Package org.apache.airavata.gfac.handler

Source Code of org.apache.airavata.gfac.handler.SCPInputHandler

/*
*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements.  See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership.  The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with 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
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* KIND, either express or implied.  See the License for the
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package org.apache.airavata.gfac.handler;

import java.io.File;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import java.util.Set;

import net.schmizz.sshj.xfer.scp.SCPFileTransfer;

import org.apache.airavata.commons.gfac.type.ActualParameter;
import org.apache.airavata.commons.gfac.type.MappingFactory;
import org.apache.airavata.gfac.GFacException;
import org.apache.airavata.gfac.context.JobExecutionContext;
import org.apache.airavata.gfac.context.MessageContext;
import org.apache.airavata.gfac.context.security.SSHSecurityContext;
import org.apache.airavata.schemas.gfac.ApplicationDeploymentDescriptionType;
import org.apache.airavata.schemas.gfac.URIArrayType;
import org.apache.airavata.schemas.gfac.URIParameterType;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

public class SCPInputHandler implements GFacHandler{

  private static final Logger log = LoggerFactory.getLogger(SCPInputHandler.class);

  @Override
  public void invoke(JobExecutionContext jobExecutionContext) throws GFacHandlerException,GFacException {

      log.info("Invoking SCPInputHandler");


          MessageContext inputNew = new MessageContext();
          try {
              MessageContext input = jobExecutionContext.getInMessageContext();
              Set<String> parameters = input.getParameters().keySet();
              for (String paramName : parameters) {
                  ActualParameter actualParameter = (ActualParameter) input.getParameters().get(paramName);
                  String paramValue = MappingFactory.toString(actualParameter);
                  //TODO: Review this with type
                  if ("URI".equals(actualParameter.getType().getType().toString())) {
                      ((URIParameterType) actualParameter.getType()).setValue(stageInputFiles(jobExecutionContext, paramValue));
                  } else if ("URIArray".equals(actualParameter.getType().getType().toString())) {
                      List<String> split = Arrays.asList(paramValue.split(","));
                      List<String> newFiles = new ArrayList<String>();
                      for (String paramValueEach : split) {
                          newFiles.add(stageInputFiles(jobExecutionContext, paramValueEach));
                      }
                      ((URIArrayType) actualParameter.getType()).setValueArray(newFiles.toArray(new String[newFiles.size()]));
                  }
                  inputNew.getParameters().put(paramName, actualParameter);
              }
          } catch (Exception e) {
              log.error(e.getMessage());
              throw new GFacHandlerException("Error while input File Staging", jobExecutionContext, e, e.getLocalizedMessage());
          }
          jobExecutionContext.setInMessageContext(inputNew);
  }
   private static String stageInputFiles(JobExecutionContext context,String paramValue) throws IOException,GFacException{
     ApplicationDeploymentDescriptionType app = context.getApplicationContext().getApplicationDeploymentDescription().getType();

     SSHSecurityContext securityContext = (SSHSecurityContext)context.getSecurityContext(SSHSecurityContext.SSH_SECURITY_CONTEXT);
     SCPFileTransfer fileTransfer = securityContext.getSSHClient().newSCPFileTransfer();
     String remoteFile = app.getInputDataDirectory() + File.separatorChar + paramValue;

     File inputFile = new File(paramValue);
     fileTransfer.upload(inputFile.getAbsolutePath(), remoteFile);
     return remoteFile;
   }
}
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