/*
* Copyright 2013 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.services.task.rule.impl;
import java.util.Map;
import org.jbpm.services.task.impl.TaskContentRegistry;
import org.jbpm.services.task.rule.RuleContextProvider;
import org.jbpm.services.task.rule.TaskRuleService;
import org.jbpm.services.task.rule.TaskServiceRequest;
import org.jbpm.services.task.utils.ContentMarshallerHelper;
import org.kie.api.KieBase;
import org.kie.api.runtime.KieSession;
import org.kie.api.task.model.Task;
import org.kie.api.task.model.User;
import org.kie.internal.task.api.ContentMarshallerContext;
import org.kie.internal.task.api.TaskModelProvider;
import org.kie.internal.task.api.model.ContentData;
import org.kie.internal.task.api.model.InternalOrganizationalEntity;
import org.kie.internal.task.exception.TaskException;
public class TaskRuleServiceImpl implements TaskRuleService {
private RuleContextProvider ruleContextProvider;
public TaskRuleServiceImpl() {
}
public TaskRuleServiceImpl(RuleContextProvider ruleContextProvider) {
this.ruleContextProvider = ruleContextProvider;
}
@Override
public void executeRules(Task task, String userId, Object params, String scope) throws TaskException {
KieBase ruleBase = ruleContextProvider.getKieBase(scope);
if (ruleBase != null) {
KieSession session = ruleBase.newKieSession();
Map<String, Object> globals = ruleContextProvider.getGlobals(scope);
if (globals != null) {
for (Map.Entry<String, Object> entry : globals.entrySet()) {
session.setGlobal(entry.getKey(), entry.getValue());
}
}
User user = TaskModelProvider.getFactory().newUser();
((InternalOrganizationalEntity) user).setId(userId);
TaskServiceRequest request = new TaskServiceRequest(scope, user, null);
session.setGlobal("request", request);
session.insert(task);
if (params != null) {
if (params instanceof ContentData) {
ContentMarshallerContext ctx = TaskContentRegistry.get().getMarshallerContext(task);
params = ContentMarshallerHelper.unmarshall(((ContentData) params).getContent(), ctx.getEnvironment(), ctx.getClassloader());
}
session.insert(params);
}
session.fireAllRules();
session.dispose();
if (!request.isAllowed()) {
StringBuilder error = new StringBuilder("Cannot perform operation " + scope + " :\n");
if (request.getReasons() != null) {
for (String reason : request.getReasons()) {
error.append( reason).append('\n');
}
}
throw request.getException(error.toString());
}
}
}
public RuleContextProvider getRuleContextProvider() {
return ruleContextProvider;
}
public void setRuleContextProvider(RuleContextProvider ruleContextProvider) {
this.ruleContextProvider = ruleContextProvider;
}
}