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 import org.argeo.api.cms.CmsSession;
  10
  11 /** Utilities and routines around {@link Content}. */
  12 public class ContentUtils {
  13         public static void traverse(Content content, BiConsumer<Content, Integer> doIt) {
  14                 traverse(content, doIt, (Integer) null);
  15         }
  16
  17         public static void traverse(Content content, BiConsumer<Content, Integer> doIt, Integer maxDepth) {
  18                 doTraverse(content, doIt, 0, maxDepth);
  19         }
  20
  21         private static void doTraverse(Content content, BiConsumer<Content, Integer> doIt, int currentDepth,
  22                         Integer maxDepth) {
  23                 doIt.accept(content, currentDepth);
  24                 if (maxDepth != null && currentDepth == maxDepth)
  25                         return;
  26                 int nextDepth = currentDepth + 1;
  27                 for (Content child : content) {
  28                         doTraverse(child, doIt, nextDepth, maxDepth);
  29                 }
  30         }
  31
  32         public static void print(Content content, PrintStream out, int depth, boolean printText) {
  33                 StringBuilder sb = new StringBuilder();
  34                 for (int i = 0; i < depth; i++) {
  35                         sb.append("  ");
  36                 }
  37                 String prefix = sb.toString();
  38                 out.println(prefix + content.getName());
  39                 for (QName key : content.keySet()) {
  40                         out.println(prefix + " " + key + "=" + content.get(key));
  41                 }
  42                 if (printText) {
  43                         if (content.hasText()) {
  44                                 out.println("<![CDATA[" + content.getText().trim() + "]]>");
  45                         }
  46                 }
  47         }
  48
  49 //      public static <T> boolean isString(T t) {
  50 //              return t instanceof String;
  51 //      }
  52
  53         /**
  54          * Split a path (with '/' separator) in an array of length 2, the first part
  55          * being the parent path (which could be either absolute or relative), the
  56          * second one being the last segment, (guaranteed to be with '/').
  57          */
  58         public static String[] getParentPath(String path) {
  59                 int parentIndex = path.lastIndexOf('/');
  60                 // TODO make it more robust
  61                 return new String[] { parentIndex != 0 ? path.substring(0, parentIndex) : "/",
  62                                 path.substring(parentIndex + 1) };
  63         }
  64
  65         /** Singleton. */
  66         private ContentUtils() {
  67
  68         }
  69
  70 }