/*
 * 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.beam.runners.spark.io;

import org.apache.beam.sdk.transforms.PTransform;
import org.apache.beam.sdk.values.PCollection;
import org.apache.beam.sdk.values.PDone;

/**
 * Print to console.
 */
public final class ConsoleIO {

  private ConsoleIO() {
  }

  /**
   * Write on the console.
   */
  public static final class Write {

    private Write() {
    }

    public static <T> Unbound<T> out() {
      return new Unbound<>(10);
    }

    public static <T> Unbound<T> out(int num) {
      return new Unbound<>(num);
    }

    /**
     * {@link PTransform} writing {@link PCollection} on the console.
     * @param <T> the type of the elements in the {@link PCollection}
     */
    public static class Unbound<T> extends PTransform<PCollection<T>, PDone> {

      private final int num;

      Unbound(int num) {
        this.num = num;
      }

      public int getNum() {
        return num;
      }

      @Override
      public PDone expand(PCollection<T> input) {
        return PDone.in(input.getPipeline());
      }
    }
  }
}

@@ -984,19 +984,16 @@
 ne;%0A%0A/**
-%0A *
  Print t
@@ -1002,17 +1002,16 @@
 console.
-%0A
  */%0Apubl
@@ -1065,19 +1065,16 @@
 () %7B
-%0A  
 %7D%0A%0A  /**
 %0A   
@@ -1073,26 +1073,17 @@
  /**
-%0A   *
  Write 
+t
 o
-n the
  con
@@ -1087,19 +1087,16 @@
 console.
-%0A  
  */%0A  pu
@@ -1124,24 +1124,72 @@
 ss Write %7B%0A%0A
+    private static final int DEFAULT_NUM = 10;%0A%0A
     private 
@@ -1201,95 +1201,272 @@
 () %7B
+%7D%0A
 %0A    
-%7D%0A%0A    public static %3CT%3E Unbound%3CT%3E out() %7B%0A      return new Unbound%3C%3E(10);%0A    %7D%0A
+/** Prints %7B@value #DEFAULT_NUM%7D elements from the %7B@link PCollection%7D to the console. */%0A    public static %3CT%3E Unbound%3CT%3E out() %7B%0A      return new Unbound%3C%3E(DEFAULT_NUM);%0A    %7D%0A%0A    /** Prints %7B@code num%7D elements from the %7B@link PCollection%7D to stdout. */
 %0A   
@@ -1612,18 +1612,18 @@
 ection%7D 
+t
 o
-n
  the con
@@ -1628,16 +1628,23 @@
 onsole.%0A
+     *%0A
      * @

Add javadoc to ConsoleIO