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package eu.dnetlib.msro.workflows.nodes;
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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 com.googlecode.sarasvati.Engine;
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import com.googlecode.sarasvati.NodeToken;
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import eu.dnetlib.msro.workflows.util.WorkflowsConstants;
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public abstract class SimpleJobNode extends SarasvatiJobNode {
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private static final Log log = LogFactory.getLog(SarasvatiJobNode.class);
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@Override
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public final void execute(final Engine engine, final NodeToken token) {
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super.execute(engine, token);
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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);
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beforeCompleted(token);
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log.debug("END NODE (SUCCESS): " + getBeanName());
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engine.complete(token, arc);
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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.getEnv().setAttribute(WorkflowsConstants.SYSTEM_HAS_FAILED, true);
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token.getEnv().setAttribute(WorkflowsConstants.SYSTEM_ERROR, e.getMessage());
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engine.complete(token, "failed");
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}
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}
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abstract protected String execute(final NodeToken token) throws Exception;
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protected void beforeStart(final NodeToken token) {
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// For optional overwrites
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}
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protected void beforeCompleted(final NodeToken token) {
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// For optional overwrites
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}
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protected void beforeFailed(final NodeToken token) {
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// For optional overwrites
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}
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}
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