From c82e3b3b2de0633317ec8fc85925e91422820597 Mon Sep 17 00:00:00 2001
From: "Benjamin J. Culkin" <bjculkin@mix.wvu.edu>
Date: Sun, 8 Oct 2017 22:39:59 -0300
Subject: Start splitting into maven modules

---
 .../java/bjc/utils/funcutils/CollectorUtils.java   | 39 ++++++++++++++++++++++
 1 file changed, 39 insertions(+)
 create mode 100644 base/src/main/java/bjc/utils/funcutils/CollectorUtils.java

(limited to 'base/src/main/java/bjc/utils/funcutils/CollectorUtils.java')

diff --git a/base/src/main/java/bjc/utils/funcutils/CollectorUtils.java b/base/src/main/java/bjc/utils/funcutils/CollectorUtils.java
new file mode 100644
index 0000000..a044bfd
--- /dev/null
+++ b/base/src/main/java/bjc/utils/funcutils/CollectorUtils.java
@@ -0,0 +1,39 @@
+package bjc.utils.funcutils;
+
+import java.util.stream.Collector;
+
+import bjc.utils.data.IHolder;
+import bjc.utils.data.IPair;
+
+/**
+ * Utilities for producing implementations of {@link Collector}
+ *
+ * @author ben
+ *
+ */
+public class CollectorUtils {
+	/**
+	 * Create a collector that applies two collectors at once
+	 *
+	 * @param <InitialType>
+	 *                The type of the collection to collect from
+	 * @param <AuxType1>
+	 *                The intermediate type of the first collector
+	 * @param <AuxType2>
+	 *                The intermediate type of the second collector
+	 * @param <FinalType1>
+	 *                The final type of the first collector
+	 * @param <FinalType2>
+	 *                The final type of the second collector
+	 * @param first
+	 *                The first collector to use
+	 * @param second
+	 *                The second collector to use
+	 * @return A collector that functions as mentioned above
+	 */
+	public static <InitialType, AuxType1, AuxType2, FinalType1, FinalType2> Collector<InitialType, IHolder<IPair<AuxType1, AuxType2>>, IPair<FinalType1, FinalType2>> compoundCollect(
+			final Collector<InitialType, AuxType1, FinalType1> first,
+			final Collector<InitialType, AuxType2, FinalType2> second) {
+		return new CompoundCollector<>(first, second);
+	}
+}
-- 
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