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springside#525 1.增加通配符匹配，对字符串可用通配符匹配，2.文件搜索可用AntPath，通配符，正则表达式匹配 3.Fi…
…lePathUtils增加在windows下，将路径转为windows路径
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145
modules/utils/src/main/java/org/springside/modules/utils/io/FileTreeWalker.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,145 @@ | ||
| package org.springside.modules.utils.io; | ||
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| import java.io.File; | ||
| import java.util.List; | ||
| import java.util.regex.Pattern; | ||
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| import org.springside.modules.utils.text.WildcardMatcher; | ||
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| import com.google.common.base.Predicate; | ||
| import com.google.common.collect.TreeTraverser; | ||
| import com.google.common.io.Files; | ||
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| public class FileTreeWalker { | ||
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| /** | ||
| * 前序递归列出所有文件, 包含文件与目录，及根目录本身. | ||
| * | ||
| * 前序即先列出父目录，在列出子目录. 如要后序遍历, 直接使用Files.fileTreeTraverser() | ||
| */ | ||
| public static List<File> listAll(File rootDir) { | ||
| return Files.fileTreeTraverser().preOrderTraversal(rootDir).toList(); | ||
| } | ||
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| /** | ||
| * 前序递归列出所有文件, 只包含文件. | ||
| */ | ||
| public static List<File> listFile(File rootDir) { | ||
| return Files.fileTreeTraverser().preOrderTraversal(rootDir).filter(Files.isFile()).toList(); | ||
| } | ||
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| /** | ||
| * 前序递归列出所有文件, 列出后缀名匹配的文件. （后缀名不包含.） | ||
| */ | ||
| public static List<File> listFileWithExtension(final File rootDir, final String extension) { | ||
| return Files.fileTreeTraverser().preOrderTraversal(rootDir).filter(new FileExtensionFilter(extension)).toList(); | ||
| } | ||
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| /** | ||
| * 前序递归列出所有文件, 列出文件名匹配通配符的文件 | ||
| * | ||
| * 如 ("/a/b/hello.txt", "he*") 将被返回 | ||
| */ | ||
| public static List<File> listFileWithWildcardFileName(final File rootDir, final String fileNamePattern) { | ||
| return Files.fileTreeTraverser().preOrderTraversal(rootDir).filter(new WildcardFileNameFilter(fileNamePattern)) | ||
| .toList(); | ||
| } | ||
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| /** | ||
| * 前序递归列出所有文件, 列出文件名匹配正则表达式的文件 | ||
| * | ||
| * 如 ("/a/b/hello.txt", "he.*\.text") 将被返回 | ||
| */ | ||
| public static List<File> listFileWithRegexFileName(final File rootDir, final String regexFileNamePattern) { | ||
| return Files.fileTreeTraverser().preOrderTraversal(rootDir) | ||
| .filter(new RegexFileNameFilter(regexFileNamePattern)).toList(); | ||
| } | ||
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| /** | ||
| * 前序递归列出所有文件, 列出符合ant path风格表达式的文件 | ||
| * | ||
| * 如 ("/a/b/hello.txt", "he.*\.text") 将被返回 | ||
| */ | ||
| public static List<File> listFileWithAntPath(final File rootDir, final String antPathPattern) { | ||
| return Files.fileTreeTraverser().preOrderTraversal(rootDir).filter(new AntPathFilter(antPathPattern)).toList(); | ||
| } | ||
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| /** | ||
| * 直接使用Guava的TreeTraverser，获得更大的灵活度, 比如加入各类filter，前序/后序的选择，一边遍历一边操作 | ||
| * | ||
| * <pre> | ||
| * FileUtil.fileTreeTraverser().preOrderTraversal(root).iterator(); | ||
| * </pre> | ||
| */ | ||
| public static TreeTraverser<File> fileTreeTraverser() { | ||
| return Files.fileTreeTraverser(); | ||
| } | ||
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| /** | ||
| * 以文件名正则表达式为filter，配合fileTreeTraverser使用 | ||
| */ | ||
| public static final class RegexFileNameFilter implements Predicate<File> { | ||
| private final Pattern pattern; | ||
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| private RegexFileNameFilter(String pattern) { | ||
| this.pattern = Pattern.compile(pattern); | ||
| } | ||
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| @Override | ||
| public boolean apply(File input) { | ||
| return input.isFile() && pattern.matcher(input.getName()).matches(); | ||
| } | ||
| } | ||
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| /** | ||
| * 以文件名通配符为filter，配合fileTreeTraverser使用. | ||
| * | ||
| * @param pattern 支持*与?的通配符，如hello*.txt 匹配 helloworld.txt | ||
| */ | ||
| public static final class WildcardFileNameFilter implements Predicate<File> { | ||
| private final String pattern; | ||
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| private WildcardFileNameFilter(String pattern) { | ||
| this.pattern = pattern; | ||
| } | ||
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| @Override | ||
| public boolean apply(File input) { | ||
| return input.isFile() && WildcardMatcher.match(input.getName(), pattern); | ||
| } | ||
| } | ||
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| /** | ||
| * 以文件名后缀做filter，配合fileTreeTraverser使用 | ||
| */ | ||
| public static final class FileExtensionFilter implements Predicate<File> { | ||
| private final String extension; | ||
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| private FileExtensionFilter(String extension) { | ||
| this.extension = extension; | ||
| } | ||
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| @Override | ||
| public boolean apply(File input) { | ||
| return input.isFile() && extension.equals(FileUtil.getFileExtension(input)); | ||
| } | ||
| } | ||
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| /** | ||
| * 以ant风格的path为filter，配合fileTreeTraverser使用. | ||
| * | ||
| * @param pattern 支持ant风格的通配符，如/var/?/a?.txt 匹配 /var/b/ab.txt, 其他通配符包括**,* | ||
| */ | ||
| public static final class AntPathFilter implements Predicate<File> { | ||
| private final String pattern; | ||
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| private AntPathFilter(String pattern) { | ||
| this.pattern = pattern; | ||
| } | ||
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| @Override | ||
| public boolean apply(File input) { | ||
| return input.isFile() && WildcardMatcher.matchPath(input.getName(), pattern); | ||
| } | ||
| } | ||
| } |
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