| /* |
| * 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.maven.doxia.module.apt; |
| |
| import java.io.IOException; |
| import java.io.LineNumberReader; |
| import java.io.Reader; |
| |
| /** |
| * Reader for apt source documents. |
| */ |
| 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} |
| * |
| * @return a {@link java.lang.String} object. |
| * @throws org.apache.maven.doxia.module.apt.AptParseException if any. |
| */ |
| 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(null, e, lineNumber, -1); |
| } |
| |
| return line; |
| } |
| |
| /** |
| * {@inheritDoc} |
| * |
| * @return a {@link java.lang.String} object. |
| */ |
| public String getName() { |
| // never return null |
| return name != null ? name : ""; |
| } |
| |
| /** |
| * {@inheritDoc} |
| * |
| * @return a int. |
| */ |
| public int getLineNumber() { |
| return lineNumber; |
| } |
| |
| /** |
| * Closes the reader associated with this AptReaderSource. |
| */ |
| public void close() { |
| if (reader == null) { |
| return; |
| } |
| |
| try { |
| reader.close(); |
| } catch (IOException ex) { |
| // ignore |
| } |
| reader = null; |
| } |
| } |