org.argeo.cms/src/org/argeo/cms/acr/ContentUtils.java

   1 package org.argeo.cms.acr;
   2
   3 import java.io.PrintStream;
   4 import java.util.function.BiConsumer;
   5
   6 import javax.xml.namespace.QName;
   7
   8 import org.argeo.api.acr.Content;
   9
  10 /** Utilities and routines around {@link Content}. */
  11 public class ContentUtils {
  12         public static void traverse(Content content, BiConsumer<Content, Integer> doIt) {
  13                 traverse(content, doIt, (Integer) null);
  14         }
  15
  16         public static void traverse(Content content, BiConsumer<Content, Integer> doIt, Integer maxDepth) {
  17                 doTraverse(content, doIt, 0, maxDepth);
  18         }
  19
  20         private static void doTraverse(Content content, BiConsumer<Content, Integer> doIt, int currentDepth,
  21                         Integer maxDepth) {
  22                 doIt.accept(content, currentDepth);
  23                 if (maxDepth != null && currentDepth == maxDepth)
  24                         return;
  25                 int nextDepth = currentDepth + 1;
  26                 for (Content child : content) {
  27                         doTraverse(child, doIt, nextDepth, maxDepth);
  28                 }
  29         }
  30
  31         public static void print(Content content, PrintStream out, int depth, boolean printText) {
  32                 StringBuilder sb = new StringBuilder();
  33                 for (int i = 0; i < depth; i++) {
  34                         sb.append("  ");
  35                 }
  36                 String prefix = sb.toString();
  37                 out.println(prefix + content.getName());
  38                 for (QName key : content.keySet()) {
  39                         out.println(prefix + " " + key + "=" + content.get(key));
  40                 }
  41                 if (printText) {
  42                         if (content.hasText()) {
  43                                 out.println("<![CDATA[" + content.getText().trim() + "]]>");
  44                         }
  45                 }
  46         }
  47
  48 //      public static <T> boolean isString(T t) {
  49 //              return t instanceof String;
  50 //      }
  51
  52         /**
  53          * Split a path (with '/' separator) in an array of length 2, the first part
  54          * being the parent path (which could be either absolute or relative), the
  55          * second one being the last segment, (guaranteed to be with '/').
  56          */
  57         public static String[] getParentPath(String path) {
  58                 int parentIndex = path.lastIndexOf('/');
  59                 // TODO make it more robust
  60                 return new String[] { parentIndex != 0 ? path.substring(0, parentIndex) : "/",
  61                                 path.substring(parentIndex + 1) };
  62         }
  63
  64         /** Singleton. */
  65         private ContentUtils() {
  66
  67         }
  68
  69 }