From d766896972c9e9be4a9e0021ec5f4f0665901865 Mon Sep 17 00:00:00 2001
From: "Benjamin J. Culkin" <bjculkin@mix.wvu.edu>
Date: Sat, 9 Sep 2017 21:46:16 -0300
Subject: Update

Most of it is documentation changes.

The rest is more work on BlockReaders, as well as a simple command
language for configuring them.
---
 .../utils/ioutils/blocks/MappedBlockReader.java    | 44 ++++++++++++++++++++++
 1 file changed, 44 insertions(+)
 create mode 100644 BJC-Utils2/src/main/java/bjc/utils/ioutils/blocks/MappedBlockReader.java

(limited to 'BJC-Utils2/src/main/java/bjc/utils/ioutils/blocks/MappedBlockReader.java')

diff --git a/BJC-Utils2/src/main/java/bjc/utils/ioutils/blocks/MappedBlockReader.java b/BJC-Utils2/src/main/java/bjc/utils/ioutils/blocks/MappedBlockReader.java
new file mode 100644
index 0000000..1996421
--- /dev/null
+++ b/BJC-Utils2/src/main/java/bjc/utils/ioutils/blocks/MappedBlockReader.java
@@ -0,0 +1,44 @@
+package bjc.utils.ioutils.blocks;
+
+import java.io.IOException;
+
+import java.util.function.UnaryOperator;
+
+public class MappedBlockReader implements BlockReader {
+	private BlockReader reader;
+
+	private Block current;
+
+	private UnaryOperator<Block> transform;
+
+	public MappedBlockReader(BlockReader source, UnaryOperator<Block> trans) {
+		reader    = source;
+		transform = trans;
+	}
+
+	@Override
+	public boolean hasNextBlock() {
+		return reader.hasNextBlock();
+	}
+
+	@Override
+	public Block getBlock() {
+		return current;
+	}
+
+	@Override	
+	public boolean nextBlock() {
+		if(hasNextBlock()) {
+			current = trans.apply(reader.next());
+
+			return true;
+		}
+
+		return false;
+	}
+
+	@Override
+	public int getBlockCount() {
+		return reader.getBlockCount();
+	}
+}
-- 
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