120 lines
3.8 KiB
Java
120 lines
3.8 KiB
Java
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package eu.dnetlib.ariadneplus.workflows.nodes;
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import com.google.common.collect.Lists;
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import eu.dnetlib.msro.workflows.graph.Arc;
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import eu.dnetlib.msro.workflows.nodes.AsyncJobNode;
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import eu.dnetlib.msro.workflows.procs.Env;
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import eu.dnetlib.msro.workflows.util.WorkflowsConstants;
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import eu.dnetlib.rmi.manager.MSROException;
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import org.apache.commons.logging.Log;
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import org.apache.commons.logging.LogFactory;
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import org.apache.http.NameValuePair;
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import org.apache.http.client.entity.UrlEncodedFormEntity;
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import org.apache.http.client.methods.CloseableHttpResponse;
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import org.apache.http.client.methods.HttpPost;
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import org.apache.http.impl.client.CloseableHttpClient;
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import org.apache.http.impl.client.HttpClients;
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import org.apache.http.impl.conn.PoolingHttpClientConnectionManager;
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import org.apache.http.message.BasicNameValuePair;
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import java.io.IOException;
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import java.net.ConnectException;
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import java.util.List;
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public class ImportPeriodoIntoGraphDBJobNode extends AsyncJobNode {
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private static final Log log = LogFactory.getLog(ImportPeriodoIntoGraphDBJobNode.class);
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private String dataUrl;
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private String context;
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private String publisherEndpoint;
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//for parallel requests to the publisher endpoint
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private int nThreads = 5;
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@Override
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protected String execute(final Env env) throws Exception {
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int statusCode = -1;
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String loadedResult = "noResult";
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log.info("Publisher endpoint: " + getPublisherEndpoint());
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log.info("Context: " + getContext());
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log.info("Data url: " + getDataUrl());
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PoolingHttpClientConnectionManager cm = new PoolingHttpClientConnectionManager();
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cm.setMaxTotal(nThreads);
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CloseableHttpClient client = HttpClients.custom().setConnectionManager(cm).build();
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log.info("Feed from url endpoint: " + getFeedFromUrlEndpoint());
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CloseableHttpResponse responsePOST = null;
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try {
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HttpPost post = new HttpPost(getFeedFromUrlEndpoint());
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List<NameValuePair> params = Lists.newArrayList();
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params.add(new BasicNameValuePair("dataUrl", getDataUrl()));
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params.add(new BasicNameValuePair("context", getContext()));
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UrlEncodedFormEntity entity = new UrlEncodedFormEntity(params, "UTF-8");
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post.setEntity(entity);
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responsePOST = client.execute(post);
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statusCode = responsePOST.getStatusLine().getStatusCode();
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switch (statusCode) {
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case 200:
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log.info("data loaded completed");
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loadedResult = "data loaded from url "+ getDataUrl() + " into context "+ getContext();
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break;
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default:
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log.error("error loading data into graphDB " + responsePOST.getStatusLine().getStatusCode() + ": " + responsePOST.getStatusLine().getReasonPhrase());
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break;
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}
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} catch (ConnectException ce) {
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log.error(ce);
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throw new MSROException("Unable to connect to Publisher endpoint" + getFeedFromUrlEndpoint());
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}
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catch (IOException e) {
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log.error(e);
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throw new MSROException("IO error " + getFeedFromUrlEndpoint());
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}
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finally{
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if(responsePOST != null) responsePOST.close();
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client.close();
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cm.shutdown();
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}
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env.setAttribute(WorkflowsConstants.MAIN_LOG_PREFIX + "statusCode", Integer.toString(statusCode));
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env.setAttribute(WorkflowsConstants.MAIN_LOG_PREFIX + "loadedResult", loadedResult);
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log.info(loadedResult);
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if (statusCode!=200) {
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throw new Exception("Error from Publisher endpoint [ status code: " + statusCode + " ]");
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}
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return Arc.DEFAULT_ARC;
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}
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public String getPublisherEndpoint() {
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return publisherEndpoint;
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}
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private String getFeedFromUrlEndpoint() {
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return publisherEndpoint.concat("/feedFromURL");
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}
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public void setPublisherEndpoint(final String publisherEndpoint) {
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this.publisherEndpoint = publisherEndpoint;
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}
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public String getDataUrl() {
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return dataUrl;
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}
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public void setDataUrl(String dataUrl) {
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this.dataUrl = dataUrl;
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}
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public String getContext() {
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return context;
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}
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public void setContext(String context) {
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this.context = context;
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}
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}
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