From 3a79c4d1a6d0d2a247bf442d50c18e123123d082 Mon Sep 17 00:00:00 2001
From: shawkins <shawkins@redhat.com>
Date: Mon, 6 Feb 2017 13:45:59 -0500
Subject: [PATCH] TEIID-4567 adding missing read method

---
 .../teiid/query/function/FunctionMethods.java | 25 +++++++++++++++++++
 .../transport/TestJDBCSocketTransport.java    | 13 ++++++----
 2 files changed, 33 insertions(+), 5 deletions(-)

diff --git a/engine/src/main/java/org/teiid/query/function/FunctionMethods.java b/engine/src/main/java/org/teiid/query/function/FunctionMethods.java
index dbc31dfce2..bba10a34c1 100644
--- a/engine/src/main/java/org/teiid/query/function/FunctionMethods.java
+++ b/engine/src/main/java/org/teiid/query/function/FunctionMethods.java
@@ -109,6 +109,31 @@ private UpperLowerReader(Reader in, boolean upper) {
             super(in);
             this.upper = upper;
         }
+        
+        @Override
+        public int read(char[] cbuf, int off, int len) throws IOException {
+            if (len <= 0) {
+                if (len < 0) {
+                    throw new IndexOutOfBoundsException();
+                } else if ((off < 0) || (off > cbuf.length)) {
+                    throw new IndexOutOfBoundsException();
+                }
+                return 0;
+            }
+            int chars = 0;
+            while (chars <= len) {
+                int c = read();
+                if (c == -1) {
+                    if (chars == 0) {
+                        return -1;
+                    }
+                    break;
+                }
+                cbuf[off++] = (char)c;
+                chars++;
+            }
+            return chars;
+        }
 
         @Override
         public int read() throws IOException {
diff --git a/test-integration/common/src/test/java/org/teiid/transport/TestJDBCSocketTransport.java b/test-integration/common/src/test/java/org/teiid/transport/TestJDBCSocketTransport.java
index 2acf1ac949..516ece8f45 100644
--- a/test-integration/common/src/test/java/org/teiid/transport/TestJDBCSocketTransport.java
+++ b/test-integration/common/src/test/java/org/teiid/transport/TestJDBCSocketTransport.java
@@ -22,11 +22,7 @@
 
 package org.teiid.transport;
 
-import static org.junit.Assert.assertArrayEquals;
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertFalse;
-import static org.junit.Assert.assertTrue;
-import static org.junit.Assert.fail;
+import static org.junit.Assert.*;
 
 import java.io.ByteArrayInputStream;
 import java.io.IOException;
@@ -364,6 +360,13 @@ public Object getConnectionFactory()
 		s.execute();
 	}
 	
+    @Test public void testLobCase() throws Exception {
+        Statement s = conn.createStatement();
+        s.execute("select ucase(cast('abc' as clob))");
+        s.getResultSet().next();
+        assertEquals("ABC", s.getResultSet().getString(1));
+    }
+	
 	@Test public void testGeometryStreaming() throws Exception {
 		StringBuilder geomString = new StringBuilder();
 		for (int i = 0; i < 600; i++) {