
org.jbpm.compiler.canonical.EventNodeVisitor Maven / Gradle / Ivy
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package org.jbpm.compiler.canonical;
import java.text.MessageFormat;
import org.jbpm.process.core.context.variable.Variable;
import org.jbpm.process.core.context.variable.VariableScope;
import org.jbpm.ruleflow.core.factory.EventNodeFactory;
import org.jbpm.workflow.core.node.EventNode;
import com.github.javaparser.ast.expr.StringLiteralExpr;
import com.github.javaparser.ast.stmt.BlockStmt;
import static org.jbpm.ruleflow.core.Metadata.EVENT_TYPE;
import static org.jbpm.ruleflow.core.Metadata.EVENT_TYPE_MESSAGE;
import static org.jbpm.ruleflow.core.Metadata.EVENT_TYPE_SIGNAL;
import static org.jbpm.ruleflow.core.factory.EventNodeFactory.METHOD_EVENT_TYPE;
import static org.jbpm.ruleflow.core.factory.EventNodeFactory.METHOD_INPUT_VARIABLE_NAME;
import static org.jbpm.ruleflow.core.factory.EventNodeFactory.METHOD_VARIABLE_NAME;
public class EventNodeVisitor extends AbstractNodeVisitor {
@Override
protected String getNodeKey() {
return "eventNode";
}
@Override
public void visitNode(String factoryField, EventNode node, BlockStmt body, VariableScope variableScope, ProcessMetaData metadata) {
body.addStatement(getAssignedFactoryMethod(factoryField, EventNodeFactory.class, getNodeId(node), getNodeKey(), getWorkflowElementConstructor(node.getId())));
visitMetaData(node.getMetaData(), body, getNodeId(node));
body.addStatement(getNameMethod(node, "Event"))
.addStatement(getFactoryMethod(getNodeId(node), METHOD_EVENT_TYPE, new StringLiteralExpr(node.getType())));
Variable variable = null;
if (node.getVariableName() != null) {
body.addStatement(getFactoryMethod(getNodeId(node), METHOD_VARIABLE_NAME, new StringLiteralExpr(node.getVariableName())));
variable = variableScope.findVariable(node.getVariableName());
}
if (node.getInputVariableName() != null) {
body.addStatement(getFactoryMethod(getNodeId(node), METHOD_INPUT_VARIABLE_NAME, new StringLiteralExpr(node.getInputVariableName())));
}
if (EVENT_TYPE_SIGNAL.equals(node.getMetaData(EVENT_TYPE))) {
metadata.addSignal(node.getType(), variable != null ? variable.getType().getStringType() : null);
} else if (EVENT_TYPE_MESSAGE.equals(node.getMetaData(EVENT_TYPE))) {
try {
metadata.addTrigger(TriggerMetaData.of(node, node.getVariableName()));
} catch (IllegalArgumentException e) {
throw new IllegalArgumentException(
MessageFormat.format(
"Invalid parameters for event node \"{0}\": {1}",
node.getName(),
e.getMessage()),
e);
}
}
addNodeMappings(node, body, getNodeId(node));
body.addStatement(getDoneMethod(getNodeId(node)));
}
}
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