First draft of GCR API

[lgpl/argeo-commons.git] / org.argeo.api / src / org / argeo / api / gcr / Contents.java

diff --git a/org.argeo.api/src/org/argeo/api/gcr/Contents.java b/org.argeo.api/src/org/argeo/api/gcr/Contents.java
new file mode 100644 (file)
index 0000000..62b1e9b
--- /dev/null
+++ b/org.argeo.api/src/org/argeo/api/gcr/Contents.java
@@ -0,0 +1,44 @@
+package org.argeo.api.gcr;
+
+import java.io.PrintStream;
+import java.util.function.BiConsumer;
+
+public class Contents {
+       public static void traverse(Content content, BiConsumer<Content, Integer> doIt) {
+               traverse(content, doIt, 0);
+       }
+
+       public static void traverse(Content content, BiConsumer<Content, Integer> doIt, int currentDepth) {
+               doIt.accept(content, currentDepth);
+               int nextDepth = currentDepth + 1;
+               for (Content child : content) {
+                       traverse(child, doIt, nextDepth);
+               }
+       }
+
+       public static void print(Content content, PrintStream out, int depth, boolean printText) {
+               StringBuilder sb = new StringBuilder();
+               for (int i = 0; i < depth; i++) {
+                       sb.append("  ");
+               }
+               String prefix = sb.toString();
+               out.println(prefix + content.getName());
+               for (String key : content.keySet()) {
+                       out.println(prefix + " " + key + "=" + content.get(key));
+               }
+               if (printText) {
+                       if (content.hasText()) {
+                               out.println("<![CDATA[" + content.getText().trim() + "]]>");
+                       }
+               }
+       }
+
+       public static <T> boolean isString(T t) {
+               return t instanceof String;
+       }
+
+       /** Singleton. */
+       private Contents() {
+
+       }
+}