Mercurial > dive4elements > river
comparison flys-artifacts/src/main/java/de/intevation/flys/exports/AbstractExporter.java @ 445:a7947972fdeb
Added a new class that supports formatters for different types of data.
flys-artifacts/trunk@1937 c6561f87-3c4e-4783-a992-168aeb5c3f6f
| author | Ingo Weinzierl <ingo.weinzierl@intevation.de> |
|---|---|
| date | Tue, 17 May 2011 14:22:27 +0000 |
| parents | e0fec407a280 |
| children | 45cd58a2a2bb |
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| 444:932a5e3c7fa1 | 445:a7947972fdeb |
|---|---|
| 1 package de.intevation.flys.exports; | 1 package de.intevation.flys.exports; |
| 2 | 2 |
| 3 import java.io.IOException; | 3 import java.io.IOException; |
| 4 import java.io.OutputStream; | 4 import java.io.OutputStream; |
| 5 import java.io.OutputStreamWriter; | 5 import java.io.OutputStreamWriter; |
| 6 import java.text.NumberFormat; | |
| 7 import java.util.Locale; | |
| 8 | 6 |
| 9 import org.w3c.dom.Document; | 7 import org.w3c.dom.Document; |
| 10 | 8 |
| 11 import org.apache.log4j.Logger; | 9 import org.apache.log4j.Logger; |
| 12 | 10 |
| 13 import au.com.bytecode.opencsv.CSVWriter; | 11 import au.com.bytecode.opencsv.CSVWriter; |
| 14 | 12 |
| 15 import de.intevation.artifacts.Artifact; | 13 import de.intevation.artifacts.Artifact; |
| 16 import de.intevation.artifacts.CallContext; | 14 import de.intevation.artifacts.CallContext; |
| 15 | |
| 16 import de.intevation.artifacts.common.ArtifactNamespaceContext; | |
| 17 import de.intevation.artifacts.common.utils.XMLUtils; | |
| 17 | 18 |
| 18 import de.intevation.flys.artifacts.resources.Resources; | 19 import de.intevation.flys.artifacts.resources.Resources; |
| 19 | 20 |
| 20 | 21 |
| 21 /** | 22 /** |
| 37 public static final String DEFAULT_CSV_CHARSET = "UTF-8"; | 38 public static final String DEFAULT_CSV_CHARSET = "UTF-8"; |
| 38 | 39 |
| 39 /** The default separator for the CSV export.*/ | 40 /** The default separator for the CSV export.*/ |
| 40 public static final char DEFAULT_CSV_SEPARATOR = ','; | 41 public static final char DEFAULT_CSV_SEPARATOR = ','; |
| 41 | 42 |
| 43 /** XPath that points to the desired export facet.*/ | |
| 44 public static final String XPATH_FACET = "/art:action/@art:type"; | |
| 45 | |
| 42 | 46 |
| 43 /** The document of the incoming out() request.*/ | 47 /** The document of the incoming out() request.*/ |
| 44 protected Document request; | 48 protected Document request; |
| 45 | 49 |
| 46 /** The output stream where the data should be written to.*/ | 50 /** The output stream where the data should be written to.*/ |
| 139 * @return true, if <i>facet</i> is valid, otherwise false. | 143 * @return true, if <i>facet</i> is valid, otherwise false. |
| 140 */ | 144 */ |
| 141 protected boolean isFacetValid(String facet) { | 145 protected boolean isFacetValid(String facet) { |
| 142 logger.debug("AbstractExporter.isFacetValid"); | 146 logger.debug("AbstractExporter.isFacetValid"); |
| 143 | 147 |
| 144 if (facet == null || facet.length() == 0) { | 148 String thisFacet = getFacet(); |
| 149 | |
| 150 if (thisFacet == null || thisFacet.length() == 0) { | |
| 145 return false; | 151 return false; |
| 146 } | 152 } |
| 147 else if (this.facet == null || this.facet.length() == 0) { | 153 else if (facet == null || facet.length() == 0) { |
| 148 logger.debug("Set the facet of this export: " + facet); | 154 return false; |
| 149 this.facet = facet; | |
| 150 | |
| 151 return true; | |
| 152 } | 155 } |
| 153 else { | 156 else { |
| 154 return this.facet.equals(facet); | 157 return thisFacet.equals(facet); |
| 155 } | 158 } |
| 156 } | 159 } |
| 157 | 160 |
| 161 | |
| 162 /** | |
| 163 * Returns the name of the desired facet. | |
| 164 * | |
| 165 * @return the name of the desired facet. | |
| 166 */ | |
| 167 protected String getFacet() { | |
| 168 if (facet == null) { | |
| 169 facet = getFacetFromRequest(); | |
| 170 } | |
| 171 | |
| 172 return facet; | |
| 173 } | |
| 174 | |
| 175 | |
| 176 /** | |
| 177 * Extracts the name of the requested facet from request document. | |
| 178 * | |
| 179 * @return the name of the requested facet. | |
| 180 */ | |
| 181 protected String getFacetFromRequest() { | |
| 182 return XMLUtils.xpathString( | |
| 183 request, XPATH_FACET, ArtifactNamespaceContext.INSTANCE); | |
| 184 } | |
| 158 | 185 |
| 159 | 186 |
| 160 protected String msg(String key, String def) { | 187 protected String msg(String key, String def) { |
| 161 return Resources.getMsg(context.getMeta(), key, def); | 188 return Resources.getMsg(context.getMeta(), key, def); |
| 162 } | 189 } |
| 179 | 206 |
| 180 writeCSVData(writer); | 207 writeCSVData(writer); |
| 181 | 208 |
| 182 writer.close(); | 209 writer.close(); |
| 183 } | 210 } |
| 184 | |
| 185 | |
| 186 protected NumberFormat getFormatter(int min, int max) { | |
| 187 Locale locale = Resources.getLocale(context.getMeta()); | |
| 188 NumberFormat nf = NumberFormat.getInstance(locale); | |
| 189 | |
| 190 nf.setMaximumFractionDigits(max); | |
| 191 nf.setMinimumFractionDigits(min); | |
| 192 | |
| 193 return nf; | |
| 194 } | |
| 195 } | 211 } |
| 196 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 : | 212 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 : |