| /** |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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.apache.falcon.lifecycle.engine.oozie; |
| |
| import org.apache.commons.lang3.StringUtils; |
| import org.apache.falcon.FalconException; |
| import org.apache.falcon.lifecycle.AbstractPolicyBuilderFactory; |
| import org.apache.falcon.lifecycle.PolicyBuilder; |
| import org.apache.falcon.util.ReflectionUtils; |
| import org.apache.falcon.util.StartupProperties; |
| |
| import java.util.HashMap; |
| import java.util.Map; |
| |
| /** |
| * Builds feed lifecycle policies for Oozie workflow engine. |
| */ |
| public class OoziePolicyBuilderFactory extends AbstractPolicyBuilderFactory { |
| |
| private static Map<String, PolicyBuilder> registry = new HashMap<>(); |
| |
| static { |
| String builders = StartupProperties.get().getProperty("falcon.feed.lifecycle.policy.builders", ""); |
| if (StringUtils.isNotBlank(builders)) { |
| for (String builder : builders.split(",")) { |
| try { |
| PolicyBuilder policyBuilder = ReflectionUtils.getInstanceByClassName(builder); |
| registry.put(policyBuilder.getPolicyName(), policyBuilder); |
| } catch (FalconException e) { |
| throw new RuntimeException("Couldn't load builder for " + builder.getClass().getSimpleName(), e); |
| } |
| } |
| } |
| } |
| |
| @Override |
| public PolicyBuilder getPolicyBuilder(String policyName) throws FalconException { |
| if (registry.containsKey(policyName)) { |
| return registry.get(policyName); |
| } |
| throw new FalconException("Couldn't find builder for policy " + policyName); |
| } |
| } |