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/*******************************************************************************
* Copyright (c) 2004 - 2006 University Of British Columbia and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* University Of British Columbia - initial API and implementation
*******************************************************************************/
package org.eclipse.mylar.internal.trac.core;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.core.runtime.Status;
import org.eclipse.mylar.internal.trac.core.model.TracTicket;
import org.eclipse.mylar.tasks.core.AbstractRepositoryTask;
import org.eclipse.mylar.tasks.core.IAttachmentHandler;
import org.eclipse.mylar.tasks.core.RepositoryAttachment;
import org.eclipse.mylar.tasks.core.RepositoryTaskAttribute;
import org.eclipse.mylar.tasks.core.TaskRepository;
/**
* @author Steffen Pingel
*/
public class TracAttachmentHandler implements IAttachmentHandler {
private TracRepositoryConnector connector;
public TracAttachmentHandler(TracRepositoryConnector connector) {
this.connector = connector;
}
public void downloadAttachment(TaskRepository repository, RepositoryAttachment attachment, File file) throws CoreException {
String filename = attachment.getAttributeValue(RepositoryTaskAttribute.ATTACHMENT_FILENAME);
if (filename == null) {
throw new CoreException(new Status(IStatus.ERROR, TracCorePlugin.PLUGIN_ID, IStatus.OK, "Attachment download from " + repository.getUrl() + " failed, missing attachment filename.", null));
}
try {
ITracClient client = connector.getClientManager().getRepository(repository);
int id = Integer.parseInt(attachment.getTaskId());
byte[] data = client.getAttachmentData(id, filename);
writeData(file, data);
} catch (Exception e) {
throw new CoreException(new Status(IStatus.ERROR, TracCorePlugin.PLUGIN_ID, 0, "Attachment download from " +repository.getUrl() + " failed, please see details.", e ));
}
}
private void writeData(File file, byte[] data) throws IOException {
OutputStream out = new FileOutputStream(file);
try {
out.write(data);
} finally {
out.close();
}
}
public void uploadAttachment(TaskRepository repository, AbstractRepositoryTask task, String comment, String description, File file, String contentType, boolean isPatch) throws CoreException {
if (!TracRepositoryConnector.hasAttachmentSupport(repository, task)) {
throw new CoreException(new Status(IStatus.INFO, TracCorePlugin.PLUGIN_ID, IStatus.OK, "Attachments are not supported by this repository access type.", null));
}
try {
ITracClient client = connector.getClientManager().getRepository(repository);
int id = Integer.parseInt(AbstractRepositoryTask.getTaskId(task.getHandleIdentifier()));
byte[] data = readData(file);
client.putAttachmentData(id, file.getName(), description, data);
if (comment != null && comment.length() > 0) {
TracTicket ticket = new TracTicket(id);
client.updateTicket(ticket, comment);
}
} catch (Exception e) {
throw new CoreException(new Status(IStatus.ERROR, TracCorePlugin.PLUGIN_ID, 0, "Attachment upload to " + task.getRepositoryUrl() + " failed, please see details.", e ));
}
}
private byte[] readData(File file) throws IOException {
if (file.length() > Integer.MAX_VALUE) {
throw new IOException("Can not upload files larger than " + Integer.MAX_VALUE + " bytes");
}
InputStream in = new FileInputStream(file);
try {
byte[] data = new byte[(int) file.length()];
in.read(data, 0, (int) file.length());
return data;
} finally {
in.close();
}
}
public boolean canDownloadAttachment(TaskRepository repository, AbstractRepositoryTask task) {
return TracRepositoryConnector.hasAttachmentSupport(repository, task);
}
public boolean canUploadAttachment(TaskRepository repository, AbstractRepositoryTask task) {
return TracRepositoryConnector.hasAttachmentSupport(repository, task);
}
public boolean canDeprecate(TaskRepository repository, RepositoryAttachment attachment) {
return false;
}
public void updateAttachment(TaskRepository repository, RepositoryAttachment attachment) throws CoreException {
// ignore
}
public byte[] getAttachmentData(TaskRepository repository, RepositoryAttachment attachment) throws CoreException {
// TODO Auto-generated method stub
return null;
}
}
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