| /* |
| * 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 |
| * |
| * https://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.api.ldap.model.schema.syntaxCheckers; |
| |
| |
| import org.apache.directory.api.i18n.I18n; |
| import org.apache.directory.api.ldap.model.schema.SyntaxChecker; |
| import org.apache.directory.api.util.Strings; |
| |
| |
| /** |
| * A SyntaxChecker implemented using Perl5 regular expressions to constrain |
| * values. |
| * |
| * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a> |
| */ |
| @SuppressWarnings("serial") |
| public final class RegexSyntaxChecker extends SyntaxChecker |
| { |
| /** the set of regular expressions */ |
| private String[] expressions; |
| |
| /** |
| * A static Builder for this class |
| */ |
| public static final class Builder extends SCBuilder<RegexSyntaxChecker> |
| { |
| /** the set of regular expressions */ |
| private String[] expressions; |
| |
| /** |
| * The Builder constructor |
| */ |
| private Builder() |
| { |
| super( null ); |
| } |
| |
| |
| /** |
| * Add a list of regexp to be applied by this SyntaxChecker |
| * |
| * @param expressions The regexp list to add |
| * @return the RegexSyntaxChecker Builder instance |
| */ |
| public Builder setExpressions( String[] expressions ) |
| { |
| if ( ( expressions != null ) && ( expressions.length > 0 ) ) |
| { |
| this.expressions = new String[expressions.length]; |
| System.arraycopy( expressions, 0, this.expressions, 0, expressions.length ); |
| } |
| |
| return this; |
| } |
| |
| |
| /** |
| * Create a new instance of RegexSyntaxChecker |
| * @return A new instance of RegexSyntaxChecker |
| */ |
| public RegexSyntaxChecker build() |
| { |
| return new RegexSyntaxChecker( oid, expressions ); |
| } |
| } |
| |
| |
| /** |
| * Creates a Syntax validator for a specific Syntax using Perl5 matching |
| * rules for validation. |
| * |
| * @param oid the oid of the Syntax values checked |
| * @param matchExprArray the array of matching expressions |
| */ |
| private RegexSyntaxChecker( String oid, String[] matchExprArray ) |
| { |
| super( oid ); |
| |
| this.expressions = matchExprArray; |
| } |
| |
| |
| /** |
| * @return An instance of the Builder for this class |
| */ |
| public static Builder builder() |
| { |
| return new Builder(); |
| } |
| |
| |
| /** |
| * {@inheritDoc} |
| */ |
| @Override |
| public boolean isValidSyntax( Object value ) |
| { |
| String str; |
| |
| if ( value instanceof String ) |
| { |
| str = ( String ) value; |
| |
| for ( String regexp : expressions ) |
| { |
| if ( !str.matches( regexp ) ) |
| { |
| if ( LOG.isDebugEnabled() ) |
| { |
| LOG.debug( I18n.err( I18n.ERR_13210_SYNTAX_INVALID, value ) ); |
| } |
| |
| return false; |
| } |
| } |
| } |
| |
| if ( LOG.isDebugEnabled() ) |
| { |
| LOG.debug( I18n.msg( I18n.MSG_13701_SYNTAX_VALID, value ) ); |
| } |
| |
| return true; |
| } |
| |
| |
| /** |
| * Get the list of regexp stored into this SyntaxChecker |
| * |
| * @return AN array containing all the stored regexp |
| */ |
| public String[] getExpressions() |
| { |
| if ( expressions == null ) |
| { |
| return Strings.EMPTY_STRING_ARRAY; |
| } |
| |
| String[] exprs = new String[expressions.length]; |
| System.arraycopy( expressions, 0, exprs, 0, expressions.length ); |
| |
| return exprs; |
| } |
| } |