailAddress>[email protected]</CorporateEmailAddress> 
      </User> 
      <DateTime>03/31/2016 19:45:16</DateTime> 
      <DateTimeUTC>1459453516</DateTimeUTC> 
      <ConversationID>PCHAT-0x3000001CA8361</ConversationID> 
     </ParticipantEntered> 
     <ParticipantLeft InteractionType="N" DeviceType="M"> 
      <User> 
       <LoginName>SWONG00</LoginName> 
       <FirstName>STEPHEN</FirstName> 
       <LastName>WONG</LastName> 
       <UUID>4397109</UUID> 
       <FirmNumber>13133</FirmNumber> 
       <AccountNumber>231115</AccountNumber> 
       <CompanyName>DBS BANK LIMITED HON</CompanyName> 
       <EmailAddress>[email protected]</EmailAddress> 
       <CorporateEmailAddress>[email protected]</CorporateEmailAddress> 
      </User> 
      <DateTime>03/31/2016 23:08:09</DateTime> 
      <DateTimeUTC>1459465689</DateTimeUTC> 
      <ConversationID>PCHAT-0x3000001CA8361</ConversationID> 
     </ParticipantLeft> 
     <ParticipantEntered InteractionType="N" DeviceType="M"> 
      <User> 
       <LoginName>G_LO</LoginName> 
       <FirstName>GARY</FirstName> 
       <LastName>LO</LastName> 
       <UUID>7054548</UUID> 
       <FirmNumber>13133</FirmNumber> 
       <AccountNumber>91189</AccountNumber> 
       <CompanyName>DBS BANK (HONG KONG)</CompanyName> 
       <EmailAddress>[email protected]</EmailAddress> 
       <CorporateEmailAddress>[email protected]</CorporateEmailAddress> 
      </User> 
      <DateTime>03/31/2016 23:14:23</DateTime> 
      <DateTimeUTC>1459466063</DateTimeUTC> 
      <ConversationID>PCHAT-0x3000001CA8361</ConversationID> 
     </ParticipantEntered> 
     <Message InteractionType="N"> 
      <User> 
       <LoginName>G_LO</LoginName> 
       <FirstName>GARY</FirstName> 
       <LastName>LO</LastName> 
       <UUID>7054548</UUID> 
       <FirmNumber>13133</FirmNumber> 
       <AccountNumber>91189</AccountNumber> 
       <CompanyName>DBS BANK (HONG KONG)</CompanyName> 
       <EmailAddress>[email protected]</EmailAddress> 
       <CorporateEmailAddress>[email protected]</CorporateEmailAddress> 
      </User> 
      <DateTime>04/01/2016 00:10:57</DateTime> 
      <DateTimeUTC>1459469457</DateTimeUTC> 
      <Content>abcdefgghhhhhh</Content> 
      <ConversationID>PCHAT-0x3000001CA8361</ConversationID> 
     </Message> 
     <ParticipantEntered InteractionType="N" DeviceType="M"> 
      <User> 
       <LoginName>WVU</LoginName> 
       <FirstName>WHEELOCK</FirstName> 
       <LastName>VU</LastName> 
       <UUID>8266852</UUID> 
       <FirmNumber>13133</FirmNumber> 
       <AccountNumber>91189</AccountNumber> 
       <CompanyName>DBS BANK (HONG KONG)</CompanyName> 
       <EmailAddress>[email protected]</EmailAddress> 
       <CorporateEmailAddress>[email protected]</CorporateEmailAddress> 
      </User> 
      <DateTime>04/01/2016 00:14:05</DateTime> 
      <DateTimeUTC>1459469645</DateTimeUTC> 
      <ConversationID>PCHAT-0x3000001CA8361</ConversationID> 
     </ParticipantEntered> 
     <ParticipantEntered InteractionType="N"> 
      <User> 
       <LoginName>FCHAN95</LoginName> 
       <FirstName>FLORENCE</FirstName> 
       <LastName>CHAN</LastName> 
       <CompanyName>GOLDMAN SACHS (ASIA)</CompanyName> 
       <EmailAddress>[email protected]</EmailAddress> 
       <CorporateEmailAddress /> 
      </User> 
      <DateTime>04/01/2016 00:29:19</DateTime> 
      <DateTimeUTC>1459470559</DateTimeUTC> 
      <ConversationID>PCHAT-0x3000001CA8361</ConversationID> 
     </ParticipantEntered> 
     <Message InteractionType="N"> 
      <User> 
       <LoginName>FCHAN95</LoginName> 
       <FirstName>FLORENCE</FirstName> 
       <LastName>CHAN</LastName> 
       <CompanyName>GOLDMAN SACHS (ASIA)</CompanyName> 
       <EmailAddress>[email protected]</EmailAddress> 
       <CorporateEmailAddress /> 
      </User> 
      <DateTime>04/01/2016 00:29:19</DateTime> 
      <DateTimeUTC>1459470559</DateTimeUTC> 
      <Content>ajdakjgdljsgdsafhkafa</Content> 
      <ConversationID>PCHAT-0x3000001CA8361</ConversationID> 
     </Message> 
     <Message InteractionType="N"> 
      <User> 
       <LoginName>FCHAN95</LoginName> 
       <FirstName>FLORENCE</FirstName> 
       <LastName>CHAN</LastName> 
       <CompanyName>GOLDMAN SACHS (ASIA)</CompanyName> 
       <EmailAddress>[email protected]</EmailAddress> 
       <CorporateEmailAddress /> 
      </User> 
      <DateTime>04/01/2016 00:29:19</DateTime> 
      <DateTimeUTC>1459470559</DateTimeUTC> 
      <Content>akjdgljsafdlshf;kdsjf</Content> 
      <ConversationID>PCHAT-0x3000001CA8361</ConversationID> 
     </Message> 
     <Message InteractionType="N"> 
      <User> 
       <LoginName>WVU</LoginName> 
       <FirstName>WHEELOCK</FirstName> 
       <LastName>VU</LastName> 
       <UUID>8266852</UUID> 
       <FirmNumber>13133</FirmNumber> 
       <AccountNumber>91189</AccountNumber> 
       <CompanyName>DBS BANK (HONG KONG)</CompanyName> 
       <EmailAddress>[email protected]</EmailAddress> 
       <CorporateEmailAddress>[email protected]</CorporateEmailAddress> 
      </User> 
      <DateTime>04/01/2016 00:39:32</DateTime> 
      <DateTimeUTC>1459471172</DateTimeUTC> 
      <Content>sagdksajdlsahd</Content> 
      <ConversationID>PCHAT-0x3000001CA8361</ConversationID> 
     </Message> 
     <ParticipantEntered InteractionType="N" DeviceType="M"> 
      <User> 
       <LoginName>SWONG00</LoginName> 
       <FirstName>STEPHEN</FirstName> 
       <LastName>WONG</LastName> 
       <UUID>4397109</UUID> 
       <FirmNumber>13133</FirmNumber> 
       <AccountNumber>231115</AccountNumber> 
       <CompanyName>DBS BANK LIMITED HON</CompanyName> 
       <EmailAddress>[email protected]</EmailAddress> 
       <CorporateEmailAddress>[email protected]</CorporateEmailAddress> 
      </User> 
      <DateTime>04/01/2016 01:01:27</DateTime> 
      <DateTimeUTC>1459472487</DateTimeUTC> 
      <ConversationID>PCHAT-0x3000001CA8361</ConversationID> 
     </ParticipantEntered> 
     <Message InteractionType="N"> 
      <User> 
       <LoginName>SWONG00</LoginName> 
       <FirstName>STEPHEN</FirstName> 
       <LastName>WONG</LastName> 
       <UUID>4397109</UUID> 
       <FirmNumber>13133</FirmNumber> 
       <AccountNumber>231115</AccountNumber> 
       <CompanyName>DBS BANK LIMITED HON</CompanyName> 
       <EmailAddress>[email protected]</EmailAddress> 
       <CorporateEmailAddress>[email protected]</CorporateEmailAddress> 
      </User> 
      <DateTime>04/01/2016 01:31:29</DateTime> 
      <DateTimeUTC>1459474289</DateTimeUTC> 
      <Content>ajdslsahdsj;a</Content> 
      <ConversationID>PCHAT-0x3000001CA8361</ConversationID> 
     </Message> 
     <Message InteractionType="N" DeviceType="M"> 
      <User> 
       <LoginName>FCHAN95</LoginName> 
       <FirstName>FLORENCE</FirstName> 
       <LastName>CHAN</LastName> 
       <CompanyName>GOLDMAN SACHS (ASIA)</CompanyName> 
       <EmailAddress>[email protected]</EmailAddress> 
       <CorporateEmailAddress /> 
      </User> 
      <DateTime>04/01/2016 02:49:46</DateTime> 
      <DateTimeUTC>1459478986</DateTimeUTC> 
      <Content>sagdkjsagdkjashdlasjd</Content> 
      <ConversationID>PCHAT-0x3000001CA8361</ConversationID> 
     </Message> 
     <Message InteractionType="N" DeviceType="M"> 
      <User> 
       <LoginName>FCHAN95</LoginName> 
       <FirstName>FLORENCE</FirstName> 
       <LastName>CHAN</LastName> 
       <CompanyName>GOLDMAN SACHS (ASIA)</CompanyName> 
       <EmailAddress>[email protected]</EmailAddress> 
       <CorporateEmailAddress /> 
      </User> 
      <DateTime>04/01/2016 02:49:46</DateTime> 
      <DateTimeUTC>1459478986</DateTimeUTC> 
      <Content>jsdhkshdksjdlsjdlks</Content> 
      <ConversationID>PCHAT-0x3000001CA8361</ConversationID> 
     </Message> 
     <Message InteractionType="N" DeviceType="M"> 
      <User> 
       <LoginName>FCHAN95</LoginName> 
       <FirstName>FLORENCE</FirstName> 
       <LastName>CHAN</LastName> 
       <CompanyName>GOLDMAN SACHS (ASIA)</CompanyName> 
       <EmailAddress>[email protected]</EmailAddress> 
       <CorporateEmailAddress /> 
      </User> 
      <DateTime>04/01/2016 03:47:37</DateTime> 
      <DateTimeUTC>1459482457</DateTimeUTC> 
      <Content>jshdkshdksjdlskld</Content> 
      <ConversationID>PCHAT-0x3000001CA8361</ConversationID> 
     </Message> 
     <Message InteractionType="N" DeviceType="M"> 
      <User> 
       <LoginName>FCHAN95</LoginName> 
       <FirstName>FLORENCE</FirstName> 
       <LastName>CHAN</LastName> 
       <CompanyName>GOLDMAN SACHS (ASIA)</CompanyName> 
       <EmailAddress>[email protected]</EmailAddress> 
       <CorporateEmailAddress /> 
      </User> 
      <DateTime>04/01/2016 03:47:37</DateTime> 
      <DateTimeUTC>1459482457</DateTimeUTC> 
      <Content>aasasasasas</Content> 
      <ConversationID>PCHAT-0x3000001CA8361</ConversationID> 
     </Message> 
     <EndTime>04/01/2016 03:47:37</EndTime> 
     <EndTimeUTC>1459482457</EndTimeUTC> 
    </Conversation> 
</FileDump>

Derzeit ich Benutzer am Anzeigen und Inhalt, aber ich will

userName(CountOfMessages UserSent)+userName(CountOfMessages UserSent)

Ex drucken: G_LO(1)+FCHAN95(6)+WVU(1)+SWONG00(1)

Ich versuchte HashMap<String, Integer>, aber es funktioniert nicht wie erwartet. Java 8 Features funktioniert nicht so gut. Auch versucht Multiset von Guava, aber ohne Erfolg.

Quelle

2016-08-30 mangala udupa

Ihre Frage ist nicht klar ... Was ist CountofMessage Benutzer? –

Ys Anzahl der messahe jedes Benutzer gesendet ... wie Sie sehen können G_Lo gesendet 1 Nachricht FCHAN95 GESENDET 6 W_UV GESENDET 1 ... Ich möchte so zu zählen .... –

Sie können es mit SAX ganz einfach erreichen (beachten Sie, nicht StAX). Das sollte auch mit StAX möglich sein. Ich werde ein Update veröffentlichen, wenn ich es mache. Eine Referenzimplementierung auf SAX ist wie folgt

import java.io.StringReader; 
import java.util.HashMap; 

import javax.xml.parsers.SAXParser; 
import javax.xml.parsers.SAXParserFactory; 

import org.xml.sax.Attributes; 
import org.xml.sax.InputSource; 
import org.xml.sax.SAXException; 
import org.xml.sax.helpers.DefaultHandler; 

public class NumCountHandler extends DefaultHandler { 

    private HashMap<String, Integer> countOfNum = new HashMap<String, Integer>(); 
    boolean isStartTagPass = false; 

    @Override 
    public void startElement(String uri, String localName, String qName, Attributes attributes) throws SAXException { 
     if (qName.equalsIgnoreCase("LoginName")) { 
      isStartTagPass = true; 
     } 
    } 

    @Override 
    public void characters(char[] ch, int start, int length) throws SAXException { 
     String attributeNum = new String(ch, start, length); 
     if (isStartTagPass) { 
      if (countOfNum.containsKey(attributeNum)) { 
       Integer count = countOfNum.get(attributeNum); 
       countOfNum.put(attributeNum, new Integer(count.intValue() + 1)); 
      } else { 
       countOfNum.put(attributeNum, new Integer(1)); 
      } 
     } 
    } 

    @Override 
    public void endElement(String uri, String localName, String qName) throws SAXException { 
     if (qName.equalsIgnoreCase("LoginName")) { 
      isStartTagPass = false; 
     } 
    } 

    public static void main(String[] args) { 

     try { 
      String xml = "<FileDump> <Version>IBXML 1.3</Version> <Conversation Perspective=\" \" RoomType=\"P\">  <RoomID>PCHAT-0x3000001CA8361</RoomID>  <StartTime>03/31/2016 13:39:01</StartTime>  <StartTimeUTC>1459431541</StartTimeUTC>  <ParticipantEntered InteractionType=\"N\" DeviceType=\"M\">   <User><LoginName>SWONG00</LoginName><FirstName>STEPHEN</FirstName><LastName>WONG</LastName><UUID>4397109</UUID><FirmNumber>13133</FirmNumber><AccountNumber>231115</AccountNumber><CompanyName>DBS BANK LIMITED HON</CompanyName><EmailAddress>[email protected]</EmailAddress><CorporateEmailAddress>[email protected]</CorporateEmailAddress>   </User>   <DateTime>03/31/2016 13:39:01</DateTime>   <DateTimeUTC>1459431541</DateTimeUTC>   <ConversationID>PCHAT-0x3000001CA8361</ConversationID>  </ParticipantEntered>  <ParticipantEntered InteractionType=\"N\" DeviceType=\"M\">   <User><LoginName>G_LO</LoginName><FirstName>GARY</FirstName><LastName>LO</LastName><UUID>7054548</UUID><FirmNumber>13133</FirmNumber><AccountNumber>91189</AccountNumber><CompanyName>DBS BANK (HONG KONG)</CompanyName><EmailAddress>[email protected]</EmailAddress><CorporateEmailAddress>[email protected]</CorporateEmailAddress>   </User>   <DateTime>03/31/2016 14:56:22</DateTime>   <DateTimeUTC>1459436182</DateTimeUTC>   <ConversationID>PCHAT-0x3000001CA8361</ConversationID>  </ParticipantEntered>  <ParticipantLeft InteractionType=\"N\" DeviceType=\"M\">   <User><LoginName>G_LO</LoginName><FirstName>GARY</FirstName><LastName>LO</LastName><UUID>7054548</UUID><FirmNumber>13133</FirmNumber><AccountNumber>91189</AccountNumber><CompanyName>DBS BANK (HONG KONG)</CompanyName><EmailAddress>[email protected]</EmailAddress><CorporateEmailAddress>[email protected]</CorporateEmailAddress>   </User>   <DateTime>03/31/2016 19:30:01</DateTime>   <DateTimeUTC>1459452601</DateTimeUTC>   <ConversationID>PCHAT-0x3000001CA8361</ConversationID>  </ParticipantLeft>  <ParticipantLeft InteractionType=\"N\" DeviceType=\"M\">   <User><LoginName>SWONG00</LoginName><FirstName>STEPHEN</FirstName><LastName>WONG</LastName><UUID>4397109</UUID><FirmNumber>13133</FirmNumber><AccountNumber>231115</AccountNumber><CompanyName>DBS BANK LIMITED HON</CompanyName><EmailAddress>[email protected]</EmailAddress><CorporateEmailAddress>[email protected]</CorporateEmailAddress>   </User>   <DateTime>03/31/2016 19:33:56</DateTime>   <DateTimeUTC>1459452836</DateTimeUTC>   <ConversationID>PCHAT-0x3000001CA8361</ConversationID>  </ParticipantLeft>  <ParticipantEntered InteractionType=\"N\" DeviceType=\"M\">   <User><LoginName>SWONG00</LoginName><FirstName>STEPHEN</FirstName><LastName>WONG</LastName><UUID>4397109</UUID><FirmNumber>13133</FirmNumber><AccountNumber>231115</AccountNumber><CompanyName>DBS BANK LIMITED HON</CompanyName><EmailAddress>[email protected]</EmailAddress><CorporateEmailAddress>[email protected]</CorporateEmailAddress>   </User>   <DateTime>03/31/2016 19:45:16</DateTime>   <DateTimeUTC>1459453516</DateTimeUTC>   <ConversationID>PCHAT-0x3000001CA8361</ConversationID>  </ParticipantEntered>  <ParticipantLeft InteractionType=\"N\" DeviceType=\"M\">   <User><LoginName>SWONG00</LoginName><FirstName>STEPHEN</FirstName><LastName>WONG</LastName><UUID>4397109</UUID><FirmNumber>13133</FirmNumber><AccountNumber>231115</AccountNumber><CompanyName>DBS BANK LIMITED HON</CompanyName><EmailAddress>[email protected]</EmailAddress><CorporateEmailAddress>[email protected]</CorporateEmailAddress>   </User>   <DateTime>03/31/2016 23:08:09</DateTime>   <DateTimeUTC>1459465689</DateTimeUTC>   <ConversationID>PCHAT-0x3000001CA8361</ConversationID>  </ParticipantLeft>  <ParticipantEntered InteractionType=\"N\" DeviceType=\"M\">   <User><LoginName>G_LO</LoginName><FirstName>GARY</FirstName><LastName>LO</LastName><UUID>7054548</UUID><FirmNumber>13133</FirmNumber><AccountNumber>91189</AccountNumber><CompanyName>DBS BANK (HONG KONG)</CompanyName><EmailAddress>[email protected]</EmailAddress><CorporateEmailAddress>[email protected]</CorporateEmailAddress>   </User>   <DateTime>03/31/2016 23:14:23</DateTime>   <DateTimeUTC>1459466063</DateTimeUTC>   <ConversationID>PCHAT-0x3000001CA8361</ConversationID>  </ParticipantEntered>  <Message InteractionType=\"N\">   <User><LoginName>G_LO</LoginName><FirstName>GARY</FirstName><LastName>LO</LastName><UUID>7054548</UUID><FirmNumber>13133</FirmNumber><AccountNumber>91189</AccountNumber><CompanyName>DBS BANK (HONG KONG)</CompanyName><EmailAddress>[email protected]</EmailAddress><CorporateEmailAddress>[email protected]</CorporateEmailAddress>   </User>   <DateTime>04/01/2016 00:10:57</DateTime>   <DateTimeUTC>1459469457</DateTimeUTC>   <Content>abcdefgghhhhhh</Content>   <ConversationID>PCHAT-0x3000001CA8361</ConversationID>  </Message>  <ParticipantEntered InteractionType=\"N\" DeviceType=\"M\">   <User><LoginName>WVU</LoginName><FirstName>WHEELOCK</FirstName><LastName>VU</LastName><UUID>8266852</UUID><FirmNumber>13133</FirmNumber><AccountNumber>91189</AccountNumber><CompanyName>DBS BANK (HONG KONG)</CompanyName><EmailAddress>[email protected]</EmailAddress><CorporateEmailAddress>[email protected]</CorporateEmailAddress>   </User>   <DateTime>04/01/2016 00:14:05</DateTime>   <DateTimeUTC>1459469645</DateTimeUTC>   <ConversationID>PCHAT-0x3000001CA8361</ConversationID>  </ParticipantEntered>  <ParticipantEntered InteractionType=\"N\">   <User><LoginName>FCHAN95</LoginName><FirstName>FLORENCE</FirstName><LastName>CHAN</LastName><CompanyName>GOLDMAN SACHS (ASIA)</CompanyName><EmailAddress>[email protected]</EmailAddress><CorporateEmailAddress />   </User>   <DateTime>04/01/2016 00:29:19</DateTime>   <DateTimeUTC>1459470559</DateTimeUTC>   <ConversationID>PCHAT-0x3000001CA8361</ConversationID>  </ParticipantEntered>  <Message InteractionType=\"N\">   <User><LoginName>FCHAN95</LoginName><FirstName>FLORENCE</FirstName><LastName>CHAN</LastName><CompanyName>GOLDMAN SACHS (ASIA)</CompanyName><EmailAddress>[email protected]</EmailAddress><CorporateEmailAddress />   </User>   <DateTime>04/01/2016 00:29:19</DateTime>   <DateTimeUTC>1459470559</DateTimeUTC>   <Content>ajdakjgdljsgdsafhkafa</Content>   <ConversationID>PCHAT-0x3000001CA8361</ConversationID>  </Message>  <Message InteractionType=\"N\">   <User><LoginName>FCHAN95</LoginName><FirstName>FLORENCE</FirstName><LastName>CHAN</LastName><CompanyName>GOLDMAN SACHS (ASIA)</CompanyName><EmailAddress>[email protected]</EmailAddress><CorporateEmailAddress />   </User>   <DateTime>04/01/2016 00:29:19</DateTime>   <DateTimeUTC>1459470559</DateTimeUTC>   <Content>akjdgljsafdlshf;kdsjf</Content>   <ConversationID>PCHAT-0x3000001CA8361</ConversationID>  </Message>  <Message InteractionType=\"N\">   <User><LoginName>WVU</LoginName><FirstName>WHEELOCK</FirstName><LastName>VU</LastName><UUID>8266852</UUID><FirmNumber>13133</FirmNumber><AccountNumber>91189</AccountNumber><CompanyName>DBS BANK (HONG KONG)</CompanyName><EmailAddress>[email protected]</EmailAddress><CorporateEmailAddress>[email protected]</CorporateEmailAddress>   </User>   <DateTime>04/01/2016 00:39:32</DateTime>   <DateTimeUTC>1459471172</DateTimeUTC>   <Content>sagdksajdlsahd</Content>   <ConversationID>PCHAT-0x3000001CA8361</ConversationID>  </Message>  <ParticipantEntered InteractionType=\"N\" DeviceType=\"M\">   <User><LoginName>SWONG00</LoginName><FirstName>STEPHEN</FirstName><LastName>WONG</LastName><UUID>4397109</UUID><FirmNumber>13133</FirmNumber><AccountNumber>231115</AccountNumber><CompanyName>DBS BANK LIMITED HON</CompanyName><EmailAddress>[email protected]</EmailAddress><CorporateEmailAddress>[email protected]</CorporateEmailAddress>   </User>   <DateTime>04/01/2016 01:01:27</DateTime>   <DateTimeUTC>1459472487</DateTimeUTC>   <ConversationID>PCHAT-0x3000001CA8361</ConversationID>  </ParticipantEntered>  <Message InteractionType=\"N\">   <User><LoginName>SWONG00</LoginName><FirstName>STEPHEN</FirstName><LastName>WONG</LastName><UUID>4397109</UUID><FirmNumber>13133</FirmNumber><AccountNumber>231115</AccountNumber><CompanyName>DBS BANK LIMITED HON</CompanyName><EmailAddress>[email protected]</EmailAddress><CorporateEmailAddress>[email protected]</CorporateEmailAddress>   </User>   <DateTime>04/01/2016 01:31:29</DateTime>   <DateTimeUTC>1459474289</DateTimeUTC>   <Content>ajdslsahdsj;a</Content>   <ConversationID>PCHAT-0x3000001CA8361</ConversationID>  </Message>  <Message InteractionType=\"N\" DeviceType=\"M\">   <User><LoginName>FCHAN95</LoginName><FirstName>FLORENCE</FirstName><LastName>CHAN</LastName><CompanyName>GOLDMAN SACHS (ASIA)</CompanyName><EmailAddress>[email protected]</EmailAddress><CorporateEmailAddress />   </User>   <DateTime>04/01/2016 02:49:46</DateTime>   <DateTimeUTC>1459478986</DateTimeUTC>   <Content>sagdkjsagdkjashdlasjd</Content>   <ConversationID>PCHAT-0x3000001CA8361</ConversationID>  </Message>  <Message InteractionType=\"N\" DeviceType=\"M\">   <User><LoginName>FCHAN95</LoginName><FirstName>FLORENCE</FirstName><LastName>CHAN</LastName><CompanyName>GOLDMAN SACHS (ASIA)</CompanyName><EmailAddress>[email protected]</EmailAddress><CorporateEmailAddress />   </User>   <DateTime>04/01/2016 02:49:46</DateTime>   <DateTimeUTC>1459478986</DateTimeUTC>   <Content>jsdhkshdksjdlsjdlks</Content>   <ConversationID>PCHAT-0x3000001CA8361</ConversationID>  </Message>  <Message InteractionType=\"N\" DeviceType=\"M\">   <User><LoginName>FCHAN95</LoginName><FirstName>FLORENCE</FirstName><LastName>CHAN</LastName><CompanyName>GOLDMAN SACHS (ASIA)</CompanyName><EmailAddress>[email protected]</EmailAddress><CorporateEmailAddress />   </User>   <DateTime>04/01/2016 03:47:37</DateTime>   <DateTimeUTC>1459482457</DateTimeUTC>   <Content>jshdkshdksjdlskld</Content>   <ConversationID>PCHAT-0x3000001CA8361</ConversationID>  </Message>  <Message InteractionType=\"N\" DeviceType=\"M\">   <User><LoginName>FCHAN95</LoginName><FirstName>FLORENCE</FirstName><LastName>CHAN</LastName><CompanyName>GOLDMAN SACHS (ASIA)</CompanyName><EmailAddress>[email protected]</EmailAddress><CorporateEmailAddress />   </User>   <DateTime>04/01/2016 03:47:37</DateTime>   <DateTimeUTC>1459482457</DateTimeUTC>   <Content>aasasasasas</Content>   <ConversationID>PCHAT-0x3000001CA8361</ConversationID>  </Message>  <EndTime>04/01/2016 03:47:37</EndTime>  <EndTimeUTC>1459482457</EndTimeUTC> </Conversation></FileDump>"; 
      ; 
      InputSource is = new InputSource(new StringReader(xml)); 

      SAXParserFactory factory = SAXParserFactory.newInstance(); 
      SAXParser saxParser = factory.newSAXParser(); 
      NumCountHandler userhandler = new NumCountHandler(); 
      saxParser.parse(is, userhandler); 

      userhandler.countOfNum 
        .forEach((k, v) -> System.out.print(k +"("+v+") ")); 

     } catch (Exception e) { 
      e.printStackTrace(); 
     } 
    } 
}

und diese Drucke: WVU(2)+G_LO(4)+FCHAN95(7)+SWONG00(6)+

===== Hinzugefügt eine StaX basierte Implementierung ==========

sein Können definitiv verbessert mit Java 8-Funktionen. Außerdem habe ich statische Variablen nur für einen kleinen Piloten verwendet wird, soll es in der Lage sein zu tun, mit Klassenvariablen als auch mit einigen refractoring

import java.io.StringReader; 
import java.util.HashMap; 

import javax.xml.stream.XMLEventReader; 
import javax.xml.stream.XMLInputFactory; 
import javax.xml.stream.events.Characters; 
import javax.xml.stream.events.XMLEvent; 

public class NumCountHandlerStax { 

    private boolean isStartTagPass = false; 

    static private void groupAndProcess(Object object, HashMap<String, Integer> countOfNum, 
      NumCountHandlerStax staxBasedCounter) { 
     XMLEvent event = (XMLEvent) object; 
     if (event.isStartElement() && event.asStartElement().getName().getLocalPart().equals("LoginName")) { 
      staxBasedCounter.isStartTagPass = true; 
     } else if (event.isEndElement() && event.asEndElement().getName().getLocalPart().equals("LoginName")) { 
      staxBasedCounter.isStartTagPass = false; 
     } else if (staxBasedCounter.isStartTagPass && event.isCharacters()) { 
      Characters characters = event.asCharacters(); 
      String attributeNum = characters.getData(); 
      if (countOfNum.containsKey(attributeNum)) { 
       Integer count = countOfNum.get(attributeNum); 
       countOfNum.put(attributeNum, new Integer(count.intValue() + 1)); 
      } else { 
       countOfNum.put(attributeNum, new Integer(1)); 
      } 

     } 

    } 

    public static void main(String[] args) { 

     try { 
      NumCountHandlerStax staxBasedCounter = new NumCountHandlerStax(); 
      HashMap<String, Integer> countOfNum = new HashMap<String, Integer>(); 
      String xml = "<FileDump> <Version>IBXML 1.3</Version> <Conversation Perspective=\" \" RoomType=\"P\">  <RoomID>PCHAT-0x3000001CA8361</RoomID>  <StartTime>03/31/2016 13:39:01</StartTime>  <StartTimeUTC>1459431541</StartTimeUTC>  <ParticipantEntered InteractionType=\"N\" DeviceType=\"M\">   <User><LoginName>SWONG00</LoginName><FirstName>STEPHEN</FirstName><LastName>WONG</LastName><UUID>4397109</UUID><FirmNumber>13133</FirmNumber><AccountNumber>231115</AccountNumber><CompanyName>DBS BANK LIMITED HON</CompanyName><EmailAddress>[email protected]</EmailAddress><CorporateEmailAddress>[email protected]</CorporateEmailAddress>   </User>   <DateTime>03/31/2016 13:39:01</DateTime>   <DateTimeUTC>1459431541</DateTimeUTC>   <ConversationID>PCHAT-0x3000001CA8361</ConversationID>  </ParticipantEntered>  <ParticipantEntered InteractionType=\"N\" DeviceType=\"M\">   <User><LoginName>G_LO</LoginName><FirstName>GARY</FirstName><LastName>LO</LastName><UUID>7054548</UUID><FirmNumber>13133</FirmNumber><AccountNumber>91189</AccountNumber><CompanyName>DBS BANK (HONG KONG)</CompanyName><EmailAddress>[email protected]</EmailAddress><CorporateEmailAddress>[email protected]</CorporateEmailAddress>   </User>   <DateTime>03/31/2016 14:56:22</DateTime>   <DateTimeUTC>1459436182</DateTimeUTC>   <ConversationID>PCHAT-0x3000001CA8361</ConversationID>  </ParticipantEntered>  <ParticipantLeft InteractionType=\"N\" DeviceType=\"M\">   <User><LoginName>G_LO</LoginName><FirstName>GARY</FirstName><LastName>LO</LastName><UUID>7054548</UUID><FirmNumber>13133</FirmNumber><AccountNumber>91189</AccountNumber><CompanyName>DBS BANK (HONG KONG)</CompanyName><EmailAddress>[email protected]</EmailAddress><CorporateEmailAddress>[email protected]</CorporateEmailAddress>   </User>   <DateTime>03/31/2016 19:30:01</DateTime>   <DateTimeUTC>1459452601</DateTimeUTC>   <ConversationID>PCHAT-0x3000001CA8361</ConversationID>  </ParticipantLeft>  <ParticipantLeft InteractionType=\"N\" DeviceType=\"M\">   <User><LoginName>SWONG00</LoginName><FirstName>STEPHEN</FirstName><LastName>WONG</LastName><UUID>4397109</UUID><FirmNumber>13133</FirmNumber><AccountNumber>231115</AccountNumber><CompanyName>DBS BANK LIMITED HON</CompanyName><EmailAddress>[email protected]</EmailAddress><CorporateEmailAddress>[email protected]</CorporateEmailAddress>   </User>   <DateTime>03/31/2016 19:33:56</DateTime>   <DateTimeUTC>1459452836</DateTimeUTC>   <ConversationID>PCHAT-0x3000001CA8361</ConversationID>  </ParticipantLeft>  <ParticipantEntered InteractionType=\"N\" DeviceType=\"M\">   <User><LoginName>SWONG00</LoginName><FirstName>STEPHEN</FirstName><LastName>WONG</LastName><UUID>4397109</UUID><FirmNumber>13133</FirmNumber><AccountNumber>231115</AccountNumber><CompanyName>DBS BANK LIMITED HON</CompanyName><EmailAddress>[email protected]</EmailAddress><CorporateEmailAddress>[email protected]</CorporateEmailAddress>   </User>   <DateTime>03/31/2016 19:45:16</DateTime>   <DateTimeUTC>1459453516</DateTimeUTC>   <ConversationID>PCHAT-0x3000001CA8361</ConversationID>  </ParticipantEntered>  <ParticipantLeft InteractionType=\"N\" DeviceType=\"M\">   <User><LoginName>SWONG00</LoginName><FirstName>STEPHEN</FirstName><LastName>WONG</LastName><UUID>4397109</UUID><FirmNumber>13133</FirmNumber><AccountNumber>231115</AccountNumber><CompanyName>DBS BANK LIMITED HON</CompanyName><EmailAddress>[email protected]</EmailAddress><CorporateEmailAddress>[email protected]</CorporateEmailAddress>   </User>   <DateTime>03/31/2016 23:08:09</DateTime>   <DateTimeUTC>1459465689</DateTimeUTC>   <ConversationID>PCHAT-0x3000001CA8361</ConversationID>  </ParticipantLeft>  <ParticipantEntered InteractionType=\"N\" DeviceType=\"M\">   <User><LoginName>G_LO</LoginName><FirstName>GARY</FirstName><LastName>LO</LastName><UUID>7054548</UUID><FirmNumber>13133</FirmNumber><AccountNumber>91189</AccountNumber><CompanyName>DBS BANK (HONG KONG)</CompanyName><EmailAddress>[email protected]</EmailAddress><CorporateEmailAddress>[email protected]</CorporateEmailAddress>   </User>   <DateTime>03/31/2016 23:14:23</DateTime>   <DateTimeUTC>1459466063</DateTimeUTC>   <ConversationID>PCHAT-0x3000001CA8361</ConversationID>  </ParticipantEntered>  <Message InteractionType=\"N\">   <User><LoginName>G_LO</LoginName><FirstName>GARY</FirstName><LastName>LO</LastName><UUID>7054548</UUID><FirmNumber>13133</FirmNumber><AccountNumber>91189</AccountNumber><CompanyName>DBS BANK (HONG KONG)</CompanyName><EmailAddress>[email protected]</EmailAddress><CorporateEmailAddress>[email protected]</CorporateEmailAddress>   </User>   <DateTime>04/01/2016 00:10:57</DateTime>   <DateTimeUTC>1459469457</DateTimeUTC>   <Content>abcdefgghhhhhh</Content>   <ConversationID>PCHAT-0x3000001CA8361</ConversationID>  </Message>  <ParticipantEntered InteractionType=\"N\" DeviceType=\"M\">   <User><LoginName>WVU</LoginName><FirstName>WHEELOCK</FirstName><LastName>VU</LastName><UUID>8266852</UUID><FirmNumber>13133</FirmNumber><AccountNumber>91189</AccountNumber><CompanyName>DBS BANK (HONG KONG)</CompanyName><EmailAddress>[email protected]</EmailAddress><CorporateEmailAddress>[email protected]</CorporateEmailAddress>   </User>   <DateTime>04/01/2016 00:14:05</DateTime>   <DateTimeUTC>1459469645</DateTimeUTC>   <ConversationID>PCHAT-0x3000001CA8361</ConversationID>  </ParticipantEntered>  <ParticipantEntered InteractionType=\"N\">   <User><LoginName>FCHAN95</LoginName><FirstName>FLORENCE</FirstName><LastName>CHAN</LastName><CompanyName>GOLDMAN SACHS (ASIA)</CompanyName><EmailAddress>[email protected]</EmailAddress><CorporateEmailAddress />   </User>   <DateTime>04/01/2016 00:29:19</DateTime>   <DateTimeUTC>1459470559</DateTimeUTC>   <ConversationID>PCHAT-0x3000001CA8361</ConversationID>  </ParticipantEntered>  <Message InteractionType=\"N\">   <User><LoginName>FCHAN95</LoginName><FirstName>FLORENCE</FirstName><LastName>CHAN</LastName><CompanyName>GOLDMAN SACHS (ASIA)</CompanyName><EmailAddress>[email protected]</EmailAddress><CorporateEmailAddress />   </User>   <DateTime>04/01/2016 00:29:19</DateTime>   <DateTimeUTC>1459470559</DateTimeUTC>   <Content>ajdakjgdljsgdsafhkafa</Content>   <ConversationID>PCHAT-0x3000001CA8361</ConversationID>  </Message>  <Message InteractionType=\"N\">   <User><LoginName>FCHAN95</LoginName><FirstName>FLORENCE</FirstName><LastName>CHAN</LastName><CompanyName>GOLDMAN SACHS (ASIA)</CompanyName><EmailAddress>[email protected]</EmailAddress><CorporateEmailAddress />   </User>   <DateTime>04/01/2016 00:29:19</DateTime>   <DateTimeUTC>1459470559</DateTimeUTC>   <Content>akjdgljsafdlshf;kdsjf</Content>   <ConversationID>PCHAT-0x3000001CA8361</ConversationID>  </Message>  <Message InteractionType=\"N\">   <User><LoginName>WVU</LoginName><FirstName>WHEELOCK</FirstName><LastName>VU</LastName><UUID>8266852</UUID><FirmNumber>13133</FirmNumber><AccountNumber>91189</AccountNumber><CompanyName>DBS BANK (HONG KONG)</CompanyName><EmailAddress>[email protected]</EmailAddress><CorporateEmailAddress>[email protected]</CorporateEmailAddress>   </User>   <DateTime>04/01/2016 00:39:32</DateTime>   <DateTimeUTC>1459471172</DateTimeUTC>   <Content>sagdksajdlsahd</Content>   <ConversationID>PCHAT-0x3000001CA8361</ConversationID>  </Message>  <ParticipantEntered InteractionType=\"N\" DeviceType=\"M\">   <User><LoginName>SWONG00</LoginName><FirstName>STEPHEN</FirstName><LastName>WONG</LastName><UUID>4397109</UUID><FirmNumber>13133</FirmNumber><AccountNumber>231115</AccountNumber><CompanyName>DBS BANK LIMITED HON</CompanyName><EmailAddress>[email protected]</EmailAddress><CorporateEmailAddress>[email protected]</CorporateEmailAddress>   </User>   <DateTime>04/01/2016 01:01:27</DateTime>   <DateTimeUTC>1459472487</DateTimeUTC>   <ConversationID>PCHAT-0x3000001CA8361</ConversationID>  </ParticipantEntered>  <Message InteractionType=\"N\">   <User><LoginName>SWONG00</LoginName><FirstName>STEPHEN</FirstName><LastName>WONG</LastName><UUID>4397109</UUID><FirmNumber>13133</FirmNumber><AccountNumber>231115</AccountNumber><CompanyName>DBS BANK LIMITED HON</CompanyName><EmailAddress>[email protected]</EmailAddress><CorporateEmailAddress>[email protected]</CorporateEmailAddress>   </User>   <DateTime>04/01/2016 01:31:29</DateTime>   <DateTimeUTC>1459474289</DateTimeUTC>   <Content>ajdslsahdsj;a</Content>   <ConversationID>PCHAT-0x3000001CA8361</ConversationID>  </Message>  <Message InteractionType=\"N\" DeviceType=\"M\">   <User><LoginName>FCHAN95</LoginName><FirstName>FLORENCE</FirstName><LastName>CHAN</LastName><CompanyName>GOLDMAN SACHS (ASIA)</CompanyName><EmailAddress>[email protected]</EmailAddress><CorporateEmailAddress />   </User>   <DateTime>04/01/2016 02:49:46</DateTime>   <DateTimeUTC>1459478986</DateTimeUTC>   <Content>sagdkjsagdkjashdlasjd</Content>   <ConversationID>PCHAT-0x3000001CA8361</ConversationID>  </Message>  <Message InteractionType=\"N\" DeviceType=\"M\">   <User><LoginName>FCHAN95</LoginName><FirstName>FLORENCE</FirstName><LastName>CHAN</LastName><CompanyName>GOLDMAN SACHS (ASIA)</CompanyName><EmailAddress>[email protected]</EmailAddress><CorporateEmailAddress />   </User>   <DateTime>04/01/2016 02:49:46</DateTime>   <DateTimeUTC>1459478986</DateTimeUTC>   <Content>jsdhkshdksjdlsjdlks</Content>   <ConversationID>PCHAT-0x3000001CA8361</ConversationID>  </Message>  <Message InteractionType=\"N\" DeviceType=\"M\">   <User><LoginName>FCHAN95</LoginName><FirstName>FLORENCE</FirstName><LastName>CHAN</LastName><CompanyName>GOLDMAN SACHS (ASIA)</CompanyName><EmailAddress>[email protected]</EmailAddress><CorporateEmailAddress />   </User>   <DateTime>04/01/2016 03:47:37</DateTime>   <DateTimeUTC>1459482457</DateTimeUTC>   <Content>jshdkshdksjdlskld</Content>   <ConversationID>PCHAT-0x3000001CA8361</ConversationID>  </Message>  <Message InteractionType=\"N\" DeviceType=\"M\">   <User><LoginName>FCHAN95</LoginName><FirstName>FLORENCE</FirstName><LastName>CHAN</LastName><CompanyName>GOLDMAN SACHS (ASIA)</CompanyName><EmailAddress>[email protected]</EmailAddress><CorporateEmailAddress />   </User>   <DateTime>04/01/2016 03:47:37</DateTime>   <DateTimeUTC>1459482457</DateTimeUTC>   <Content>aasasasasas</Content>   <ConversationID>PCHAT-0x3000001CA8361</ConversationID>  </Message>  <EndTime>04/01/2016 03:47:37</EndTime>  <EndTimeUTC>1459482457</EndTimeUTC> </Conversation></FileDump>"; 
      ; 
      XMLInputFactory xmlInputFactory = XMLInputFactory.newInstance(); 
      XMLEventReader xmlEventReader = xmlInputFactory.createXMLEventReader(new StringReader(xml)); 
      xmlEventReader.forEachRemaining(event -> groupAndProcess(event, countOfNum, staxBasedCounter)); 
      countOfNum.forEach((k, v) -> System.out.print(k + "(" + v + ") ")); 

     } catch (Exception e) { 
      e.printStackTrace(); 
     } 
    } 

} 
Prints `WVU(2) G_LO(4) FCHAN95(7) SWONG00(6)`

Quelle

2016-08-30 10:26:23

Ich vermied absichtlich SAX wie meiner ist BIG XML es gab mir immer outOfMem Ausnahme. Daher ist Stax besser in Bezug auf die Speichernutzung, wenn XML groß ist. SO bitte helft mir mit STAX nur –

hinzugefügt ein kleines Stax basiert impl. sowie –

G_LO (1) FCHAN95 (1) G_LO (1) FCHAN95 (2) G_LO (1) FCHAN95 (2) G_LO (1) WVU (1) FCHAN95 (2) G_LO (1) SWONG00 (1) WVU (1) FCHAN95 (3) G_LO (1) SWONG00 (1) WVU (1) FCHAN95 (4) G_LO (1) SWONG00 (1) WVU (1) FCHAN95 (5) G_LO (1) SWONG00 (1) WVU (1) FCHAN95 (6) G_LO (1) SWONG00 (1) WVU (1) wird gedruckt, wenn ich countOfNum.forEach ((k, v) -> System.out.print (k + "(" + v + ")")) verwende ; Wie nehme ich den letzten Eintrag der tatsächlichen Zählung und weise ihn einer Stringvariablen zu? –

einen XSLT 3.0 Prozessor wie Saxon 9.7 EE Verwenden Sie es in einer deklarativen Weise mit einem Sheet tun könnten einen Akkumulator mit:

<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" 
    xmlns:xs="http://www.w3.org/2001/XMLSchema" 
    xmlns:math="http://www.w3.org/2005/xpath-functions/math" 
    xmlns:map="http://www.w3.org/2005/xpath-functions/map" 
    exclude-result-prefixes="xs math map" 
    version="3.0"> 

    <xsl:accumulator name="message-count" as="map(xs:string, xs:integer)" initial-value="map{}" streamable="yes"> 
     <xsl:accumulator-rule 
      match="Message/User/LoginName/text()" 
      select="if (map:contains($value, .)) 
        then map:put($value, string(), map:get($value, .) + 1) 
        else map:put($value, string(), 1)"/> 
    </xsl:accumulator> 

    <xsl:mode streamable="yes" on-no-match="shallow-skip"/> 
    <xsl:global-context-item streamable="yes" use-accumulators="message-count"/> 

    <xsl:output method="text"/> 

    <xsl:template match="/*"> 
     <xsl:apply-templates/> 
     <xsl:value-of select="serialize(accumulator-after('message-count'), map { 'method' : 'adaptive' })"/> 
    </xsl:template> 

</xsl:stylesheet>

Ausgang für die Probe Sie gebucht haben map{"SWONG00":1,"FCHAN95":6,"WVU":1,"G_LO":1} ist.

Quelle

2016-08-30 08:50:03

Hallo, ich möchte nicht xslt hier verwenden .. Ich möchte nur Java-Code verwenden, um zu zählen, welcher Benutzer wie viele Nachrichten gesendet hat. Wie aaa sende 3Message Inhalt bbb gesendet 2 usw. –

Dies ist das Beispiel basiert auf XPath und VTD-XML. VTD-XML wird nicht mit großen XML wie DOM explodieren. XPath macht die Codelogik leicht verständlich und einfach zu verwalten. Wenn Sie etwas anderes zählen möchten, werfen Sie einfach eine andere XPath-Abfrage ein.

import java.util.HashMap; 
import com.ximpleware.*;. 
public class stats { 
    public static void main(String[] s)throws VTDException{ 
     VTDGen vg = new VTDGen(); 
     if (!vg.parseFile("d:\\xml\\dump.xml", false)){ 
      System.out.println("parsing error"); 
      return; 
     } 
     VTDNav vn = vg.getNav(); 
     AutoPilot ap = new AutoPilot(vn); 
     HashMap <String,Integer> hit = new HashMap<String, Integer>(); 
     ap.selectXPath("/FileDump/Conversation/Message/User/LoginName/text()"); 
     int i=0; 
     while((i=ap.evalXPath())!=-1){ 
      String s1 = vn.toNormalizedString(i); 
      if (hit.containsKey(s1)){ 
       Integer it = hit.get(s1); 
       hit.put(s1, new Integer(it.intValue()+1)); 
      }else{ 
       hit.put(s1, new Integer(1)); 
      } 
     } 

     System.out.println(hit.toString()); 
    } 
}

Quelle

2016-08-31 02:44:35

Parse XML Java StAX mit - Count Anzahl von Content-Tags

Antwort

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