/*******************************************************************************
* Copyright (c) 2004 Composent, Inc. 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: Composent, Inc. - initial API and implementation
* Cloudsmith, Inc. - additional API and implementation
******************************************************************************/
package org.eclipse.ecf.provider.filetransfer.outgoing;
import java.io.BufferedInputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.net.ProtocolException;
import java.net.URLConnection;
import org.eclipse.ecf.core.util.Proxy;
import org.eclipse.ecf.filetransfer.SendFileTransferException;
import org.eclipse.ecf.filetransfer.service.ISendFileTransfer;
import org.eclipse.ecf.internal.provider.filetransfer.Messages;
import org.eclipse.ecf.provider.filetransfer.util.JREProxyHelper;
import org.eclipse.osgi.util.NLS;
public abstract class AbstractUrlConnectionOutgoingFileTransfer extends AbstractOutgoingFileTransfer implements ISendFileTransfer {
private static final int OK_RESPONSE_CODE = 200;
protected URLConnection urlConnection;
protected long lastModifiedTime = 0L;
protected int httpVersion = 1;
protected int responseCode = -1;
protected String responseMessage = null;
private JREProxyHelper proxyHelper = null;
public AbstractUrlConnectionOutgoingFileTransfer() {
super();
proxyHelper = new JREProxyHelper();
}
/**
* Setup and connect. Subclasses should override as appropriate. After calling is complete,
* the <code>urlConnection</code> member variable should be non-null, and ready to have it's
* getInputStream() method called.
*
* @throws IOException if the connection cannot be opened.
*/
protected abstract void connect() throws IOException;
protected boolean isConnected() {
return (urlConnection != null);
}
public int getResponseCode() {
if (responseCode != -1)
return responseCode;
if (isHTTP()) {
final String response = urlConnection.getHeaderField(0);
if (response == null) {
responseCode = -1;
httpVersion = 1;
return responseCode;
}
if (response == null || !response.startsWith("HTTP/")) //$NON-NLS-1$
return -1;
response.trim();
final int mark = response.indexOf(" ") + 1; //$NON-NLS-1$
if (mark == 0)
return -1;
if (response.charAt(mark - 2) != '1')
httpVersion = 0;
int last = mark + 3;
if (last > response.length())
last = response.length();
responseCode = Integer.parseInt(response.substring(mark, last));
if (last + 1 <= response.length())
responseMessage = response.substring(last + 1);
} else {
responseCode = OK_RESPONSE_CODE;
responseMessage = "OK"; //$NON-NLS-1$
}
return responseCode;
}
private boolean isHTTP() {
final String protocol = getRemoteFileURL().getProtocol();
if (protocol.equalsIgnoreCase("http") || protocol.equalsIgnoreCase("https")) //$NON-NLS-1$ //$NON-NLS-2$
return true;
return false;
}
/**
* @param proxy2 the ECF proxy to setup
*/
protected void setupProxy(final Proxy proxy2) {
proxyHelper.setupProxy(proxy2);
}
/*
* (non-Javadoc)
*
* @see org.eclipse.ecf.provider.filetransfer.retrieve.AbstractRetrieveFileTransfer#openStreams()
*/
protected void openStreams() throws SendFileTransferException {
try {
File localFile = getFileTransferInfo().getFile();
// Set input stream from local file
setInputStream(new BufferedInputStream(new FileInputStream(localFile)));
// Then connect
connect();
// Make PUT request
setOutputStream(urlConnection.getOutputStream());
} catch (final Exception e) {
throw new SendFileTransferException(NLS.bind(Messages.UrlConnectionOutgoingFileTransfer_EXCEPTION_COULD_NOT_CONNECT, getRemoteFileURL().toString()), e);
}
}
/*
* (non-Javadoc)
*
* @see org.eclipse.ecf.provider.filetransfer.retrieve.AbstractRetrieveFileTransfer#hardClose()
*/
protected void hardClose() {
super.hardClose();
int rCode = getResponseCode();
if (rCode != OK_RESPONSE_CODE) {
exception = new ProtocolException(NLS.bind("{0} {1}", new Integer(rCode), responseMessage)); //$NON-NLS-1$
}
urlConnection = null;
if (proxyHelper != null) {
proxyHelper.dispose();
proxyHelper = null;
}
}
}