First commit, added all projects

2026-05-31 14:39:57 -04:00
commit d2930f7af5
247 changed files with 22376354 additions and 0 deletions
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+package graph;
+
+import java.util.ArrayDeque;
+import java.util.Deque;
+import java.util.TreeMap;
+
+import feature.StreetSegment;
+
+/**
+ * Permanent label manager backed by exact-value ordered buckets.
+ */
+public class PermanentLabelBuckets extends AbstractLabelManager implements PermanentLabelManager
+{
+  private TreeMap<Double, Deque<Integer>> buckets;
+
+  /**
+   * @param networkSize network size
+   */
+  public PermanentLabelBuckets(final int networkSize)
+  {
+    super(networkSize);
+    this.buckets = new TreeMap<Double, Deque<Integer>>();
+  }
+
+  @Override
+  public void adjustHeadValue(final StreetSegment segment)
+  {
+    if (segment == null)
+    {
+      return;
+    }
+
+    int headID = segment.getHead();
+    Label head = getLabel(headID);
+    if (head == null || head.isPermanent())
+    {
+      return;
+    }
+
+    double previous = head.getValue();
+    super.adjustHeadValue(segment);
+    if (head.getValue() < previous)
+    {
+      addToBucket(headID, head.getValue());
+    }
+  }
+
+  @Override
+  public Label getSmallestLabel()
+  {
+    while (!buckets.isEmpty())
+    {
+      Double smallestKey = buckets.firstKey();
+      Deque<Integer> ids = buckets.get(smallestKey);
+      while (ids != null && !ids.isEmpty())
+      {
+        int id = ids.removeFirst();
+        Label label = getLabel(id);
+        if (label == null || label.isPermanent())
+        {
+          continue;
+        }
+
+        if (Double.compare(label.getValue(), smallestKey.doubleValue()) == 0)
+        {
+          if (ids.isEmpty())
+          {
+            buckets.remove(smallestKey);
+          }
+          return label;
+        }
+      }
+
+      buckets.remove(smallestKey);
+    }
+
+    Label smallest = null;
+    for (Label label : labels)
+    {
+      if (label == null || label.isPermanent())
+      {
+        continue;
+      }
+      if (smallest == null || label.getValue() < smallest.getValue())
+      {
+        smallest = label;
+      }
+    }
+    return smallest;
+  }
+
+  @Override
+  public void makePermanent(final int intersectionID)
+  {
+    Label label = getLabel(intersectionID);
+    if (label != null)
+    {
+      label.makePermanent();
+    }
+  }
+
+  private void addToBucket(final int intersectionID, final double value)
+  {
+    Deque<Integer> ids = buckets.get(value);
+    if (ids == null)
+    {
+      ids = new ArrayDeque<Integer>();
+      buckets.put(value, ids);
+    }
+    ids.addLast(intersectionID);
+  }
+}