// Copyright 2012 Citrix Systems, Inc. Licensed under the
// Apache License, Version 2.0 (the "License"); you may not use this
// file except in compliance with the License. Citrix Systems, Inc.
// reserves all rights not expressly granted by 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.
//
// Automatically generated by addcopyright.py at 04/03/2012
package com.cloud.storage.template;
import java.io.File;
import org.apache.log4j.Logger;
import com.cloud.storage.StorageLayer;
public abstract class TemplateDownloaderBase implements TemplateDownloader {
private static final Logger s_logger = Logger.getLogger(TemplateDownloaderBase.class);
protected String _downloadUrl;
protected String _toFile;
protected TemplateDownloader.Status _status= TemplateDownloader.Status.NOT_STARTED;
protected String _errorString = " ";
protected long _remoteSize = 0;
protected long _downloadTime = 0;
protected long _totalBytes;
protected DownloadCompleteCallback _callback;
protected boolean _resume = false;
protected String _toDir;
protected long _start;
protected StorageLayer _storage;
protected boolean _inited = false;
private long MAX_TEMPLATE_SIZE_IN_BYTES;
public TemplateDownloaderBase(StorageLayer storage, String downloadUrl, String toDir, long maxTemplateSizeInBytes, DownloadCompleteCallback callback) {
_storage = storage;
_downloadUrl = downloadUrl;
_toDir = toDir;
_callback = callback;
_inited = true;
this.MAX_TEMPLATE_SIZE_IN_BYTES = maxTemplateSizeInBytes;
}
@Override
public String getDownloadError() {
return _errorString;
}
@Override
public String getDownloadLocalPath() {
File file = new File(_toFile);
return file.getAbsolutePath();
}
@Override
public int getDownloadPercent() {
if (_remoteSize == 0) {
return 0;
}
return (int)(100.0*_totalBytes/_remoteSize);
}
@Override
public long getDownloadTime() {
return _downloadTime;
}
@Override
public long getDownloadedBytes() {
return _totalBytes;
}
@Override
public Status getStatus() {
return _status;
}
@Override
public void setDownloadError(String string) {
_errorString = string;
}
@Override
public void setStatus(Status status) {
_status = status;
}
@Override
public boolean stopDownload() {
switch (getStatus()) {
case IN_PROGRESS:
case UNKNOWN:
case NOT_STARTED:
case RECOVERABLE_ERROR:
case UNRECOVERABLE_ERROR:
case ABORTED:
_status = TemplateDownloader.Status.ABORTED;
break;
case DOWNLOAD_FINISHED:
break;
default:
break;
}
File f = new File(_toFile);
if (f.exists()) {
f.delete();
}
return true;
}
public long getMaxTemplateSizeInBytes() {
return this.MAX_TEMPLATE_SIZE_IN_BYTES;
}
@Override
public void run() {
try {
download(_resume, _callback);
} catch (Exception e) {
s_logger.warn("Unable to complete download due to ", e);
_errorString = "Failed to install: " + e.getMessage();
_status = TemplateDownloader.Status.UNRECOVERABLE_ERROR;
}
}
@Override
public void setResume(boolean resume) {
_resume = resume;
}
@Override
public boolean isInited() {
return _inited;
}
}