org.jbpm.process.builder.MultiConditionalSequenceFlowNodeBuilder Maven / Gradle / Ivy
/*
* Copyright 2017 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.process.builder;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;
import org.drools.compiler.compiler.ReturnValueDescr;
import org.kie.api.definition.process.Connection;
import org.kie.api.definition.process.Node;
import org.kie.api.definition.process.Process;
import org.drools.compiler.lang.descr.ProcessDescr;
import org.jbpm.process.builder.dialect.ProcessDialect;
import org.jbpm.process.builder.dialect.ProcessDialectRegistry;
import org.jbpm.process.instance.impl.ReturnValueConstraintEvaluator;
import org.jbpm.process.instance.impl.RuleConstraintEvaluator;
import org.jbpm.workflow.core.Constraint;
import org.jbpm.workflow.core.impl.ConnectionRef;
import org.jbpm.workflow.core.impl.ConstraintImpl;
import org.jbpm.workflow.core.impl.NodeImpl;
import org.jbpm.workflow.core.node.Split;
public class MultiConditionalSequenceFlowNodeBuilder implements ProcessNodeBuilder {
public void build(Process process, ProcessDescr processDescr,
ProcessBuildContext context, Node node) {
Map constraints = ((NodeImpl) node).getConstraints();
// exclude split as it is handled with separate builder and nodes with non conditional sequence flows
if (node instanceof Split || constraints.size() == 0) {
return;
}
// we need to clone the map, so we can update the original while iterating.
Map map = new HashMap( constraints );
for ( Iterator> it = map.entrySet().iterator(); it.hasNext(); ) {
Map.Entry entry = it.next();
ConnectionRef connection = entry.getKey();
ConstraintImpl constraint = (ConstraintImpl) entry.getValue();
Connection outgoingConnection = null;
for (Connection out: ((NodeImpl) node).getDefaultOutgoingConnections()) {
if (out.getToType().equals(connection.getToType())
&& out.getTo().getId() == connection.getNodeId()) {
outgoingConnection = out;
}
}
if (outgoingConnection == null) {
throw new IllegalArgumentException("Could not find outgoing connection");
}
if ( "rule".equals( constraint.getType() )) {
RuleConstraintEvaluator ruleConstraint = new RuleConstraintEvaluator();
ruleConstraint.setDialect( constraint.getDialect() );
ruleConstraint.setName( constraint.getName() );
ruleConstraint.setPriority( constraint.getPriority() );
ruleConstraint.setDefault( constraint.isDefault() );
((NodeImpl) node).setConstraint( outgoingConnection, ruleConstraint );
} else if ( "code".equals( constraint.getType() ) ) {
ReturnValueConstraintEvaluator returnValueConstraint = new ReturnValueConstraintEvaluator();
returnValueConstraint.setDialect( constraint.getDialect() );
returnValueConstraint.setName( constraint.getName() );
returnValueConstraint.setPriority( constraint.getPriority() );
returnValueConstraint.setDefault( constraint.isDefault() );
((NodeImpl) node).setConstraint( outgoingConnection, returnValueConstraint );
ReturnValueDescr returnValueDescr = new ReturnValueDescr();
returnValueDescr.setText( constraint.getConstraint() );
returnValueDescr.setResource(processDescr.getResource());
ProcessDialect dialect = ProcessDialectRegistry.getDialect( constraint.getDialect() );
dialect.getReturnValueEvaluatorBuilder().build( context, returnValueConstraint, returnValueDescr, (NodeImpl) node );
}
}
}
}