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package eu.dnetlib.msro.workflows.nodes;
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import java.util.concurrent.ExecutorService;
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import java.util.concurrent.Executors;
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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 org.apache.commons.logging.Log;
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import org.apache.commons.logging.LogFactory;
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public abstract class AsyncJobNode extends ProcessNode {
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/**
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* logger.
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*/
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private static final Log log = LogFactory.getLog(AsyncJobNode.class);
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private final ExecutorService executor = Executors.newCachedThreadPool();
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@Override
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public final void execute(final Token token) {
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log.info("executing async node");
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executor.execute(new Runnable() {
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@Override
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public void run() {
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try {
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log.debug("START NODE: " + getBeanName());
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beforeStart(token);
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String arc = execute(token.getEnv());
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beforeCompleted(token);
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log.debug("END NODE (SUCCESS): " + getBeanName());
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token.setNextArc(arc);
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token.release();
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} catch (Throwable e) {
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log.error("got exception while executing workflow node", e);
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log.debug("END NODE (FAILED): " + getBeanName());
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beforeFailed(token);
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token.releaseAsFailed(e);
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}
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}
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});
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}
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abstract protected String execute(final Env env) throws Exception;
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protected void beforeStart(final Token token) {
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}
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protected void beforeCompleted(final Token token) {
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}
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protected void beforeFailed(final Token token) {
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}
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}
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