| package org.apache.maven.doxia.module.apt; |
| |
| /* |
| * 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 java.io.IOException; |
| import java.io.LineNumberReader; |
| import java.io.Reader; |
| |
| import org.codehaus.plexus.util.IOUtil; |
| |
| /** |
| * Reader for apt source documents. |
| * |
| * @version $Id$ |
| */ |
| public class AptReaderSource |
| implements AptSource |
| { |
| /** A reader. */ |
| private LineNumberReader reader; |
| |
| /** lineNumber. */ |
| private int lineNumber; |
| |
| /** The name, e.g. the filename. */ |
| private String name; |
| |
| /** |
| * Constructor: initialize reader. |
| * |
| * @param in the reader. |
| */ |
| public AptReaderSource( Reader in ) |
| { |
| reader = new LineNumberReader( in ); |
| |
| lineNumber = -1; |
| } |
| |
| /** |
| * Constructor: initialize reader. |
| * |
| * @param in the reader. |
| * @param name the name of the source |
| */ |
| public AptReaderSource( Reader in, String name ) |
| { |
| this( in ); |
| |
| this.name = name; |
| } |
| |
| /** {@inheritDoc} */ |
| public String getNextLine() |
| throws AptParseException |
| { |
| if ( reader == null ) |
| { |
| return null; |
| } |
| |
| String line; |
| |
| try |
| { |
| line = reader.readLine(); |
| if ( line == null ) |
| { |
| reader.close(); |
| reader = null; |
| } |
| else |
| { |
| lineNumber = reader.getLineNumber(); |
| } |
| } |
| catch ( IOException e ) |
| { |
| // TODO handle column number |
| throw new AptParseException( "IOException: " + e.getMessage(), e, lineNumber, -1 ); |
| } |
| |
| return line; |
| } |
| |
| /** {@inheritDoc} */ |
| public String getName() |
| { |
| // never return null |
| return name != null ? name : ""; |
| } |
| |
| /** {@inheritDoc} */ |
| public int getLineNumber() |
| { |
| return lineNumber; |
| } |
| |
| /** |
| * Closes the reader associated with this AptReaderSource. |
| */ |
| public void close() |
| { |
| IOUtil.close( reader ); |
| reader = null; |
| } |
| } |