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authorMatthias Klose <doko@gcc.gnu.org>2007-06-03 23:18:43 +0000
committerMatthias Klose <doko@gcc.gnu.org>2007-06-03 23:18:43 +0000
commite1bea0c0687c5f4551b3a6058ec37ce3705fa6cc (patch)
treea9c9e7d91c484d53fe154f9285fc57325572ce50 /libjava/java/io/File.java
parentaf333b9a7f9e1cc1029bec56d48f2de63acdf686 (diff)
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libjava/classpath/ChangeLog.gcj:
2007-05-31 Matthias Klose <doko@ubuntu.com> * javax/management/NotificationBroadcasterSupport.java (getNotificationInfo): Add cast. * native/jni/qt-peer/Makefile.am (AM_CXXFLAGS): Add libstdc++ include directories. * native/jni/qt-peer/Makefile.in: Regenerate. libjava/ChangeLog: 2007-06-03 Matthias Klose <doko@ubuntu.com> * java/io/natFileWin32.cc (setFilePermissions): New (stub only). _access: Handle EXEC query, stub only. 2007-06-03 Matthias Klose <doko@ubuntu.com> Merged from classpath: * gnu/java/nio/SelectorProviderImpl.java: Whitespace merge. * java/lang/System.java(inheritedChannel): New. * java/lang/Character.java: Remove stray`;'. * java/net/MulticastSocket.java: Merged. * java/text/DateFormatSymbols.java(getInstance): New, comment updates. * java/text/Collator.java(getInstance): Merged. * java/util/Calendar.java: New attributes ALL_STYLES, SHORT, LONG. getDisplayName, getDisplayNames: New. * java/util/logging/Logger.java: Merged. * Regenerate .class and .h files. 2007-06-03 Matthias Klose <doko@ubuntu.com> * java/io/File.java: Merge with classpath-0.95, new method setFilePermissions, new attribute EXEC. * java/io/natFilePosix.cc (setFilePermissions): New. _access: Handle EXEC query. * classpath/lib/java/io/File.class, java/io/File.h: Regenerate. 2007-06-03 Matthias Klose <doko@ubuntu.com> Imported GNU Classpath 0.95. * classpath/Makefile.in, classpath/native/jni/midi-dssi/Makefile.in, classpath/native/jni/classpath/Makefile.in, classpath/native/jni/Makefile.in, classpath/native/jni/gconf-peer/Makefile.in, classpath/native/jni/java-io/Makefile.in, classpath/native/jni/native-lib/Makefile.in, classpath/native/jni/java-util/Makefile.in, classpath/native/jni/midi-alsa/Makefile.in, classpath/native/jni/java-lang/Makefile.in, classpath/native/jni/java-nio/Makefile.in, classpath/native/jni/java-net/Makefile.in, classpath/native/jni/xmlj/Makefile.in, classpath/native/jni/qt-peer/Makefile.in, classpath/native/jni/gtk-peer/Makefile.in, classpath/native/Makefile.in, classpath/native/jawt/Makefile.in, classpath/native/fdlibm/Makefile.in, classpath/native/plugin/Makefile.in, classpath/resource/Makefile.in, classpath/scripts/Makefile.in, classpath/tools/Makefile.in, classpath/doc/Makefile.in, classpath/doc/api/Makefile.in, classpath/lib/Makefile.in, classpath/external/Makefile.in, classpath/external/jsr166/Makefile.in, classpath/external/sax/Makefile.in, classpath/external/w3c_dom/Makefile.in, classpath/external/relaxngDatatype/Makefile.in, classpath/include/Makefile.in, classpath/examples/Makefile.in: Regenerate. * classpath/config.guess, classpath/config.sub, classpath/ltmain.sh : Update. * classpath/configure, classpath/depcomp, classpath/missing, classpath/aclocal.m4, classpath/install-sh: Regenerate. * gnu/classpath/Configuration.java (CLASSPATH_VERSION): Now 0.95. * sources.am: Regenerate. * Makefile.in: Regenerate. * Update the .class files and generated CNI header files, add new .class and generated CNI header files. * Remove generated files for removed java source files: classpath/gnu/java/net/BASE64.java, classpath/gnu/java/security/util/Base64.java, classpath/gnu/java/awt/peer/gtk/GThreadMutex.java, classpath/gnu/java/awt/peer/gtk/GThreadNativeMethodRunner.java, classpath/gnu/java/awt/font/autofit/Scaler.java, classpath/gnu/classpath/jdwp/util/Value.java, classpath/gnu/javax/net/ssl/Base64.java. * Remove empty directories. * Makefile.am(nat_source_files): Add natVMOperatingSystemMXBeanImpl.cc. * java/lang/Class.java(setAccessible): Merge from classpath. * java/util/Locale.java: Remove. * gnu/java/lang/management/VMOperatingSystemMXBeanImpl.java, gnu/java/lang/management/natVMOperatingSystemMXBeanImpl.cc: New. * gcj/javaprims.h: Update class declarations. * scripts/classes.pl: Update usage. * HACKING: Mention to build all peers. From-SVN: r125302
Diffstat (limited to 'libjava/java/io/File.java')
-rw-r--r--libjava/java/io/File.java184
1 files changed, 184 insertions, 0 deletions
diff --git a/libjava/java/io/File.java b/libjava/java/io/File.java
index 33776ab..0026ffa 100644
--- a/libjava/java/io/File.java
+++ b/libjava/java/io/File.java
@@ -67,6 +67,7 @@ public class File implements Serializable, Comparable
private final static int READ = 0;
private final static int WRITE = 1;
private final static int EXISTS = 2;
+ private final static int EXEC = 3;
// QUERY arguments to stat function.
private final static int DIRECTORY = 0;
@@ -182,6 +183,27 @@ public class File implements Serializable, Comparable
return _access (WRITE);
}
+ /**
+ * This method tests whether or not the current thread is allowed to
+ * to execute the file pointed to by this object. This will be true if and
+ * and only if 1) the file exists and 2) the <code>SecurityManager</code>
+ * (if any) allows access to the file via it's <code>checkExec</code>
+ * method 3) the file is executable.
+ *
+ * @return <code>true</code> if execution is allowed,
+ * <code>false</code> otherwise
+ *
+ * @exception SecurityException If the <code>SecurityManager</code>
+ * does not allow access to the file
+ */
+ public boolean canExecute()
+ {
+ if (!exists())
+ return false;
+ checkExec();
+ return _access (EXEC);
+ }
+
private native boolean performCreate() throws IOException;
/**
@@ -1139,6 +1161,159 @@ public class File implements Serializable, Comparable
}
/*
+ * This native method sets file permissions.
+ */
+ private native boolean setFilePermissions(boolean enable, boolean ownerOnly,
+ int permissions);
+
+ /**
+ * This method sets the owner's read permission for the File represented by
+ * this object.
+ *
+ * It is the same as calling <code>setReadable(readable, true)</code>.
+ *
+ * @param <code>readable</code> <code>true</code> to set read permission,
+ * <code>false</code> to unset the read permission.
+ * @return <code>true</code> if the file permissions are changed,
+ * <code>false</code> otherwise.
+ * @exception SecurityException If write access of the file is not permitted.
+ * @see #setReadable(boolean, boolean)
+ * @since 1.6
+ */
+ public boolean setReadable(boolean readable)
+ {
+ return setReadable(readable, true);
+ }
+
+ /**
+ * This method sets the read permissions for the File represented by
+ * this object.
+ *
+ * If <code>ownerOnly</code> is set to <code>true</code> then only the
+ * read permission bit for the owner of the file is changed.
+ *
+ * If <code>ownerOnly</code> is set to <code>false</code>, the file
+ * permissions are changed so that the file can be read by everyone.
+ *
+ * On unix like systems this sets the <code>user</code>, <code>group</code>
+ * and <code>other</code> read bits and is equal to call
+ * <code>chmod a+r</code> on the file.
+ *
+ * @param <code>readable</code> <code>true</code> to set read permission,
+ * <code>false</code> to unset the read permission.
+ * @param <code>ownerOnly</code> <code>true</code> to set read permission
+ * for owner only, <code>false</code> for all.
+ * @return <code>true</code> if the file permissions are changed,
+ * <code>false</code> otherwise.
+ * @exception SecurityException If write access of the file is not permitted.
+ * @see #setReadable(boolean)
+ * @since 1.6
+ */
+ public boolean setReadable(boolean readable, boolean ownerOnly)
+ {
+ checkWrite();
+ return setFilePermissions(readable, ownerOnly, READ);
+ }
+
+ /**
+ * This method sets the owner's write permission for the File represented by
+ * this object.
+ *
+ * It is the same as calling <code>setWritable(readable, true)</code>.
+ *
+ * @param <code>writable</code> <code>true</code> to set write permission,
+ * <code>false</code> to unset write permission.
+ * @return <code>true</code> if the file permissions are changed,
+ * <code>false</code> otherwise.
+ * @exception SecurityException If write access of the file is not permitted.
+ * @see #setWritable(boolean, boolean)
+ * @since 1.6
+ */
+ public boolean setWritable(boolean writable)
+ {
+ return setWritable(writable, true);
+ }
+
+ /**
+ * This method sets the write permissions for the File represented by
+ * this object.
+ *
+ * If <code>ownerOnly</code> is set to <code>true</code> then only the
+ * write permission bit for the owner of the file is changed.
+ *
+ * If <code>ownerOnly</code> is set to <code>false</code>, the file
+ * permissions are changed so that the file can be written by everyone.
+ *
+ * On unix like systems this set the <code>user</code>, <code>group</code>
+ * and <code>other</code> write bits and is equal to call
+ * <code>chmod a+w</code> on the file.
+ *
+ * @param <code>writable</code> <code>true</code> to set write permission,
+ * <code>false</code> to unset write permission.
+ * @param <code>ownerOnly</code> <code>true</code> to set write permission
+ * for owner only, <code>false</code> for all.
+ * @return <code>true</code> if the file permissions are changed,
+ * <code>false</code> otherwise.
+ * @exception SecurityException If write access of the file is not permitted.
+ * @see #setWritable(boolean)
+ * @since 1.6
+ */
+ public boolean setWritable(boolean writable, boolean ownerOnly)
+ {
+ checkWrite();
+ return setFilePermissions(writable, ownerOnly, WRITE);
+ }
+
+ /**
+ * This method sets the owner's execute permission for the File represented
+ * by this object.
+ *
+ * It is the same as calling <code>setExecutable(readable, true)</code>.
+ *
+ * @param <code>executable</code> <code>true</code> to set execute permission,
+ * <code>false</code> to unset execute permission.
+ * @return <code>true</code> if the file permissions are changed,
+ * <code>false</code> otherwise.
+ * @exception SecurityException If write access of the file is not permitted.
+ * @see #setExecutable(boolean, boolean)
+ * @since 1.6
+ */
+ public boolean setExecutable(boolean executable)
+ {
+ return setExecutable(executable, true);
+ }
+
+ /**
+ * This method sets the execute permissions for the File represented by
+ * this object.
+ *
+ * If <code>ownerOnly</code> is set to <code>true</code> then only the
+ * execute permission bit for the owner of the file is changed.
+ *
+ * If <code>ownerOnly</code> is set to <code>false</code>, the file
+ * permissions are changed so that the file can be executed by everyone.
+ *
+ * On unix like systems this set the <code>user</code>, <code>group</code>
+ * and <code>other</code> write bits and is equal to call
+ * <code>chmod a+x</code> on the file.
+ *
+ * @param <code>executable</code> <code>true</code> to set write permission,
+ * <code>false</code> to unset write permission.
+ * @param <code>ownerOnly</code> <code>true</code> to set write permission
+ * for owner only, <code>false</code> for all.
+ * @return <code>true</code> if the file permissions are changed,
+ * <code>false</code> otherwise.
+ * @exception SecurityException If write access of the file is not permitted.
+ * @see #setExecutable(boolean)
+ * @since 1.6
+ */
+ public boolean setExecutable(boolean executable, boolean ownerOnly)
+ {
+ checkWrite();
+ return setFilePermissions(executable, ownerOnly, EXEC);
+ }
+
+ /*
* This native method sets the permissions to make the file read only.
*/
private native boolean performSetReadOnly();
@@ -1372,6 +1547,15 @@ public class File implements Serializable, Comparable
s.checkRead(path);
}
+ private void checkExec()
+ {
+ // Check the SecurityManager
+ SecurityManager s = System.getSecurityManager();
+
+ if (s != null)
+ s.checkExec(path);
+ }
+
/**
* Calling this method requests that the file represented by this object
* be deleted when the virtual machine exits. Note that this request cannot