2 * ============LICENSE_START=======================================================
4 * ================================================================================
5 * Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
6 * Copyright (C) 2017 Amdocs
7 * ================================================================================
8 * Licensed under the Apache License, Version 2.0 (the "License");
9 * you may not use this file except in compliance with the License.
10 * You may obtain a copy of the License at
12 * http://www.apache.org/licenses/LICENSE-2.0
14 * Unless required by applicable law or agreed to in writing, software
15 * distributed under the License is distributed on an "AS IS" BASIS,
16 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
17 * See the License for the specific language governing permissions and
18 * limitations under the License.
19 * ============LICENSE_END=========================================================
20 * ECOMP is a trademark and service mark of AT&T Intellectual Property.
23 package org.openecomp.appc.adapter.ssh;
25 import java.io.OutputStream;
28 * Provides utility method(s) to call commands on remote host via SSH.
30 public interface SshConnection {
33 * Connect to SSH server.
38 * Connect to SSH Server using a retry mechanism
40 void connectWithRetry();
43 * Disconnect from SSH server.
48 * Exec remote command over SSH. Return command execution status.
49 * Command output is written to out or err stream.
51 * @param cmd command to execute
52 * @param out content of sysout will go to this stream
53 * @param err content of syserr will go to this stream
54 * @return command execution status
56 int execCommand(String cmd, OutputStream out, OutputStream err);
59 * Exec remote command over SSH with pseudo-tty. Return command execution status.
60 * Command output is written to out stream only as pseudo-tty writes to one stream only.
62 * @param cmd command to execute
63 * @param out content of sysout will go to this stream
64 * @return command execution status
66 int execCommandWithPty(String cmd, OutputStream out);
69 * Set the command execution timeout
70 * @param timeout time in milliseconds
72 void setExecTimeout(long timeout);