org.apache.maven.shared.utils.xml.XmlWriterUtil Maven / Gradle / Ivy
package org.apache.maven.shared.utils.xml;
/*
* 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.shared.utils.StringUtils;
/**
* Utility class for the XmlWriter class.
*
* @author Vincent Siveton
* @version $Id$
*/
public class XmlWriterUtil
{
/** The vm line separator */
public static final String LS = System.getProperty( "line.separator" );
/** The default line indenter size i.e. 2. */
public static final int DEFAULT_INDENTATION_SIZE = 2;
/** The default column before line wrapping i.e. 80. */
public static final int DEFAULT_COLUMN_LINE = 80;
/**
* Convenience method to write one CRLF.
*
* @param writer not null writer
*/
public static void writeLineBreak( XMLWriter writer )
{
writeLineBreak( writer, 1 );
}
/**
* Convenience method to repeat CRLF.
*
* @param writer not null
* @param repeat positive number
*/
public static void writeLineBreak( XMLWriter writer, int repeat )
{
for ( int i = 0; i < repeat; i++ )
{
writer.writeMarkup( LS );
}
}
/**
* Convenience method to repeat CRLF and to indent the writer by 2.
*
* @param writer not null
* @param repeat The number of repetitions of the indent
* @param indent positive number
* @see #DEFAULT_INDENTATION_SIZE
* @see #writeLineBreak(XMLWriter, int, int, int)
*/
public static void writeLineBreak( XMLWriter writer, int repeat, int indent )
{
writeLineBreak( writer, repeat, indent, DEFAULT_INDENTATION_SIZE );
}
/**
* Convenience method to repeat CRLF and to indent the writer by indentSize.
*
* @param writer not null
* @param repeat The number of repetitions of the indent
* @param indent positive number
* @param indentSize positive number
*/
public static void writeLineBreak( XMLWriter writer, int repeat, int indent, int indentSize )
{
writeLineBreak( writer, repeat );
if ( indent < 0 )
{
indent = 0;
}
if ( indentSize < 0 )
{
indentSize = 0;
}
writer.writeText( StringUtils.repeat( " ", indent * indentSize ) );
}
/**
* Convenience method to write XML comment line break. Its size is 80.
*
* @param writer not null
* @see #DEFAULT_COLUMN_LINE
* @see #writeCommentLineBreak(XMLWriter, int)
*/
public static void writeCommentLineBreak( XMLWriter writer )
{
writeCommentLineBreak( writer, DEFAULT_COLUMN_LINE );
}
/**
* Convenience method to write XML comment line break with columnSize as length.
*
* @param writer not null
* @param columnSize positive number
*/
public static void writeCommentLineBreak( XMLWriter writer, int columnSize )
{
if ( columnSize < 10 )
{
columnSize = DEFAULT_COLUMN_LINE;
}
writer.writeMarkup( "" + LS );
}
/**
* Convenience method to write XML comment line. The comment is splitted to have a size of
* 80.
*
* @param writer not null
* @param comment The comment to write
* @see #DEFAULT_INDENTATION_SIZE
* @see #writeComment(XMLWriter, String, int, int)
*/
public static void writeComment( XMLWriter writer, String comment )
{
writeComment( writer, comment, 0, DEFAULT_INDENTATION_SIZE );
}
/**
* Convenience method to write XML comment line. The comment is split to have a size of
* 80 and is indented by indent using 2 as indentation size.
*
* @param writer not null
* @param comment The comment to write
* @param indent positive number
* @see #DEFAULT_INDENTATION_SIZE
* @see #writeComment(XMLWriter, String, int, int)
*/
public static void writeComment( XMLWriter writer, String comment, int indent )
{
writeComment( writer, comment, indent, DEFAULT_INDENTATION_SIZE );
}
/**
* Convenience method to write XML comment line. The comment is split to have a size of 80
* and is indented by indent using indentSize.
*
* @param writer not null
* @param comment The comment to write
* @param indent positive number
* @param indentSize positive number
* @see #DEFAULT_COLUMN_LINE
* @see #writeComment(XMLWriter, String, int, int, int)
*/
public static void writeComment( XMLWriter writer, String comment, int indent, int indentSize )
{
writeComment( writer, comment, indent, indentSize, DEFAULT_COLUMN_LINE );
}
/**
* Convenience method to write XML comment line. The comment is split to have a size of
* columnSize and is indented by indent using indentSize.
*
* @param writer not null
* @param comment The comment to write
* @param indent positive number
* @param indentSize positive number
* @param columnSize positive number
*/
public static void writeComment( XMLWriter writer, String comment, int indent, int indentSize, int columnSize )
{
if ( comment == null )
{
comment = "null";
}
if ( indent < 0 )
{
indent = 0;
}
if ( indentSize < 0 )
{
indentSize = 0;
}
if ( columnSize < 0 )
{
columnSize = DEFAULT_COLUMN_LINE;
}
String indentation = StringUtils.repeat( " ", indent * indentSize );
int magicNumber = indentation.length() + columnSize - "-->".length() - 1;
String[] sentences = StringUtils.split( comment, LS );
StringBuffer line = new StringBuffer( indentation + "" ).append( LS );
writer.writeMarkup( line.toString() );
}
line = new StringBuffer( indentation + "" ).append( LS );
writer.writeMarkup( line.toString() );
}
/**
* Convenience method to write XML comments between two comments line break.
* The XML comment block is not indented.
*
* @param writer not null
* @param comment The comment to write
* @see #DEFAULT_INDENTATION_SIZE
* @see #writeCommentText(XMLWriter, String, int, int)
*/
public static void writeCommentText( XMLWriter writer, String comment )
{
writeCommentText( writer, comment, 0, DEFAULT_INDENTATION_SIZE );
}
/**
* Convenience method to write XML comments between two comments line break.
* The XML comment block is also indented by indent using
* 2 as indentation size.
*
* @param writer not null
* @param comment The comment to write
* @param indent positive number
* @see #DEFAULT_INDENTATION_SIZE
* @see #writeCommentText(XMLWriter, String, int, int)
*/
public static void writeCommentText( XMLWriter writer, String comment, int indent )
{
writeCommentText( writer, comment, indent, DEFAULT_INDENTATION_SIZE );
}
/**
* Convenience method to write XML comment between two comment line break.
* The XML comment block is also indented by indent using indentSize.
*
* @param writer not null
* @param comment The comment to write
* @param indent positive number
* @param indentSize positive number
* @see #DEFAULT_COLUMN_LINE
* @see #writeCommentText(XMLWriter, String, int, int, int)
*/
public static void writeCommentText( XMLWriter writer, String comment, int indent, int indentSize )
{
writeCommentText( writer, comment, indent, indentSize, DEFAULT_COLUMN_LINE );
}
/**
* Convenience method to write XML comments between two comments line break.
* The XML comment block is also indented by indent using indentSize.
* The column size could be also be specified.
*
* @param writer not null
* @param comment The comment to write
* @param indent positive number
* @param indentSize positive number
* @param columnSize positive number
*/
public static void writeCommentText( XMLWriter writer, String comment, int indent, int indentSize, int columnSize )
{
if ( indent < 0 )
{
indent = 0;
}
if ( indentSize < 0 )
{
indentSize = 0;
}
if ( columnSize < 0 )
{
columnSize = DEFAULT_COLUMN_LINE;
}
writeLineBreak( writer, 1 );
writer.writeMarkup( StringUtils.repeat( " ", indent * indentSize ) );
writeCommentLineBreak( writer, columnSize );
writeComment( writer, comment, indent, indentSize, columnSize );
writer.writeMarkup( StringUtils.repeat( " ", indent * indentSize ) );
writeCommentLineBreak( writer, columnSize );
writeLineBreak( writer, 1, indent, indentSize );
}
}
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