/*

  * 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.commons.pipeline.stage;

 import java.io.BufferedReader;

 import java.io.IOException;

 import java.io.InputStream;

 import java.io.InputStreamReader;

 import org.apache.commons.pipeline.stage.BaseStage;

 import org.apache.commons.pipeline.StageException;

 /**

  * Breaks up an InputStream by line and exqueues each resulting line.

  */

 public class InputStreamLineBreakStage extends BaseStage {

     /**

      * Holds value of property ignoringBlankLines.

      */

     private boolean ignoringBlankLines = false;

     /** Creates a new instance of InputStreamLineBreakStage */

     public InputStreamLineBreakStage() {

         super();

     }

     /** Creates a new instance of InputStreamLineBreakStage */

     public InputStreamLineBreakStage(boolean ignoringBlankLines) {

         this.ignoringBlankLines = ignoringBlankLines;

     }

     public void process(Object obj) throws org.apache.commons.pipeline.StageException {

         InputStream is = (InputStream) obj;

         try {

             InputStreamReader reader = new InputStreamReader(is);

             BufferedReader buffered = new BufferedReader(reader);

             String line = buffered.readLine();

             while (line != null){

                 if (!(ignoringBlankLines && line.trim().equals(""))) {

                     this.emit(line);

                 }

                 line = buffered.readLine();

             }

         } catch (IOException e){

             throw new StageException(this, e);

         }

     }

     /**

      * Getter for property ignoreBlankLines.

      * @return Value of property ignoreBlankLines.

      */

     public boolean isIgnoringBlankLines()  {

         return this.ignoringBlankLines;

     }

     /**

      * Specifies that this stage will not exqueue blank lines.

      * @param ignoreBlankLines New value of property ignoreBlankLines.

      */

     public void setIgnoringBlankLines(boolean ignoringBlankLines)  {

         this.ignoringBlankLines = ignoringBlankLines;

     }

 }