8 * particular file as subject to the "Classpath" exception as provided 9 * by Oracle in the LICENSE file that accompanied this code. 10 * 11 * This code is distributed in the hope that it will be useful, but WITHOUT 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 * version 2 for more details (a copy is included in the LICENSE file that 15 * accompanied this code). 16 * 17 * You should have received a copy of the GNU General Public License version 18 * 2 along with this work; if not, write to the Free Software Foundation, 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 20 * 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22 * or visit www.oracle.com if you need additional information or have any 23 * questions. 24 */ 25 26 package com.oracle.tools.packager; 27 28 import com.oracle.tools.packager.Log; 29 import java.io.*; 30 import java.net.URL; 31 import java.nio.channels.FileChannel; 32 import java.util.Arrays; 33 34 public class IOUtils { 35 36 public static boolean deleteRecursive(File path) throws FileNotFoundException { 37 boolean ret = true; 38 if (!path.exists()) { //nothing to do 39 return true; 40 } 41 if (path.isDirectory()) { 42 File[] children = path.listFiles(); 43 if (children != null) { 44 for (File f : children) { 45 ret = ret && deleteRecursive(f); 46 } 47 } 48 } 49 return ret && path.delete(); 50 } 51 52 public static void copyFromURL(URL location, File file) throws IOException { 53 copyFromURL(location, file, false); 54 } 55 56 public static void copyFromURL(URL location, File file, boolean append) throws IOException { 57 if (location == null) { 58 throw new IOException("Missing input resource!"); 59 } 60 if (file.exists() && !append) { 61 file.delete(); 62 } 63 InputStream in = location.openStream(); 64 FileOutputStream out = new FileOutputStream(file, append); 65 byte[] buffer = new byte[1024]; 66 int len; 67 while ((len = in.read(buffer)) != -1) { 68 out.write(buffer, 0, len); 69 } | 8 * particular file as subject to the "Classpath" exception as provided 9 * by Oracle in the LICENSE file that accompanied this code. 10 * 11 * This code is distributed in the hope that it will be useful, but WITHOUT 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 * version 2 for more details (a copy is included in the LICENSE file that 15 * accompanied this code). 16 * 17 * You should have received a copy of the GNU General Public License version 18 * 2 along with this work; if not, write to the Free Software Foundation, 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 20 * 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22 * or visit www.oracle.com if you need additional information or have any 23 * questions. 24 */ 25 26 package com.oracle.tools.packager; 27 28 import java.io.*; 29 import java.net.URL; 30 import java.util.Arrays; 31 import java.nio.channels.FileChannel; 32 import java.nio.file.FileVisitResult; 33 import java.nio.file.Files; 34 import java.nio.file.Path; 35 import java.nio.file.SimpleFileVisitor; 36 import java.nio.file.attribute.BasicFileAttributes; 37 38 public class IOUtils { 39 40 public static void deleteRecursive(File path) throws IOException { 41 if (!path.exists()) { 42 return; 43 } 44 Path directory = path.toPath(); 45 Files.walkFileTree(directory, new SimpleFileVisitor<Path>() { 46 @Override 47 public FileVisitResult visitFile(Path file, 48 BasicFileAttributes attributes) throws IOException { 49 Files.delete(file); 50 return FileVisitResult.CONTINUE; 51 } 52 53 @Override 54 public FileVisitResult postVisitDirectory(Path dir, IOException e) 55 throws IOException { 56 Files.delete(dir); 57 return FileVisitResult.CONTINUE; 58 } 59 }); 60 } 61 62 public static void copyFromURL(URL location, File file) throws IOException { 63 copyFromURL(location, file, false); 64 } 65 66 public static void copyFromURL(URL location, File file, boolean append) throws IOException { 67 if (location == null) { 68 throw new IOException("Missing input resource!"); 69 } 70 if (file.exists() && !append) { 71 file.delete(); 72 } 73 InputStream in = location.openStream(); 74 FileOutputStream out = new FileOutputStream(file, append); 75 byte[] buffer = new byte[1024]; 76 int len; 77 while ((len = in.read(buffer)) != -1) { 78 out.write(buffer, 0, len); 79 } |