/*
* 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.HashMap;
import java.util.Map;
import org.jbpm.services.task.rule.RuleContextProvider;
import org.jbpm.services.task.rule.TaskRuleService;
import org.kie.api.KieBase;
import org.kie.api.io.Resource;
import org.kie.api.io.ResourceType;
import org.kie.internal.builder.KnowledgeBuilder;
import org.kie.internal.builder.KnowledgeBuilderFactory;
import org.kie.internal.io.ResourceFactory;
public class RuleContextProviderImpl implements RuleContextProvider {
private static RuleContextProviderImpl INSTANCE = new RuleContextProviderImpl();
private RuleContextProviderImpl() {
initialize();
}
public static RuleContextProviderImpl get() {
return INSTANCE;
}
private static final String DEFAULT_ADD_TASK_RULES = "default-add-task.drl";
private static final String DEFAULT_COMPLETE_TASK_RULES = "default-complete-task.drl";
private Map<String, KieBase> kieBases = new HashMap<String, KieBase>();
private Map<String, Map<String, Object>> globals = new HashMap<String, Map<String,Object>>();
public void initialize() {
try {
Resource addTask = ResourceFactory.newClassPathResource(DEFAULT_ADD_TASK_RULES);
KnowledgeBuilder kbuilder = KnowledgeBuilderFactory.newKnowledgeBuilder();
kbuilder.add(addTask, ResourceType.DRL);
kieBases.put(TaskRuleService.ADD_TASK_SCOPE, kbuilder.newKnowledgeBase());
} catch (Exception e) {
}
try {
Resource completeTask = ResourceFactory.newClassPathResource(DEFAULT_COMPLETE_TASK_RULES);
KnowledgeBuilder kbuilder = KnowledgeBuilderFactory.newKnowledgeBuilder();
kbuilder.add(completeTask, ResourceType.DRL);
kieBases.put(TaskRuleService.COMPLETE_TASK_SCOPE, kbuilder.newKnowledgeBase());
} catch (Exception e) {
}
}
@Override
public KieBase getKieBase(String scope) {
return kieBases.get(scope);
}
@Override
public Map<String, Object> getGlobals(String scope) {
return globals.get(scope);
}
public void addGlobals(String scope, Map<String, Object> global) {
this.globals.put(scope, global);
}
@Override
public void addKieBase(String scope, KieBase kbase) {
this.kieBases.put(scope, kbase);
}
}