Parsing an HTML text constaining <font> tags does not reset the size and family font after </font>
My code works pretty well except after </font>.
Before <font size=9> blablabla.. the text size was 11. I was expecting that after </font> the text size was reset to 11, but it still remains at 9. Same thing for the font family.
Certainly I have misunderstood how to use jsoup. I'd better use CSS, but I don't know how to do.
Thanks for help.
package test;
import java.awt.Color;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.math.BigInteger;
import org.apache.poi.xwpf.usermodel.UnderlinePatterns;
import org.apache.poi.xwpf.usermodel.VerticalAlign;
import org.apache.poi.xwpf.usermodel.XWPFDocument;
import org.apache.poi.xwpf.usermodel.XWPFParagraph;
import org.apache.poi.xwpf.usermodel.XWPFRun;
import org.apache.poi.xwpf.usermodel.XWPFTable;
import org.apache.poi.xwpf.usermodel.XWPFTableCell;
import org.apache.poi.xwpf.usermodel.XWPFTableRow;
import org.jsoup.Jsoup;
import org.jsoup.nodes.Document;
import org.jsoup.nodes.Element;
import org.jsoup.nodes.Node;
import org.jsoup.nodes.TextNode;
import org.jsoup.select.Elements;
import org.jsoup.select.NodeTraversor;
import org.jsoup.select.NodeVisitor;
import org.openxmlformats.schemas.wordprocessingml.x2006.main.CTTblLayoutType;
import org.openxmlformats.schemas.wordprocessingml.x2006.main.STTblLayoutType;
public class ReadHtml
{
protected static java.util.Vector<String> contenu = null;
org.apache.xmlbeans.XmlCursor cursor = null;
class WStyle
{
protected String police = "Times New Roman";
protected int taille = 11;
protected Color couleur = Color.black;
protected boolean gras = false;
protected boolean italique = false;
public WStyle() // constructeur
{
super();
}
protected String getPolice() {return police;}
protected int getTaille() {return taille;}
protected Color getCouleur() {return couleur;}
protected boolean getGras() {return gras;}
protected boolean getItalique() {return italique;}
protected void setPolice(String p) {police=p;}
protected void setTaille(int t) {taille=t;}
protected void setCouleur(Color c) {couleur=c;}
protected void setGras(boolean g) {gras=g;}
protected void setItalique(boolean i) {italique=i;}
}
public ReadHtml()
{
super();
contenu = new java.util.Vector<String>();
createWordFile();
}
private XWPFParagraph getTableParagraph(XWPFTableCell cell, String html)
{
cell.removeParagraph(0);
XWPFParagraph paragraph = cell.addParagraph();
paragraph.setSpacingAfterLines(0);
paragraph.setSpacingAfter(0);
Document htmlDocument = Jsoup.parse(html);
Elements htmlParagraphs = htmlDocument.select("p");
for(Element htmlParagraph : htmlParagraphs)
{
System.out.println(htmlParagraph);
ParagraphNodeVisitor nodeVisitor = new ParagraphNodeVisitor(paragraph);
NodeTraversor.traverse(nodeVisitor, htmlParagraph);
}
return paragraph;
}
private void createWordFile()
{
XWPFParagraph para = null;
try
{
XWPFDocument document = new XWPFDocument();
FileOutputStream out = new FileOutputStream(new File("./", "NewTable.docx"));
XWPFTable table = document.createTable();
CTTblLayoutType type = table.getCTTbl().getTblPr().addNewTblLayout();
type.setType(STTblLayoutType.FIXED);
table.getCTTbl().addNewTblGrid().addNewGridCol().setW(BigInteger.valueOf(1670));
table.getCTTbl().getTblGrid().addNewGridCol().setW(BigInteger.valueOf(6000));
String myTexte = "<html><head</head><body><p><font face=\"Verdana\" size=11>Good Morning</font> <font size=9 face=\"Times\"> " +
"<i><b>how are you today </b></i></font> Not so bad.<br>Thanks";
// first line
XWPFTableRow tableRow= table.getRow(0);
para = getTableParagraph(tableRow.getCell(0), "<p>Row #1, Col. #1");
tableRow .getCell(0).setParagraph(para);
XWPFTableCell cell = tableRow.createCell();
para = getTableParagraph(cell, myTexte); // Row #1, Col. #2
tableRow .getCell(1).setParagraph(para);
// seconde line
tableRow= table.createRow();
para = getTableParagraph(tableRow.getCell(0), "<p>Row #2, Col. #1");
tableRow .getCell(0).setParagraph(para);
para = getTableParagraph(tableRow.getCell(1), "<p>Row #2, Col. #2");
tableRow.getCell(1).setParagraph(para);
document.write(out);
document.close();
out.close();
System.out.println("NewTable.docx written successully");
}
catch (FileNotFoundException e) {System.out.println("File exception --> " + e.toString()); }
catch (IOException e) {System.out.println("I/O exception --> " + e.toString()); }
catch (Exception e) {System.out.println("Other exception --> " + e.toString()); }
}
public class ParagraphNodeVisitor implements NodeVisitor
{
String nodeName;
String fontFace;
String fontType;
boolean needNewRun;
boolean isItalic;
boolean isBold;
boolean isUnderlined;
int fontSize;
String fontColor;
VerticalAlign align = VerticalAlign.BASELINE ;
XWPFParagraph paragraph;
XWPFRun run;
ParagraphNodeVisitor(XWPFParagraph paragraph)
{
this.paragraph = paragraph;
this.run = paragraph.createRun();
this.nodeName = "";
this.needNewRun = false;
this.isItalic = false;
this.isBold = false;
this.isUnderlined = false;
this.fontSize = 11;
this.fontColor = "000000";
this.fontFace="Times";
}
#Override
public void head(Node node, int depth)
{
nodeName = node.nodeName();
needNewRun = false;
if ("#text".equals(nodeName))
{
run.setText(((TextNode)node).text());
needNewRun = true; //after setting the text in the run a new run is needed
}
else if ("i".equals(nodeName)) {isItalic = true;}
else if ("b".equals(nodeName)) {isBold = true;}
else if ("sup".equals(nodeName)){align = VerticalAlign.SUPERSCRIPT ;}
else if ("u".equals(nodeName)) {isUnderlined = true;}
else if ("br".equals(nodeName)) {run.addBreak();}
else if ("p".equals(nodeName)) {run.addBreak();}
else if ("font".equals(nodeName))
{
fontColor = (!"".equals(node.attr("color")))?node.attr("color").substring(1):"000000";
fontSize = (!"".equals(node.attr("size")))?Integer.parseInt(node.attr("size")):11;
fontFace = (!"".equals(node.attr("face")))?node.attr("face"):"Times";
}
if (needNewRun) run = paragraph.createRun();
needNewRun = false;
run.setItalic(isItalic);
run.setBold(isBold);
if (isUnderlined) run.setUnderline(UnderlinePatterns.SINGLE);
else run.setUnderline(UnderlinePatterns.NONE);
run.setColor(fontColor);
run.setFontSize(fontSize);
run.setFontFamily(fontFace);
run.setSubscript(align);
}
#Override
public void tail(Node node, int depth)
{
nodeName = node.nodeName();
System.out.println("Node=" + nodeName);
if ("i".equals(nodeName)) {isItalic = false;}
else if ("b".equals(nodeName)) {isBold = false;}
else if ("u".equals(nodeName)) {isUnderlined = false;}
else if ("sup".equals(nodeName)) {align= VerticalAlign.BASELINE ;}
else if ("font".equals("nodeName"))
{
fontColor = "000000";
fontSize = 11;
fontFace="Times";
System.out.println("Family=" + fontFace + " Taille=" + fontSize);
}
if (needNewRun) run = paragraph.createRun();
needNewRun = false;
run.setItalic(isItalic);
run.setBold(isBold);
if (isUnderlined) run.setUnderline(UnderlinePatterns.SINGLE); else run.setUnderline(UnderlinePatterns.NONE);
run.setColor(fontColor);
run.setFontSize(fontSize);
run.setFontFamily(fontFace);
run.setSubscript(align);
}
}
public static void main(String[] args)
{
new ReadHtml() ;
}
}
Please change the following line in your tail method, from
else if ("font".equals("nodeName"))
to
else if ("font".equals(nodeName))
You've compared two string literals instead of compare a string literal to the variable. Because of the typo the condition is always false, therefore fontSize is never reseted.
Related
Here is my code i am using
package testCases;
import org.openqa.selenium.By;
import org.testng.Reporter;
import org.testng.annotations.DataProvider;
import org.testng.annotations.Test;
import org.apache.commons.collections4.*;
import base.TestBase;
public class StudentRegistrationForm extends TestBase {
#Test(dataProvider="getData")
public void addStudent(String fname, String email, String CurrentAddress,String PermAddress) {
driver.get(confg.getProperty("url2"));
log.debug("Navigated to : " + confg.getProperty("url2"));
driver.findElement(By.cssSelector(or.getProperty("fullname"))).sendKeys(fname);
driver.findElement(By.cssSelector(or.getProperty("email"))).sendKeys(email);
driver.findElement(By.cssSelector(or.getProperty("currentAddress"))).sendKeys(CurrentAddress);
driver.findElement(By.cssSelector(or.getProperty("permAddress"))).sendKeys(PermAddress);
driver.findElement(By.cssSelector(or.getProperty("submit"))).click();
log.debug("Completed Test 2 - Student Registration Form");
Reporter.log("Completed Test 2 - Student Registration Form");
}
#DataProvider
public Object[][] getData(){
String SheetName = "sheet1";
int rows = excel.getRowCount(SheetName);
int cols = excel.getColumnCount(SheetName);
Object[][] data = new Object[rows-1][cols];
for(int RowNum = 2; RowNum < rows; RowNum++) {
for(int colNum = 0; colNum < cols; colNum++) {
data[RowNum-2][colNum] = excel.getCellData(SheetName, colNum, RowNum);
}
}
return data;
}
}
Also here is the excel reader. I don't know why I am getting an error attached in the picture:
package utilities;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.util.Calendar;
import org.apache.poi.common.usermodel.HyperlinkType;
import org.apache.commons.collections4.list.*;
import org.apache.poi.hssf.usermodel.HSSFDateUtil;
import org.apache.poi.hssf.util.HSSFColor;
import org.apache.poi.ss.usermodel.CellStyle;
import org.apache.poi.ss.usermodel.CellType;
import org.apache.poi.ss.usermodel.FillPatternType;
import org.apache.poi.ss.usermodel.IndexedColors;
import org.apache.poi.xssf.usermodel.XSSFCell;
import org.apache.poi.xssf.usermodel.XSSFCellStyle;
import org.apache.poi.xssf.usermodel.XSSFCreationHelper;
import org.apache.poi.xssf.usermodel.XSSFFont;
import org.apache.poi.xssf.usermodel.XSSFHyperlink;
import org.apache.poi.xssf.usermodel.XSSFRow;
import org.apache.poi.xssf.usermodel.XSSFSheet;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;
public class ExcelReader {
public String path;
public FileInputStream fis =null;
public FileOutputStream fileOut = null;
private XSSFWorkbook workbook = null;
private XSSFSheet sheet = null;
private XSSFRow row = null;
private XSSFCell cell = null;
public ExcelReader(String Path) {
this.path = Path;
try {
fis = new FileInputStream(Path);
workbook = new XSSFWorkbook(fis);
sheet = workbook.getSheetAt(0);
fis.close();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
public int getRowCount(String Sheetname) {
int sheetIndex = workbook.getSheetIndex(Sheetname);
if(sheetIndex ==-1)
return 0;
else {
sheet = workbook.getSheetAt(0);
int num = sheet.getLastRowNum();
return num;
}
}
public String getCellData(String sheetname, String colName, int rowNum) {
try {
if (rowNum <= 0)
return "";
int index = workbook.getSheetIndex(sheetname);
int col_num = -1;
if(index == -1)
return "";
sheet = workbook.getSheetAt(index);
row = sheet.getRow(0);
for(int i =0;i < row.getLastCellNum(); i++) {
System.out.println(row.getCell(i).getStringCellValue().trim());
if(row.getCell(i).getStringCellValue().trim().equals(colName.trim()))
col_num = i;
}
if(col_num == -1)
return "";
sheet = workbook.getSheetAt(index);
row = sheet.getRow(rowNum-1);
if(row == null)
return "";
cell = row.getCell(col_num);
if(cell==null)
return "";
if(cell.getCellType()==CellType.STRING)
return cell.getStringCellValue();
else if(cell.getCellType()==CellType.NUMERIC || cell.getCellType()==CellType.FORMULA ){
String cellText = String.valueOf(cell.getNumericCellValue());
if (HSSFDateUtil.isCellDateFormatted(cell)) {
double d = cell.getNumericCellValue();
Calendar cal =Calendar.getInstance();
cal.setTime(HSSFDateUtil.getJavaDate(d));
cellText =
(String.valueOf(cal.get(Calendar.YEAR))).substring(2);
cellText = cal.get(Calendar.DAY_OF_MONTH) + "/" +
cal.get(Calendar.MONTH)+1 + "/" +
cellText;
}
return cellText;
}else if(cell.getCellType()==CellType.BLANK)
return "";
else
return String.valueOf(cell.getBooleanCellValue());
}catch(Exception e) {
e.printStackTrace();
return "row "+rowNum+" or column "+colName +" does not exist in xls";
}
}
// returns the data from a cell
public String getCellData(String sheetName,int colNum,int rowNum){
try{
if(rowNum <=0)
return "";
int index = workbook.getSheetIndex(sheetName);
if(index==-1)
return "";
sheet = workbook.getSheetAt(index);
row = sheet.getRow(rowNum-1);
if(row==null)
return "";
cell = row.getCell(colNum);
if(cell==null)
return "";
if(cell.getCellType()==CellType.STRING)
return cell.getStringCellValue();
else if(cell.getCellType()==CellType.NUMERIC || cell.getCellType()==CellType.FORMULA ){
String cellText = String.valueOf(cell.getNumericCellValue());
if (HSSFDateUtil.isCellDateFormatted(cell)) {
// format in form of M/D/YY
double d = cell.getNumericCellValue();
Calendar cal =Calendar.getInstance();
cal.setTime(HSSFDateUtil.getJavaDate(d));
cellText =
(String.valueOf(cal.get(Calendar.YEAR))).substring(2);
cellText = cal.get(Calendar.MONTH)+1 + "/" +
cal.get(Calendar.DAY_OF_MONTH) + "/" +
cellText;
}
return cellText;
}else if(cell.getCellType()==CellType.BLANK)
return "";
else
return String.valueOf(cell.getBooleanCellValue());
}
catch(Exception e){
e.printStackTrace();
return "row "+rowNum+" or column "+colNum +" does not exist in xls";
}
}
// returns true if data is set successfully else false
public boolean setCellData(String sheetName,String colName,int rowNum, String data){
try{
fis = new FileInputStream(path);
workbook = new XSSFWorkbook(fis);
if(rowNum<=0)
return false;
int index = workbook.getSheetIndex(sheetName);
int colNum=-1;
if(index==-1)
return false;
sheet = workbook.getSheetAt(index);
row=sheet.getRow(0);
for(int i=0;i<row.getLastCellNum();i++){
//System.out.println(row.getCell(i).getStringCellValue().trim());
if(row.getCell(i).getStringCellValue().trim().equals(colName))
colNum=i;
}
if(colNum==-1)
return false;
sheet.autoSizeColumn(colNum);
row = sheet.getRow(rowNum-1);
if (row == null)
row = sheet.createRow(rowNum-1);
cell = row.getCell(colNum);
if (cell == null)
cell = row.createCell(colNum);
cell.setCellValue(data);
fileOut = new FileOutputStream(path);
workbook.write(fileOut);
fileOut.close();
}
catch(Exception e){
e.printStackTrace();
return false;
}
return true;
}
// returns true if data is set successfully else false
public boolean setCellData(String sheetName,String colName,int rowNum, String data,String url){
try{
fis = new FileInputStream(path);
workbook = new XSSFWorkbook(fis);
if(rowNum<=0)
return false;
int index = workbook.getSheetIndex(sheetName);
int colNum=-1;
if(index==-1)
return false;
sheet = workbook.getSheetAt(index);
row=sheet.getRow(0);
for(int i=0;i<row.getLastCellNum();i++){
if(row.getCell(i).getStringCellValue().trim().equalsIgnoreCase(colName))
colNum=i;
}
if(colNum==-1)
return false;
sheet.autoSizeColumn(colNum);
row = sheet.getRow(rowNum-1);
if (row == null)
row = sheet.createRow(rowNum-1);
cell = row.getCell(colNum);
if (cell == null)
cell = row.createCell(colNum);
cell.setCellValue(data);
XSSFCreationHelper createHelper = workbook.getCreationHelper();
//cell style for hyperlinks
CellStyle hlink_style = workbook.createCellStyle();
XSSFFont hlink_font = workbook.createFont();
hlink_font.setUnderline(XSSFFont.U_SINGLE);
hlink_font.setColor(IndexedColors.BLUE.getIndex());
hlink_style.setFont(hlink_font);
//hlink_style.setWrapText(true);
XSSFHyperlink link = createHelper.createHyperlink(HyperlinkType.FILE);
link.setAddress(url);
cell.setHyperlink(link);
cell.setCellStyle(hlink_style);
fileOut = new FileOutputStream(path);
workbook.write(fileOut);
fileOut.close();
}
catch(Exception e){
e.printStackTrace();
return false;
}
return true;
}
// returns true if sheet is created successfully else false
public boolean addSheet(String sheetname){
FileOutputStream fileOut;
try {
workbook.createSheet(sheetname);
fileOut = new FileOutputStream(path);
workbook.write(fileOut);
fileOut.close();
} catch (Exception e) {
e.printStackTrace();
return false;
}
return true;
}
// returns true if sheet is removed successfully else false if sheet does not exist
public boolean removeSheet(String sheetName){
int index = workbook.getSheetIndex(sheetName);
if(index==-1)
return false;
FileOutputStream fileOut;
try {
workbook.removeSheetAt(index);
fileOut = new FileOutputStream(path);
workbook.write(fileOut);
fileOut.close();
} catch (Exception e) {
e.printStackTrace();
return false;
}
return true;
}
// returns true if column is created successfully
public boolean addColumn(String sheetName,String colName){
try{
fis = new FileInputStream(path);
workbook = new XSSFWorkbook(fis);
int index = workbook.getSheetIndex(sheetName);
if(index==-1)
return false;
XSSFCellStyle style = workbook.createCellStyle();
style.setFillForegroundColor(HSSFColor.HSSFColorPredefined.GREY_40_PERCENT.getIndex());
style.setFillPattern(FillPatternType.SOLID_FOREGROUND);
sheet=workbook.getSheetAt(index);
row = sheet.getRow(0);
if (row == null)
row = sheet.createRow(0);
if(row.getLastCellNum() == -1)
cell = row.createCell(0);
else
cell = row.createCell(row.getLastCellNum());
cell.setCellValue(colName);
cell.setCellStyle(style);
fileOut = new FileOutputStream(path);
workbook.write(fileOut);
fileOut.close();
}catch(Exception e){
e.printStackTrace();
return false;
}
return true;
}
// removes a column and all the contents
public boolean removeColumn(String sheetName, int colNum) {
try{
if(!isSheetExist(sheetName))
return false;
fis = new FileInputStream(path);
workbook = new XSSFWorkbook(fis);
sheet=workbook.getSheet(sheetName);
XSSFCellStyle style = workbook.createCellStyle();
style.setFillForegroundColor(HSSFColor.HSSFColorPredefined.GREY_40_PERCENT.getIndex());
XSSFCreationHelper createHelper = workbook.getCreationHelper();
style.setFillPattern(FillPatternType.NO_FILL);
for(int i =0;i<getRowCount(sheetName);i++){
row=sheet.getRow(i);
if(row!=null){
cell=row.getCell(colNum);
if(cell!=null){
cell.setCellStyle(style);
row.removeCell(cell);
}
}
}
fileOut = new FileOutputStream(path);
workbook.write(fileOut);
fileOut.close();
}
catch(Exception e){
e.printStackTrace();
return false;
}
return true;
}
// find whether sheets exists
public boolean isSheetExist(String sheetName){
int index = workbook.getSheetIndex(sheetName);
if(index==-1){
index=workbook.getSheetIndex(sheetName.toUpperCase());
if(index==-1)
return false;
else
return true;
}
else
return true;
}
// returns number of columns in a sheet
public int getColumnCount(String sheetName){
// check if sheet exists
if(!isSheetExist(sheetName))
return -1;
sheet = workbook.getSheet(sheetName);
row = sheet.getRow(0);
if(row==null)
return -1;
return row.getLastCellNum();
}
//String sheetName, String testCaseName,String keyword ,String URL,String message
public boolean addHyperLink(String sheetName,String screenShotColName,String testCaseName,int index,String url,String message){
url=url.replace('\\', '/');
if(!isSheetExist(sheetName))
return false;
sheet = workbook.getSheet(sheetName);
for(int i=2;i<=getRowCount(sheetName);i++){
if(getCellData(sheetName, 0, i).equalsIgnoreCase(testCaseName)){
setCellData(sheetName, screenShotColName, i+index, message,url);
break;
}
}
return true;
}
public int getCellRowNum(String sheetName,String colName,String cellValue){
for(int i=2;i<=getRowCount(sheetName);i++){
if(getCellData(sheetName,colName , i).equalsIgnoreCase(cellValue)){
return i;
}
}
return -1;
}
// to run this on stand alone
public static void main(String arg[]) throws IOException{
ExcelReader datatable = null;
datatable = new ExcelReader("C:\\CM3.0\\app\\test\\Framework\\AutomationBvt\\src\\config\\xlfiles\\Controller.xlsx");
for(int col=0 ;col< datatable.getColumnCount("TC5"); col++){
System.out.println(datatable.getCellData("TC5", col, 1));
}
}
}
I dont know why this error occurs. I have added all the required dependencies. the excel reader is from a separe course and that doesn't show any error. only my code - which uses this class, is showing this error.
I'm new to Lucene so i downloaded an example from http://www.lucenetutorial.com/sample-apps/textfileindexer-java.html .
The code currently works, however, I think I am not correctly making use of Lucene. I can search a word (ex : is student) for the first time, but after that (still in the loop), if i search the same word, it will return an exception. (java.lang.NullPointerException)
Please help me fix it.
Here's my problem
Here's the code
import org.apache.lucene.analysis.standard.StandardAnalyzer;
import org.apache.lucene.document.Document;
import org.apache.lucene.document.Field;
import org.apache.lucene.document.StringField;
import org.apache.lucene.document.TextField;
import org.apache.lucene.index.DirectoryReader;
import org.apache.lucene.index.IndexReader;
import org.apache.lucene.index.IndexWriter;
import org.apache.lucene.index.IndexWriterConfig;
import org.apache.lucene.queryparser.classic.QueryParser;
import org.apache.lucene.search.IndexSearcher;
import org.apache.lucene.search.Query;
import org.apache.lucene.search.ScoreDoc;
import org.apache.lucene.search.TopScoreDocCollector;
import org.apache.lucene.store.FSDirectory;
import org.apache.lucene.util.Version;
import java.io.*;
import java.util.ArrayList;
public class TextFileIndexer {
private static StandardAnalyzer analyzer = new StandardAnalyzer(Version.LUCENE_40);
private IndexWriter writer;
private ArrayList<File> queue = new ArrayList<File>();
public static void main(String[] args) throws IOException {
System.out.println("Enter the path where the index will be created: (e.g. /tmp/index or c:\temp\index)");
String indexLocation = null;
BufferedReader br = new BufferedReader(
new InputStreamReader(System.in));
String s = br.readLine();
TextFileIndexer indexer = null;
try {
indexLocation = s;
indexer = new TextFileIndexer(s);
} catch (Exception ex) {
System.out.println("Cannot create index..." + ex.getMessage());
System.exit(-1);
}
while (!s.equalsIgnoreCase("q")) {
try {
System.out.println("Enter the full path to add into the index (q=quit): (e.g. /home/ron/mydir or c:\Users\ron\mydir)");
System.out.println("[Acceptable file types: .xml, .html, .html, .txt]");
s = br.readLine();
if (s.equalsIgnoreCase("q")) {
break;
}
indexer.indexFileOrDirectory(s);
} catch (Exception e) {
System.out.println("Error indexing " + s + " : " + e.getMessage());
}
}
indexer.closeIndex();
IndexReader reader = DirectoryReader.open(FSDirectory.open(new File(indexLocation)));
IndexSearcher searcher = new IndexSearcher(reader);
TopScoreDocCollector collector = TopScoreDocCollector.create(5, true);
s = "";
while (!s.equalsIgnoreCase("q")) {
try {
System.out.println("Enter the search query (q=quit):");
s = br.readLine();
if (s.equalsIgnoreCase("q")) {
break;
}
Query q = new QueryParser(Version.LUCENE_40, "contents", analyzer).parse(s);
searcher.search(q, collector);
ScoreDoc[] hits = collector.topDocs().scoreDocs;
// 4. display results
System.out.println("Found " + hits.length + " hits.");
for(int i=0;i<hits.length;++i) {
int docId = hits[i].doc;
Document d = searcher.doc(docId);
System.out.println((i + 1) + ". " + d.get("path") + " score=" + hits[i].score);
}
} catch (Exception e) {
System.out.println("Error searching " + s + " : " + e.getMessage());
}
}
}
/**
* Constructor
* #param indexDir the name of the folder in which the index should be created
* #throws java.io.IOException when exception creating index.
*/
TextFileIndexer(String indexDir) throws IOException {
FSDirectory dir = FSDirectory.open(new File(indexDir));
IndexWriterConfig config = new IndexWriterConfig(Version.LUCENE_40, analyzer);
writer = new IndexWriter(dir, config);
}
/**
* Indexes a file or directory
* #param fileName the name of a text file or a folder we wish to add to the index
* #throws java.io.IOException when exception
*/
public void indexFileOrDirectory(String fileName) throws IOException {
addFiles(new File(fileName));
int originalNumDocs = writer.numDocs();
for (File f : queue) {
FileReader fr = null;
try {
Document doc = new Document();
fr = new FileReader(f);
doc.add(new TextField("contents", fr));
doc.add(new StringField("path", f.getPath(), Field.Store.YES));
doc.add(new StringField("filename", f.getName(), Field.Store.YES));
writer.addDocument(doc);
System.out.println("Added: " + f);
} catch (Exception e) {
System.out.println("Could not add: " + f);
} finally {
fr.close();
}
}
int newNumDocs = writer.numDocs();
System.out.println("");
System.out.println("************************");
System.out.println((newNumDocs - originalNumDocs) + " documents added.");
System.out.println("************************");
queue.clear();
}
private void addFiles(File file) {
if (!file.exists()) {
System.out.println(file + " does not exist.");
}
if (file.isDirectory()) {
for (File f : file.listFiles()) {
addFiles(f);
}
} else {
String filename = file.getName().toLowerCase();
if (filename.endsWith(".htm") || filename.endsWith(".html") ||
filename.endsWith(".xml") || filename.endsWith(".txt")) {
queue.add(file);
} else {
System.out.println("Skipped " + filename);
}
}
}
public void closeIndex() throws IOException {
writer.close();
}
}
p/s: English is not my mother tongue so please ignore my grammar or word mistake.
I have checked your code. Simply you must instantiate the TopScoreDocCollector in the cycle before the method search. Below a snippet of your code with the comments where I changed the code:
...
//REMOVE AND INSTANTIATE IN THE CYCLE! TopScoreDocCollector collector = TopScoreDocCollector.create ( 5, true );
s = "";
while ( !s.equalsIgnoreCase ( "q" ) ) {
try {
System.out.println ( "Enter the search query (q=quit):" );
s = br.readLine ();
if ( s.equalsIgnoreCase ( "q" ) ) {
break;
}
// INTANTIATE HERE!!!
TopScoreDocCollector collector = TopScoreDocCollector.create ( 5, true );
Query q = new QueryParser ( Version.LUCENE_40, "contents", analyzer ).parse ( s );
searcher.search ( q, collector );
...
Otherwise you can use another signature of the method search and remove definitely the explicit instance of TopScoreDocCollector. For example:
TopDocs topDocs = searcher.search ( q, 5);
ScoreDoc[] hits = topDocs.scoreDocs;
I think you can solve your problem.
I've been working on a new plugin, and when I load it up, it gives me a "NullPointerException" error, and I can't seem to find where it could find an error. Here is the error:
[20:15:45] [Server thread/INFO]: [EntityManager] Enabling EntityManager v3.0.0.4
[20:15:45] [Server thread/INFO]: [0;31;1mEntityManager [0;32;1m3.0.0.4[0;36;1m Enabled![m
[20:15:45] [Server thread/ERROR]: Error occurred while enabling EntityManager v3.0.0.4 (Is it up to date?)
java.lang.NullPointerException
at me.AngryCupcake274.EntityManager.EntityManager.loadConfiguration(EntityManager.java:296) ~[?:?]
at me.AngryCupcake274.EntityManager.EntityManager.onEnable(EntityManager.java:63) ~[?:?]
at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:316) ~[spigot.jar:git-Spigot-1649]
at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:332) [spigot.jar:git-Spigot-1649]
at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:417) [spigot.jar:git-Spigot-1649]
at org.bukkit.craftbukkit.v1_7_R4.CraftServer.loadPlugin(CraftServer.java:476) [spigot.jar:git-Spigot-1649]
at org.bukkit.craftbukkit.v1_7_R4.CraftServer.enablePlugins(CraftServer.java:394) [spigot.jar:git-Spigot-1649]
at net.minecraft.server.v1_7_R4.MinecraftServer.n(MinecraftServer.java:360) [spigot.jar:git-Spigot-1649]
at net.minecraft.server.v1_7_R4.MinecraftServer.g(MinecraftServer.java:334) [spigot.jar:git-Spigot-1649]
at net.minecraft.server.v1_7_R4.MinecraftServer.a(MinecraftServer.java:290) [spigot.jar:git-Spigot-1649]
at net.minecraft.server.v1_7_R4.DedicatedServer.init(DedicatedServer.java:210) [spigot.jar:git-Spigot-1649]
at net.minecraft.server.v1_7_R4.MinecraftServer.run(MinecraftServer.java:458) [spigot.jar:git-Spigot-1649]
at net.minecraft.server.v1_7_R4.ThreadServerApplication.run(SourceFile:628) [spigot.jar:git-Spigot-1649]
package me.AngryCupcake274.EntityManager;
import org.bukkit.Bukkit;
import org.bukkit.ChatColor;
import org.bukkit.Server;
import org.bukkit.command.ConsoleCommandSender;
import org.bukkit.entity.*;
import org.bukkit.event.Listener;
import org.bukkit.plugin.PluginDescriptionFile;
import org.bukkit.plugin.java.JavaPlugin;
import org.bukkit.scheduler.BukkitScheduler;
public class EntityManager extends JavaPlugin implements Listener {
RemoveEntities reme;
CommandHandler comh;
CleanEntities cent;
int loopdelay;
String oneminutemessage;
String oneminutecolor;
String threesecondsmessage;
String threesecondscolor;
String twosecondsmessage;
String twosecondscolor;
String onesecondmessage;
String onesecondcolor;
String finalmessage;
String finalcolor;
String oneMinWarn;
String threeSecWarn;
String twoSecWarn;
String oneSecWarn;
String removeInfo;
String[] worldNames;
Server server = Bukkit.getServer();
ConsoleCommandSender console = server.getConsoleSender();
PluginDescriptionFile pdf = this.getDescription();
String pdfEnable = ChatColor.RED + pdf.getName() + " " + ChatColor.GREEN
+ pdf.getVersion() + ChatColor.AQUA + " Enabled!";
String pdfDisable = ChatColor.RED + pdf.getName() + " " + ChatColor.GREEN
+ pdf.getVersion() + ChatColor.DARK_PURPLE + " Enabled!";
Player cleaner;
int counter = 0;
int totalcounter = 0;
#Override
public void onEnable() {
console.sendMessage(pdfEnable);
BukkitScheduler scheduler = Bukkit.getServer().getScheduler();
saveDefaultConfig();
loadConfiguration();
scheduler.scheduleSyncRepeatingTask(this, new Runnable() {
#Override
public void run() {
for (int first = 0; first >= 1; first++) {
cleanUp();
}
}
}, 0L, 12000L);
}
#Override
public void onDisable() {
console.sendMessage(pdfDisable);
}
#SuppressWarnings("deprecation")
public void cleanUp() {
// warn
for (Player player : Bukkit.getOnlinePlayers()) {
player.sendMessage(oneMinWarn);
}
console.sendMessage(oneMinWarn);
BukkitScheduler warn3 = Bukkit.getServer().getScheduler();
warn3.scheduleSyncDelayedTask(this, new Runnable() {
#Override
public void run() {
for (Player player : Bukkit.getOnlinePlayers()) {
player.sendMessage(threeSecWarn);
}
console.sendMessage(threeSecWarn);
}
}, 1220L);
BukkitScheduler warn2 = Bukkit.getServer().getScheduler();
warn2.scheduleSyncDelayedTask(this, new Runnable() {
#Override
public void run() {
for (Player player : Bukkit.getOnlinePlayers()) {
player.sendMessage(twoSecWarn);
}
console.sendMessage(twoSecWarn);
}
}, 1240L);
BukkitScheduler warn1 = Bukkit.getServer().getScheduler();
warn1.scheduleSyncDelayedTask(this, new Runnable() {
#Override
public void run() {
for (Player player : Bukkit.getOnlinePlayers()) {
player.sendMessage(oneSecWarn);
}
console.sendMessage(oneSecWarn);
}
}, 1260L);
BukkitScheduler doAction = Bukkit.getServer().getScheduler();
doAction.scheduleSyncDelayedTask(this, new Runnable() {
#Override
public void run() {
reme.removeEntities();
}
}, 1280L);
}
#SuppressWarnings("deprecation")
public void cleanUpCommand() {
// warn
for (Player player : Bukkit.getOnlinePlayers()) {
player.sendMessage(threeSecWarn);
}
console.sendMessage(threeSecWarn);
BukkitScheduler warn2c = Bukkit.getServer().getScheduler();
warn2c.scheduleSyncDelayedTask(this, new Runnable() {
#Override
public void run() {
for (Player player : Bukkit.getOnlinePlayers()) {
player.sendMessage(twoSecWarn);
}
console.sendMessage(twoSecWarn);
}
}, 20L);
BukkitScheduler warn1c = Bukkit.getServer().getScheduler();
warn1c.scheduleSyncDelayedTask(this, new Runnable() {
#Override
public void run() {
for (Player player : Bukkit.getOnlinePlayers()) {
player.sendMessage(oneSecWarn);
}
console.sendMessage(oneSecWarn);
}
}, 40L);
BukkitScheduler doAction = Bukkit.getServer().getScheduler();
doAction.scheduleSyncDelayedTask(this, new Runnable() {
#Override
public void run() {
for (Player player : Bukkit.getOnlinePlayers()) {
player.sendMessage(removeInfo);
}
console.sendMessage(removeInfo);
}
}, 60L);
}
public void cleanUpCommand2() {
BukkitScheduler doAction = Bukkit.getServer().getScheduler();
doAction.scheduleSyncDelayedTask(this, new Runnable() {
#Override
public void run() {
reme.removeEntities();
}
}, 0L);
}
public void loadConfiguration() {
String ltime = "looptime";
String onemmsg = "oneminute.message";
String onemcolor = "oneminute.color";
String threesmsg = "threeseconds.message";
String threescolor = "threeseconds.color";
String twosmsg = "twoseconds.message";
String twoscolor = "twoseconds.color";
String onesmsg = "onesecond.message";
String onescolor = "onesecond.color";
String fmsg = "final.message";
String fcolor = "final.color";
String arrowr = "arrow";
String boatr = "boat";
String itemr = "dropped_item";
String eggr = "egg";
String enderdragonr = "ender_dragon";
String enderpearlr = "ender_pearl";
String endersignalr = "ender_signal";
String xporbr = "experience_orb";
String fireballr = "fireball";
String fireworkr = "firework";
String fishinghookr = "fishing_hook";
String itemframer = "item_frame";
String leashr = "leash_hitch";
String lightningr = "lightning";
String minecartr = "minecart";
String minecartchestr = "minecart_chest";
String minecartcommandr = "minecart_command";
String minecartfurnacer = "minecart_furnace";
String minecarthopperr = "minecart_hopper";
String minecartmobspawnerr = "minecart_mob_spawner";
String minecarttntr = "minecart_tnt";
String paintingr = "painting";
String primedtntr = "primed_tnt";
String sfireballr = "small_fireball";
String snowballr = "snowball";
String splashpotionr = "splash_potion";
String expbottler = "exp_bottle";
String thrownxpbottler = "thrown_exp_bottle";
String witherskullr = "wither_skull";
getConfig().addDefault(ltime, (10 * 60 * 20));
getConfig().addDefault(onemmsg,
"Ground items will be removed in 1 minute!");
getConfig().addDefault(onemcolor, "AQUA");
getConfig().addDefault(threesmsg,
"Ground items will be removed in 3 seconds!");
getConfig().addDefault(threescolor, "DARK_GREEN");
getConfig().addDefault(twosmsg, "2 seconds!");
getConfig().addDefault(twoscolor, "GOLD");
getConfig().addDefault(onesmsg, "1 second!");
getConfig().addDefault(onescolor, "RED");
getConfig().addDefault(fmsg, "Ground items will be removed!");
getConfig().addDefault(fcolor, "DARK_RED");
getConfig().addDefault(arrowr, true);
getConfig().addDefault(boatr, false);
getConfig().addDefault(itemr, true);
getConfig().addDefault(eggr, true);
getConfig().addDefault(enderdragonr, false);
getConfig().addDefault(enderpearlr, true);
getConfig().addDefault(endersignalr, true);
getConfig().addDefault(xporbr, true);
getConfig().addDefault(fireballr, true);
getConfig().addDefault(fireworkr, true);
getConfig().addDefault(fishinghookr, false);
getConfig().addDefault(itemframer, false);
getConfig().addDefault(leashr, false);
getConfig().addDefault(lightningr, true);
getConfig().addDefault(minecartr, false);
getConfig().addDefault(minecartchestr, false);
getConfig().addDefault(minecartcommandr, false);
getConfig().addDefault(minecartfurnacer, false);
getConfig().addDefault(minecarthopperr, false);
getConfig().addDefault(minecartmobspawnerr, false);
getConfig().addDefault(minecarttntr, false);
getConfig().addDefault(paintingr, false);
getConfig().addDefault(primedtntr, true);
getConfig().addDefault(sfireballr, true);
getConfig().addDefault(snowballr, true);
getConfig().addDefault(splashpotionr, true);
getConfig().addDefault(expbottler, true);
getConfig().addDefault(thrownxpbottler, true);
getConfig().addDefault(witherskullr, true);
getConfig().options().copyDefaults(true);
saveConfig();
loopdelay = getConfig().getInt("looptime");
oneminutemessage = getConfig().getString("oneminute.message");
oneminutecolor = getConfig().getString("oneminute.color");
threesecondsmessage = getConfig().getString("threeseconds.message");
threesecondscolor = getConfig().getString("threeseconds.color");
twosecondsmessage = getConfig().getString("twoseconds.message");
twosecondscolor = getConfig().getString("twoseconds.color");
onesecondmessage = getConfig().getString("onesecond.message");
onesecondcolor = getConfig().getString("onesecond.color");
finalmessage = getConfig().getString("final.message");
finalcolor = getConfig().getString("final.color");
oneMinWarn = ChatColor.valueOf(oneminutecolor) + oneminutemessage;
threeSecWarn = ChatColor.valueOf(threesecondscolor)
+ threesecondsmessage;
twoSecWarn = ChatColor.valueOf(twosecondscolor) + twosecondsmessage;
oneSecWarn = ChatColor.valueOf(onesecondcolor) + onesecondmessage;
removeInfo = ChatColor.valueOf(finalcolor) + finalmessage;
reme.arrow = getConfig().getBoolean("arrow");
reme.boat = getConfig().getBoolean("boat");
reme.droppeditem = getConfig().getBoolean("dropped_item");
reme.egg = getConfig().getBoolean("egg");
reme.enderpearl = getConfig().getBoolean("ender_pearl");
reme.endersignal = getConfig().getBoolean("ender_signal");
reme.experienceorb = getConfig().getBoolean("experience_orb");
reme.fireball = getConfig().getBoolean("fireball");
reme.firework = getConfig().getBoolean("firework");
reme.fishinghook = getConfig().getBoolean("fishing_hook");
reme.itemframe = getConfig().getBoolean("item_frame");
reme.leashhitch = getConfig().getBoolean("leash_hitch");
reme.lightning = getConfig().getBoolean("lightning");
reme.minecart = getConfig().getBoolean("minecart");
reme.minecartchest = getConfig().getBoolean("minecart_chest");
reme.minecartcommand = getConfig().getBoolean("minecart_command");
reme.minecartfurnace = getConfig().getBoolean("minecart_furnace");
reme.minecarthopper = getConfig().getBoolean("minecart_hopper");
reme.minecartmobspawner = getConfig().getBoolean("minecart_mob_spawner");
reme.minecarttnt = getConfig().getBoolean("minecart_tnt");
reme.painting = getConfig().getBoolean("painting");
reme.primedtnt = getConfig().getBoolean("primed_tnt");
reme.smallfireball = getConfig().getBoolean("small_fireball");
reme.snowball = getConfig().getBoolean("snowball");
reme.splashpotion = getConfig().getBoolean("splash_potion");
reme.thrownexpbottle = getConfig().getBoolean("exp_bottle");
reme.witherskull = getConfig().getBoolean("wither_skull");
saveDefaultConfig();
}
public void reloadPlugin() {
reloadConfig();
loopdelay = getConfig().getInt("looptime");
oneminutemessage = getConfig().getString("oneminute.message");
oneminutecolor = getConfig().getString("oneminute.color");
threesecondsmessage = getConfig().getString("threeseconds.message");
threesecondscolor = getConfig().getString("threeseconds.color");
twosecondsmessage = getConfig().getString("twoseconds.message");
twosecondscolor = getConfig().getString("twoseconds.color");
onesecondmessage = getConfig().getString("onesecond.message");
onesecondcolor = getConfig().getString("onesecond.color");
finalmessage = getConfig().getString("final.message");
finalcolor = getConfig().getString("final.color");
reme.arrow = getConfig().getBoolean("arrow");
reme.boat = getConfig().getBoolean("boat");
reme.droppeditem = getConfig().getBoolean("dropped_item");
reme.egg = getConfig().getBoolean("egg");
reme.enderpearl = getConfig().getBoolean("ender_pearl");
reme.endersignal = getConfig().getBoolean("ender_signal");
reme.experienceorb = getConfig().getBoolean("experience_orb");
reme.fireball = getConfig().getBoolean("fireball");
reme.firework = getConfig().getBoolean("firework");
reme.fishinghook = getConfig().getBoolean("fishing_hook");
reme.itemframe = getConfig().getBoolean("item_frame");
reme.leashhitch = getConfig().getBoolean("leash_hitch");
reme.lightning = getConfig().getBoolean("lightning");
reme.minecart = getConfig().getBoolean("minecart");
reme.minecartchest = getConfig().getBoolean("minecart_chest");
reme.minecartcommand = getConfig().getBoolean("minecart_command");
reme.minecartfurnace = getConfig().getBoolean("minecart_furnace");
reme.minecarthopper = getConfig().getBoolean("minecart_hopper");
reme.minecartmobspawner = getConfig().getBoolean("minecart_mob_spawner");
reme.minecarttnt = getConfig().getBoolean("minecart_tnt");
reme.painting = getConfig().getBoolean("painting");
reme.primedtnt = getConfig().getBoolean("primed_tnt");
reme.smallfireball = getConfig().getBoolean("small_fireball");
reme.snowball = getConfig().getBoolean("snowball");
reme.splashpotion = getConfig().getBoolean("splash_potion");
reme.thrownexpbottle = getConfig().getBoolean("exp_bottle");
reme.witherskull = getConfig().getBoolean("wither_skull");
getServer().getScheduler().cancelTasks(this);
getServer().getPluginManager().disablePlugin(this);
getServer().getPluginManager().enablePlugin(this);
}
}
me.AngryCupcake274.EntityManager.EntityManager.loadConfiguration(EntityManager.java:296)
The exception is thrown at line 296 of your EntityManager.java file.
reme.arrow = getConfig().getBoolean("arrow");
At this point of time reme is still null and therefore you can't assign arrow.
You should ensure that RemoveEntitites is already instantiated once you call loadConfiguration() in your onEnable() method.
Also see What is a NPE and how do I fix it?.
I did it!
Instead of setting the RemoveEntities variables, I told the RemoveEntities class to find the variables in the EntityManager class.
There is a bug somewhere here. For some reason, when I am sending the message to the server, every message is received twice for any single keystroke! for instance, i type "a", and the server receives "INSERT 0 1 a" "INSERT 0 1 a". I'm not sure why it happens twice do you know?
package client;
import javax.swing.*;
import java.io.BufferedReader;
import java.io.PrintWriter;
import java.net.InetAddress;
import java.net.Socket;
import java.util.*;
import javax.swing.event.CaretEvent;
import javax.swing.event.CaretListener;
import javax.swing.event.DocumentEvent;
import javax.swing.event.DocumentListener;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.KeyEvent;
import java.awt.event.KeyListener;
import javax.swing.text.BadLocationException;
import javax.swing.text.Document;
public class JTextAreaListen extends JFrame implements KeyListener,
CaretListener {
private static final long serialVersionUID = 6950001634065526391L;
private JTextArea textArea;
protected final PrintWriter out;
protected final int id;
protected final BufferedReader in;
protected static int caretPos;
private static int cMark;
protected static boolean text_selected;
/*
* Connecting to server. (1337 is the port we are going to use).
*
* socket = new Socket(InetAddress.getByName("127.0.0.1"), 1337);
*
* (Open a new outStream, you can save this instead of opening on every time
* you want to send a message. If the connection is lost your should to
* out.close();
*
* out = new PrintWriter(socket.getOutputStream(), true);
*
* out.print("message"); to send something to the server.
*/
public JTextAreaListen(PrintWriter out, BufferedReader in, int id) {
super("JTextAreaListen");
this.id = id;
this.out = out;
this.in = in;
TextEditor.document.addCaretListener(this);
TextEditor.document.addKeyListener(this);
}
// Listener methods
public void changedUpdate(DocumentEvent ev) {
}
public void removeUpdate(DocumentEvent ev) {
}
public void insertUpdate(DocumentEvent ev) {
}
#Override
public void keyPressed(KeyEvent arg0) {
System.out.print("KeyPressedd");
}
#Override
public void keyReleased(KeyEvent arg0) {
// TODO Auto-generated method stub
}
#Override
public void keyTyped(KeyEvent ev) {
System.out.println(ev.KEY_PRESSED);
System.out.println("Sth happening!");
System.out.println(ev.getKeyCode());
int evID = ev.getID();
String keyString;
int keyCode;
if (evID == KeyEvent.KEY_TYPED) {
if (ev.getKeyChar() == KeyEvent.CHAR_UNDEFINED) {
keyCode = ev.getKeyCode();
if (keyCode == 8) {
if (text_selected) {
if (caretPos > cMark) {
for (int i = caretPos; i >= cMark; i--) {
System.out.println("sm1");
sendMessage("DELETE" + " " + String.valueOf(id)
+ " " + String.valueOf(cMark + 1));
}
} else if (caretPos < cMark) {
for (int i = caretPos; i >= cMark; i++) {
System.out.println("sm2");
sendMessage("DELETE" + " " + String.valueOf(id)
+ " " + String.valueOf(cMark + 1));
}
}
} else {
System.out.println("sm3");
sendMessage("DELETE" + " " + String.valueOf(id) + " "
+ String.valueOf(caretPos + 1));
}
}
} else {
char c = ev.getKeyChar();
boolean capital = ev.isShiftDown();
String charString = String.valueOf(c);
if (capital) {
charString.toUpperCase();
}
if (text_selected) {
if (caretPos > cMark) {
for (int i = caretPos; i >= cMark; i--) {
System.out.println("sm4");
sendMessage("DELETE" + " " + String.valueOf(id)
+ " " + String.valueOf(cMark + 1));
}
System.out.println("sm5");
sendMessage("INSERT" + " " + String.valueOf(id) + " "
+ String.valueOf(cMark) + " " + charString);
} else if (caretPos < cMark) {
for (int i = caretPos; i >= cMark; i++) {
System.out.println("sm6");
sendMessage("DELETE" + " " + String.valueOf(id)
+ " " + String.valueOf(caretPos + 1));
}
System.out.println("sm7");
sendMessage("INSERT" + " " + String.valueOf(id) + " "
+ String.valueOf(caretPos) + " " + charString);
}
} else {
System.out.println("sm8");
sendMessage("INSERT" + " " + String.valueOf(id) + " "
+ String.valueOf(caretPos) + " " + charString);
}
}
}
}
public void sendMessage(String s) {
System.out.println("smReal");
out.println(s);
}
#Override
public void caretUpdate(CaretEvent cev) {
int dot = cev.getDot();
int mark = cev.getMark();
caretPos = dot;
cMark = mark;
if (dot == mark) {
text_selected = false;
} else if ((dot < mark) | (dot > mark)) {
text_selected = true;
}
}
}
Here is the code for the client containing the TextArea which calls this Listener.
package client;
import java.awt.BorderLayout;
import java.awt.Font;
import java.awt.Toolkit;
import java.awt.event.ActionEvent;
import java.awt.event.KeyAdapter;
import java.awt.event.KeyEvent;
import java.awt.event.KeyListener;
import java.io.BufferedReader;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.io.PrintWriter;
import javax.swing.AbstractAction;
import javax.swing.Action;
import javax.swing.ActionMap;
import javax.swing.ImageIcon;
import javax.swing.JButton;
import javax.swing.JFileChooser;
import javax.swing.JFrame;
import javax.swing.JMenu;
import javax.swing.JMenuBar;
import javax.swing.JOptionPane;
import javax.swing.JScrollPane;
import javax.swing.JTextArea;
import javax.swing.JToolBar;
import javax.swing.text.DefaultEditorKit;
public class TextEditor extends JFrame {
private static final long serialVersionUID = 5991470239888613993L;
protected static JTextArea document = new JTextArea(20, 120);
private JFileChooser dialog = new JFileChooser(
System.getProperty("user.dir"));
private String currentFile = "Untitled";
private boolean changed = false;
private int id;
private final BufferedReader in;
private final PrintWriter out;
public TextEditor(final PrintWriter out, final BufferedReader in, int id) {
this.out = out;
this.in = in;
this.id = id;
document.setFont(new Font("Monospaced", Font.PLAIN, 12));
JScrollPane scroll = new JScrollPane(document,
JScrollPane.VERTICAL_SCROLLBAR_ALWAYS,
JScrollPane.HORIZONTAL_SCROLLBAR_ALWAYS);
this.add(scroll, BorderLayout.CENTER);
JMenuBar JMB = new JMenuBar();
this.setJMenuBar(JMB);
JMenu file = new JMenu("File");
JMenu edit = new JMenu("Edit");
JMB.add(file);
JMB.add(edit);
file.add(Open);
file.add(Save);
file.add(Quit);
file.add(SaveAs);
file.addSeparator();
for (int i = 0; i < 4; i++)
file.getItem(i).setIcon(null);
edit.add("Cut");
edit.add("Copy");
edit.add("Paste");
edit.getItem(0).setText("Cut");
edit.getItem(1).setText("Copy");
edit.getItem(2).setText("Paste");
JToolBar tool = new JToolBar();
this.add(tool, BorderLayout.NORTH);
tool.add(Open);
tool.add(Save);
tool.addSeparator();
JButton cut = tool.add(Cut), copy = tool.add(Copy), paste = tool
.add(Paste);
cut.setText(null);
cut.setIcon(new ImageIcon("cut.png"));
copy.setText(null);
copy.setIcon(new ImageIcon("copy.png"));
paste.setText(null);
paste.setIcon(new ImageIcon("paste.png"));
Save.setEnabled(false);
SaveAs.setEnabled(false);
this.setDefaultCloseOperation(EXIT_ON_CLOSE);
this.pack();
document.addKeyListener(new JTextAreaListen(out, in, id));
setTitle(currentFile);
setVisible(true);
final int id2 = id;
Thread t = new Thread(new Runnable() {
public void run() {
out.println("GET " + id2);
while (true) {
out.println("GET " + id2);
String line = null;
do {
try {
line = in.readLine();
} catch (IOException e) {
JOptionPane.showMessageDialog(null,
"Connection Lost", "Error",
JOptionPane.ERROR_MESSAGE);
System.exit(-1);
}
} while (line == null);
int temp = JTextAreaListen.caretPos;
document.setText(line);
document.setCaretPosition(temp);
}
}
});
t.start();
}
private KeyListener keyPressed = new KeyAdapter() {
public void keyPressed(KeyEvent e) {
changed = true;
Save.setEnabled(true);
SaveAs.setEnabled(true);
}
};
Action Open = new AbstractAction("Open", new ImageIcon("open.png")) {
private static final long serialVersionUID = -474289105133169886L;
public void actionPerformed(ActionEvent e) {
saveOld();
if (dialog.showOpenDialog(null) == JFileChooser.APPROVE_OPTION) {
readInFile(dialog.getSelectedFile().getAbsolutePath());
}
SaveAs.setEnabled(true);
}
};
Action Save = new AbstractAction("Save", new ImageIcon("save.png")) {
private static final long serialVersionUID = 2064233284536910855L;
public void actionPerformed(ActionEvent e) {
if (!currentFile.equals("Untitled"))
saveFile(currentFile);
else
saveFileAs();
}
};
Action SaveAs = new AbstractAction("Save as...") {
private static final long serialVersionUID = -5473532525926088880L;
public void actionPerformed(ActionEvent e) {
saveFileAs();
}
};
Action Quit = new AbstractAction("Quit") {
private static final long serialVersionUID = -5339245808869817726L;
public void actionPerformed(ActionEvent e) {
saveOld();
System.exit(0);
}
};
ActionMap m = document.getActionMap();
Action Cut = m.get(DefaultEditorKit.cutAction);
Action Copy = m.get(DefaultEditorKit.copyAction);
Action Paste = m.get(DefaultEditorKit.pasteAction);
private void saveFileAs() {
if (dialog.showSaveDialog(null) == JFileChooser.APPROVE_OPTION)
saveFile(dialog.getSelectedFile().getAbsolutePath());
}
private void saveOld() {
if (changed) {
if (JOptionPane.showConfirmDialog(this, "Save " + currentFile
+ " ?", "Save", JOptionPane.YES_NO_OPTION) == JOptionPane.YES_OPTION)
saveFile(currentFile);
}
}
private void readInFile(String fileName) {
try {
FileReader r = new FileReader(fileName);
document.read(r, null);
r.close();
currentFile = fileName;
setTitle(currentFile);
changed = false;
} catch (IOException e) {
Toolkit.getDefaultToolkit().beep();
JOptionPane.showMessageDialog(this, "Could not find " + fileName);
}
}
private void saveFile(String fileName) {
try {
FileWriter w = new FileWriter(fileName);
document.write(w);
w.close();
currentFile = fileName;
setTitle(currentFile);
changed = false;
Save.setEnabled(false);
} catch (IOException e) {
JOptionPane
.showMessageDialog(this,
"An error has occurred. Your document may not have been saved");
}
}
}
This code plots a XYLineChart and a straigth line: by left mouse click and drag anywhere on the graph, XYLine is translated left/right and up down while the black line do not.
I would like to bind the black line and the XYLine so that when I click and drag, both lines move together.
How to accomplish this?
Thanks
import javafx.application.Application;
import javafx.beans.property.SimpleDoubleProperty;
import javafx.event.EventHandler;
import javafx.scene.chart.NumberAxis;
import javafx.scene.chart.XYChart;
import javafx.stage.Stage;
import javafx.scene.Scene;
import javafx.scene.Node;
import javafx.scene.chart.LineChart;
import javafx.scene.input.MouseEvent;
import javafx.scene.layout.BorderPane;
import javafx.scene.paint.Color;
import javafx.scene.shape.LineTo;
import javafx.scene.shape.MoveTo;
import javafx.scene.shape.Path;
public class JavaFXMovePath extends Application {
Path path;
BorderPane pane;
XYChart.Series series1 = new XYChart.Series();
SimpleDoubleProperty rectinitX = new SimpleDoubleProperty();
SimpleDoubleProperty rectinitY = new SimpleDoubleProperty();
SimpleDoubleProperty rectX = new SimpleDoubleProperty();
SimpleDoubleProperty rectY = new SimpleDoubleProperty();
#Override
public void start(Stage stage) {
final NumberAxis xAxis = new NumberAxis(1, 12, 1);
final NumberAxis yAxis = new NumberAxis(0.53000, 0.53910, 0.0005);
xAxis.setAnimated(false);
yAxis.setAnimated(false);
yAxis.setTickLabelFormatter(new NumberAxis.DefaultFormatter(yAxis) {
#Override
public String toString(Number object) {
return String.format("%7.5f", object);
}
});
final LineChart<Number, Number> lineChart = new LineChart<Number, Number>(xAxis, yAxis);
lineChart.setCreateSymbols(false);
lineChart.setAlternativeRowFillVisible(false);
lineChart.setAnimated(false);
lineChart.setLegendVisible(false);
series1.getData().add(new XYChart.Data(1, 0.53185));
series1.getData().add(new XYChart.Data(2, 0.532235));
series1.getData().add(new XYChart.Data(3, 0.53234));
series1.getData().add(new XYChart.Data(4, 0.538765));
series1.getData().add(new XYChart.Data(5, 0.53442));
series1.getData().add(new XYChart.Data(6, 0.534658));
series1.getData().add(new XYChart.Data(7, 0.53023));
series1.getData().add(new XYChart.Data(8, 0.53001));
series1.getData().add(new XYChart.Data(9, 0.53589));
series1.getData().add(new XYChart.Data(10, 0.53476));
pane = new BorderPane();
pane.setCenter(lineChart);
Scene scene = new Scene(pane, 800, 600);
lineChart.getData().addAll(series1);
stage.setScene(scene);
path = new Path();
path.setStrokeWidth(5);
path.setStroke(Color.RED);
scene.setOnMouseClicked(mouseHandler);
scene.setOnMouseDragged(mouseHandler);
scene.setOnMouseEntered(mouseHandler);
scene.setOnMouseExited(mouseHandler);
scene.setOnMouseMoved(mouseHandler);
scene.setOnMousePressed(mouseHandler);
scene.setOnMouseReleased(mouseHandler);
stage.show();
}
EventHandler<MouseEvent> mouseHandler = new EventHandler<MouseEvent>() {
#Override
public void handle(MouseEvent mouseEvent) {
if (mouseEvent.getEventType() == MouseEvent.MOUSE_PRESSED) {
rectinitX.set(mouseEvent.getX());
rectinitY.set(mouseEvent.getY());
}
else if (mouseEvent.getEventType() == MouseEvent.MOUSE_DRAGGED || mouseEvent.getEventType() == MouseEvent.MOUSE_MOVED) {
LineChart<Number, Number> lineChart = (LineChart<Number, Number>) pane.getCenter();
NumberAxis yAxis = (NumberAxis) lineChart.getYAxis();
NumberAxis xAxis = (NumberAxis) lineChart.getXAxis();
double Tgap = xAxis.getWidth()/(xAxis.getUpperBound() - xAxis.getLowerBound());
double newXlower=xAxis.getLowerBound(), newXupper=xAxis.getUpperBound();
double newYlower=yAxis.getLowerBound(), newYupper=yAxis.getUpperBound();
//double xAxisShift = getSceneShift(xAxis);
//double yAxisShift = getSceneShift(yAxis);
//double yAxisStep=yAxis.getHeight()/(yAxis.getUpperBound()-yAxis.getLowerBound());
double Delta=0.3;
if(mouseEvent.getEventType() == MouseEvent.MOUSE_DRAGGED){
if(rectinitX.get() < mouseEvent.getX()){
newXlower=xAxis.getLowerBound()-Delta;
newXupper=xAxis.getUpperBound()-Delta;
}
else if(rectinitX.get() > mouseEvent.getX()){
newXlower=xAxis.getLowerBound()+Delta;
newXupper=xAxis.getUpperBound()+Delta;
}
xAxis.setLowerBound( newXlower );
xAxis.setUpperBound( newXupper );
//========== Y-Axis Moving ============================
if(rectinitY.get() < mouseEvent.getY()){
newYlower=yAxis.getLowerBound()+Delta/1000;
newYupper=yAxis.getUpperBound()+Delta/1000;
}
else if(rectinitY.get() > mouseEvent.getY()){
newYlower=yAxis.getLowerBound()-Delta/1000;
newYupper=yAxis.getUpperBound()-Delta/1000;
}
yAxis.setLowerBound(newYlower);
yAxis.setUpperBound(newYupper);
}
rectinitX.set(mouseEvent.getX());
rectinitY.set(mouseEvent.getY());
MoveTo moveTo = new MoveTo();
moveTo.setX(80);
moveTo.setY(80);
LineTo lineTo1 = new LineTo();
lineTo1.setX(80);
lineTo1.setY(80);
LineTo lineTo2 = new LineTo();
lineTo2.setX(200);
lineTo2.setY(200);
path.getElements().add(moveTo);
path.getElements().add(lineTo1);
path.getElements().add(lineTo2);
path.setStrokeWidth(3);
path.setStroke(Color.BLACK);
pane.getChildren().add(path);
}
}
};
//private static double getSceneShift(Node node) {
// double shift = 0;
// do {
// shift += node.getLayoutX();
// node = node.getParent();
// } while (node != null);
// return shift;
//}
public static void main(String[] args) {
launch(args);
}
}