1 /*
2 * (c) Copyright 2006-2020 by rapiddweller GmbH & Volker Bergmann. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, is permitted under the terms of the
6 * GNU General Public License.
7 *
8 * For redistributing this software or a derivative work under a license other
9 * 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 rapiddweller GmbH & 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 com.rapiddweller.benerator.engine.expression;
28
29 import com.rapiddweller.benerator.engine.BeneratorContext;
30 import com.rapiddweller.common.Context;
31 import com.rapiddweller.script.Expression;
32 import com.rapiddweller.script.expression.ExpressionUtil;
33
34 import java.util.Locale;
35
36 /**
37 * Evaluates a string expression for a Locale string, if none is set, it picks Benerator's default Locale.<br/><br/>
38 * Created: 29.11.2010 15:30:37
39 *
40 * @author Volker Bergmann
41 * @since 0.6.4
42 */
43 public class BeneratorLocaleExpression implements Expression<Locale> {
44
45 private final Expression<String> provider;
46
47 /**
48 * Instantiates a new Benerator locale expression.
49 *
50 * @param codeProvider the code provider
51 */
52 public BeneratorLocaleExpression(Expression<String> codeProvider) {
53 this.provider = codeProvider;
54 }
55
56 @Override
57 public Locale evaluate(Context context) {
58 String localeSpec = ExpressionUtil.evaluate(provider, context);
59 return (localeSpec != null ? new Locale(localeSpec) : ((BeneratorContext) context).getDefaultLocale());
60 }
61
62 @Override
63 public boolean isConstant() {
64 return (provider == null || provider.isConstant());
65 }
66
67 }