List of usage examples for java.lang StringBuilder reverse
@Override
public StringBuilder reverse()
From source file:org.apache.hadoop.hbase.quotas.TestRegionSizeUse.java
/** * Writes at least {@code sizeInBytes} bytes of data to HBase and returns the TableName used. * * @param sizeInBytes The amount of data to write in bytes. * @return The table the data was written to *//* w w w .j a va 2 s .co m*/ private TableName writeData(long sizeInBytes) throws IOException { final Connection conn = TEST_UTIL.getConnection(); final Admin admin = TEST_UTIL.getAdmin(); final TableName tn = TableName.valueOf(testName.getMethodName()); // Delete the old table if (admin.tableExists(tn)) { admin.disableTable(tn); admin.deleteTable(tn); } // Create the table HTableDescriptor tableDesc = new HTableDescriptor(tn); tableDesc.addFamily(new HColumnDescriptor(F1)); admin.createTable(tableDesc, Bytes.toBytes("1"), Bytes.toBytes("9"), NUM_SPLITS); final Table table = conn.getTable(tn); try { List<Put> updates = new ArrayList<>(); long bytesToWrite = sizeInBytes; long rowKeyId = 0L; final StringBuilder sb = new StringBuilder(); final Random r = new Random(); while (bytesToWrite > 0L) { sb.setLength(0); sb.append(Long.toString(rowKeyId)); // Use the reverse counter as the rowKey to get even spread across all regions Put p = new Put(Bytes.toBytes(sb.reverse().toString())); byte[] value = new byte[SIZE_PER_VALUE]; r.nextBytes(value); p.addColumn(Bytes.toBytes(F1), Bytes.toBytes("q1"), value); updates.add(p); // Batch 50K worth of updates if (updates.size() > 50) { table.put(updates); updates.clear(); } // Just count the value size, ignore the size of rowkey + column bytesToWrite -= SIZE_PER_VALUE; rowKeyId++; } // Write the final batch if (!updates.isEmpty()) { table.put(updates); } return tn; } finally { table.close(); } }
From source file:net.mindengine.galen.reports.HtmlSuiteReportingListener.java
private String extensionFrom(String filePath) { StringBuilder extension = new StringBuilder(); for (int i = filePath.length() - 1; i >= 0; i--) { char ch = filePath.charAt(i); if (ch == '.') { break; } else/*from ww w .ja va 2 s .co m*/ extension.append(ch); } return extension.reverse().toString(); }
From source file:jfs.sync.encryption.AbstractEncryptedStorageAccess.java
protected String getMetaDataFileName(String relativePath) { StringBuilder result = new StringBuilder(getLastPathElement(JFSConfig.getInstance().getEncryptionPassPhrase(), relativePath)); result.reverse(); if (result.length()>8) { result.delete(0, result.length()-8); } // if// ww w. jav a 2 s . co m result.append(".mt"); return result.toString(); }
From source file:org.eclipse.skalli.model.Project.java
/** * Returns the short name if it exists or constructs one from the project name otherwise. * * <p>// ww w. j a va 2 s . co m * The constructed name is guaranteed to contain only alpha-numeric letters and to be 2 to 10 characters long. * It will consist of the first letters of each word, if the project name includes multiple words. * Otherwise the project name shortened to max. 10 characters will be returned. * </p> * * @return */ public String getOrConstructShortName() { if (!StringUtils.isBlank(shortName)) { return shortName; } else { if (name.contains(" ")) { //$NON-NLS-1$ // use first characters of each word, if they are alpha-numeric and the resulting length exceeds 1 char. StringBuilder retAbbrev = new StringBuilder(); for (String n : name.split(" ")) { //$NON-NLS-1$ if (n.length() > 0) { char ch = n.charAt(0); if (CharUtils.isAsciiAlphanumeric(ch) && retAbbrev.length() < 10) { retAbbrev.append(ch); } } } // if the first-char abbreviation is long enough, use it if (retAbbrev.length() > 1) { return retAbbrev.toString(); } } // Otherwise use the first 10 alpha-numeric characters of the project name, if they exceed 1 char. StringBuilder retShortenedName = new StringBuilder(); for (int i = 0; i < name.length() && retShortenedName.length() < 10; i++) { char ch = name.charAt(i); if (CharUtils.isAsciiAlphanumeric(ch)) { retShortenedName.append(ch); } } if (retShortenedName.length() > 1) { return retShortenedName.toString(); } // If still no valid short name was found, then return the last 10 alpha-numeric characters of the project id StringBuilder retProjectId = new StringBuilder(); for (int i = projectId.length() - 1; i >= 0 && retProjectId.length() < 10; i--) { char ch = projectId.charAt(i); if (CharUtils.isAsciiAlphanumeric(ch)) { retProjectId.append(ch); } } return retProjectId.reverse().toString(); } }
From source file:z.tool.web.servlet.AbstractServlet.java
private String getRealClassName(int max) { char[] chars = this.getClass().getName().toCharArray(); int found = 0; StringBuilder buff = new StringBuilder(); for (int i = chars.length - 1; i > -1; i--) { char c = chars[i]; if ('.' == c) { found++;//from w w w. j a va2 s.c o m } if (found >= max) { break; } buff.append(c); } return buff.reverse().toString(); }
From source file:etymology.config.Configuration.java
public void setWordsToMonitor(List<String> wordsToMonitor) { this.wordsToMonitor = wordsToMonitor; if (wordsToMonitor == null) { return;//from w w w . j a v a 2 s . co m } System.out.println("Flipped around: " + areWordsFlippedAround()); if (areWordsFlippedAround()) { this.wordsToMonitor = new ArrayList(); for (int i = 0; i < wordsToMonitor.size(); i++) { StringBuilder sb = new StringBuilder(); sb.append(wordsToMonitor.get(i)); sb.reverse(); this.wordsToMonitor.add(sb.toString()); } } }
From source file:etymology.config.Configuration.java
public void setWordsFlippedAround(boolean flip) { this.flipWordsAround = flip; if (wordsToMonitor != null && flip) { List currentWordsToMonitor = wordsToMonitor; this.wordsToMonitor = new ArrayList(); for (int i = 0; i < currentWordsToMonitor.size(); i++) { StringBuilder sb = new StringBuilder(); sb.append(currentWordsToMonitor.get(i)); sb.reverse(); this.wordsToMonitor.add(sb.toString()); }//from ww w.jav a 2s . c om } }
From source file:org.apache.hadoop.hbase.quotas.SpaceQuotaHelperForTests.java
void writeData(TableName tn, long sizeInBytes, byte[] qual) throws IOException { final Connection conn = testUtil.getConnection(); final Table table = conn.getTable(tn); try {/*from w w w. j av a 2 s. c o m*/ List<Put> updates = new ArrayList<>(); long bytesToWrite = sizeInBytes; long rowKeyId = 0L; final StringBuilder sb = new StringBuilder(); final Random r = new Random(); while (bytesToWrite > 0L) { sb.setLength(0); sb.append(Long.toString(rowKeyId)); // Use the reverse counter as the rowKey to get even spread across all regions Put p = new Put(Bytes.toBytes(sb.reverse().toString())); byte[] value = new byte[SIZE_PER_VALUE]; r.nextBytes(value); p.addColumn(Bytes.toBytes(F1), qual, value); updates.add(p); // Batch ~13KB worth of updates if (updates.size() > 50) { table.put(updates); updates.clear(); } // Just count the value size, ignore the size of rowkey + column bytesToWrite -= SIZE_PER_VALUE; rowKeyId++; } // Write the final batch if (!updates.isEmpty()) { table.put(updates); } LOG.debug("Data was written to HBase"); // Push the data to disk. testUtil.getAdmin().flush(tn); LOG.debug("Data flushed to disk"); } finally { table.close(); } }
From source file:org.patientview.monitoring.ImportMonitor.java
/** * Returns the last N lines of a file. Assumes lines are terminated by |n ascii character *//*from ww w. j av a2 s . com*/ private static List<String> getLastNLinesOfFile(int numberOfLinesToReturn) { List<String> lastNLines = new ArrayList<String>(); java.io.RandomAccessFile fileHandler = null; try { File file = getTodaysCountFile(); fileHandler = new java.io.RandomAccessFile(file, "r"); long totalNumberOfCharactersInFile = file.length() - 1; StringBuilder sb = new StringBuilder(); int numberOfLinesRead = 0; /** * loop through characters in file, construct lines out of characters, add lines to a list */ for (long currentCharacter = totalNumberOfCharactersInFile; currentCharacter != -1; currentCharacter--) { fileHandler.seek(currentCharacter); int readByte = fileHandler.readByte(); if (readByte == LINE_FEED || readByte == CARRIAGE_RETURN) { if (numberOfLinesRead == numberOfLinesToReturn) { break; } numberOfLinesRead++; /** * add line to line list */ String currentLine = sb.reverse().toString(); sb = new StringBuilder(); if (StringUtils.isNotBlank(currentLine)) { lastNLines.add(currentLine); } else { LOGGER.error("Read line does not contain any data"); continue; } } else { sb.append((char) readByte); } } /** * add the last line */ lastNLines.add(sb.reverse().toString()); } catch (Exception e) { LOGGER.error("Can not find today's file", e); } finally { if (fileHandler != null) { try { fileHandler.close(); } catch (IOException e) { fileHandler = null; } } } return lastNLines; }
From source file:org.squidy.designer.zoom.impl.SourceCodeShape.java
private JEditorPane createCodePane(URL sourceCodeURL) { codePane = new JEditorPane() { @Override/* w w w . j a va 2s.c o m*/ protected void processComponentKeyEvent(KeyEvent e) { if (e.getKeyCode() == KeyEvent.VK_SPACE && e.isControlDown()) { System.out.println("Code completion"); int caretPosition = codePane.getCaretPosition(); String code = codePane.getText(); switch (code.charAt(caretPosition - 1)) { case '.': int pseudoCaret = caretPosition - 1; StringBuilder word = new StringBuilder(); for (char c = code.charAt(--pseudoCaret); !isEndOfWord(c); c = code.charAt(--pseudoCaret)) { word.append(c); } word = word.reverse(); System.out.println("WORD: " + word); // Class<?> type = // ReflectionUtil.loadClass(word.toString()); // // System.out.println("TYPE: " + type); JPopupMenu menu = new JPopupMenu("sdaf"); Point p = codePane.getCaret().getMagicCaretPosition(); System.out.println("CARET POS: " + p); // Point p = codePane.get // menu.setPreferredSize(new Dimension(200, 200)); menu.setLocation(30, 30); menu.add("test"); codePane.add(menu); // System.out.println(p); // codePane.get menu.show(codePane, p.x, p.y); break; } } super.processComponentKeyEvent(e); } /** * @param c * @return */ private boolean isEndOfWord(char c) { return c == ' ' || c == '\n' || c == '\r' || c == '\t'; } }; EditorKit editorKit = new StyledEditorKit() { /** * */ private static final long serialVersionUID = 7024886168909204806L; public Document createDefaultDocument() { return new SyntaxDocument(); } }; codePane.setEditorKitForContentType("text/java", editorKit); codePane.setContentType("text/java"); try { FileInputStream fis = new FileInputStream(sourceCodeURL.getPath()); codePane.read(fis, null); originSourceCode = codePane.getText(); computeHeightOfCodePane(); codePane.setAutoscrolls(true); } catch (Exception e) { codePane.setText("File not found!"); } codePane.requestFocus(); codePane.setBorder(BorderFactory.createLineBorder(Color.BLACK)); codePane.addKeyListener(new KeyAdapter() { /* * (non-Javadoc) * * @see * java.awt.event.KeyAdapter#keyPressed(java.awt.event.KeyEvent) */ @Override public void keyPressed(KeyEvent e) { super.keyPressed(e); switch (e.getKeyCode()) { case KeyEvent.VK_ENTER: case KeyEvent.VK_DELETE: case KeyEvent.VK_BACK_SPACE: case KeyEvent.VK_SPACE: computeHeightOfCodePane(); break; } markDirty(); } }); // final JPopupMenu menu = new JPopupMenu(); // // JMenuItem i = new JMenuItem("Option 1"); // JMenuItem i2 = new JMenuItem("Option 2"); // menu.add(i); // menu.add(i2); // edit.add(menu); // getComponent().addKeyListener(new KeyAdapter() { // // public void keyTyped(KeyEvent e) { // if(e.getModifiers() == 2 && e.getKeyChar() == ' ') { // Point popupLoc = edit.getCaret().getMagicCaretPosition(); // System.out.println(popupLoc); // menu.setLocation(new // Point((int)popupLoc.getX(),(int)popupLoc.getY())); // menu.setVisible(true); // } // // } // }); return codePane; }