| // 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.tapestry.workbench.upload; |
| |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.io.OutputStream; |
| import java.io.StringWriter; |
| import java.io.Writer; |
| |
| import org.apache.tapestry.ApplicationRuntimeException; |
| import org.apache.tapestry.IRequestCycle; |
| import org.apache.tapestry.html.BasePage; |
| import org.apache.tapestry.request.IUploadFile; |
| import org.apache.tapestry.util.io.BinaryDumpOutputStream; |
| |
| /** |
| * Displays the uploaded file as a hexadecimal dump. |
| * |
| * @author Howard Lewis Ship |
| * @version $Id$ |
| * |
| **/ |
| |
| public class UploadResults extends BasePage |
| { |
| private IUploadFile file; |
| private String fileDump; |
| |
| public void detach() |
| { |
| file = null; |
| fileDump = null; |
| |
| super.detach(); |
| } |
| |
| public IUploadFile getFile() |
| { |
| return file; |
| } |
| |
| public String getFileDump() |
| { |
| return fileDump; |
| } |
| |
| public void activate( |
| IUploadFile file, |
| boolean showAscii, |
| int bytesPerLine, |
| IRequestCycle cycle) |
| { |
| this.file = file; |
| |
| StringWriter writer = null; |
| BinaryDumpOutputStream out = null; |
| InputStream in = null; |
| |
| try |
| { |
| in = file.getStream(); |
| |
| writer = new StringWriter(); |
| out = new BinaryDumpOutputStream(writer); |
| |
| out.setShowAscii(showAscii); |
| out.setBytesPerLine(bytesPerLine); |
| |
| byte[] buffer = new byte[1000]; |
| |
| while (true) |
| { |
| int length = in.read(buffer); |
| |
| if (length < 0) |
| break; |
| |
| out.write(buffer, 0, length); |
| } |
| |
| in.close(); |
| in = null; |
| |
| out.close(); |
| out = null; |
| |
| fileDump = writer.getBuffer().toString(); |
| |
| writer.close(); |
| writer = null; |
| } |
| catch (IOException ex) |
| { |
| throw new ApplicationRuntimeException("Unable to display file.", this, null, ex); |
| } |
| finally |
| { |
| close(in); |
| close(out); |
| close(writer); |
| } |
| |
| cycle.activate(this); |
| } |
| |
| private void close(InputStream stream) |
| { |
| if (stream != null) |
| { |
| try |
| { |
| stream.close(); |
| } |
| catch (IOException ex) |
| { |
| } |
| } |
| } |
| |
| private void close(OutputStream stream) |
| { |
| if (stream != null) |
| { |
| try |
| { |
| stream.close(); |
| } |
| catch (IOException ex) |
| { |
| } |
| } |
| } |
| |
| private void close(Writer writer) |
| { |
| if (writer != null) |
| { |
| try |
| { |
| writer.close(); |
| } |
| catch (IOException ex) |
| { |
| } |
| } |
| } |
| } |