| package org.apache.maven.doxia.sink.impl; |
| |
| /* |
| * 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 org.apache.maven.doxia.logging.Log; |
| import org.apache.maven.doxia.logging.SystemStreamLog; |
| import org.apache.maven.doxia.markup.Markup; |
| import org.apache.maven.doxia.sink.Sink; |
| |
| /** |
| * An abstract base class that defines some convenience methods for sinks. |
| * |
| * @author ltheussl |
| * @author <a href="mailto:vincent.siveton@gmail.com">Vincent Siveton</a> |
| * @version $Id$ |
| * @since 1.1 |
| */ |
| public abstract class AbstractSink |
| implements Sink, Markup |
| { |
| private Log logger; |
| |
| /** {@inheritDoc} */ |
| public void enableLogging( Log log ) |
| { |
| this.logger = log; |
| } |
| |
| /** |
| * Returns a logger for this sink. |
| * If no logger has been configured, a new SystemStreamLog is returned. |
| * |
| * @return Log |
| */ |
| protected Log getLog() |
| { |
| if ( logger == null ) |
| { |
| logger = new SystemStreamLog(); |
| } |
| |
| return logger; |
| } |
| |
| /** |
| * Parses the given String and replaces all occurrences of |
| * '\n', '\r' and '\r\n' with the system EOL. All Sinks should |
| * make sure that text output is filtered through this method. |
| * |
| * @param text the text to scan. |
| * May be null in which case null is returned. |
| * |
| * @return a String that contains only System EOLs. |
| */ |
| protected static String unifyEOLs( String text ) |
| { |
| if ( text == null ) |
| { |
| return null; |
| } |
| |
| int length = text.length(); |
| |
| StringBuilder buffer = new StringBuilder( length ); |
| |
| for ( int i = 0; i < length; i++ ) |
| { |
| if ( text.charAt( i ) == '\r' ) |
| { |
| if ( ( i + 1 ) < length && text.charAt( i + 1 ) == '\n' ) |
| { |
| i++; |
| } |
| |
| buffer.append( EOL ); |
| } |
| else if ( text.charAt( i ) == '\n' ) |
| { |
| buffer.append( EOL ); |
| } |
| else |
| { |
| buffer.append( text.charAt( i ) ); |
| } |
| } |
| |
| return buffer.toString(); |
| } |
| |
| /** |
| * This is called in {@link #head()} or in {@link #close()}, and can be used |
| * to set the sink into a clear state so it can be re-used. |
| * |
| * @since 1.1.2 |
| */ |
| protected void init() |
| { |
| // nop |
| } |
| } |