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HSQLDB example source code file (CodeSwitcher.java)
The HSQLDB CodeSwitcher.java source code/* * For work developed by the HSQL Development Group: * * Copyright (c) 2001-2010, The HSQL Development Group * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: * * Redistributions of source code must retain the above copyright notice, this * list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above copyright notice, * this list of conditions and the following disclaimer in the documentation * and/or other materials provided with the distribution. * * Neither the name of the HSQL Development Group nor the names of its * contributors may be used to endorse or promote products derived from this * software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL HSQL DEVELOPMENT GROUP, HSQLDB.ORG, * OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * * * * For work originally developed by the Hypersonic SQL Group: * * Copyright (c) 1995-2000, The Hypersonic SQL Group. * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: * * Redistributions of source code must retain the above copyright notice, this * list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above copyright notice, * this list of conditions and the following disclaimer in the documentation * and/or other materials provided with the distribution. * * Neither the name of the Hypersonic SQL Group nor the names of its * contributors may be used to endorse or promote products derived from this * software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE HYPERSONIC SQL GROUP, * OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * * This software consists of voluntary contributions made by many individuals * on behalf of the Hypersonic SQL Group. */ package org.hsqldb.util; import java.io.BufferedReader; import java.io.File; import java.io.FileReader; import java.io.FileWriter; import java.io.IOException; import java.io.LineNumberReader; import java.util.Vector; // fredt@users 20020315 - patch 1.7.0 - minor fixes // changed line separator to System based value // moved the Profile class to org.hsqldb.test package // fredt@users 20021020 - patch 1.7.1 - formatting fix // avoid moving blank lines which would be interpreted as code change by CVS // fredt@users 20021118 - patch 1.7.2 - no-change, no-save fix // if the file contents do not change, do not save a new version of file // fredt@users 20040322 - removed unused profiling code // fredt@users 20080315 - added ifndef switch /** * Modifies the source code to support different JDK or profile settings. <p> * <pre> * Usage: java CodeSwitcher paths|{--pathlist=listfile} [{+|-}label...] [+][-] * If no labels are specified then all used * labels in the source code are shown. * Use +MODE to switch on the things labeld MODE * Use -MODE to switch off the things labeld MODE * Path: Any number of path or files may be * specified. Use . for the current directory * (including sub-directories). * Example: java CodeSwitcher +JAVA2 . * This example switches on code labeled JAVA2 * in all *.java files in the current directory * and all subdirectories. * java CodeSwitcher + . * Adds test code to the code. * java CodeSwitcher - . * Removes test code from the code * </pre> * * @author Thomas Mueller (Hypersonic SQL Group) * @version 1.7.0 * @since Hypersonic SQL */ public class CodeSwitcher { private static final String ls = System.getProperty("line.separator", "\n"); private Vector vList; private Vector vSwitchOn; private Vector vSwitchOff; private Vector vSwitches; private static final int MAX_LINELENGTH = 82; /** * Method declaration * * * @param a */ public static void main(String[] a) { CodeSwitcher s = new CodeSwitcher(); if (a.length == 0) { showUsage(); return; } File listFile = null; File baseDir = null; for (int i = 0; i < a.length; i++) { String p = a[i]; if (p.startsWith("+")) { s.vSwitchOn.addElement(p.substring(1)); } else if (p.startsWith("--basedir=")) { baseDir = new File(p.substring("--basedir=".length())); } else if (p.startsWith("--pathlist=")) { listFile = new File(p.substring("--pathlist=".length())); } else if (p.startsWith("-")) { s.vSwitchOff.addElement(p.substring(1)); } else { s.addDir(p); } } if (baseDir != null) { if (listFile == null) { System.err.println( "--basedir= setting ignored, since only used for list files"); } else { if (!baseDir.isDirectory()) { System.err.println("Skipping listfile since basedir '" + baseDir.getAbsolutePath() + "' is not a directory"); listFile = null; } } } if (listFile != null) { try { BufferedReader br = new BufferedReader(new FileReader(listFile)); String st, p; int hashIndex; File f; while ((st = br.readLine()) != null) { hashIndex = st.indexOf('#'); p = ((hashIndex > -1) ? st.substring(0, hashIndex) : st).trim(); if (p.length() < 1) { continue; } f = (baseDir == null) ? (new File(p)) : (new File(baseDir, p)); if (f.isFile()) { s.addDir(f); } else { System.err.println("Skipping non-file '" + p.trim() + "'"); } } } catch (Exception e) { System.err.println("Failed to read pathlist file '" + listFile.getAbsolutePath() + "'"); } } if (s.size() < 1) { printError("No path specified, or no specified paths qualify"); showUsage(); } s.process(); if (s.vSwitchOff.size() == 0 && s.vSwitchOn.size() == 0) { s.printSwitches(); } } public int size() { return (vList == null) ? 0 : vList.size(); } /** * Method declaration * */ static void showUsage() { System.out.print("Usage: java CodeSwitcher paths|{--pathlist=listfile} " + "[{+|-}label...] [+][-]\n" + "If no labels are specified then all used\n" + "labels in the source code are shown.\n" + "Use +MODE to switch on the things labeld MODE\n" + "Use -MODE to switch off the things labeld MODE\n" + "Path: Any number of path or files may be\n" + "specified. Use . for the current directory\n" + "(including sub-directories).\n" + "Example: java CodeSwitcher +JAVA2 .\n" + "This example switches on code labeled JAVA2\n" + "in all *.java files in the current directory\n" + "and all subdirectories.\n"); } /** * Constructor declaration * */ CodeSwitcher() { vList = new Vector(); vSwitchOn = new Vector(); vSwitchOff = new Vector(); vSwitches = new Vector(); } /** * Method declaration * */ void process() { int len = vList.size(); for (int i = 0; i < len; i++) { System.out.print("."); String file = (String) vList.elementAt(i); if (!processFile(file)) { System.out.println("in file " + file + " !"); } } System.out.println(""); } /** * Method declaration * */ void printSwitches() { System.out.println("Used labels:"); for (int i = 0; i < vSwitches.size(); i++) { System.out.println((String) (vSwitches.elementAt(i))); } } /** * Wrapper * * @param path */ void addDir(String path) { addDir(new File(path)); } void addDir(File f) { if (f.isFile() && f.getName().endsWith(".java")) { vList.addElement(f.getPath()); } else if (f.isDirectory()) { File[] list = f.listFiles(); for (int i = 0; i < list.length; i++) { addDir(list[i]); } } } /** * Method declaration * * * @param name */ boolean processFile(String name) { File f = new File(name); File fnew = new File(name + ".new"); int state = 0; // 0=normal 1=inside_if 2=inside_else boolean switchoff = false; boolean working = false; try { Vector v = getFileLines(f); Vector v1 = new Vector(v.size()); for (int i = 0; i < v.size(); i++) { v1.addElement(v.elementAt(i)); } for (int i = 0; i < v.size(); i++) { String line = (String) v.elementAt(i); if (line == null) { break; } if (working) { if (line.equals("/*") || line.equals("*/")) { v.removeElementAt(i--); continue; } } if (line.startsWith("//#")) { if (line.startsWith("//#ifdef ")) { if (state != 0) { printError("'#ifdef' not allowed inside '#ifdef'"); return false; } state = 1; String s = line.substring(9); if (vSwitchOn.indexOf(s) != -1) { working = true; switchoff = false; } else if (vSwitchOff.indexOf(s) != -1) { working = true; v.insertElementAt("/*", ++i); switchoff = true; } if (vSwitches.indexOf(s) == -1) { vSwitches.addElement(s); } } else if (line.startsWith("//#ifndef ")) { if (state != 0) { printError( "'#ifndef' not allowed inside '#ifdef'"); return false; } state = 1; String s = line.substring(10); if (vSwitchOff.indexOf(s) != -1) { working = true; switchoff = false; } else if (vSwitchOn.indexOf(s) != -1) { working = true; v.insertElementAt("/*", ++i); switchoff = true; } if (vSwitches.indexOf(s) == -1) { vSwitches.addElement(s); } } else if (line.startsWith("//#else")) { if (state != 1) { printError("'#else' without '#ifdef'"); return false; } state = 2; if (!working) {} else if (switchoff) { if (v.elementAt(i - 1).equals("")) { v.insertElementAt("*/", i - 1); i++; } else { v.insertElementAt("*/", i++); } switchoff = false; } else { v.insertElementAt("/*", ++i); switchoff = true; } } else if (line.startsWith("//#endif")) { if (state == 0) { printError("'#endif' without '#ifdef'"); return false; } state = 0; if (working && switchoff) { if (v.elementAt(i - 1).equals("")) { v.insertElementAt("*/", i - 1); i++; } else { v.insertElementAt("*/", i++); } } working = false; } else {} } } if (state != 0) { printError("'#endif' missing"); return false; } boolean filechanged = false; for (int i = 0; i < v.size(); i++) { if (!v1.elementAt(i).equals(v.elementAt(i))) { filechanged = true; break; } } if (!filechanged) { return true; } writeFileLines(v, fnew); File fbak = new File(name + ".bak"); fbak.delete(); f.renameTo(fbak); File fcopy = new File(name); fnew.renameTo(fcopy); fbak.delete(); return true; } catch (Exception e) { printError(e.toString()); return false; } } static Vector getFileLines(File f) throws IOException { LineNumberReader read = new LineNumberReader(new FileReader(f)); Vector v = new Vector(); for (;;) { String line = read.readLine(); if (line == null) { break; } v.addElement(line); } read.close(); return v; } static void writeFileLines(Vector v, File f) throws IOException { FileWriter write = new FileWriter(f); for (int i = 0; i < v.size(); i++) { write.write((String) v.elementAt(i)); write.write(ls); } write.flush(); write.close(); } /** * Method declaration * * * @param error */ static void printError(String error) { System.out.println(""); System.out.println("ERROR: " + error); } } Other HSQLDB examples (source code examples)Here is a short list of links related to this HSQLDB CodeSwitcher.java source code file: |
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