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1   /*
2    * Copyright 2007-2008 the original author or authors.
3    * 
4    * Licensed under the Apache License, Version 2.0 (the "License");
5    * you may not use this file except in compliance with the License.
6    * You may obtain a copy of the License at
7    * 
8    *      http://www.apache.org/licenses/LICENSE-2.0
9    * 
10   * Unless required by applicable law or agreed to in writing, software
11   * distributed under the License is distributed on an "AS IS" BASIS,
12   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13   * See the License for the specific language governing permissions and
14   * limitations under the License.
15   */
16  
17  package org.gwe.persistence.model.order;
18  
19  import java.io.Serializable;
20  import java.util.ArrayList;
21  import java.util.List;
22  
23  import org.gwe.persistence.model.DaemonConfigDesc;
24  import org.gwe.persistence.model.JobInfo;
25  import org.gwe.persistence.model.live.OrderLive;
26  
27  /**
28   * @author Marco Ruiz
29   * @since Aug 23, 2007
30   */
31  public abstract class OrderDescriptor<DAEMON_REQUEST_PARAM_TYPE extends Serializable> implements Serializable {
32  
33  	protected DAEMON_REQUEST_PARAM_TYPE parameters = null;
34  
35  	protected Class<? extends DaemonRequest> daemonRequestClass = 
36  		(Class<? extends DaemonRequest>) OSCommandDaemonRequest.class;
37  
38  	public void setDaemonRequestClassName(String clazzName) throws ClassNotFoundException {
39  		setDaemonRequestClass((Class<? extends DaemonRequest<DAEMON_REQUEST_PARAM_TYPE>>) Class.forName(clazzName));
40  	}
41  
42  	public void setDaemonRequestClass(Class<? extends DaemonRequest<DAEMON_REQUEST_PARAM_TYPE>> daemonRequestClass) {
43  		this.daemonRequestClass = daemonRequestClass;
44  	}
45  
46  	public Class<? extends DaemonRequest> getDaemonRequestClass() {
47  		return daemonRequestClass;
48  	}
49  
50  	public void setParameters(DAEMON_REQUEST_PARAM_TYPE parameters) {
51  		this.parameters = parameters;
52  	}
53  
54  	public DAEMON_REQUEST_PARAM_TYPE getParameters() {
55  		return parameters;
56  	}
57  
58  	public final List<JobInfo> generateJobs(DaemonConfigDesc config) throws Exception {
59  		List<JobInfo> results =  new ArrayList<JobInfo>();
60  		
61  		int count = 1;
62  		for (JobDescriptor descriptor : generateJobDescriptors(config)) {
63  			if (descriptor != null) {
64  				try {
65  					DaemonRequest<DAEMON_REQUEST_PARAM_TYPE> daemonRequest = daemonRequestClass.newInstance();
66  					daemonRequest.setParameters(parameters);
67  					JobInfo job = new JobInfo(count++, descriptor, daemonRequest);
68  					results.add(job);
69  				} catch (InstantiationException e) {
70  				} catch (IllegalAccessException e) {
71  				}
72  			}
73  		}
74  		return results;
75  	}
76  	
77  	public abstract List<String> getVarNames();
78  
79  	public abstract List<JobDescriptor> generateJobDescriptors(DaemonConfigDesc config) throws Exception;
80  	
81      public abstract List<String> generateCommands(DaemonConfigDesc config) throws Exception;
82  
83  	public abstract void initExecution(OrderLive orderRC);
84  	
85  	public abstract void finalizeExecution(OrderLive orderRC);
86  }
87