1 files changed, 115 insertions, 0 deletions
diff --git a/src/main/java/io/skas/melbjvm/nio2/Nio2MetaDataLoggingUtils.java b/src/main/java/io/skas/melbjvm/nio2/Nio2MetaDataLoggingUtils.java
new file mode 100644
index 0000000..3c2451d
--- /dev/null
+++ b/src/main/java/io/skas/melbjvm/nio2/Nio2MetaDataLoggingUtils.java
@@ -0,0 +1,115 @@
+package io.skas.melbjvm.nio2;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import java.io.IOException;
+import java.nio.file.FileStore;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.nio.file.attribute.*;
+import java.util.Set;
+
+public class Nio2MetaDataLoggingUtils {
+
+    public static final Logger LOG = LoggerFactory.getLogger(Nio2MetaDataLoggingUtils.class);
+
+    public static final long BYTES_IN_MEGABYTE = 1048576L;
+
+    public static final String BASIC_VIEW = "basic";
+    public static final String OWNER_VIEW = "owner";
+    public static final String USER_VIEW = "user";
+    public static final String UNIX_VIEW = "unix";
+    public static final String DOS_VIEW = "dos";
+    public static final String POSIX_VIEW = "posix";
+
+    public static void logBasicFileAttributes(Path path) throws IOException {
+        final FileStore fileStore = Files.getFileStore(path);
+
+        if (fileStore.supportsFileAttributeView(BASIC_VIEW)) {
+            BasicFileAttributes basicFileAttributes = Files.readAttributes(path, BasicFileAttributes.class);
+
+            LOG.info("Basic file attributes for path [{}]", path);
+
+            LOG.info("  isDirectory?     {}", basicFileAttributes.isDirectory());
+            LOG.info("  isOther?         {}", basicFileAttributes.isOther());
+            LOG.info("  isRegularFile?   {}", basicFileAttributes.isRegularFile());
+            LOG.info("  isSymbolicLink?  {}", basicFileAttributes.isSymbolicLink());
+        } else {
+            LOG.info("the file store in which [{}] resides doesn't support the [{}] file attribute view", path, BASIC_VIEW);
+        }
+    }
+
+    public static void logDosFileAttributes(Path path) throws IOException {
+        final FileStore fileStore = Files.getFileStore(path);
+
+        if (fileStore.supportsFileAttributeView(DOS_VIEW)) {
+            DosFileAttributes dosFileAttributes = Files.readAttributes(path, DosFileAttributes.class);
+
+            LOG.info("Dos file attributes for path [{}]", path);
+
+            LOG.info("  isArchive?   {}", dosFileAttributes.isArchive());
+            LOG.info("  isHidden?    {}", dosFileAttributes.isHidden());
+            LOG.info("  isReadOnly?  {}", dosFileAttributes.isReadOnly());
+            LOG.info("  isSystem?    {}", dosFileAttributes.isSystem());
+        } else {
+            LOG.info("the file store in which [{}] resides doesn't support the [{}] file attribute view", path, DOS_VIEW);
+        }
+    }
+
+    public static void logPosixFileAttributes(Path path) throws IOException {
+        final FileStore fileStore = Files.getFileStore(path);
+
+        if (fileStore.supportsFileAttributeView(POSIX_VIEW)) {
+            PosixFileAttributes posixFileAttributes = Files.readAttributes(path, PosixFileAttributes.class);
+
+            final Set<PosixFilePermission> permissions = posixFileAttributes.permissions();
+
+            LOG.info("Posix file attributes for path [{}]", path);
+
+            LOG.info("  owner?               {}", posixFileAttributes.owner());
+            LOG.info("  group?               {}", posixFileAttributes.group());
+            LOG.info("  owner permissions?   {}",
+                    (permissions.contains(PosixFilePermission.OWNER_READ) ? "r" : "-") +
+                            (permissions.contains(PosixFilePermission.OWNER_WRITE) ? "w" : "-") +
+                            (permissions.contains(PosixFilePermission.OWNER_EXECUTE) ? "x" : "-"));
+            LOG.info("  group permissions?   {}",
+                    (permissions.contains(PosixFilePermission.GROUP_READ) ? "r" : "-") +
+                            (permissions.contains(PosixFilePermission.GROUP_WRITE) ? "w" : "-") +
+                            (permissions.contains(PosixFilePermission.GROUP_EXECUTE) ? "x" : "-"));
+            LOG.info("  others permissions?  {}",
+                    (permissions.contains(PosixFilePermission.OTHERS_READ) ? "r" : "-") +
+                            (permissions.contains(PosixFilePermission.OTHERS_WRITE) ? "w" : "-") +
+                            (permissions.contains(PosixFilePermission.OTHERS_EXECUTE) ? "x" : "-"));
+        } else {
+            LOG.info("the file store in which [{}] resides doesn't support the [{}] file attribute view", path, POSIX_VIEW);
+        }
+    }
+
+    public static void logFileOwnerAttributes(Path path) throws IOException {
+        final FileStore fileStore = Files.getFileStore(path);
+
+        if (fileStore.supportsFileAttributeView(OWNER_VIEW)) {
+            final FileOwnerAttributeView fileAttributeView = Files.getFileAttributeView(path, FileOwnerAttributeView.class);
+            LOG.info("Owner file attributes for path [{}]", path);
+
+            LOG.info("  principal:  {}", fileAttributeView.getOwner());
+
+        } else {
+            LOG.info("the file store in which [{}] resides doesn't support the [{}] file attribute view", path, OWNER_VIEW);
+        }
+    }
+
+    public static void logFileStoreAttributes(Path path) throws IOException {
+        final FileStore fileStore = Files.getFileStore(path);
+
+        LOG.info("File store attributes for path [{}]", path);
+
+        LOG.info("  name:               {}", fileStore.name());
+        LOG.info("  type:               {}", fileStore.type());
+        LOG.info("  total space:        {}", fileStore.getTotalSpace() / BYTES_IN_MEGABYTE);
+        LOG.info("  total unallocated:  {}", fileStore.getUnallocatedSpace() / BYTES_IN_MEGABYTE);
+        LOG.info("  total space:        {}", fileStore.getUsableSpace() / BYTES_IN_MEGABYTE);
+    }
+
+}