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/*******************************************************************************
* Copyright (c) 2004, 2007 Mylyn project committers 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
*******************************************************************************/
package org.eclipse.mylyn.internal.bugzilla.core;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import org.apache.commons.httpclient.methods.multipart.PartSource;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.core.runtime.Status;
import org.eclipse.core.runtime.SubProgressMonitor;
import org.eclipse.mylyn.commons.core.StatusHandler;
import org.eclipse.mylyn.tasks.core.ITask;
import org.eclipse.mylyn.tasks.core.TaskRepository;
import org.eclipse.mylyn.tasks.core.data.AbstractTaskAttachmentHandler;
import org.eclipse.mylyn.tasks.core.data.AbstractTaskAttachmentSource;
import org.eclipse.mylyn.tasks.core.data.TaskAttachmentMapper;
import org.eclipse.mylyn.tasks.core.data.TaskAttribute;
/**
* @author Rob Elves
* @since 3.0
*/
public class BugzillaTaskAttachmentHandler extends AbstractTaskAttachmentHandler {
private final BugzillaRepositoryConnector connector;
public BugzillaTaskAttachmentHandler(BugzillaRepositoryConnector connector) {
this.connector = connector;
}
@Override
public boolean canGetContent(TaskRepository repository, ITask task) {
// ignore
return true;
}
@Override
public boolean canPostContent(TaskRepository repository, ITask task) {
// ignore
return true;
}
@Override
public InputStream getContent(TaskRepository repository, ITask task, TaskAttribute attachmentAttribute,
IProgressMonitor monitor) throws CoreException {
try {
monitor.beginTask("Getting attachment", IProgressMonitor.UNKNOWN);
TaskAttachmentMapper attachment = TaskAttachmentMapper.createFrom(attachmentAttribute);
ByteArrayOutputStream out = new ByteArrayOutputStream();
downloadAttachment(repository, task, attachment.getAttachmentId(), out, monitor);
return new ByteArrayInputStream(out.toByteArray());
} finally {
monitor.done();
}
}
@Override
public void postContent(TaskRepository repository, ITask task, AbstractTaskAttachmentSource source, String comment,
TaskAttribute attachmentAttribute, IProgressMonitor monitor) throws CoreException {
try {
monitor.beginTask("Sending attachment", IProgressMonitor.UNKNOWN);
BugzillaClient client = connector.getClientManager().getClient(repository,
new SubProgressMonitor(monitor, IProgressMonitor.UNKNOWN));
String description = source.getDescription();
String contentType = source.getContentType();
String filename = source.getName();
boolean isPatch = false;
if (attachmentAttribute != null) {
TaskAttachmentMapper mapper = TaskAttachmentMapper.createFrom(attachmentAttribute);
if (mapper.getDescription() != null) {
description = mapper.getDescription();
}
if (mapper.getContentType() != null) {
contentType = mapper.getContentType();
}
if (mapper.getFileName() != null) {
filename = mapper.getFileName();
}
if (mapper.isPatch() != null) {
isPatch = mapper.isPatch();
}
}
if (description == null) {
throw new CoreException(new Status(IStatus.WARNING, BugzillaCorePlugin.ID_PLUGIN,
"A description is required when submitting attachments."));
}
client.postAttachment(task.getTaskId(), comment, description, contentType, isPatch,
new AttachmentPartSource(source, filename), monitor);
} catch (IOException e) {
throw new CoreException(new Status(IStatus.ERROR, BugzillaCorePlugin.ID_PLUGIN,
"Unable to submit attachment", e));
} finally {
monitor.done();
}
}
private void downloadAttachment(TaskRepository repository, ITask task, String attachmentId, OutputStream out,
IProgressMonitor monitor) throws CoreException {
BugzillaClient client;
try {
client = connector.getClientManager().getClient(repository,
new SubProgressMonitor(monitor, IProgressMonitor.UNKNOWN));
client.getAttachmentData(attachmentId, out, monitor);
} catch (IOException e) {
throw new CoreException(new Status(IStatus.ERROR, BugzillaCorePlugin.ID_PLUGIN,
"Unable to retrieve attachment", e));
}
}
public static class AttachmentPartSource implements PartSource {
private final AbstractTaskAttachmentSource attachment;
private final String filename;
public AttachmentPartSource(AbstractTaskAttachmentSource attachment, String filename) {
this.attachment = attachment;
this.filename = filename;
}
public AttachmentPartSource(AbstractTaskAttachmentSource attachment) {
this(attachment, attachment.getName());
}
public InputStream createInputStream() throws IOException {
try {
return attachment.createInputStream(null);
} catch (CoreException e) {
StatusHandler.log(new Status(IStatus.ERROR, BugzillaCorePlugin.ID_PLUGIN,
"Error submitting attachment", e));
throw new IOException("Failed to create source stream");
}
}
public String getFileName() {
return filename;
}
public long getLength() {
return attachment.getLength();
}
}
}
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