View Javadoc

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.integration.slicer;
18  
19  import java.io.IOException;
20  import java.rmi.RemoteException;
21  import java.util.List;
22  
23  import org.gwe.integration.slicer.model.ExecutableModel;
24  import org.gwe.utils.StringUtils;
25  import org.gwe.utils.cmd.ArgsList;
26  
27  /**
28   * @author Marco Ruiz
29   * @since Dec 18, 2007
30   */
31  public abstract class AbstractCLMProxyApp {
32  
33  	public static String ENV_SLICER_HOME = "SLICER_HOME";
34  	public static String PLUGINS_RELATIVE_DIR = "/lib/Slicer3/Plugins";
35  	
36  	private static Class[] classes = new Class[]{String.class};
37  	
38  	public static void main(String[] args) throws Exception {
39  		ArgsList argsList = new ArgsList(args);
40  		// First argument is the proxy application class name
41  		Class<? extends AbstractCLMProxyApp> proxyAppClass = (Class<? extends AbstractCLMProxyApp>) Class.forName(argsList.remove(0)); 
42  		proxyAppClassMain(proxyAppClass, argsList); 
43  	}
44  	
45  	protected static <PROXY_APP_TYPE extends AbstractCLMProxyApp> void proxyAppClassMain(Class<PROXY_APP_TYPE> proxyAppClass, List<String> argsList) throws Exception {
46  		// First argument is the proxy identifier
47  		PROXY_APP_TYPE proxyApp = proxyAppClass.getConstructor(classes).newInstance(argsList.remove(0));
48  		proxyAppMain(proxyApp, argsList); 
49  	}
50  
51  	protected static <PROXY_APP extends AbstractCLMProxyApp> void proxyAppMain(PROXY_APP proxyApp, List<String> argsList) {
52  		String[] args = argsList.toArray(new String[]{});
53  		try {
54  			ExecutableModel model = new ExecutableModel(null, null, null);
55  			model.loadArgs(args, false);
56  			if (model.isXMLSelected()) {
57  			    System.out.println(proxyApp.generateProxyXML());
58  	    	} else if (model.isLogoSelected()) {
59  	    	} else {
60  	    		try {
61  	    			System.out.println("CLMP invoked with args: " + StringUtils.getArrayAsStr(args));
62  					proxyApp.runProxyApp(args);
63  				} catch (RemoteException e) {
64  					// TODO: Somehow output error message to slicer user
65  				}
66  	    	}
67  		} catch (Exception e) {
68  			// TODO: Report problem executing a phase of this proxy app
69  			System.out.println("CLMP invoked with args: " + StringUtils.getArrayAsStr(args));
70  			e.printStackTrace();
71  		}
72  	}
73  
74  	public static String[] removeArgs(String[] args, int count) {
75  		String[] trimmedArgs = new String[args.length - count];
76  		for (int idx = count; idx < args.length; idx++) trimmedArgs[idx - count] = args[idx];
77  		return trimmedArgs;
78  	}
79  	
80  	protected String slicerHome;
81  	protected ExecutableModel xmlModel = null; // Optional
82  
83  	public AbstractCLMProxyApp() {
84  		this.slicerHome = System.getenv(ENV_SLICER_HOME);
85  	}
86  
87  	public String getPluginsDir() {
88  		return getPluginsDir(slicerHome);
89  	}
90  
91  	public String getPluginsDir(String slicerHomeDir) {
92  		return slicerHomeDir + PLUGINS_RELATIVE_DIR;
93  	}
94  
95  	public ExecutableModel getXmlModel() {
96      	return xmlModel;
97      }
98  
99  	public void setXmlModel(ExecutableModel xmlModel) {
100     	this.xmlModel = xmlModel;
101     }
102 
103 	public abstract String generateProxyXML() throws Exception;
104 
105 	public abstract String runProxyApp(String[] args) throws Exception;
106 
107 	protected String generateCLMErrorXML(IOException e) { return ""; }
108 }
109