org.argeo.cms.lib.json/src/org/argeo/cms/acr/json/AcrJsonUtils.java

   1 package org.argeo.cms.acr.json;
   2
   3 import javax.xml.namespace.QName;
   4
   5 import org.argeo.api.acr.Content;
   6 import org.argeo.api.acr.DName;
   7 import org.argeo.api.acr.NamespaceUtils;
   8 import org.argeo.api.acr.QNamed;
   9
  10 import jakarta.json.stream.JsonGenerator;
  11
  12 /** Utilities around ACR and the JSON format. */
  13 public class AcrJsonUtils {
  14         public static void writeAttr(JsonGenerator g, Content content, String attr) {
  15                 writeAttr(g, content, NamespaceUtils.parsePrefixedName(attr));
  16         }
  17
  18         public static void writeAttr(JsonGenerator g, Content content, QNamed attr) {
  19                 writeAttr(g, content, attr.qName());
  20         }
  21
  22         public static void writeAttr(JsonGenerator g, Content content, QName attr) {
  23                 // String value = content.attr(attr);
  24                 Object value = content.get(attr);
  25                 if (value != null) {
  26                         // TODO specify NamespaceContext
  27                         String key = NamespaceUtils.toPrefixedName(attr);
  28                         if (value instanceof Double v)
  29                                 g.write(key, v);
  30                         else if (value instanceof Long v)
  31                                 g.write(key, v);
  32                         else if (value instanceof Integer v)
  33                                 g.write(key, v);
  34                         else if (value instanceof Boolean v)
  35                                 g.write(key, v);
  36                         else
  37                                 g.write(key, value.toString());
  38                 }
  39         }
  40
  41         /** singleton */
  42         private AcrJsonUtils() {
  43         }
  44
  45 //      private final QName JCR_CREATED = NamespaceUtils.parsePrefixedName("jcr:created");
  46 //
  47 //      private final QName JCR_LAST_MODIFIED = NamespaceUtils.parsePrefixedName("jcr:lastModified");
  48
  49         public static void writeTimeProperties(JsonGenerator g, Content content) {
  50                         String creationDate = content.attr(DName.creationdate);
  51         //              if (creationDate == null)
  52         //                      creationDate = content.attr(JCR_CREATED);
  53                         if (creationDate != null)
  54                                 g.write(DName.creationdate.get(), creationDate);
  55                         String lastModified = content.attr(DName.getlastmodified);
  56         //              if (lastModified == null)
  57         //                      lastModified = content.attr(JCR_LAST_MODIFIED);
  58                         if (lastModified != null)
  59                                 g.write(DName.getlastmodified.get(), lastModified);
  60                 }
  61 }