| /* |
| * 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.core.model.filter; |
| |
| |
| import java.util.ArrayList; |
| import java.util.Arrays; |
| import java.util.List; |
| |
| import org.apache.directory.studio.ldapbrowser.core.BrowserCoreMessages; |
| import org.apache.directory.studio.ldapbrowser.core.model.filter.parser.LdapFilterToken; |
| |
| |
| /** |
| * The LdapFilter class represents an LDAP filter. |
| * |
| * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a> |
| */ |
| public class LdapFilter |
| { |
| |
| private LdapFilterToken startToken; |
| |
| private LdapFilterComponent filterComponent; |
| |
| private LdapFilterToken stopToken; |
| |
| private List<LdapFilterToken> otherTokens; |
| |
| |
| /** |
| * Creates a new instance of LdapFilter. |
| */ |
| public LdapFilter() |
| { |
| this.startToken = null; |
| this.filterComponent = null; |
| this.stopToken = null; |
| this.otherTokens = new ArrayList<LdapFilterToken>( 2 ); |
| } |
| |
| |
| /** |
| * Sets the start token. |
| * |
| * @param startToken the start token |
| * |
| * @return true, if setting the start token was successful, false otherwise |
| */ |
| public boolean setStartToken( LdapFilterToken startToken ) |
| { |
| if ( this.startToken == null && startToken != null && startToken.getType() == LdapFilterToken.LPAR ) |
| { |
| this.startToken = startToken; |
| return true; |
| } |
| else |
| { |
| return false; |
| } |
| } |
| |
| |
| /** |
| * Sets the filter component. |
| * |
| * @param filterComponent the filter component |
| * |
| * @return true, if setting the filter component was successful, false otherwise |
| */ |
| public boolean setFilterComponent( LdapFilterComponent filterComponent ) |
| { |
| if ( this.startToken != null && this.filterComponent == null && filterComponent != null ) |
| { |
| this.filterComponent = filterComponent; |
| return true; |
| } |
| else |
| { |
| return false; |
| } |
| } |
| |
| |
| /** |
| * Sets the stop token. |
| * |
| * @param stopToken the stop token |
| * |
| * @return true, if setting the stop token was successful, false otherwise |
| */ |
| public boolean setStopToken( LdapFilterToken stopToken ) |
| { |
| if ( this.startToken != null && this.stopToken == null && stopToken != null |
| && stopToken.getType() == LdapFilterToken.RPAR ) |
| { |
| this.stopToken = stopToken; |
| return true; |
| } |
| else |
| { |
| return false; |
| } |
| } |
| |
| |
| /** |
| * Adds another token. |
| * |
| * @param otherToken the other token |
| */ |
| public void addOtherToken( LdapFilterToken otherToken ) |
| { |
| otherTokens.add( otherToken ); |
| } |
| |
| |
| /** |
| * Gets the start token. |
| * |
| * @return the start token, or null if not set |
| */ |
| public LdapFilterToken getStartToken() |
| { |
| return startToken; |
| } |
| |
| |
| /** |
| * Gets the filter component. |
| * |
| * @return the filter component, or null if not set |
| */ |
| public LdapFilterComponent getFilterComponent() |
| { |
| return filterComponent; |
| } |
| |
| |
| /** |
| * Gets the stop token. |
| * |
| * @return the stop token or null if not set |
| */ |
| public LdapFilterToken getStopToken() |
| { |
| return stopToken; |
| } |
| |
| |
| /** |
| * Gets all the tokens. |
| * |
| * @return the tokens |
| */ |
| public LdapFilterToken[] getTokens() |
| { |
| // collect tokens |
| List<LdapFilterToken> tokenList = new ArrayList<LdapFilterToken>(); |
| if ( startToken != null ) |
| { |
| tokenList.add( startToken ); |
| } |
| if ( stopToken != null ) |
| { |
| tokenList.add( stopToken ); |
| } |
| if ( filterComponent != null ) |
| { |
| tokenList.addAll( Arrays.asList( filterComponent.getTokens() ) ); |
| } |
| tokenList.addAll( otherTokens ); |
| |
| // sort tokens |
| LdapFilterToken[] tokens = tokenList.toArray( new LdapFilterToken[tokenList.size()] ); |
| Arrays.sort( tokens ); |
| |
| // return |
| return tokens; |
| } |
| |
| |
| /** |
| * Checks if this filter and all its subfilters are valid. |
| * |
| * @return true, if this filter and all its subfilters is valid |
| */ |
| public boolean isValid() |
| { |
| return startToken != null && filterComponent != null && filterComponent.isValid() && stopToken != null |
| && otherTokens.isEmpty(); |
| } |
| |
| |
| /** |
| * Gets the invalid filters. This may be this filter itself or any of the subfilters. |
| * |
| * @return an array of invalid filters or an empty array if all subfilters |
| * are valid. |
| */ |
| public LdapFilter[] getInvalidFilters() |
| { |
| if ( startToken == null || filterComponent == null || stopToken == null ) |
| { |
| return new LdapFilter[] |
| { this }; |
| } |
| else |
| { |
| return filterComponent.getInvalidFilters(); |
| } |
| } |
| |
| |
| /** |
| * Gets the filter at the given offset. This may be this filter |
| * or one of the subfilters. |
| * |
| * @param offset the offset |
| * |
| * @return the filter at the given offset or null is offset is out of |
| * range. |
| */ |
| public LdapFilter getFilter( int offset ) |
| { |
| if ( startToken != null && startToken.getOffset() == offset ) |
| { |
| return this; |
| } |
| else if ( stopToken != null && stopToken.getOffset() == offset ) |
| { |
| return this; |
| } |
| |
| if ( otherTokens != null && otherTokens.size() > 0 ) |
| { |
| for ( int i = 0; i < otherTokens.size(); i++ ) |
| { |
| LdapFilterToken otherToken = otherTokens.get( i ); |
| if ( otherToken != null && otherToken.getOffset() <= offset |
| && offset < otherToken.getOffset() + otherToken.getLength() ) |
| { |
| return this; |
| } |
| } |
| } |
| |
| if ( filterComponent != null ) |
| { |
| return filterComponent.getFilter( offset ); |
| } |
| |
| return this; |
| } |
| |
| |
| /** |
| * Gets the invalid cause. |
| * |
| * @return the invalid cause, or null if this filter is valid. |
| */ |
| public String getInvalidCause() |
| { |
| if ( stopToken == null ) |
| { |
| return BrowserCoreMessages.model_filter_missing_closing_parenthesis; |
| } |
| else if ( filterComponent == null ) |
| { |
| return BrowserCoreMessages.model_filter_missing_filter_expression; |
| } |
| else |
| { |
| return filterComponent.getInvalidCause(); |
| } |
| } |
| |
| |
| /** |
| * Gets the string representation of this LDAP filter. Invalid tokens and |
| * white spaces are removed, but incomplete filter parts are kept. |
| */ |
| public String toString() |
| { |
| StringBuffer sb = new StringBuffer(); |
| LdapFilterToken[] tokens = getTokens(); |
| for ( LdapFilterToken token : tokens ) |
| { |
| if ( token.getType() != LdapFilterToken.UNKNOWN && token.getType() != LdapFilterToken.WHITESPACE |
| && token.getType() != LdapFilterToken.ERROR && token.getType() != LdapFilterToken.EOF ) |
| { |
| sb.append( token.getValue() ); |
| } |
| } |
| return sb.toString(); |
| } |
| |
| |
| /** |
| * Gets the string representation of this LDAP filter, as provided by the user. |
| * It may contain white spaces and invalid tokens. |
| */ |
| public String toUserProvidedString() |
| { |
| // add _all_ tokens to the string, including invalid tokens and whitespace tokens |
| StringBuffer sb = new StringBuffer(); |
| LdapFilterToken[] tokens = getTokens(); |
| for ( LdapFilterToken token : tokens ) |
| { |
| sb.append( token.getValue() ); |
| } |
| return sb.toString(); |
| } |
| |
| } |