| package org.apache.maven.shared.filtering; |
| |
| /* |
| * 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.FilterReader; |
| import java.io.Reader; |
| import java.util.LinkedHashSet; |
| |
| import org.codehaus.plexus.interpolation.multi.DelimiterSpecification; |
| |
| /** |
| * @author Karl Heinz Marbaise <khmarbaise@apache.org> |
| */ |
| public abstract class AbstractFilterReaderLineEnding |
| extends FilterReader |
| { |
| |
| private String escapeString; |
| |
| /** |
| * using escape or not. |
| */ |
| protected boolean useEscape = false; |
| |
| /** |
| * if true escapeString will be preserved \{foo} -> \{foo} |
| */ |
| private boolean preserveEscapeString = false; |
| |
| protected LinkedHashSet<DelimiterSpecification> delimiters = new LinkedHashSet<DelimiterSpecification>(); |
| |
| /** |
| * must always be bigger than escape string plus delimiters, but doesn't need to be exact |
| */ |
| protected int markLength = 128; |
| |
| protected AbstractFilterReaderLineEnding( Reader in ) |
| { |
| super( in ); |
| } |
| |
| /** |
| * @return the escapce string. |
| */ |
| public String getEscapeString() |
| { |
| return escapeString; |
| } |
| |
| /** |
| * @param escapeString Set the value of the escape string. |
| */ |
| public void setEscapeString( String escapeString ) |
| { |
| // TODO NPE if escapeString is null ? |
| if ( escapeString != null && escapeString.length() >= 1 ) |
| { |
| this.escapeString = escapeString; |
| this.useEscape = escapeString != null && escapeString.length() >= 1; |
| calculateMarkLength(); |
| } |
| } |
| |
| /** |
| * @return state of preserve escape string. |
| */ |
| public boolean isPreserveEscapeString() |
| { |
| return preserveEscapeString; |
| } |
| |
| /** |
| * @param preserveEscapeString preserve escape string {@code true} or {@code false}. |
| */ |
| public void setPreserveEscapeString( boolean preserveEscapeString ) |
| { |
| this.preserveEscapeString = preserveEscapeString; |
| } |
| |
| protected void calculateMarkLength() |
| { |
| markLength = 128; |
| |
| if ( escapeString != null ) |
| { |
| |
| markLength += escapeString.length(); |
| |
| } |
| for ( DelimiterSpecification spec : delimiters ) |
| { |
| markLength += spec.getBegin().length(); |
| markLength += spec.getEnd().length(); |
| |
| } |
| } |
| } |