Refactor for query plan capture with initial threshold micros - part 2

src/main/java/io/ebeaninternal/server/query/CQueryPlanRequest.java

@@ -0,0 +1,86 @@
+package io.ebeaninternal.server.query;
+
+import io.ebean.meta.MetaQueryPlan;
+import io.ebean.meta.QueryPlanRequest;
+
+import java.sql.Connection;
+import java.util.ArrayList;
+import java.util.Iterator;
+import java.util.List;
+
+/**
+ * Captures database query plans.
+ */
+class CQueryPlanRequest {
+
+  private final List<MetaQueryPlan> plans = new ArrayList<>();
+
+  private final Connection connection;
+  private final long since;
+  private final int maxCount;
+  private final long maxTime;
+  private Iterator<CQueryBindCapture> iterator;
+
+  CQueryPlanRequest(Connection connection, QueryPlanRequest req, Iterator<CQueryBindCapture> iterator) {
+    this.connection = connection;
+    this.iterator = iterator;
+    this.maxCount = req.getMaxCount();
+    long reqSince = req.getSince();
+    this.since = (reqSince == 0) ? Long.MAX_VALUE: reqSince;
+    long maxTimeMillis = req.getMaxTimeMillis();
+    this.maxTime = maxTimeMillis > 0 ? System.currentTimeMillis() + maxTimeMillis : 0;
+  }
+
+  /**
+   * Return the connection used to collect the db query plan.
+   */
+  Connection getConnection() {
+    return connection;
+  }
+
+  /**
+   * Add the collected query plan.
+   */
+  void add(MetaQueryPlan dbQueryPlan) {
+    plans.add(dbQueryPlan);
+  }
+
+  /**
+   * Return the min epoch time in millis for minimum bind capture age.
+   */
+  long getSince() {
+    return since;
+  }
+
+  /**
+   * Return the captured query plans.
+   */
+  List<MetaQueryPlan> getPlans() {
+    return plans;
+  }
+
+  /**
+   * Return true to continue database query plan capture.
+   */
+  boolean hasNext() {
+    return moreByCount() && moreByTime() && iterator.hasNext();
+  }
+
+  /**
+   * Capture the next database query plan.
+   */
+  void nextCapture() {
+    final CQueryBindCapture next = iterator.next();
+    if (next.collectQueryPlan(this)) {
+      iterator.remove();
+    }
+  }
+
+  private boolean moreByCount() {
+    return maxCount == 0 || maxCount > plans.size();
+  }
+
+  private boolean moreByTime() {
+    return maxTime == 0 || maxTime > System.currentTimeMillis();
+  }
+}