content: /*
   ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~
   ~                                                                               ~
   ~ The MIT License (MIT)                                                         ~
   ~                                                                               ~
   ~ Copyright (c) 2015-2025 miaixz.org and other contributors.                    ~
   ~                                                                               ~
   ~ Permission is hereby granted, free of charge, to any person obtaining a copy  ~
   ~ of this software and associated documentation files (the "Software"), to deal ~
   ~ in the Software without restriction, including without limitation the rights  ~
   ~ to use, copy, modify, merge, publish, distribute, sublicense, and/or sell     ~
   ~ copies of the Software, and to permit persons to whom the Software is         ~
   ~ furnished to do so, subject to the following conditions:                      ~
   ~                                                                               ~
   ~ The above copyright notice and this permission notice shall be included in    ~
   ~ all copies or substantial portions of the Software.                           ~
   ~                                                                               ~
   ~ THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR    ~
   ~ IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,      ~
   ~ FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE   ~
   ~ AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER        ~
   ~ LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, ~
   ~ OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN     ~
   ~ THE SOFTWARE.                                                                 ~
   ~                                                                               ~
   ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~
  */
  package org.miaixz.bus.image.galaxy.data;
  
  import java.util.Map;
  
  /**
   * @author Kimi Liu
   * @since Java 17+
   */
  public class UIDVisitor implements Visitor {
  
      private final Map<String, String> uidMap;
      private final Attributes modified;
      public int replaced;
      private int rootSeqTag;
  
      public UIDVisitor(Map<String, String> uidMap, Attributes modified) {
          this.uidMap = uidMap;
          this.modified = modified;
      }
  
      @Override
      public boolean visit(Attributes attrs, int tag, VR vr, Object val) {
          if (vr != VR.UI || val == Value.NULL) {
              if (attrs.isRoot())
                  rootSeqTag = vr == VR.SQ ? tag : 0;
              return true;
          }
  
          String[] ss;
          if (val instanceof byte[]) {
              ss = attrs.getStrings(tag);
              val = ss.length == 1 ? ss[0] : ss;
          }
          if (val instanceof String[]) {
              ss = (String[]) val;
              for (int i = 0, c = 0; i < ss.length; i++) {
                  String uid = uidMap.get(ss[i]);
                  if (uid != null) {
                      if (c++ == 0)
                          modified(attrs, tag, vr, ss.clone());
                      ss[i] = uid;
                      replaced++;
                  }
              }
          } else {
              String uid = uidMap.get(val);
              if (uid != null) {
                  modified(attrs, tag, vr, val);
                  attrs.setString(tag, VR.UI, uid);
                  replaced++;
              }
          }
          return true;
      }
  
      private void modified(Attributes attrs, int tag, VR vr, Object val) {
          if (modified == null)
              return;
  
          if (attrs.isRoot()) {
              modified.setValue(tag, vr, val);
          } else if (!modified.contains(rootSeqTag)) {
              Sequence src = attrs.getRoot().getSequence(rootSeqTag);
              Sequence dst = modified.newSequence(rootSeqTag, src.size());
              for (Attributes item : src) {
                  dst.add(new Attributes(item));
              }
          }
      }
  
  }
  