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NIO-based file deletion: returning true if file does not exist

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This commit is contained in:
Eugene Zhuravlev
2015-02-13 18:57:57 +01:00
parent 853f9c567f
commit 291ec072fe
1 changed files with 10 additions and 0 deletions
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platform/util-rt/src/com/intellij/openapi/util/io/FileUtilRt.java
+10
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@@ -77,12 +77,14 @@ public class FileUtilRt {
private static Method ourFilesWalkMethod;
private static Method ourFileToPathMethod;
private static Object ourDeletionVisitor;
private static Class ourNoSuchFileExceptionClass;
static {
boolean initSuccess = false;
try {
final Class<?> pathClass = Class.forName("java.nio.file.Path");
final Class<?> visitorClass = Class.forName("java.nio.file.FileVisitor");
final Class<?> filesClass = Class.forName("java.nio.file.Files");
ourNoSuchFileExceptionClass = Class.forName("java.nio.file.NoSuchFileException");
ourFileToPathMethod = Class.forName("java.io.File").getMethod("toPath");
ourFilesWalkMethod = filesClass.getMethod("walkFileTree", pathClass, visitorClass);
@@ -140,6 +142,7 @@ public class FileUtilRt {
ourFilesWalkMethod = null;
ourFilesDeleteIfExistsMethod = null;
ourDeletionVisitor = null;
ourNoSuchFileExceptionClass = null;
}
NIO_FILE_API_AVAILABLE = initSuccess;
}
@@ -643,6 +646,13 @@ public class FileUtilRt {
final Object pathObject = ourFileToPathMethod.invoke(file);
ourFilesWalkMethod.invoke(null, pathObject, ourDeletionVisitor);
}
catch (InvocationTargetException e) {
final Throwable cause = e.getCause();
if (cause == null || !ourNoSuchFileExceptionClass.isInstance(cause)) {
LOG.info(e);
return false;
}
}
catch (Exception e) {
LOG.info(e);
return false;