280 lines
9.7 KiB
Java
280 lines
9.7 KiB
Java
package eu.dnetlib.ariadneplus.workflows.nodes;
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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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import java.util.Map;
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import java.util.concurrent.ExecutorService;
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import java.util.concurrent.Executors;
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import java.util.concurrent.Future;
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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 org.springframework.beans.factory.annotation.Autowired;
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import com.google.common.collect.Lists;
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import com.google.common.collect.Maps;
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import com.google.gson.Gson;
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import eu.dnetlib.enabling.resultset.client.ResultSetClient;
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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.procs.Token;
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import eu.dnetlib.msro.workflows.util.ResultsetProgressProvider;
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import eu.dnetlib.msro.workflows.util.WorkflowsConstants;
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import eu.dnetlib.rmi.common.ResultSet;
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import eu.dnetlib.rmi.manager.MSROException;
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public class PublishGraphDBJobNode extends AsyncJobNode {
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private static final Log log = LogFactory.getLog(PublishGraphDBJobNode.class);
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private String eprParam;
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@Autowired
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private ResultSetClient resultSetClient;
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private String publisherEndpoint;
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private String datasourceInterface;
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private String datasource;
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//for parallel requests to the publisher endpoint
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private int nThreads = 5;
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private int nTasks = 150;
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private ExecutorService executorService = Executors.newFixedThreadPool(nThreads);
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private List<Future<Integer>> resList = Lists.newArrayList();
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@Override
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protected String execute(final Env env) throws Exception {
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final ResultSet<?> rsIn = env.getAttribute(getEprParam(), ResultSet.class);
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if ((rsIn == null)) { throw new MSROException("EprParam (" + getEprParam() + ") not found in ENV"); }
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int countAll = 0;
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int countOk = 0;
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int partial = 0;
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Map<Integer, Integer> errors = Maps.newHashMap();
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log.info("Publisher endpoint: " + getPublisherEndpoint());
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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("DropDatasourceApisPartitionInfo endpoint: " + getDropDatasourceApisPartitionInfoEndpoint());
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CloseableHttpResponse responseDDAPIPOST = null;
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try {
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HttpPost post = new HttpPost(getDropDatasourceApisPartitionInfoEndpoint());
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List<NameValuePair> params = Lists.newArrayList();
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String datasourceInterfaceValue = getDatasourceInterface();
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log.info("drop datasourceApis partition info for datasourceInterface " + datasourceInterfaceValue);
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params.add(new BasicNameValuePair("datasourceApi", datasourceInterfaceValue));
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UrlEncodedFormEntity ent = new UrlEncodedFormEntity(params, "UTF-8");
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post.setEntity(ent);
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responseDDAPIPOST = client.execute(post);
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int statusCode = responseDDAPIPOST.getStatusLine().getStatusCode();
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switch (statusCode) {
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case 200:
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log.info("drop datasourceApis partition info completed");
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break;
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default:
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log.error("error dropping datasourceApis partition info " + statusCode + ": " + responseDDAPIPOST.getStatusLine().getReasonPhrase());
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break;
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}
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} catch (ConnectException ce) {
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throw new MSROException("unable to connect to Publisher endpoint" + getPublishEndpoint());
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}
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catch (IOException e) {
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log.error("error feeding provenance ", e);
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}
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finally{
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if(responseDDAPIPOST != null) responseDDAPIPOST.close();
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}
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//need to slow down the producer to avoid OOM errors due to many tasks in the queue of the executor
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//see for example here: https://stackoverflow.com/questions/42108351/executorservice-giving-out-of-memory-error
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//let's stop and wait after submission of nLatch tasks
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boolean forceExit = false;
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for (String record : getResultSetClient().iter(rsIn, String.class)) {
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if(forceExit) break;
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countAll++;
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if(partial == nTasks) {
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log.debug("Waiting for tasks to complete before resubmitting to executor (countAll = "+countAll+") . . . ");
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log.debug("Getting replies");
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long startWait = System.currentTimeMillis();
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for(Future<Integer> res : resList){
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if(res.get() == 200) countOk++;
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if(res.get() == 400 || res.get() == 401 || res.get() == 402 | res.get() == 403 || res.get() == 404){
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executorService.shutdownNow();
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throw new MSROException("Client error "+ res.get());
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}
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}
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resList.clear();
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partial = 0;
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log.debug(". . . Ready to submit again after "+(System.currentTimeMillis() - startWait)+" ms" );
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}
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partial++;
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Future<Integer> res = executorService.submit( () -> {
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CloseableHttpResponse responsePPOST = null;
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try {
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HttpPost post = new HttpPost(getPublishEndpoint());
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List<NameValuePair> params = Lists.newArrayList();
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params.add(new BasicNameValuePair("record", record));
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UrlEncodedFormEntity ent = new UrlEncodedFormEntity(params, "UTF-8");
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post.setEntity(ent);
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responsePPOST = client.execute(post);
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int statusCode = responsePPOST.getStatusLine().getStatusCode();
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switch (statusCode) {
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case 200:
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return statusCode;
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default:
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log.error(responsePPOST.getStatusLine().getStatusCode() + ": " + responsePPOST.getStatusLine().getReasonPhrase());
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log.error("Source record causing error: " + record);
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errors.merge(statusCode, 1, Integer::sum);
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return statusCode;
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}
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} catch (ConnectException ce) {
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throw new MSROException("unable to connect to Publisher endpoint" + getPublishEndpoint());
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}
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catch (IOException e) {
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e.printStackTrace();
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errors.merge(-1, 1, Integer::sum);
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}
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finally{
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if(responsePPOST != null) responsePPOST.close();
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}
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return -1;
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});
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resList.add(res);
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}
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executorService.shutdown();
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//now let's wait for the results. We can block ourselves here: we have nothing else to do
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log.info("Waiting for responses");
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for(Future<Integer> res : resList){
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if(res.get() == 200) countOk++;
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}
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log.info(String.format("Got all responses. Ok responses: %s/%s", countOk, countAll));
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env.setAttribute(WorkflowsConstants.MAIN_LOG_PREFIX + "countOk", countOk);
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env.setAttribute(WorkflowsConstants.MAIN_LOG_PREFIX + "countAll", countAll);
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env.setAttribute(WorkflowsConstants.MAIN_LOG_PREFIX + "errorsMap", new Gson().toJson(errors));
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log.info("publishing completed");
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if (!errors.isEmpty()) {
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log.warn("Problems in publishing: "+countOk+"/"+countAll+" see error maps for details");
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}
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if(countAll == 0) {
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log.warn("0 resources to publish");
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}
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if (countOk > 0) {
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log.info("Feed provenance endpoint: " + getProvenanceFeedEndpoint());
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CloseableHttpResponse responsePFPOST = null;
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try {
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HttpPost post = new HttpPost(getProvenanceFeedEndpoint());
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List<NameValuePair> params = Lists.newArrayList();
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String datasourceInterfaceValue = getDatasourceInterface();
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log.info("feeding provenance for datasourceInterface " + datasourceInterfaceValue);
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params.add(new BasicNameValuePair("datasourceApi", datasourceInterfaceValue));
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String datasourceValue = getDatasource();
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log.info("feeding provenance for datasource " + datasourceValue);
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params.add(new BasicNameValuePair("datasource", datasourceValue));
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UrlEncodedFormEntity ent = new UrlEncodedFormEntity(params, "UTF-8");
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post.setEntity(ent);
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responsePFPOST = client.execute(post);
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int statusCode = responsePFPOST.getStatusLine().getStatusCode();
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switch (statusCode) {
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case 200:
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log.info("feed provenance completed");
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break;
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default:
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log.error("error feeding provenance " + responsePFPOST.getStatusLine().getStatusCode() + ": " + responsePFPOST.getStatusLine().getReasonPhrase());
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break;
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}
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} catch (ConnectException ce) {
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throw new MSROException("unable to connect to Publisher endpoint" + getPublishEndpoint());
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}
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catch (IOException e) {
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log.error("error feeding provenance ", e);
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}
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finally{
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if(responsePFPOST != null) responsePFPOST.close();
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client.close();
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cm.shutdown();
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}
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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 getPublishEndpoint() {
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return publisherEndpoint.concat("/publish");
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}
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private String getProvenanceFeedEndpoint() {
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return publisherEndpoint.concat("/feedProvenance");
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}
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private String getDropDatasourceApisPartitionInfoEndpoint() {
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return publisherEndpoint.concat("/dropDatasourceApiGraph");
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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 ResultSetClient getResultSetClient() {
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return resultSetClient;
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}
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public void setResultSetClient(final ResultSetClient resultSetClient) {
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this.resultSetClient = resultSetClient;
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}
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public String getEprParam() {
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return eprParam;
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}
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public void setEprParam(String eprParam) {
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this.eprParam = eprParam;
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}
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public String getDatasourceInterface() {
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return datasourceInterface;
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}
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public void setDatasourceInterface(String datasourceInterface) {
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this.datasourceInterface = datasourceInterface;
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}
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@Override
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protected void beforeStart(Token token) {
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token.setProgressProvider(new ResultsetProgressProvider(token.getEnv().getAttribute(getEprParam(), ResultSet.class), this.resultSetClient));
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}
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public String getDatasource() {
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return datasource;
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}
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public void setDatasource(String datasource) {
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this.datasource = datasource;
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}
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}
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