SPARK-1637: Clean up examples for 1.0

- [x] Move all of them into subpackages of org.apache.spark.examples (right now some are in org.apache.spark.streaming.examples, for instance, and others are in org.apache.spark.examples.mllib)
- [x] Move Python examples into examples/src/main/python
- [x] Update docs to reflect these changes

Author: Sandeep <sandeep@techaddict.me>

This patch had conflicts when merged, resolved by
Committer: Matei Zaharia <matei@databricks.com>

Closes #571 from techaddict/SPARK-1637 and squashes the following commits:

47ef86c [Sandeep] Changes based on Discussions on PR, removing use of RawTextHelper from examples
8ed2d3f [Sandeep] Docs Updated for changes, Change for java examples
5f96121 [Sandeep] Move Python examples into examples/src/main/python
0a8dd77 [Sandeep] Move all Scala Examples to org.apache.spark.examples (some are in org.apache.spark.streaming.examples, for instance, and others are in org.apache.spark.examples.mllib)

1 files changed, 36 insertions, 0 deletions

diff --git a/examples/src/main/python/sort.py b/examples/src/main/python/sort.py
new file mode 100755
index 0000000000..5de20a6d98
--- /dev/null
+++ b/examples/src/main/python/sort.py
@@ -0,0 +1,36 @@
+#
+# 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.
+#
+
+import sys
+
+from pyspark import SparkContext
+
+
+if __name__ == "__main__":
+    if len(sys.argv) < 3:
+        print >> sys.stderr, "Usage: sort <master> <file>"
+        exit(-1)
+    sc = SparkContext(sys.argv[1], "PythonSort")
+    lines = sc.textFile(sys.argv[2], 1)
+    sortedCount = lines.flatMap(lambda x: x.split(' ')) \
+                  .map(lambda x: (int(x), 1)) \
+                  .sortByKey(lambda x: x)
+    # This is just a demo on how to bring all the sorted data back to a single node.
+    # In reality, we wouldn't want to collect all the data to the driver node.
+    output = sortedCount.collect()
+    for (num, unitcount) in output:
+        print num