Created
January 19, 2016 14:03
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List files in a path which having wildcards with Java1.6
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public class App { | |
private static final String PATTERN = "D:\\maven-repository\\commons-cli\\commons-cli\\1.0\\commons-cli-.*.jar"; | |
public static void main(String[] args) { | |
List<File> matches = new ArrayList<File>(); | |
String[] pieces = PATTERN.split("\\.\\*"); | |
if(pieces.length >= 2) { | |
File rootFile = getRootFile(pieces[0]); | |
String remainingPath = PATTERN.substring(rootFile.getPath().length()+1, PATTERN.length()); | |
String[] remainingPieces = remainingPath.split("\\\\"); | |
LinkedList<String> regexes = new LinkedList<String>(); | |
regexes.addAll(Arrays.asList(remainingPieces)); | |
find(rootFile,0, regexes,matches); | |
for (File file : matches) { | |
System.out.println("++" + file); | |
} | |
} | |
} | |
private static void find(File root, int level , LinkedList<String> regexes, List<File> matches) { | |
if(root==null) { | |
return; | |
} | |
if(root.isDirectory()) { | |
String regex = regexes.get(level); | |
for(File subFolder : root.listFiles()) { | |
String name = subFolder.getName(); | |
if(name.matches(regex)) { | |
find(subFolder,level + 1,regexes, matches); | |
} | |
} | |
} else { | |
matches.add(root); | |
return; | |
} | |
} | |
private static File getRootFile(String root) { | |
int lastSlash = root.lastIndexOf("\\"); | |
String rootPath = root.substring(0, lastSlash); | |
File rootFile = new File(rootPath); | |
return rootFile; | |
} | |
} |
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