app-c/appc/appc-dg/appc-dg-shared/appc-dg-ssh/src/main/java/org/openecomp/appc/dg/ssh/impl/SshServiceImpl.java

   1 /*-
   2  * ============LICENSE_START=======================================================
   3  * openECOMP : APP-C
   4  * ================================================================================
   5  * Copyright (C) 2017 AT&T Intellectual Property. All rights
   6  *                                              reserved.
   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
  11  *
  12  *      http://www.apache.org/licenses/LICENSE-2.0
  13  *
  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  */
  21
  22 package org.openecomp.appc.dg.ssh.impl;
  23
  24 import com.fasterxml.jackson.databind.ObjectMapper;
  25
  26 import java.io.ByteArrayOutputStream;
  27 import java.io.IOException;
  28 import java.util.Map;
  29
  30 import org.openecomp.appc.adapter.ssh.SshAdapter;
  31 import org.openecomp.appc.adapter.ssh.SshConnection;
  32 import org.openecomp.appc.adapter.ssh.SshConnectionDetails;
  33 import org.openecomp.appc.dg.ssh.SshService;
  34 import org.openecomp.appc.exceptions.APPCException;
  35 import com.att.eelf.configuration.EELFLogger;
  36 import com.att.eelf.configuration.EELFManager;
  37 import org.openecomp.sdnc.sli.SvcLogicContext;
  38
  39
  40 public class SshServiceImpl implements SshService {
  41
  42         private static final EELFLogger logger = EELFManager.getInstance().getApplicationLogger();
  43         private static final ObjectMapper mapper = new ObjectMapper();
  44
  45         private SshAdapter sshAdapter;
  46
  47         public void setSshAdapter(SshAdapter sshAdapter) {
  48                 this.sshAdapter = sshAdapter;
  49         }
  50
  51         @Override
  52         public void exec(Map<String, String> params, SvcLogicContext ctx) throws APPCException {
  53                 SshConnectionDetails connectionDetails = resolveConnectionDetails(params.get(PARAM_IN_connection_details));
  54                 String command = params.get(PARAM_IN_command);
  55                 logger.debug("=> Connecting to SSH server...");
  56                 SshConnection sshConnection = sshAdapter.getConnection(connectionDetails.getHost(), connectionDetails.getPort(), connectionDetails.getUsername(), connectionDetails.getPassword());
  57                 sshConnection.connect();
  58                 try {
  59                         logger.debug("=> Connected to SSH server...");
  60                         logger.debug("=> Running SSH command...");
  61                         long timeout = DEF_timeout;
  62                         String stimeout = params.get(PARAM_IN_timeout);
  63                         if ((stimeout != null && !stimeout.isEmpty())) {
  64                                 timeout = Long.parseLong(stimeout);
  65                         }
  66                         sshConnection.setExecTimeout(timeout);
  67                         ByteArrayOutputStream stdout = new ByteArrayOutputStream();
  68                         ByteArrayOutputStream stderr = new ByteArrayOutputStream();
  69                         int status = sshConnection.execCommand(command, stdout, stderr);
  70                         String stdoutRes = stdout.toString();
  71                         String stderrRes = stderr.toString();
  72                         logger.debug("=> executed SSH command");
  73                         ctx.setAttribute(PARAM_OUT_status, String.format("%01d", status));
  74                         ctx.setAttribute(PARAM_OUT_stdout, stdoutRes);
  75                         ctx.setAttribute(PARAM_OUT_stderr, stderrRes);
  76                 } finally {
  77                         sshConnection.disconnect();
  78                 }
  79         }
  80
  81         private SshConnectionDetails resolveConnectionDetails(String connectionDetailsStr) throws APPCException {
  82                 SshConnectionDetails connectionDetails = null;
  83                 try {
  84                         connectionDetails = mapper.readValue(connectionDetailsStr, SshConnectionDetails.class);
  85                         if (0 == connectionDetails.getPort()) connectionDetails.setPort(DEF_port);
  86                 } catch (IOException e) {
  87                         throw new APPCException(e);
  88                 }
  89                 return connectionDetails;
  90         }
  91
  92         @Override
  93         public void execWithStatusCheck(Map<String, String> params, SvcLogicContext ctx) throws APPCException {
  94                 exec(params, ctx);
  95                 int status = Integer.parseInt(ctx.getAttribute(PARAM_OUT_status));
  96                 if(status != DEF_SUCCESS_STATUS) {
  97                         StringBuilder errmsg = new StringBuilder();
  98                         errmsg.append("SSH command returned error status [").append(status).append(']');
  99                         String stderr = ctx.getAttribute(PARAM_OUT_stderr);
 100                         if((stderr != null) && !stderr.isEmpty()) {
 101                                 errmsg.append(". Error: [").append(stderr).append(']');
 102                         }
 103                         throw new APPCException(errmsg.toString());
 104                 }
 105         }
 106 }