01: /*
02: * (c) Copyright 2007 by Volker Bergmann. All rights reserved.
03: *
04: * Redistribution and use in source and binary forms, with or without
05: * modification, is permitted under the terms of the
06: * GNU General Public License.
07: *
08: * For redistributing this software or a derivative work under a license other
09: * than the GPL-compatible Free Software License as defined by the Free
10: * Software Foundation or approved by OSI, you must first obtain a commercial
11: * license to this software product from Volker Bergmann.
12: *
13: * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
14: * WITHOUT A WARRANTY OF ANY KIND. ALL EXPRESS OR IMPLIED CONDITIONS,
15: * REPRESENTATIONS AND WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF
16: * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT, ARE
17: * HEREBY EXCLUDED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
18: * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
19: * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
20: * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
21: * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
22: * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
23: * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
24: * POSSIBILITY OF SUCH DAMAGE.
25: */
26:
27: package org.databene.benerator.main;
28:
29: import java.util.Map;
30:
31: import org.databene.commons.Context;
32: import org.databene.commons.ConversionException;
33: import org.databene.commons.Converter;
34: import org.databene.commons.collection.MapEntry;
35: import org.databene.commons.mutator.AnyMutator;
36:
37: /**
38: * Converts Map entries by first applying a preprocessor to the value,
39: * then (if possible) converting the result to a number or boolean.<br/><br/>
40: * Created: 01.02.2008 14:40:43
41: * @author Volker Bergmann
42: */
43: public class DefaultEntryConverter implements
44: Converter<Map.Entry, Map.Entry> {
45: // TODO v0.4.2 make it more general and move to commons
46: private Context context;
47: private Converter<String, String> preprocessor;
48: private boolean putEntriesToContext;
49:
50: public DefaultEntryConverter(
51: Converter<String, String> preprocessor, Context context,
52: boolean putEntriesToContext) {
53: this .preprocessor = preprocessor;
54: this .context = context;
55: this .putEntriesToContext = putEntriesToContext;
56: }
57:
58: public Class<Map.Entry> getTargetType() {
59: return Map.Entry.class;
60: }
61:
62: public Map.Entry convert(Map.Entry entry)
63: throws ConversionException {
64: String key = String.valueOf(entry.getKey());
65: String sourceValue = String.valueOf(entry.getValue());
66: sourceValue = preprocessor.convert(sourceValue);
67: Object result = sourceValue;
68: if (isNumber(sourceValue))
69: result = Integer.parseInt(sourceValue);
70: else if ("false".equals(sourceValue.trim().toLowerCase()))
71: result = Boolean.FALSE;
72: else if ("true".equals(sourceValue.trim().toLowerCase()))
73: result = Boolean.TRUE;
74: if (putEntriesToContext)
75: AnyMutator.setValue(context, key, result, true);
76: return new MapEntry<String, Object>(key, result);
77: }
78:
79: // private helpers -------------------------------------------------------------------------------------------------
80:
81: private boolean isNumber(String text) {
82: try {
83: Integer.parseInt(text);
84: return true;
85: } catch (NumberFormatException e) {
86: return false;
87: }
88: }
89:
90: }
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