Folder Search Java












0















i want to find every folder with an specific name. i found an solution but it is suboptmial because it takes to long.



private List<Path> walkDirTreeAndSearch(final Path rootFolder, final String search, final boolean xoraya) {
final List<Path> foundTraces = new ArrayList<>();
long time;

time = System.currentTimeMillis();

if (!Files.exists(rootFolder)) {
return foundTraces;
}

//Finds all files with the specific 'search' string
try {
Files.walk(Paths.get(String.valueOf(rootFolder)), FileVisitOption.FOLLOW_LINKS)
.filter(t -> t.toString().contains(search)).forEach(foundTraces::add);
} catch (final IOException e) {
LOG.error(e);
}

//Finds all roots with 'xoraya' in it
if (xoraya) {
final Predicate<Path> pathPredicate2 = path -> path.getParent().toString().matches("^((?!xoraya).)*$");
foundTraces.removeIf(pathPredicate2);
final Predicate<Path> pathPredicate1 = path -> path.getParent().toString().contains("converted");
foundTraces.removeIf(pathPredicate1);
}

time = System.currentTimeMillis() - time;

return foundTraces;
}


Does anyone know a way to find every folder with a specific name?










share|improve this question




















  • 1





    What’s the rationale behind Paths.get(String.valueOf(rootFolder)), instead of just using rootFolder? And why don’t you put the conditions right in the filter predicate instead of removing after the fact? But I doubt that you can change the performance significantly, as it’s the I/O that dominates here. Or well, when you want to exclude certain roots, it might have a benefit not to traverse these sub-directories.

    – Holger
    Nov 13 '18 at 15:47


















0















i want to find every folder with an specific name. i found an solution but it is suboptmial because it takes to long.



private List<Path> walkDirTreeAndSearch(final Path rootFolder, final String search, final boolean xoraya) {
final List<Path> foundTraces = new ArrayList<>();
long time;

time = System.currentTimeMillis();

if (!Files.exists(rootFolder)) {
return foundTraces;
}

//Finds all files with the specific 'search' string
try {
Files.walk(Paths.get(String.valueOf(rootFolder)), FileVisitOption.FOLLOW_LINKS)
.filter(t -> t.toString().contains(search)).forEach(foundTraces::add);
} catch (final IOException e) {
LOG.error(e);
}

//Finds all roots with 'xoraya' in it
if (xoraya) {
final Predicate<Path> pathPredicate2 = path -> path.getParent().toString().matches("^((?!xoraya).)*$");
foundTraces.removeIf(pathPredicate2);
final Predicate<Path> pathPredicate1 = path -> path.getParent().toString().contains("converted");
foundTraces.removeIf(pathPredicate1);
}

time = System.currentTimeMillis() - time;

return foundTraces;
}


Does anyone know a way to find every folder with a specific name?










share|improve this question




















  • 1





    What’s the rationale behind Paths.get(String.valueOf(rootFolder)), instead of just using rootFolder? And why don’t you put the conditions right in the filter predicate instead of removing after the fact? But I doubt that you can change the performance significantly, as it’s the I/O that dominates here. Or well, when you want to exclude certain roots, it might have a benefit not to traverse these sub-directories.

    – Holger
    Nov 13 '18 at 15:47
















0












0








0








i want to find every folder with an specific name. i found an solution but it is suboptmial because it takes to long.



private List<Path> walkDirTreeAndSearch(final Path rootFolder, final String search, final boolean xoraya) {
final List<Path> foundTraces = new ArrayList<>();
long time;

time = System.currentTimeMillis();

if (!Files.exists(rootFolder)) {
return foundTraces;
}

//Finds all files with the specific 'search' string
try {
Files.walk(Paths.get(String.valueOf(rootFolder)), FileVisitOption.FOLLOW_LINKS)
.filter(t -> t.toString().contains(search)).forEach(foundTraces::add);
} catch (final IOException e) {
LOG.error(e);
}

//Finds all roots with 'xoraya' in it
if (xoraya) {
final Predicate<Path> pathPredicate2 = path -> path.getParent().toString().matches("^((?!xoraya).)*$");
foundTraces.removeIf(pathPredicate2);
final Predicate<Path> pathPredicate1 = path -> path.getParent().toString().contains("converted");
foundTraces.removeIf(pathPredicate1);
}

time = System.currentTimeMillis() - time;

return foundTraces;
}


Does anyone know a way to find every folder with a specific name?










share|improve this question
















i want to find every folder with an specific name. i found an solution but it is suboptmial because it takes to long.



private List<Path> walkDirTreeAndSearch(final Path rootFolder, final String search, final boolean xoraya) {
final List<Path> foundTraces = new ArrayList<>();
long time;

time = System.currentTimeMillis();

if (!Files.exists(rootFolder)) {
return foundTraces;
}

//Finds all files with the specific 'search' string
try {
Files.walk(Paths.get(String.valueOf(rootFolder)), FileVisitOption.FOLLOW_LINKS)
.filter(t -> t.toString().contains(search)).forEach(foundTraces::add);
} catch (final IOException e) {
LOG.error(e);
}

//Finds all roots with 'xoraya' in it
if (xoraya) {
final Predicate<Path> pathPredicate2 = path -> path.getParent().toString().matches("^((?!xoraya).)*$");
foundTraces.removeIf(pathPredicate2);
final Predicate<Path> pathPredicate1 = path -> path.getParent().toString().contains("converted");
foundTraces.removeIf(pathPredicate1);
}

time = System.currentTimeMillis() - time;

return foundTraces;
}


Does anyone know a way to find every folder with a specific name?







java file search java-8 folder






share|improve this question















share|improve this question













share|improve this question




share|improve this question








edited Nov 13 '18 at 16:56









Mani

3221320




3221320










asked Nov 13 '18 at 12:51









SatekiSateki

32




32








  • 1





    What’s the rationale behind Paths.get(String.valueOf(rootFolder)), instead of just using rootFolder? And why don’t you put the conditions right in the filter predicate instead of removing after the fact? But I doubt that you can change the performance significantly, as it’s the I/O that dominates here. Or well, when you want to exclude certain roots, it might have a benefit not to traverse these sub-directories.

    – Holger
    Nov 13 '18 at 15:47
















  • 1





    What’s the rationale behind Paths.get(String.valueOf(rootFolder)), instead of just using rootFolder? And why don’t you put the conditions right in the filter predicate instead of removing after the fact? But I doubt that you can change the performance significantly, as it’s the I/O that dominates here. Or well, when you want to exclude certain roots, it might have a benefit not to traverse these sub-directories.

    – Holger
    Nov 13 '18 at 15:47










1




1





What’s the rationale behind Paths.get(String.valueOf(rootFolder)), instead of just using rootFolder? And why don’t you put the conditions right in the filter predicate instead of removing after the fact? But I doubt that you can change the performance significantly, as it’s the I/O that dominates here. Or well, when you want to exclude certain roots, it might have a benefit not to traverse these sub-directories.

– Holger
Nov 13 '18 at 15:47







What’s the rationale behind Paths.get(String.valueOf(rootFolder)), instead of just using rootFolder? And why don’t you put the conditions right in the filter predicate instead of removing after the fact? But I doubt that you can change the performance significantly, as it’s the I/O that dominates here. Or well, when you want to exclude certain roots, it might have a benefit not to traverse these sub-directories.

– Holger
Nov 13 '18 at 15:47














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