runtime/org.argeo.slc.support.simple/src/main/java/org/argeo/slc/diff/TableDiffPosition.java

   1 /*
   2  * Copyright (C) 2010 Mathieu Baudier <mbaudier@argeo.org>
   3  *
   4  * Licensed under the Apache License, Version 2.0 (the "License");
   5  * you may not use this file except in compliance with the License.
   6  * You may obtain a copy of the License at
   7  *
   8  *         http://www.apache.org/licenses/LICENSE-2.0
   9  *
  10  * Unless required by applicable law or agreed to in writing, software
  11  * distributed under the License is distributed on an "AS IS" BASIS,
  12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  * See the License for the specific language governing permissions and
  14  * limitations under the License.
  15  */
  16
  17 package org.argeo.slc.diff;
  18
  19 import org.argeo.slc.UnsupportedException;
  20
  21 /**
  22  * A diff position within a table structure such a CSV file or an SQL result
  23  * set.
  24  */
  25 public class TableDiffPosition extends DiffPosition {
  26         private Integer line;
  27         /** Can be null */
  28         private Integer column;
  29         /** Can be null */
  30         private String columnName;
  31
  32         public TableDiffPosition(RelatedFile relatedFile, Integer line,
  33                         Integer column, String columnName) {
  34                 super(relatedFile);
  35                 this.line = line;
  36                 this.column = column;
  37                 this.columnName = columnName;
  38         }
  39
  40         public Integer getLine() {
  41                 return line;
  42         }
  43
  44         public Integer getColumn() {
  45                 return column;
  46         }
  47
  48         public String getColumnName() {
  49                 return columnName;
  50         }
  51
  52         public int compareTo(DiffPosition dp) {
  53                 if (!(dp instanceof TableDiffPosition))
  54                         throw new UnsupportedException("position", dp);
  55
  56                 TableDiffPosition o = (TableDiffPosition) dp;
  57                 if (relatedFile.equals(o.relatedFile)) {
  58                         if (line == o.line) {
  59                                 return column.compareTo(o.column);
  60                         } else {
  61                                 return line.compareTo(o.line);
  62                         }
  63                 } else {
  64                         return relatedFile.compareTo(o.relatedFile);
  65                 }
  66         }
  67
  68         @Override
  69         public String toString() {
  70                 StringBuffer buf = new StringBuffer("");
  71                 buf.append(relatedFile).append('[').append(line);
  72                 if (column != null) {
  73                         buf.append(',').append(column);
  74                         if (columnName != null) {
  75                                 buf.append('-').append(columnName);
  76                         }
  77                 }
  78                 buf.append(']');
  79                 return buf.toString();
  80         }
  81
  82 }