| /* Copyright 2004 The Apache Software Foundation |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package org.apache.xmlbeans.impl.common; |
| |
| import java.io.InputStream; |
| import java.io.OutputStream; |
| import java.io.IOException; |
| import java.io.File; |
| import java.io.FileInputStream; |
| import java.io.FileOutputStream; |
| import java.net.URI; |
| import java.nio.channels.FileChannel; |
| |
| public class IOUtil |
| { |
| public static void copyCompletely(InputStream input, OutputStream output) |
| throws IOException |
| { |
| //if both are file streams, use channel IO |
| if ((output instanceof FileOutputStream) && (input instanceof FileInputStream)) |
| { |
| try |
| { |
| FileChannel target = ((FileOutputStream) output).getChannel(); |
| FileChannel source = ((FileInputStream) input).getChannel(); |
| |
| source.transferTo(0, Integer.MAX_VALUE, target); |
| |
| source.close(); |
| target.close(); |
| |
| return; |
| } |
| catch (Exception e) |
| { /* failover to byte stream version */ } |
| } |
| |
| byte[] buf = new byte[8192]; |
| while (true) |
| { |
| int length = input.read(buf); |
| if (length < 0) |
| break; |
| output.write(buf, 0, length); |
| } |
| |
| try { input.close(); } catch (IOException ignore) {} |
| try { output.close(); } catch (IOException ignore) {} |
| } |
| |
| public static void copyCompletely(URI input, URI output) |
| throws IOException |
| { |
| try |
| { |
| InputStream in = null; |
| try |
| { |
| File f = new File(input); |
| if (f.exists()) |
| in = new FileInputStream(f); |
| } |
| catch (Exception notAFile) |
| {} |
| |
| File out = new File(output); |
| File dir = out.getParentFile(); |
| dir.mkdirs(); |
| |
| if (in == null) |
| in = input.toURL().openStream(); |
| |
| IOUtil.copyCompletely(in, new FileOutputStream(out)); |
| } |
| catch (IllegalArgumentException e) |
| { |
| throw new IOException("Cannot copy to " + output); |
| } |
| } |
| |
| } |