本文整理汇总了Java中com.jcraft.jsch.Channel.isConnected方法的典型用法代码示例。如果您正苦于以下问题：Java Channel.isConnected方法的具体用法？Java Channel.isConnected怎么用？Java Channel.isConnected使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类com.jcraft.jsch.Channel的用法示例。
在下文中一共展示了Channel.isConnected方法的11个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Java代码示例。
示例1: rename
import com.jcraft.jsch.Channel; //导入方法依赖的package包/类
@Override
public boolean rename(String newName){
Channel channel = null;
try {
channel = SFTPSession.getInstance().getSFTPChannel(mUri);
((ChannelSftp)channel).rename(mUri.getPath(), new File(new File(mUri.getPath()).getParentFile(), newName).getAbsolutePath());
channel.disconnect();
return true;
} catch (Exception e) {
e.printStackTrace();
}finally {
if(channel!=null&&channel.isConnected())
channel.disconnect();
}
return false;
}
示例2: move
import com.jcraft.jsch.Channel; //导入方法依赖的package包/类
@Override
public boolean move(Uri uri) {
if(!mUri.getScheme().equals(uri.getScheme())|| !mUri.getHost().equals(uri.getHost())||mUri.getPort()!=uri.getPort())
return false;
Channel channel = null;
try {
channel = SFTPSession.getInstance().getSFTPChannel(mUri);
((ChannelSftp)channel).rename(mUri.getPath(),uri.getPath());
channel.disconnect();
return true;
} catch (Exception e) {
e.printStackTrace();
}finally {
if(channel!=null&&channel.isConnected())
channel.disconnect();
}
return false;
}
示例3: exists
import com.jcraft.jsch.Channel; //导入方法依赖的package包/类
@Override
public boolean exists() {
Channel channel = null;
try {
channel = SFTPSession.getInstance().getSFTPChannel(mUri);
SftpATTRS attrs = ((ChannelSftp)channel).stat(mUri.getPath());
channel.disconnect();
return attrs !=null;
} catch (Exception e) {
if(channel!=null&&channel.isConnected())
channel.disconnect();
e.printStackTrace();
}finally {
if(channel!=null&&channel.isConnected())
channel.disconnect();
}
return false;
}
示例4: getChannelShell
import com.jcraft.jsch.Channel; //导入方法依赖的package包/类
/**
* Get a {@link ChannelShell}
*
* @param channelSessionKey the session key that identifies the channel
* @return {@link ChannelShell}
* @throws Exception thrown by borrowObject and invalidateObject
*/
private ChannelShell getChannelShell(final ChannelSessionKey channelSessionKey) throws Exception {
final long startTime = System.currentTimeMillis();
Channel channel;
do {
LOGGER.debug("borrowing a channel...");
channel = channelPool.borrowObject(channelSessionKey);
if (channel != null) {
LOGGER.debug("channel {} borrowed", channel.getId());
if (!channel.isConnected()) {
try {
LOGGER.debug("channel {} connecting...", channel.getId());
channel.connect(CHANNEL_CONNECT_TIMEOUT);
LOGGER.debug("channel {} connected!", channel.getId());
} catch (final JSchException jsche) {
LOGGER.error("Borrowed channel {} connection failed! Invalidating the channel...",
channel.getId(), jsche);
channelPool.invalidateObject(channelSessionKey, channel);
}
} else {
LOGGER.debug("Channel {} already connected!", channel.getId());
}
}
if ((channel == null || !channel.isConnected()) && (System.currentTimeMillis() - startTime) > CHANNEL_BORROW_LOOP_WAIT_TIME) {
final String errMsg = MessageFormat.format("Failed to get a channel within {0} ms! Aborting channel acquisition!",
CHANNEL_BORROW_LOOP_WAIT_TIME);
LOGGER.error(errMsg);
throw new JschServiceException(errMsg);
}
} while (channel == null || !channel.isConnected());
return (ChannelShell) channel;
}
示例5: executeCommandNoResponse
import com.jcraft.jsch.Channel; //导入方法依赖的package包/类
public static void executeCommandNoResponse( Session sessionObj, String command )
throws JSchException, IOException
{
logger.debug( "Starting to execute command [" + maskedPasswordString( command ) + "]" );
if ( sessionObj != null && command != null && !"".equals( command ) )
{
Channel channel = null;
try
{
channel = sessionObj.openChannel( "exec" );
( (ChannelExec) channel ).setCommand( command );
channel.setInputStream( null );
( (ChannelExec) channel ).setErrStream( System.err );
channel.getInputStream();
channel.connect();
/* We do not care about whether the command succeeds or not */
if ( channel.isClosed() && channel.getExitStatus() != 0 )
{
logger.debug( "Command exited with error code " + channel.getExitStatus() );
}
}
catch ( Exception e )
{
logger.error( "Received exception during command execution", e );
}
finally
{
if ( channel != null && channel.isConnected() )
{
channel.disconnect();
}
logger.debug( "End of execution of command [" + maskedPasswordString( command ) + "]" );
}
}
}
示例6: executeCommandNoResponse
import com.jcraft.jsch.Channel; //导入方法依赖的package包/类
public static void executeCommandNoResponse( Session sessionObj, String command )
throws JSchException, IOException
{
logger.debug( "Starting to execute command [" + command + "]" );
if ( sessionObj != null && command != null && !"".equals( command ) )
{
Channel channel = null;
try
{
channel = sessionObj.openChannel( "exec" );
( (ChannelExec) channel ).setCommand( command );
channel.setInputStream( null );
( (ChannelExec) channel ).setErrStream( System.err );
channel.getInputStream();
channel.connect();
/* We do not care about whether the command succeeds or not */
if ( channel.isClosed() && channel.getExitStatus() != 0 )
{
logger.debug( "Command exited with error code " + channel.getExitStatus() );
}
}
catch ( Exception e )
{
logger.error( "Received exception during command execution", e );
}
finally
{
if ( channel != null && channel.isConnected() )
{
channel.disconnect();
}
logger.debug( "End of execution of command [" + command + "]" );
}
}
}
示例7: executeCommand
import com.jcraft.jsch.Channel; //导入方法依赖的package包/类
/**
* It executes the command and returns the response back to the calling function. This function will expect Session
* object and command string as parameters .
*
* @param sessionObj
* @param command
* @return
* @throws JSchException
* @throws IOException
*/
public static String executeCommand( Session sessionObj, String command )
throws JSchException, IOException
{
StringBuilder builder = null;
logger.debug( "Starting to execute command [" + maskedPasswordString( command ) + "]" );
if ( sessionObj != null && command != null && !"".equals( command ) )
{
builder = new StringBuilder();
Channel channel = null;
int arrMaxSize = 1024;
try
{
channel = sessionObj.openChannel( "exec" );
( (ChannelExec) channel ).setCommand( command );
channel.setInputStream( null );
( (ChannelExec) channel ).setErrStream( System.err );
InputStream in = channel.getInputStream();
channel.connect();
byte[] tmp = new byte[arrMaxSize];
while ( true )
{
while ( in.available() > 0 )
{
int i = in.read( tmp, 0, arrMaxSize );
if ( i < 0 )
break;
builder.append( new String( tmp, 0, i ) );
}
if ( channel.isClosed() )
{
break;
}
try
{
Thread.sleep( 500 );
}
catch ( Exception ee )
{
}
}
if ( channel.isClosed() && channel.getExitStatus() != 0 )
{
logger.debug( "Command exited with error code " + channel.getExitStatus() );
}
}
catch ( Exception e )
{
logger.error( "Received exception during command execution", e );
}
finally
{
if ( channel != null && channel.isConnected() )
{
channel.disconnect();
}
logger.debug( "End of execution of command [" + maskedPasswordString( command ) + "]" );
}
return builder.toString();
}
return null;
}
示例8: executeCommand
import com.jcraft.jsch.Channel; //导入方法依赖的package包/类
/**
* It executes the command and returns the response back to the calling function. This function will expect Session
* object and command string as parameters .
*
* @param sessionObj
* @param command
* @return
* @throws JSchException
* @throws IOException
*/
public static String executeCommand( Session sessionObj, String command )
throws JSchException, IOException
{
StringBuilder builder = null;
logger.debug( "Starting to execute command [" + command + "]" );
if ( sessionObj != null && command != null && !"".equals( command ) )
{
builder = new StringBuilder();
Channel channel = null;
int arrMaxSize = 1024;
try
{
channel = sessionObj.openChannel( "exec" );
( (ChannelExec) channel ).setCommand( command );
channel.setInputStream( null );
( (ChannelExec) channel ).setErrStream( System.err );
InputStream in = channel.getInputStream();
channel.connect();
byte[] tmp = new byte[arrMaxSize];
while ( true )
{
while ( in.available() > 0 )
{
int i = in.read( tmp, 0, arrMaxSize );
if ( i < 0 )
break;
builder.append( new String( tmp, 0, i ) );
}
if ( channel.isClosed() )
{
break;
}
try
{
Thread.sleep( 500 );
}
catch ( Exception ee )
{
}
}
if ( channel.isClosed() && channel.getExitStatus() != 0 )
{
logger.debug( "Command exited with error code " + channel.getExitStatus() );
}
}
catch ( Exception e )
{
logger.error( "Received exception during command execution", e );
}
finally
{
if ( channel != null && channel.isConnected() )
{
channel.disconnect();
}
logger.debug( "End of execution of command [" + command + "]" );
}
return builder.toString();
}
return null;
}
示例9: executeCommand
import com.jcraft.jsch.Channel; //导入方法依赖的package包/类
/**
* It executes the command and returns the response back to the calling function. This function will expect Session
* object and command string as parameters .
*
* @param sessionObj
* @param command
* @return
* @throws JSchException
* @throws IOException
*/
public static String executeCommand( Session sessionObj, String command )
throws JSchException, IOException
{
StringBuilder builder = null;
logger.debug( "Starting to execute command [" + command + "]" );
if ( sessionObj != null && command != null && !"".equals( command ) )
{
builder = new StringBuilder();
Channel channel = null;
int arrMaxSize = 1024;
try
{
channel = sessionObj.openChannel( "exec" );
( (ChannelExec) channel ).setCommand( command );
channel.setInputStream( null );
( (ChannelExec) channel ).setErrStream( System.err );
InputStream in = channel.getInputStream();
channel.connect();
byte[] tmp = new byte[arrMaxSize];
while ( true )
{
while ( in.available() > 0 )
{
int i = in.read( tmp, 0, arrMaxSize );
if ( i < 0 )
break;
builder.append( new String( tmp, 0, i ) );
}
if ( channel.isClosed() )
{
break;
}
try
{
Thread.sleep( 500 );
}
catch ( Exception ee )
{
}
}
if ( channel.isClosed() && channel.getExitStatus() != 0 )
{
logger.debug( "Command exited with error code " + channel.getExitStatus() );
}
}
catch ( Exception e )
{
logger.error( "Received exception during command execution", e );
}
finally
{
if ( channel != null && channel.isConnected() )
{
channel.disconnect();
}
logger.debug( "End of execution of command [" + command + "]" );
}
return builder.toString();
}
return null;
}
示例10: createJschChannel
import com.jcraft.jsch.Channel; //导入方法依赖的package包/类
private Connection createJschChannel(Session session, InputStream jsch_in,
OutputStream out) throws JSchException, IOException {
final InputStream in;
Channel channel;
// open shell channel with vt100 term
channel = session.openChannel("shell");
((ChannelShell) channel).setPtyType("vt100");
((ChannelShell) channel).setPty(true);
channel.setInputStream(jsch_in);
in = channel.getInputStream();
channel.connect(10000);
// sleep 500s in case we don't have open channel permission and server
// close the channel.
try {
Thread.sleep(500);
} catch (InterruptedException e) {
}
if (!channel.isConnected()) {
throw new NemoException(
"channel has been closed by peer. maybe you don't have permission");
}
final Session _session = session;
final InputStream _in = this.createVT100Filter(in);
final OutputStream _out = out;
return new Connection() {
boolean _active = true;
@Override
public void close() {
_active = false;
_session.disconnect();
}
@Override
public OutputStream getOutputStream() {
return _out;
}
@Override
public InputStream getInputStream() {
return _in;
}
@Override
public boolean isActive() {
return _active && _session.isConnected();
}
};
}
示例11: sendFile
import com.jcraft.jsch.Channel; //导入方法依赖的package包/类
private void sendFile(Channel channel, String localFile, String remoteName, String mode)
throws IOException, RemoteScpException {
byte[] buffer = new byte[BUFFER_SIZE];
OutputStream os = new BufferedOutputStream(channel.getOutputStream(),
SEND_FILE_BUFFER_LENGTH);
InputStream is = new BufferedInputStream(channel.getInputStream(), SEND_BYTES_BUFFER_LENGTH);
try {
if (channel.isConnected()) {
channel.start();
} else {
channel.connect();
}
} catch (JSchException jsche) {
throw new IOException("Channel connection problems", jsche);
}
readResponse(is);
File f = new File(localFile);
long remain = f.length();
String cMode = mode;
if (cMode == null) {
cMode = "0600";
}
String cline = "C" + cMode + " " + remain + " " + remoteName + "\n";
os.write(cline.getBytes());
os.flush();
readResponse(is);
try (FileInputStream fis = new FileInputStream(f)) {
while (remain > 0) {
int trans;
if (remain > buffer.length) {
trans = buffer.length;
} else {
trans = (int) remain;
}
if (fis.read(buffer, 0, trans) != trans) {
throw new IOException("Cannot read enough from local file " + localFile);
}
os.write(buffer, 0, trans);
remain -= trans;
}
fis.close();
}
os.write(0);
os.flush();
readResponse(is);
os.write("E\n".getBytes());
os.flush();
}