Start support of a small server for Jack compilation

Change-Id: I38d410565da4f480c60cdd9405603eebaa2d9938

4 files changed, 64 insertions, 3 deletions

diff --git a/sched/src/com/android/sched/util/file/AbstractStreamFile.java b/sched/src/com/android/sched/util/file/AbstractStreamFile.java
index 2a680d4..6bd4b94 100644
--- a/sched/src/com/android/sched/util/file/AbstractStreamFile.java
+++ b/sched/src/com/android/sched/util/file/AbstractStreamFile.java
@@ -127,8 +127,8 @@ public abstract class AbstractStreamFile extends FileOrDirectory {
       throw new NoSuchFileException(location);
     }
 
-    // Check it is a file
-    if (!file.isFile()) {
+    // Check if it is not a Directory
+    if (file.isDirectory()) {
       throw new NotFileException(location);
     }
   }
diff --git a/sched/src/com/android/sched/util/file/Directory.java b/sched/src/com/android/sched/util/file/Directory.java
index 55b30da..2d7f3ae 100644
--- a/sched/src/com/android/sched/util/file/Directory.java
+++ b/sched/src/com/android/sched/util/file/Directory.java
@@ -96,7 +96,7 @@ public class Directory extends FileOrDirectory {
       throw new NoSuchFileException(location);
     }
 
-    // Check directory
+    // Check if it is a directory
     if (!file.isDirectory()) {
       throw new NotDirectoryException(location);
     }
diff --git a/sched/src/com/android/sched/util/file/FileOrDirectory.java b/sched/src/com/android/sched/util/file/FileOrDirectory.java
index dde0146..c7d7dca 100644
--- a/sched/src/com/android/sched/util/file/FileOrDirectory.java
+++ b/sched/src/com/android/sched/util/file/FileOrDirectory.java
@@ -125,6 +125,44 @@ public abstract class FileOrDirectory implements HasLocation {
     }
   }
 
+
+  public static void unsetPermissions(@Nonnull File file, @Nonnull Location location,
+      int permissions, @Nonnull FileOrDirectory.ChangePermission change)
+      throws CannotSetPermissionException {
+    if (change != ChangePermission.NOCHANGE) {
+      // Set access
+      if ((permissions & Permission.READ) != 0) {
+        if (file.setReadable(false, change == ChangePermission.OWNER)) {
+          logger.log(Level.FINE, "Clear readable permission to {0} (''{1}'')",
+              new Object[] {location.getDescription(), file.getAbsoluteFile()});
+        } else {
+          throw new CannotSetPermissionException(location, Permission.READ,
+              change);
+        }
+      }
+
+      if ((permissions & Permission.WRITE) != 0) {
+        if (file.setWritable(false, change == ChangePermission.OWNER)) {
+          logger.log(Level.FINE, "Clear writable permission to {0} (''{1}'')",
+              new Object[] {location.getDescription(), file.getAbsoluteFile()});
+        } else {
+          throw new CannotSetPermissionException(location, Permission.WRITE,
+              change);
+        }
+      }
+
+      if ((permissions & Permission.EXECUTE) != 0) {
+        if (file.setExecutable(false, change == ChangePermission.OWNER)) {
+          logger.log(Level.FINE, "Clear executable permission to {0} (''{1}'')",
+              new Object[] {location.getDescription(), file.getAbsoluteFile()});
+        } else {
+          throw new CannotSetPermissionException(location, Permission.EXECUTE,
+              change);
+        }
+      }
+    }
+  }
+
   public static void checkPermissions(@Nonnull File file, @Nonnull Location location,
       int permissions) throws WrongPermissionException {
     if ((permissions & Permission.READ) != 0) {
diff --git a/sched/src/com/android/sched/util/file/OutputStreamFile.java b/sched/src/com/android/sched/util/file/OutputStreamFile.java
index 055869b..6956ba1 100644
--- a/sched/src/com/android/sched/util/file/OutputStreamFile.java
+++ b/sched/src/com/android/sched/util/file/OutputStreamFile.java
@@ -83,6 +83,29 @@ public class OutputStreamFile extends AbstractStreamFile {
     this.append = false;
   }
 
+  /**
+   * Creates a new instance of {@link OutputStreamFile} assuming the file must exist, without
+   * modifying its permissions. It will be overwritten.
+   */
+  public OutputStreamFile(@Nonnull String name)
+      throws WrongPermissionException, NotFileException {
+    super(name, null);
+
+    try {
+      performChecks(Existence.MUST_EXIST, Permission.WRITE, ChangePermission.NOCHANGE);
+    } catch (NoSuchFileException e) {
+      throw new AssertionError(e);
+    } catch (FileAlreadyExistsException e) {
+      throw new AssertionError(e);
+    } catch (CannotSetPermissionException e) {
+      throw new AssertionError(e);
+    } catch (CannotCreateFileException e) {
+      throw new AssertionError(e);
+    }
+
+    this.append = false;
+  }
+
   @Nonnull
   private static final Location STANDARD_OUTPUT_LOCATION = new StandardOutputLocation();
   @Nonnull