| /* |
| * 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.solr.schema; |
| |
| /** |
| * <code>CopyField</code> contains all the information of a valid copy fields in an index. |
| * |
| * @since solr 1.4 |
| */ |
| public class CopyField { |
| |
| private final SchemaField source; |
| private final SchemaField destination; |
| private final int maxChars; |
| public static final int UNLIMITED = 0; |
| |
| public CopyField(final SchemaField source, final SchemaField destination) { |
| this(source, destination, UNLIMITED); |
| } |
| |
| /** |
| * @param source The SchemaField of the source field. |
| * @param destination The SchemaField of the destination field. |
| * @param maxChars Maximum number of chars in source field to copy to destination field. |
| * If equal to 0, there is no limit. |
| */ |
| public CopyField(final SchemaField source, final SchemaField destination, |
| final int maxChars) { |
| if (source == null || destination == null) { |
| throw new IllegalArgumentException( |
| "Source or Destination SchemaField can't be NULL."); |
| } |
| if (maxChars < 0) { |
| throw new IllegalArgumentException( |
| "Attribute maxChars can't have a negative value."); |
| } |
| this.source = source; |
| this.destination = destination; |
| this.maxChars = maxChars; |
| } |
| |
| public String getLimitedValue( final String val ){ |
| return maxChars == UNLIMITED || val.length() < maxChars ? |
| val : val.substring( 0, maxChars ); |
| } |
| |
| /** |
| * @return source SchemaField |
| */ |
| public SchemaField getSource() { |
| return source; |
| } |
| |
| /** |
| * @return destination SchemaField |
| */ |
| public SchemaField getDestination() { |
| return destination; |
| } |
| |
| /** |
| * @return the maximum number of chars in source field to copy to destination field. |
| */ |
| public int getMaxChars() { |
| return maxChars; |
| } |
| } |