1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
|
package de.lmu.ifi.dbs.elki.workflow;
/*
This file is part of ELKI:
Environment for Developing KDD-Applications Supported by Index-Structures
Copyright (C) 2015
Ludwig-Maximilians-Universität München
Lehr- und Forschungseinheit für Datenbanksysteme
ELKI Development Team
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
import java.util.ArrayList;
import java.util.List;
import de.lmu.ifi.dbs.elki.database.Database;
import de.lmu.ifi.dbs.elki.result.ResultHandler;
import de.lmu.ifi.dbs.elki.result.ResultHierarchy;
import de.lmu.ifi.dbs.elki.result.ResultWriter;
import de.lmu.ifi.dbs.elki.utilities.optionhandling.AbstractParameterizer;
import de.lmu.ifi.dbs.elki.utilities.optionhandling.OptionID;
import de.lmu.ifi.dbs.elki.utilities.optionhandling.parameterization.Parameterization;
import de.lmu.ifi.dbs.elki.utilities.optionhandling.parameters.ObjectListParameter;
/**
* The "output" step, where data is analyzed.
*
* @author Erich Schubert
* @since 0.4.0
*
* @apiviz.uses ResultHierarchy
* @apiviz.has ResultHandler
*/
public class OutputStep implements WorkflowStep {
/**
* Output handler.
*/
private List<ResultHandler> resulthandlers = null;
/**
* Constructor.
*
* @param resulthandlers Result handlers to use
*/
public OutputStep(List<ResultHandler> resulthandlers) {
super();
this.resulthandlers = resulthandlers;
}
/**
* Run the result handlers.
*
* @param hier Result to run on
* @param db Database
*/
public void runResultHandlers(ResultHierarchy hier, Database db) {
// Run result handlers
for(ResultHandler resulthandler : resulthandlers) {
Thread.currentThread().setName(resulthandler.toString());
resulthandler.processNewResult(hier, db);
}
}
/**
* Set the default handler to the {@link ResultWriter}.
*/
public static void setDefaultHandlerWriter() {
defaultHandlers = new ArrayList<>(1);
defaultHandlers.add(ResultWriter.class);
}
/**
* Set the default handler to the Batik addon visualizer, if available.
*/
@SuppressWarnings("unchecked")
public static void setDefaultHandlerVisualizer() {
defaultHandlers = new ArrayList<>(1);
Class<? extends ResultHandler> clz;
try {
clz = (Class<? extends ResultHandler>) ClassLoader.getSystemClassLoader().loadClass(//
"de.lmu.ifi.dbs.elki.result.AutomaticVisualization");
}
catch(ClassNotFoundException e) {
clz = ResultWriter.class;
}
defaultHandlers.add(clz);
}
protected static ArrayList<Class<? extends ResultHandler>> defaultHandlers = null;
/**
* Parameterization class.
*
* @author Erich Schubert
*
* @apiviz.exclude
*/
public static class Parameterizer extends AbstractParameterizer {
/**
* Output handlers.
*/
private List<ResultHandler> resulthandlers = null;
/**
* Parameter to specify the result handler classes.
*
* Key:
* <p>
* {@code -resulthandler}
* </p>
*/
public static final OptionID RESULT_HANDLER_ID = new OptionID("resulthandler", "Result handler class.");
/**
* OptionID for the application output file/folder.
*
* Key:
* <p>
* {@code -out}
* </p>
*/
public static final OptionID OUTPUT_ID = new OptionID("out", //
"Directory name (or name of an existing file) to write the obtained results in. " + //
"If this parameter is omitted, per default the output will sequentially be given to STDOUT.");
@Override
protected void makeOptions(Parameterization config) {
super.makeOptions(config);
// result handlers
final ObjectListParameter<ResultHandler> resultHandlerParam = new ObjectListParameter<>(RESULT_HANDLER_ID, ResultHandler.class);
if(defaultHandlers != null) {
resultHandlerParam.setDefaultValue(defaultHandlers);
}
if(config.grab(resultHandlerParam)) {
resulthandlers = resultHandlerParam.instantiateClasses(config);
}
}
@Override
protected OutputStep makeInstance() {
return new OutputStep(resulthandlers);
}
}
}
|
