001 /* 002 * Licensed to the Apache Software Foundation (ASF) under one or more 003 * contributor license agreements. See the NOTICE file distributed with 004 * this work for additional information regarding copyright ownership. 005 * The ASF licenses this file to You under the Apache License, Version 2.0 006 * (the "License"); you may not use this file except in compliance with 007 * the License. You may obtain a copy of the License at 008 * 009 * http://www.apache.org/licenses/LICENSE-2.0 010 * 011 * Unless required by applicable law or agreed to in writing, software 012 * distributed under the License is distributed on an "AS IS" BASIS, 013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 014 * See the License for the specific language governing permissions and 015 * limitations under the License. 016 */ 017 package org.apache.commons.configuration; 018 019 import java.io.BufferedReader; 020 import java.io.File; 021 import java.io.IOException; 022 import java.io.PrintWriter; 023 import java.io.Reader; 024 import java.io.Writer; 025 import java.net.URL; 026 import java.util.Collection; 027 import java.util.Iterator; 028 import java.util.List; 029 import java.util.Set; 030 031 import org.apache.commons.collections.set.ListOrderedSet; 032 import org.apache.commons.configuration.tree.ConfigurationNode; 033 import org.apache.commons.configuration.tree.ViewNode; 034 import org.apache.commons.lang.StringUtils; 035 036 /** 037 * <p> 038 * A specialized hierarchical configuration implementation for parsing ini 039 * files. 040 * </p> 041 * <p> 042 * An initialization or ini file is a configuration file typically found on 043 * Microsoft's Windows operating system and contains data for Windows based 044 * applications. 045 * </p> 046 * <p> 047 * Although popularized by Windows, ini files can be used on any system or 048 * platform due to the fact that they are merely text files that can easily be 049 * parsed and modified by both humans and computers. 050 * </p> 051 * <p> 052 * A typcial ini file could look something like: 053 * </p> 054 * <code> 055 * [section1]<br> 056 * ; this is a comment!<br> 057 * var1 = foo<br> 058 * var2 = bar<br> 059 * <br> 060 * [section2]<br> 061 * var1 = doo<br> 062 * </code> 063 * <p> 064 * The format of ini files is fairly straight forward and is composed of three 065 * components:<br> 066 * <ul> 067 * <li><b>Sections:</b> Ini files are split into sections, each section starting 068 * with a section declaration. A section declaration starts with a '[' and ends 069 * with a ']'. Sections occur on one line only.</li> 070 * <li><b>Parameters:</b> Items in a section are known as parameters. Parameters 071 * have a typical <code>key = value</code> format.</li> 072 * <li><b>Comments:</b> Lines starting with a ';' are assumed to be comments.</li> 073 * </ul> 074 * </p> 075 * <p> 076 * There are various implementations of the ini file format by various vendors 077 * which has caused a number of differences to appear. As far as possible this 078 * configuration tries to be lenient and support most of the differences. 079 * </p> 080 * <p> 081 * Some of the differences supported are as follows: 082 * <ul> 083 * <li><b>Comments:</b> The '#' character is also accepted as a comment 084 * signifier.</li> 085 * <li><b>Key value separtor:</b> The ':' character is also accepted in place of 086 * '=' to separate keys and values in parameters, for example 087 * <code>var1 : foo</code>.</li> 088 * <li><b>Duplicate sections:</b> Typically duplicate sections are not allowed, 089 * this configuration does however support this feature. In the event of a duplicate 090 * section, the two section's values are merged so that there is only a single 091 * section. <strong>Note</strong>: This also affects the internal data of the 092 * configuration. If it is saved, only a single section is written!</li> 093 * <li><b>Duplicate parameters:</b> Typically duplicate parameters are only 094 * allowed if they are in two different sections, thus they are local to 095 * sections; this configuration simply merges duplicates; if a section has a 096 * duplicate parameter the values are then added to the key as a list.</li> 097 * </ul> 098 * </p> 099 * <p> 100 * Global parameters are also allowed; any parameters declared before a section 101 * is declared are added to a global section. It is important to note that this 102 * global section does not have a name. 103 * </p> 104 * <p> 105 * In all instances, a parameter's key is prepended with its section name and a 106 * '.' (period). Thus a parameter named "var1" in "section1" will have the key 107 * <code>section1.var1</code> in this configuration. (This is the default 108 * behavior. Because this is a hierarchical configuration you can change this by 109 * setting a different {@link org.apache.commons.configuration.tree.ExpressionEngine}.) 110 * </p> 111 * <p> 112 * <h3>Implementation Details:</h3> Consider the following ini file:<br> 113 * <code> 114 * default = ok<br> 115 * <br> 116 * [section1]<br> 117 * var1 = foo<br> 118 * var2 = doodle<br> 119 * <br> 120 * [section2]<br> 121 * ; a comment<br> 122 * var1 = baz<br> 123 * var2 = shoodle<br> 124 * bad =<br> 125 * = worse<br> 126 * <br> 127 * [section3]<br> 128 * # another comment<br> 129 * var1 : foo<br> 130 * var2 : bar<br> 131 * var5 : test1<br> 132 * <br> 133 * [section3]<br> 134 * var3 = foo<br> 135 * var4 = bar<br> 136 * var5 = test2<br> 137 * <br> 138 * [sectionSeparators]<br> 139 * passwd : abc=def<br> 140 * a:b = "value" 141 * </code> 142 * </p> 143 * <p> 144 * This ini file will be parsed without error. Note: 145 * <ul> 146 * <li>The parameter named "default" is added to the global section, it's value 147 * is accessed simply using <code>getProperty("default")</code>.</li> 148 * <li>Section 1's parameters can be accessed using 149 * <code>getProperty("section1.var1")</code>.</li> 150 * <li>The parameter named "bad" simply adds the parameter with an empty value.</li> 151 * <li>The empty key with value "= worse" is added using a key consisting of a 152 * single space character. This key is still added to section 2 and the value 153 * can be accessed using <code>getProperty("section2. ")</code>, notice the 154 * period '.' and the space following the section name.</li> 155 * <li>Section three uses both '=' and ':' to separate keys and values.</li> 156 * <li>Section 3 has a duplicate key named "var5". The value for this key is 157 * [test1, test2], and is represented as a List.</li> 158 * <li>The section called <em>sectionSeparators</em> demonstrates how the 159 * configuration deals with multiple occurrences of separator characters. Per 160 * default the first separator character in a line is detected and used to 161 * split the key from the value. Therefore the first property definition in this 162 * section has the key <code>passwd</code> and the value <code>abc=def</code>. 163 * This default behavior can be changed by using quotes. If there is a separator 164 * character before the first quote character (ignoring whitespace), this 165 * character is used as separator. Thus the second property definition in the 166 * section has the key <code>a:b</code> and the value <code>value</code>.</li> 167 * </ul> 168 * </p> 169 * <p> 170 * Internally, this configuration maps the content of the represented ini file 171 * to its node structure in the following way: 172 * <ul> 173 * <li>Sections are represented by direct child nodes of the root node.</li> 174 * <li>For the content of a section, corresponding nodes are created as children 175 * of the section node.</li> 176 * </ul> 177 * This explains how the keys for the properties can be constructed. You can 178 * also use other methods of {@link HierarchicalConfiguration} for querying or 179 * manipulating the hierarchy of configuration nodes, for instance the 180 * <code>configurationAt()</code> method for obtaining the data of a specific 181 * section. However, be careful that the storage scheme described above is not 182 * violated (e.g. by adding multiple levels of nodes or inserting duplicate 183 * section nodes). Otherwise, the special methods for ini configurations may not 184 * work correctly! 185 * </p> 186 * <p> 187 * The set of sections in this configuration can be retrieved using the 188 * <code>getSections()</code> method. For obtaining a 189 * <code>SubnodeConfiguration</code> with the content of a specific section the 190 * <code>getSection()</code> method can be used. 191 * </p> 192 * <p> 193 * <em>Note:</em> Configuration objects of this type can be read concurrently by 194 * multiple threads. However if one of these threads modifies the object, 195 * synchronization has to be performed manually. 196 * </p> 197 * 198 * @author <a 199 * href="http://commons.apache.org/configuration/team-list.html">Commons 200 * Configuration team</a> 201 * @version $Id: HierarchicalINIConfiguration.java 1158123 2011-08-16 06:22:16Z oheger $ 202 * @since 1.6 203 */ 204 public class HierarchicalINIConfiguration extends 205 AbstractHierarchicalFileConfiguration 206 { 207 /** 208 * The characters that signal the start of a comment line. 209 */ 210 protected static final String COMMENT_CHARS = "#;"; 211 212 /** 213 * The characters used to separate keys from values. 214 */ 215 protected static final String SEPARATOR_CHARS = "=:"; 216 217 /** 218 * The serial version UID. 219 */ 220 private static final long serialVersionUID = 2548006161386850670L; 221 222 /** 223 * Constant for the line separator. 224 */ 225 private static final String LINE_SEPARATOR = System.getProperty("line.separator"); 226 227 /** 228 * The characters used for quoting values. 229 */ 230 private static final String QUOTE_CHARACTERS = "\"'"; 231 232 /** 233 * The line continuation character. 234 */ 235 private static final String LINE_CONT = "\\"; 236 237 /** 238 * Create a new empty INI Configuration. 239 */ 240 public HierarchicalINIConfiguration() 241 { 242 super(); 243 } 244 245 /** 246 * Create and load the ini configuration from the given file. 247 * 248 * @param filename The name pr path of the ini file to load. 249 * @throws ConfigurationException If an error occurs while loading the file 250 */ 251 public HierarchicalINIConfiguration(String filename) 252 throws ConfigurationException 253 { 254 super(filename); 255 } 256 257 /** 258 * Create and load the ini configuration from the given file. 259 * 260 * @param file The ini file to load. 261 * @throws ConfigurationException If an error occurs while loading the file 262 */ 263 public HierarchicalINIConfiguration(File file) 264 throws ConfigurationException 265 { 266 super(file); 267 } 268 269 /** 270 * Create and load the ini configuration from the given url. 271 * 272 * @param url The url of the ini file to load. 273 * @throws ConfigurationException If an error occurs while loading the file 274 */ 275 public HierarchicalINIConfiguration(URL url) throws ConfigurationException 276 { 277 super(url); 278 } 279 280 /** 281 * Save the configuration to the specified writer. 282 * 283 * @param writer - The writer to save the configuration to. 284 * @throws ConfigurationException If an error occurs while writing the 285 * configuration 286 */ 287 public void save(Writer writer) throws ConfigurationException 288 { 289 PrintWriter out = new PrintWriter(writer); 290 Iterator it = getSections().iterator(); 291 while (it.hasNext()) 292 { 293 String section = (String) it.next(); 294 Configuration subset; 295 if (section != null) 296 { 297 out.print("["); 298 out.print(section); 299 out.print("]"); 300 out.println(); 301 subset = createSubnodeConfiguration(getSectionNode(section)); 302 } 303 else 304 { 305 subset = getSection(null); 306 } 307 308 Iterator keys = subset.getKeys(); 309 while (keys.hasNext()) 310 { 311 String key = (String) keys.next(); 312 Object value = subset.getProperty(key); 313 if (value instanceof Collection) 314 { 315 Iterator values = ((Collection) value).iterator(); 316 while (values.hasNext()) 317 { 318 value = (Object) values.next(); 319 out.print(key); 320 out.print(" = "); 321 out.print(formatValue(value.toString())); 322 out.println(); 323 } 324 } 325 else 326 { 327 out.print(key); 328 out.print(" = "); 329 out.print(formatValue(value.toString())); 330 out.println(); 331 } 332 } 333 334 out.println(); 335 } 336 337 out.flush(); 338 } 339 340 /** 341 * Load the configuration from the given reader. Note that the 342 * <code>clear</code> method is not called so the configuration read in will 343 * be merged with the current configuration. 344 * 345 * @param reader The reader to read the configuration from. 346 * @throws ConfigurationException If an error occurs while reading the 347 * configuration 348 */ 349 public void load(Reader reader) throws ConfigurationException 350 { 351 try 352 { 353 BufferedReader bufferedReader = new BufferedReader(reader); 354 ConfigurationNode sectionNode = getRootNode(); 355 356 String line = bufferedReader.readLine(); 357 while (line != null) 358 { 359 line = line.trim(); 360 if (!isCommentLine(line)) 361 { 362 if (isSectionLine(line)) 363 { 364 String section = line.substring(1, line.length() - 1); 365 sectionNode = getSectionNode(section); 366 } 367 368 else 369 { 370 String key = ""; 371 String value = ""; 372 int index = findSeparator(line); 373 if (index >= 0) 374 { 375 key = line.substring(0, index); 376 value = parseValue(line.substring(index + 1), bufferedReader); 377 } 378 else 379 { 380 key = line; 381 } 382 key = key.trim(); 383 if (key.length() < 1) 384 { 385 // use space for properties with no key 386 key = " "; 387 } 388 ConfigurationNode node = createNode(key); 389 node.setValue(value); 390 sectionNode.addChild(node); 391 } 392 } 393 394 line = bufferedReader.readLine(); 395 } 396 } 397 catch (IOException e) 398 { 399 throw new ConfigurationException( 400 "Unable to load the configuration", e); 401 } 402 } 403 404 /** 405 * Parse the value to remove the quotes and ignoring the comment. Example: 406 * 407 * <pre> 408 * "value" ; comment -> value 409 * </pre> 410 * 411 * <pre> 412 * 'value' ; comment -> value 413 * </pre> 414 * Note that a comment character is only recognized if there is at least one 415 * whitespace character before it. So it can appear in the property value, 416 * e.g.: 417 * <pre> 418 * C:\\Windows;C:\\Windows\\system32 419 * </pre> 420 * 421 * @param val the value to be parsed 422 * @param reader the reader (needed if multiple lines have to be read) 423 * @throws IOException if an IO error occurs 424 */ 425 private static String parseValue(String val, BufferedReader reader) throws IOException 426 { 427 StringBuffer propertyValue = new StringBuffer(); 428 boolean lineContinues; 429 String value = val.trim(); 430 431 do 432 { 433 boolean quoted = value.startsWith("\"") || value.startsWith("'"); 434 boolean stop = false; 435 boolean escape = false; 436 437 char quote = quoted ? value.charAt(0) : 0; 438 439 int i = quoted ? 1 : 0; 440 441 StringBuffer result = new StringBuffer(); 442 char lastChar = 0; 443 while (i < value.length() && !stop) 444 { 445 char c = value.charAt(i); 446 447 if (quoted) 448 { 449 if ('\\' == c && !escape) 450 { 451 escape = true; 452 } 453 else if (!escape && quote == c) 454 { 455 stop = true; 456 } 457 else if (escape && quote == c) 458 { 459 escape = false; 460 result.append(c); 461 } 462 else 463 { 464 if (escape) 465 { 466 escape = false; 467 result.append('\\'); 468 } 469 470 result.append(c); 471 } 472 } 473 else 474 { 475 if (isCommentChar(c) && Character.isWhitespace(lastChar)) 476 { 477 stop = true; 478 } 479 else 480 { 481 result.append(c); 482 } 483 } 484 485 i++; 486 lastChar = c; 487 } 488 489 String v = result.toString(); 490 if (!quoted) 491 { 492 v = v.trim(); 493 lineContinues = lineContinues(v); 494 if (lineContinues) 495 { 496 // remove trailing "\" 497 v = v.substring(0, v.length() - 1).trim(); 498 } 499 } 500 else 501 { 502 lineContinues = lineContinues(value, i); 503 } 504 propertyValue.append(v); 505 506 if (lineContinues) 507 { 508 propertyValue.append(LINE_SEPARATOR); 509 value = reader.readLine(); 510 } 511 } while (lineContinues && value != null); 512 513 return propertyValue.toString(); 514 } 515 516 /** 517 * Tests whether the specified string contains a line continuation marker. 518 * 519 * @param line the string to check 520 * @return a flag whether this line continues 521 */ 522 private static boolean lineContinues(String line) 523 { 524 String s = line.trim(); 525 return s.equals(LINE_CONT) 526 || (s.length() > 2 && s.endsWith(LINE_CONT) && Character 527 .isWhitespace(s.charAt(s.length() - 2))); 528 } 529 530 /** 531 * Tests whether the specified string contains a line continuation marker 532 * after the specified position. This method parses the string to remove a 533 * comment that might be present. Then it checks whether a line continuation 534 * marker can be found at the end. 535 * 536 * @param line the line to check 537 * @param pos the start position 538 * @return a flag whether this line continues 539 */ 540 private static boolean lineContinues(String line, int pos) 541 { 542 String s; 543 544 if (pos >= line.length()) 545 { 546 s = line; 547 } 548 else 549 { 550 int end = pos; 551 while (end < line.length() && !isCommentChar(line.charAt(end))) 552 { 553 end++; 554 } 555 s = line.substring(pos, end); 556 } 557 558 return lineContinues(s); 559 } 560 561 /** 562 * Tests whether the specified character is a comment character. 563 * 564 * @param c the character 565 * @return a flag whether this character starts a comment 566 */ 567 private static boolean isCommentChar(char c) 568 { 569 return COMMENT_CHARS.indexOf(c) >= 0; 570 } 571 572 /** 573 * Tries to find the index of the separator character in the given string. 574 * This method checks for the presence of separator characters in the given 575 * string. If multiple characters are found, the first one is assumed to be 576 * the correct separator. If there are quoting characters, they are taken 577 * into account, too. 578 * 579 * @param line the line to be checked 580 * @return the index of the separator character or -1 if none is found 581 */ 582 private static int findSeparator(String line) 583 { 584 int index = 585 findSeparatorBeforeQuote(line, 586 findFirstOccurrence(line, QUOTE_CHARACTERS)); 587 if (index < 0) 588 { 589 index = findFirstOccurrence(line, SEPARATOR_CHARS); 590 } 591 return index; 592 } 593 594 /** 595 * Checks for the occurrence of the specified separators in the given line. 596 * The index of the first separator is returned. 597 * 598 * @param line the line to be investigated 599 * @param separators a string with the separator characters to look for 600 * @return the lowest index of a separator character or -1 if no separator 601 * is found 602 */ 603 private static int findFirstOccurrence(String line, String separators) 604 { 605 int index = -1; 606 607 for (int i = 0; i < separators.length(); i++) 608 { 609 char sep = separators.charAt(i); 610 int pos = line.indexOf(sep); 611 if (pos >= 0) 612 { 613 if (index < 0 || pos < index) 614 { 615 index = pos; 616 } 617 } 618 } 619 620 return index; 621 } 622 623 /** 624 * Searches for a separator character directly before a quoting character. 625 * If the first non-whitespace character before a quote character is a 626 * separator, it is considered the "real" separator in this line - even if 627 * there are other separators before. 628 * 629 * @param line the line to be investigated 630 * @param quoteIndex the index of the quote character 631 * @return the index of the separator before the quote or < 0 if there is 632 * none 633 */ 634 private static int findSeparatorBeforeQuote(String line, int quoteIndex) 635 { 636 int index = quoteIndex - 1; 637 while (index >= 0 && Character.isWhitespace(line.charAt(index))) 638 { 639 index--; 640 } 641 642 if (index >= 0 && SEPARATOR_CHARS.indexOf(line.charAt(index)) < 0) 643 { 644 index = -1; 645 } 646 647 return index; 648 } 649 650 /** 651 * Add quotes around the specified value if it contains a comment character. 652 */ 653 private String formatValue(String value) 654 { 655 boolean quoted = false; 656 657 for (int i = 0; i < COMMENT_CHARS.length() && !quoted; i++) 658 { 659 char c = COMMENT_CHARS.charAt(i); 660 if (value.indexOf(c) != -1) 661 { 662 quoted = true; 663 } 664 } 665 666 if (quoted) 667 { 668 return '"' + StringUtils.replace(value, "\"", "\\\"") + '"'; 669 } 670 else 671 { 672 return value; 673 } 674 } 675 676 /** 677 * Determine if the given line is a comment line. 678 * 679 * @param line The line to check. 680 * @return true if the line is empty or starts with one of the comment 681 * characters 682 */ 683 protected boolean isCommentLine(String line) 684 { 685 if (line == null) 686 { 687 return false; 688 } 689 // blank lines are also treated as comment lines 690 return line.length() < 1 || COMMENT_CHARS.indexOf(line.charAt(0)) >= 0; 691 } 692 693 /** 694 * Determine if the given line is a section. 695 * 696 * @param line The line to check. 697 * @return true if the line contains a secion 698 */ 699 protected boolean isSectionLine(String line) 700 { 701 if (line == null) 702 { 703 return false; 704 } 705 return line.startsWith("[") && line.endsWith("]"); 706 } 707 708 /** 709 * Return a set containing the sections in this ini configuration. Note that 710 * changes to this set do not affect the configuration. 711 * 712 * @return a set containing the sections. 713 */ 714 public Set getSections() 715 { 716 Set sections = new ListOrderedSet(); 717 boolean globalSection = false; 718 boolean inSection = false; 719 720 for (Iterator it = getRootNode().getChildren().iterator(); it.hasNext();) 721 { 722 ConfigurationNode node = (ConfigurationNode) it.next(); 723 if (isSectionNode(node)) 724 { 725 inSection = true; 726 sections.add(node.getName()); 727 } 728 else 729 { 730 if (!inSection && !globalSection) 731 { 732 globalSection = true; 733 sections.add(null); 734 } 735 } 736 } 737 738 return sections; 739 } 740 741 /** 742 * Returns a configuration with the content of the specified section. This 743 * provides an easy way of working with a single section only. The way this 744 * configuration is structured internally, this method is very similar to 745 * calling {@link HierarchicalConfiguration#configurationAt(String)} with 746 * the name of the section in question. There are the following differences 747 * however: 748 * <ul> 749 * <li>This method never throws an exception. If the section does not exist, 750 * it is created now. The configuration returned in this case is empty.</li> 751 * <li>If section is contained multiple times in the configuration, the 752 * configuration returned by this method is initialized with the first 753 * occurrence of the section. (This can only happen if 754 * <code>addProperty()</code> has been used in a way that does not conform 755 * to the storage scheme used by <code>HierarchicalINIConfiguration</code>. 756 * If used correctly, there will not be duplicate sections.)</li> 757 * <li>There is special support for the global section: Passing in 758 * <b>null</b> as section name returns a configuration with the content of 759 * the global section (which may also be empty).</li> 760 * </ul> 761 * 762 * @param name the name of the section in question; <b>null</b> represents 763 * the global section 764 * @return a configuration containing only the properties of the specified 765 * section 766 */ 767 public SubnodeConfiguration getSection(String name) 768 { 769 if (name == null) 770 { 771 return getGlobalSection(); 772 } 773 774 else 775 { 776 try 777 { 778 return configurationAt(name); 779 } 780 catch (IllegalArgumentException iex) 781 { 782 // the passed in key does not map to exactly one node 783 // obtain the node for the section, create it on demand 784 return new SubnodeConfiguration(this, getSectionNode(name)); 785 } 786 } 787 } 788 789 /** 790 * Obtains the node representing the specified section. This method is 791 * called while the configuration is loaded. If a node for this section 792 * already exists, it is returned. Otherwise a new node is created. 793 * 794 * @param sectionName the name of the section 795 * @return the node for this section 796 */ 797 private ConfigurationNode getSectionNode(String sectionName) 798 { 799 List nodes = getRootNode().getChildren(sectionName); 800 if (!nodes.isEmpty()) 801 { 802 return (ConfigurationNode) nodes.get(0); 803 } 804 805 ConfigurationNode node = createNode(sectionName); 806 markSectionNode(node); 807 getRootNode().addChild(node); 808 return node; 809 } 810 811 /** 812 * Creates a sub configuration for the global section of the represented INI 813 * configuration. 814 * 815 * @return the sub configuration for the global section 816 */ 817 private SubnodeConfiguration getGlobalSection() 818 { 819 ViewNode parent = new ViewNode(); 820 821 for (Iterator it = getRootNode().getChildren().iterator(); it.hasNext();) 822 { 823 ConfigurationNode node = (ConfigurationNode) it.next(); 824 if (!isSectionNode(node)) 825 { 826 synchronized (node) 827 { 828 parent.addChild(node); 829 } 830 } 831 } 832 833 return createSubnodeConfiguration(parent); 834 } 835 836 /** 837 * Marks a configuration node as a section node. This means that this node 838 * represents a section header. This implementation uses the node's 839 * reference property to store a flag. 840 * 841 * @param node the node to be marked 842 */ 843 private static void markSectionNode(ConfigurationNode node) 844 { 845 node.setReference(Boolean.TRUE); 846 } 847 848 /** 849 * Checks whether the specified configuration node represents a section. 850 * 851 * @param node the node in question 852 * @return a flag whether this node represents a section 853 */ 854 private static boolean isSectionNode(ConfigurationNode node) 855 { 856 return node.getReference() != null || node.getChildrenCount() > 0; 857 } 858 }