diff -r 7e08730da258 -r 4a1864c3e867 java/sql-dk/src/info/globalcode/sql/dk/Functions.java --- a/java/sql-dk/src/info/globalcode/sql/dk/Functions.java Mon Mar 04 17:06:42 2019 +0100 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,254 +0,0 @@ -/** - * SQL-DK - * Copyright © 2013 František Kučera (frantovo.cz) - * - * This program is free software: you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation, either version 3 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program. If not, see . - */ -package info.globalcode.sql.dk; - -import info.globalcode.sql.dk.configuration.NameIdentified; -import info.globalcode.sql.dk.configuration.PropertyDeclaration; -import info.globalcode.sql.dk.configuration.PropertyDeclarations; -import info.globalcode.sql.dk.formatting.Formatter; -import java.io.BufferedReader; -import java.io.File; -import java.io.IOException; -import java.io.InputStream; -import java.io.InputStreamReader; -import java.io.PrintWriter; -import java.util.ArrayList; -import java.util.Arrays; -import java.util.Collection; -import java.util.Collections; -import java.util.List; -import java.util.Map; -import java.util.regex.Matcher; -import java.util.regex.Pattern; - -/** - * - * @author Ing. František Kučera (frantovo.cz) - */ -public class Functions { - - private static final String NBSP = " "; - private static final Pattern WHITESPACE_TO_REPLACE = Pattern.compile("\\n|\\r|\\t|" + NBSP); - - private Functions() { - } - - public static boolean equalz(Object a, Object b) { - return a == null ? b == null : a.equals(b); - } - - /** - * - * @param text String to be examinated - * @param trim whether text should be trimmed before examination - * @return whether text is not empty and one or more characters long (after prospective trim) - */ - public static boolean isEmpty(String text, boolean trim) { - if (text == null) { - return true; - } else { - if (trim) { - text = text.trim(); - } - return text.isEmpty(); - } - } - - /** - * @see #isEmpty(java.lang.String, boolean) - */ - public static boolean isNotEmpty(String text, boolean trim) { - return !isEmpty(text, trim); - } - - public boolean isEmpty(Collection c) { - return c == null || c.isEmpty(); - } - - public boolean isNotEmpty(Collection c) { - return !isEmpty(c); - } - - public boolean isEmpty(Map m) { - return m == null || m.isEmpty(); - } - - public boolean isNotEmpty(Map m) { - return !isEmpty(m); - } - - /** - * @return empty collection if given one is null | or the original one - */ - public static Collection notNull(Collection c) { - if (c == null) { - return Collections.emptyList(); - } else { - return c; - } - } - - public static T findByName(Collection collection, String name) { - for (T element : notNull(collection)) { - if (element != null && equalz(element.getName(), name)) { - return element; - } - } - - return null; - } - - /** - * Copy file from Java resources to file system. - */ - public static void installResource(String resourceName, File target) throws IOException { - try (BufferedReader reader = new BufferedReader(new InputStreamReader(Functions.class.getClassLoader().getResourceAsStream(resourceName)))) { - try (PrintWriter writer = new PrintWriter(target)) { - while (true) { - String line = reader.readLine(); - if (line == null) { - break; - } else { - writer.println(line); - } - } - } - } - } - - public static String rpad(String s, int n) { - if (n > 0) { - return String.format("%1$-" + n + "s", s); - } else { - return s; - } - } - - public static String lpad(String s, int n) { - if (n > 0) { - return String.format("%1$" + n + "s", s); - } else { - return s; - } - } - - public static String repeat(char ch, int count) { - char[] array = new char[count]; - Arrays.fill(array, ch); - return new String(array); - } - private final static char[] HEX_ALPHABET = "0123456789abcdef".toCharArray(); - - public static String toHex(byte[] bytes) { - char[] hexChars = new char[bytes.length * 2]; - for (int j = 0; j < bytes.length; j++) { - int v = bytes[j] & 0xFF; - hexChars[j * 2] = HEX_ALPHABET[v >>> 4]; - hexChars[j * 2 + 1] = HEX_ALPHABET[v & 0x0F]; - } - return new String(hexChars); - } - - public static String readString(InputStream in) throws IOException { - try (BufferedReader br = new BufferedReader(new InputStreamReader(in))) { - StringBuilder result = new StringBuilder(); - for (String line = br.readLine(); line != null; line = br.readLine()) { - result.append(line); - result.append('\n'); - } - return result.toString(); - } - } - - /** - * @param

type of the last parent - * @param type of the examined class - * @param type examined class - * @param lastParent the last parent type to stop at - * @return list of types starting with type and ending with lastParent - */ - public static List> getClassHierarchy(Class type, Class

lastParent) { - List> hierarchy = new ArrayList<>(); - - for (Class current = type; current != null && lastParent.isAssignableFrom(current); current = current.getSuperclass()) { - hierarchy.add(current); - } - - return hierarchy; - } - - public static PropertyDeclaration[] getPropertyDeclarations(Class formatterClass) { - PropertyDeclarations properties = formatterClass.getAnnotation(PropertyDeclarations.class); - - if (properties == null) { - PropertyDeclaration p = formatterClass.getAnnotation(PropertyDeclaration.class); - return p == null ? new PropertyDeclaration[]{} : new PropertyDeclaration[]{p}; - } else { - return properties.value(); - } - } - - /** - * TODO: support background or styles and move to ColorfulPrintWriter - * - * @param out - * @param valueString - * @param basicColor - * @param escapeColor - */ - public static void printValueWithWhitespaceReplaced(ColorfulPrintWriter out, String valueString, ColorfulPrintWriter.TerminalColor basicColor, ColorfulPrintWriter.TerminalColor escapeColor) { - - Matcher m = WHITESPACE_TO_REPLACE.matcher(valueString); - - int start = 0; - - while (m.find(start)) { - - printColorOrNot(out, basicColor, valueString.substring(start, m.start())); - - switch (m.group()) { - case "\n": - out.print(escapeColor, "↲"); - break; - case "\r": - out.print(escapeColor, "⏎"); - break; - case "\t": - out.print(escapeColor, "↹"); - break; - case NBSP: - out.print(escapeColor, "⎵"); - break; - default: - throw new IllegalStateException("Unexpected whitespace token: „" + m.group() + "“"); - } - - start = m.end(); - } - - printColorOrNot(out, basicColor, valueString.substring(start, valueString.length())); - } - - private static void printColorOrNot(ColorfulPrintWriter out, ColorfulPrintWriter.TerminalColor color, String text) { - if (color == null) { - out.print(text); - } else { - out.print(color, text); - } - } -}