org.jbpm.compiler.canonical.EventNodeVisitor Maven / Gradle / Ivy
/*
* Copyright 2019 Red Hat, Inc. and/or its affiliates.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.jbpm.compiler.canonical;
import java.text.MessageFormat;
import java.util.Map;
import com.github.javaparser.ast.expr.LongLiteralExpr;
import com.github.javaparser.ast.expr.StringLiteralExpr;
import com.github.javaparser.ast.stmt.BlockStmt;
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 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.Metadata.MESSAGE_TYPE;
import static org.jbpm.ruleflow.core.Metadata.TRIGGER_REF;
import static org.jbpm.ruleflow.core.Metadata.TRIGGER_TYPE;
import static org.jbpm.ruleflow.core.factory.EventNodeFactory.METHOD_EVENT_TYPE;
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(), new LongLiteralExpr(node.getId())))
.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 (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))) {
Map nodeMetaData = node.getMetaData();
try {
TriggerMetaData triggerMetaData = new TriggerMetaData((String) nodeMetaData.get(TRIGGER_REF),
(String) nodeMetaData.get(TRIGGER_TYPE),
(String) nodeMetaData.get(MESSAGE_TYPE),
node.getVariableName(),
String.valueOf(node.getId())).validate();
metadata.addTrigger(triggerMetaData);
} catch (IllegalArgumentException e) {
throw new IllegalArgumentException(
MessageFormat.format(
"Invalid parameters for event node \"{0}\": {1}",
node.getName(),
e.getMessage()), e);
}
}
visitMetaData(node.getMetaData(), body, getNodeId(node));
body.addStatement(getDoneMethod(getNodeId(node)));
}
}