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Posted to commits@tajo.apache.org by ji...@apache.org on 2013/12/03 12:51:11 UTC
[16/18] git commit: TAJO-358: Implement initcap(string) function.
(Seungun Choe via hyunsik)
TAJO-358: Implement initcap(string) function. (Seungun Choe via hyunsik)
Project: http://git-wip-us.apache.org/repos/asf/incubator-tajo/repo
Commit: http://git-wip-us.apache.org/repos/asf/incubator-tajo/commit/3e2a2636
Tree: http://git-wip-us.apache.org/repos/asf/incubator-tajo/tree/3e2a2636
Diff: http://git-wip-us.apache.org/repos/asf/incubator-tajo/diff/3e2a2636
Branch: refs/heads/DAG-execplan
Commit: 3e2a2636e902137740d5e6e3510af565d8d33106
Parents: 0b0de13
Author: Hyunsik Choi <hy...@apache.org>
Authored: Tue Dec 3 18:41:41 2013 +0900
Committer: Hyunsik Choi <hy...@apache.org>
Committed: Tue Dec 3 18:41:41 2013 +0900
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CHANGES.txt | 5 +-
.../tajo/engine/function/string/InitCap.java | 49 ++++++++++++++++++++
.../java/org/apache/tajo/master/TajoMaster.java | 5 ++
.../TestStringOperatorsAndFunctions.java | 6 +++
4 files changed, 64 insertions(+), 1 deletion(-)
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http://git-wip-us.apache.org/repos/asf/incubator-tajo/blob/3e2a2636/CHANGES.txt
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diff --git a/CHANGES.txt b/CHANGES.txt
index 8c53d9b..8dd57d6 100644
--- a/CHANGES.txt
+++ b/CHANGES.txt
@@ -4,9 +4,12 @@ Release 0.8.0 - unreleased
NEW FEATURES
+ TAJO-358: Implement initcap(string) function. (Seungun Choe via hyunsik)
+
TAJO-355: Implement repeat(text,int) function. (DaeMyung Kang via jaehwa)
- TAJO-339: Implement sin( x ) - returns the sine of x (x is in radians). (Jae Young Lee via jaehwa)
+ TAJO-339: Implement sin( x ) - returns the sine of x (x is in radians).
+ (Jae Young Lee via jaehwa)
TAJO-348: Implement octet_length(text). (DaeMyung Kang via jaehwa)
http://git-wip-us.apache.org/repos/asf/incubator-tajo/blob/3e2a2636/tajo-core/tajo-core-backend/src/main/java/org/apache/tajo/engine/function/string/InitCap.java
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diff --git a/tajo-core/tajo-core-backend/src/main/java/org/apache/tajo/engine/function/string/InitCap.java b/tajo-core/tajo-core-backend/src/main/java/org/apache/tajo/engine/function/string/InitCap.java
new file mode 100644
index 0000000..e2158fb
--- /dev/null
+++ b/tajo-core/tajo-core-backend/src/main/java/org/apache/tajo/engine/function/string/InitCap.java
@@ -0,0 +1,49 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.tajo.engine.function.string;
+
+import org.apache.commons.lang.WordUtils;
+import org.apache.tajo.catalog.Column;
+import org.apache.tajo.common.TajoDataTypes;
+import org.apache.tajo.datum.Datum;
+import org.apache.tajo.datum.DatumFactory;
+import org.apache.tajo.datum.NullDatum;
+import org.apache.tajo.engine.function.GeneralFunction;
+import org.apache.tajo.storage.Tuple;
+
+/**
+ * Function definition
+ *
+ * text initcap(string text)
+ */
+public class InitCap extends GeneralFunction {
+ public InitCap() {
+ super(new Column[] {
+ new Column("text", TajoDataTypes.Type.TEXT)
+ });
+ }
+
+ @Override
+ public Datum eval(Tuple params) {
+ Datum datum = params.get(0);
+ if(datum instanceof NullDatum) return NullDatum.get();
+
+ return DatumFactory.createText(WordUtils.capitalizeFully(datum.asChars()));
+ }
+}
http://git-wip-us.apache.org/repos/asf/incubator-tajo/blob/3e2a2636/tajo-core/tajo-core-backend/src/main/java/org/apache/tajo/master/TajoMaster.java
----------------------------------------------------------------------
diff --git a/tajo-core/tajo-core-backend/src/main/java/org/apache/tajo/master/TajoMaster.java b/tajo-core/tajo-core-backend/src/main/java/org/apache/tajo/master/TajoMaster.java
index 58c3ef1..37ace1f 100644
--- a/tajo-core/tajo-core-backend/src/main/java/org/apache/tajo/master/TajoMaster.java
+++ b/tajo-core/tajo-core-backend/src/main/java/org/apache/tajo/master/TajoMaster.java
@@ -493,6 +493,11 @@ public class TajoMaster extends CompositeService {
CatalogUtil.newSimpleDataType(Type.FLOAT8),
CatalogUtil.newSimpleDataTypeArray(Type.FLOAT4)));
+ sqlFuncs.add(
+ new FunctionDesc("initcap", InitCap.class, FunctionType.GENERAL,
+ CatalogUtil.newSimpleDataType(Type.TEXT),
+ CatalogUtil.newSimpleDataTypeArray(Type.TEXT)));
+
return sqlFuncs;
}
http://git-wip-us.apache.org/repos/asf/incubator-tajo/blob/3e2a2636/tajo-core/tajo-core-backend/src/test/java/org/apache/tajo/engine/function/TestStringOperatorsAndFunctions.java
----------------------------------------------------------------------
diff --git a/tajo-core/tajo-core-backend/src/test/java/org/apache/tajo/engine/function/TestStringOperatorsAndFunctions.java b/tajo-core/tajo-core-backend/src/test/java/org/apache/tajo/engine/function/TestStringOperatorsAndFunctions.java
index 24c658e..b65fd34 100644
--- a/tajo-core/tajo-core-backend/src/test/java/org/apache/tajo/engine/function/TestStringOperatorsAndFunctions.java
+++ b/tajo-core/tajo-core-backend/src/test/java/org/apache/tajo/engine/function/TestStringOperatorsAndFunctions.java
@@ -397,4 +397,10 @@ public class TestStringOperatorsAndFunctions extends ExprTestBase {
testEval(schema, "table1", "ABCDEF,HIJKLMN,3.14", "select strposb(lower(col1) || lower(col2), 'fh') from table1",
new String[]{"6"});
}
+
+ @Test
+ public void testInitcap() throws IOException {
+ testSimpleEval("select initcap('hi bro') ", new String[]{"Hi Bro"});
+ testSimpleEval("select initcap('HI BRO') ", new String[]{"Hi Bro"});
+ }
}