Mercurial > dive4elements > river
comparison artifacts/src/main/java/org/dive4elements/river/artifacts/common/AbstractResultType.java @ 8999:e3b3ce32c825
Work on uinfo
| author | gernotbelger |
|---|---|
| date | Thu, 12 Apr 2018 19:15:42 +0200 |
| parents | |
| children | 23945061daec |
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| 8998:c38098b15427 | 8999:e3b3ce32c825 |
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| 1 /** Copyright (C) 2017 by Bundesanstalt für Gewässerkunde | |
| 2 * Software engineering by | |
| 3 * Björnsen Beratende Ingenieure GmbH | |
| 4 * Dr. Schumacher Ingenieurbüro für Wasser und Umwelt | |
| 5 * | |
| 6 * This file is Free Software under the GNU AGPL (>=v3) | |
| 7 * and comes with ABSOLUTELY NO WARRANTY! Check out the | |
| 8 * documentation coming with Dive4Elements River for details. | |
| 9 */ | |
| 10 package org.dive4elements.river.artifacts.common; | |
| 11 | |
| 12 import java.text.NumberFormat; | |
| 13 import java.util.HashMap; | |
| 14 import java.util.Locale; | |
| 15 import java.util.Map; | |
| 16 | |
| 17 import org.apache.commons.lang.StringUtils; | |
| 18 import org.dive4elements.artifacts.CallContext; | |
| 19 import org.dive4elements.artifacts.CallMeta; | |
| 20 import org.dive4elements.river.artifacts.resources.Resources; | |
| 21 | |
| 22 /** | |
| 23 * @author Domenico Nardi Tironi | |
| 24 */ | |
| 25 public abstract class AbstractResultType implements IResultType { | |
| 26 | |
| 27 /* Cache for formatters because Formatter will always create new formats (which is very expensive) */ | |
| 28 private final Map<Locale, NumberFormat> formatters = new HashMap<>(); | |
| 29 | |
| 30 private final String unit; | |
| 31 | |
| 32 private final String csvHeader; | |
| 33 | |
| 34 private final String pdfHeader; | |
| 35 | |
| 36 protected AbstractResultType(final String unit, final String csvHeader, final String pdfHeader) { | |
| 37 this.unit = unit; | |
| 38 this.csvHeader = csvHeader; | |
| 39 this.pdfHeader = pdfHeader; | |
| 40 | |
| 41 } | |
| 42 | |
| 43 @Override | |
| 44 public abstract String exportValue(final CallContext context, final Object value); | |
| 45 | |
| 46 protected final String exportStringValue(final Object value) { | |
| 47 | |
| 48 if (value == null) | |
| 49 return StringUtils.EMPTY; | |
| 50 | |
| 51 if (!(value instanceof String)) | |
| 52 throw new IllegalStateException(); | |
| 53 | |
| 54 return (String) value; | |
| 55 } | |
| 56 | |
| 57 @Override | |
| 58 public final double asDouble(final Object value) { | |
| 59 if (value == null) | |
| 60 return Double.NaN; | |
| 61 | |
| 62 if (!(value instanceof Number)) | |
| 63 throw new IllegalStateException(); | |
| 64 | |
| 65 final Number number = (Number) value; | |
| 66 return number.doubleValue(); | |
| 67 } | |
| 68 | |
| 69 protected final String exportDoubleValue(final CallContext context, final double value) { | |
| 70 if (Double.isNaN(value)) | |
| 71 return StringUtils.EMPTY; | |
| 72 | |
| 73 final NumberFormat formatter = getFormatter(context); | |
| 74 return formatter.format(value); | |
| 75 } | |
| 76 | |
| 77 private NumberFormat getFormatter(final CallContext context) { | |
| 78 final CallMeta meta = context.getMeta(); | |
| 79 final Locale locale = Resources.getLocale(meta); | |
| 80 | |
| 81 if (!this.formatters.containsKey(locale)) | |
| 82 this.formatters.put(locale, createFormatter(context)); | |
| 83 | |
| 84 return this.formatters.get(locale); | |
| 85 } | |
| 86 | |
| 87 protected abstract NumberFormat createFormatter(CallContext context); | |
| 88 | |
| 89 public final String getCsvHeader() { | |
| 90 return this.csvHeader; | |
| 91 } | |
| 92 | |
| 93 public final String getCsvHeader(final CallMeta meta) { | |
| 94 return Resources.getMsg(meta, this.csvHeader, this.csvHeader); | |
| 95 } | |
| 96 | |
| 97 public final String getPdfHeader(final CallMeta meta) { | |
| 98 return Resources.getMsg(meta, this.pdfHeader, this.pdfHeader); | |
| 99 } | |
| 100 | |
| 101 public final String getUnit() { | |
| 102 return this.unit; | |
| 103 } | |
| 104 } |