Package org.apache.airavata.core.gfac.extension.post

Source Code of org.apache.airavata.core.gfac.extension.post.GridFtpOutputStaging

/*
*
* 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
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied.  See the License for the
* specific language governing permissions and limitations
* under the License.
*
*/

package org.apache.airavata.core.gfac.extension.post;

import java.io.File;
import java.net.URI;
import java.net.URISyntaxException;
import java.net.UnknownHostException;
import java.util.Iterator;

import org.apache.airavata.commons.gfac.type.ActualParameter;
import org.apache.airavata.core.gfac.context.invocation.InvocationContext;
import org.apache.airavata.core.gfac.context.message.MessageContext;
import org.apache.airavata.core.gfac.context.security.impl.GSISecurityContext;
import org.apache.airavata.core.gfac.exception.ExtensionException;
import org.apache.airavata.core.gfac.exception.SecurityException;
import org.apache.airavata.core.gfac.exception.ToolsException;
import org.apache.airavata.core.gfac.extension.PostExecuteChain;
import org.apache.airavata.core.gfac.external.GridFtp;
import org.apache.airavata.core.gfac.utils.GfacUtils;
import org.apache.airavata.schemas.gfac.ApplicationDeploymentDescriptionType;
import org.apache.airavata.schemas.gfac.DataType;
import org.apache.airavata.schemas.gfac.FileParameterType;
import org.apache.airavata.schemas.gfac.GlobusHostType;
import org.apache.airavata.schemas.gfac.HostDescriptionType;
import org.ietf.jgss.GSSCredential;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

/**
* Output plugin to transfer file from GridFTP host to location given in output parameter
*/
public class GridFtpOutputStaging extends PostExecuteChain {

    public static final Logger log = LoggerFactory.getLogger(GridFtpOutputStaging.class);

    public static final String MYPROXY_SECURITY_CONTEXT = "myproxy";

    public boolean execute(InvocationContext context) throws ExtensionException {
        try {
            MessageContext<ActualParameter> outputContext = context.getOutput();

            if (outputContext != null) {

                for (Iterator<String> iterator = outputContext.getNames(); iterator.hasNext();) {
                    String key = iterator.next();

                    if (outputContext.getValue(key).hasType(DataType.FILE)) {
                        FileParameterType fileParameter = (FileParameterType) outputContext.getValue(key).getType();

                        /*
                         * Determine scheme
                         */
                        URI uri = URI.create(fileParameter.getValue());
                        if (uri.getScheme().equalsIgnoreCase(GridFtp.GSIFTP_SCHEME)) {

                            /*
                             * src complete URI
                             */
                            File file = new File(uri.getPath());
                            String srcFilePath = file.getName();

                            ApplicationDeploymentDescriptionType app = context.getExecutionDescription().getApp()
                                    .getType();
                            srcFilePath = app.getOutputDataDirectory() + File.separator + srcFilePath;

                            HostDescriptionType hostDescription = context.getExecutionDescription().getHost().getType();
                            if (hostDescription instanceof GlobusHostType) {
                                gridFTPTransfer(context, uri, srcFilePath);
                            } else if (GfacUtils.isLocalHost(hostDescription.getHostAddress())) {
                                uploadFile(context, uri, srcFilePath);
                            }
                        }
                    }
                }
            } else {
                log.debug("Output Context is null");
            }
        } catch (UnknownHostException e) {
            throw new ExtensionException("Cannot find IP Address for current host", e);
        } catch (URISyntaxException e) {
            throw new ExtensionException("URI is in the wrong format:" + e.getMessage(), e);
        } catch (ToolsException e) {
            throw new ExtensionException(e.getMessage(), e);
        } catch (SecurityException e) {
            throw new ExtensionException(e.getMessage(), e);
        }
        return false;
    }

    private void gridFTPTransfer(InvocationContext context, URI dest, String remoteSrcFile) throws SecurityException,
            ToolsException, URISyntaxException {
        GridFtp ftp = new GridFtp();
        GSSCredential gssCred = ((GSISecurityContext) context.getSecurityContext(MYPROXY_SECURITY_CONTEXT))
                .getGssCredentails();
        GlobusHostType host = (GlobusHostType) context.getExecutionDescription().getHost().getType();

        for (String endpoint : host.getGridFTPEndPointArray()) {
            try {
                URI srcURI = GfacUtils.createGsiftpURI(endpoint, remoteSrcFile);
                ftp.transfer(srcURI, dest, gssCred, true);
                return;
            } catch (ToolsException e) {
                log.error(e.getMessage(), e);
            }
        }

    }

    private void uploadFile(InvocationContext context, URI dest, String localFile) throws SecurityException,
            ToolsException {
        GridFtp ftp = new GridFtp();
        GSSCredential gssCred = ((GSISecurityContext) context.getSecurityContext(MYPROXY_SECURITY_CONTEXT))
                .getGssCredentails();
        ftp.uploadFile(dest, gssCred, new File(localFile));
    }
}
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