/*
* 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.directory.studio.ldapbrowser.common.filtereditor;
import org.apache.directory.studio.ldapbrowser.core.model.filter.LdapAndFilterComponent;
import org.apache.directory.studio.ldapbrowser.core.model.filter.LdapFilter;
import org.apache.directory.studio.ldapbrowser.core.model.filter.LdapFilterComponent;
import org.apache.directory.studio.ldapbrowser.core.model.filter.LdapFilterExtensibleComponent;
import org.apache.directory.studio.ldapbrowser.core.model.filter.LdapFilterItemComponent;
import org.apache.directory.studio.ldapbrowser.core.model.filter.LdapNotFilterComponent;
import org.apache.directory.studio.ldapbrowser.core.model.filter.LdapOrFilterComponent;
import org.apache.directory.studio.ldapbrowser.core.model.filter.parser.LdapFilterParser;
import org.eclipse.jface.text.formatter.IFormattingStrategy;
import org.eclipse.jface.text.source.ISourceViewer;
/**
* The FilterFormattingStrategy is used to format the LDAP filter in the
* filter editor.
*
* @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a>
* @version $Rev$, $Date$
*/
public class FilterFormattingStrategy implements IFormattingStrategy
{
/** The filter parser. */
private LdapFilterParser parser;
/** The source viewer. */
private ISourceViewer sourceViewer;
/**
* Creates a new instance of FilterFormattingStrategy.
*
* @param sourceViewer the source viewer
* @param parser the filter parser
*/
public FilterFormattingStrategy( ISourceViewer sourceViewer, LdapFilterParser parser )
{
this.parser = parser;
this.sourceViewer = sourceViewer;
}
/**
* @see org.eclipse.jface.text.formatter.IFormattingStrategy#formatterStarts(java.lang.String)
*/
public void formatterStarts( String initialIndentation )
{
}
/**
* @see org.eclipse.jface.text.formatter.IFormattingStrategy#format(java.lang.String, boolean, java.lang.String, int[])
*/
public String format( String content, boolean isLineStart, String indentation, int[] positions )
{
// this.parser.parse(content);
LdapFilter model = parser.getModel();
if ( model != null && model.isValid() )
{
sourceViewer.getDocument().set( getFormattedFilter( model, 0 ) );
}
return null;
}
/**
* Gets the formatted string respresentation of the filter.
*
* @param filter the filter
* @param indent the indent
*
* @return the formatted string respresentation of the filter
*/
private String getFormattedFilter( LdapFilter filter, int indent )
{
StringBuffer sb = new StringBuffer();
for ( int i = 0; i < indent; i++ )
{
sb.append( FilterAutoEditStrategy.INDENT_STRING );
}
LdapFilterComponent fc = filter.getFilterComponent();
if ( fc instanceof LdapFilterItemComponent )
{
sb.append( '(' ).append( ( ( LdapFilterItemComponent ) fc ).toString() ).append( ')' );
}
else if ( fc instanceof LdapFilterExtensibleComponent )
{
sb.append( '(' ).append( ( ( LdapFilterExtensibleComponent ) fc ).toString() ).append( ')' );
}
else if ( fc instanceof LdapNotFilterComponent )
{
sb.append( "(!" ); //$NON-NLS-1$
LdapNotFilterComponent lnfc = ( LdapNotFilterComponent ) fc;
if ( lnfc.getFilters().length > 0
&& lnfc.getFilters()[0].getFilterComponent() instanceof LdapFilterItemComponent )
{
sb.append( getFormattedFilter( ( lnfc ).getFilters()[0], 0 ) );
}
else
{
sb.append( '\n' );
sb.append( getFormattedFilter( ( lnfc ).getFilters()[0], indent + 1 ) );
sb.append( '\n' );
for ( int i = 0; i < indent; i++ )
sb.append( FilterAutoEditStrategy.INDENT_STRING );
}
sb.append( ')' );
}
else if ( fc instanceof LdapAndFilterComponent )
{
sb.append( "(&" ); //$NON-NLS-1$
sb.append( '\n' );
LdapFilter[] filters = ( ( LdapAndFilterComponent ) fc ).getFilters();
for ( int i = 0; i < filters.length; i++ )
{
sb.append( getFormattedFilter( filters[i], indent + 1 ) );
sb.append( '\n' );
}
for ( int i = 0; i < indent; i++ )
sb.append( FilterAutoEditStrategy.INDENT_STRING );
sb.append( ')' );
}
else if ( fc instanceof LdapOrFilterComponent )
{
sb.append( "(|" ); //$NON-NLS-1$
sb.append( '\n' );
LdapFilter[] filters = ( ( LdapOrFilterComponent ) fc ).getFilters();
for ( int i = 0; i < filters.length; i++ )
{
sb.append( getFormattedFilter( filters[i], indent + 1 ) );
sb.append( '\n' );
}
for ( int i = 0; i < indent; i++ )
sb.append( FilterAutoEditStrategy.INDENT_STRING );
sb.append( ')' );
}
return sb.toString();
}
/**
* @see org.eclipse.jface.text.formatter.IFormattingStrategy#formatterStops()
*/
public void formatterStops()
{
}
}