    1   /* TextType
    2    *
    3    * $Id: TextField.java 3799 2005-09-01 18:13:23Z stack-sf $
    4    *
    5    * Created on Mar 26, 2004
    6    *
    7    * Copyright (C) 2004 Internet Archive.
    8    *
    9    * This file is part of the Heritrix web crawler (crawler.archive.org).
    10   *
    11   * Heritrix is free software; you can redistribute it and/or modify
    12   * it under the terms of the GNU Lesser Public License as published by
    13   * the Free Software Foundation; either version 2.1 of the License, or
    14   * any later version.
    15   *
    16   * Heritrix is distributed in the hope that it will be useful,
    17   * but WITHOUT ANY WARRANTY; without even the implied warranty of
    18   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    19   * GNU Lesser Public License for more details.
    20   *
    21   * You should have received a copy of the GNU Lesser Public License
    22   * along with Heritrix; if not, write to the Free Software
    23   * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
    24   */
    25  package org.archive.crawler.settings;
    26
    27  import java.io.Serializable;
    28
    29  import org.archive.util.TextUtils;
    30
    31  /*** Class to hold values for text fields.
    32   *
    33   * Objects of this class could be used instead of {@link java.lang.String} to
    34   * hold text strings with newlines in it. SimpleTypes with values wrapped in
    35   * objects of this class will show up in the UI as multiline text areas.
    36   *
    37   * @author John Erik Halse
    38   *
    39   */
    40  public class TextField implements CharSequence, Serializable {
    41      private static final long serialVersionUID = -2853908867414076703L;
    42      private String value;
    43
    44      /*** Constructs a new TextField object.
    45       *
    46       * @param value the string represented by this TextField.
    47       */
    48      public TextField(String value) {
    49          this.value = TextUtils.replaceAll("\r\n", value, "\n").trim();
    50      }
    51
    52      /* (non-Javadoc)
    53       * @see java.lang.CharSequence#length()
    54       */
    55      public int length() {
    56          return value.length();
    57      }
    58
    59      /* (non-Javadoc)
    60       * @see java.lang.CharSequence#charAt(int)
    61       */
    62      public char charAt(int index) {
    63          return value.charAt(index);
    64      }
    65
    66      /* (non-Javadoc)
    67       * @see java.lang.CharSequence#subSequence(int, int)
    68       */
    69      public CharSequence subSequence(int start, int end) {
    70          return value.subSequence(start, end);
    71      }
    72
    73      public boolean equals(Object obj) {
    74          return obj instanceof TextField && value.equals(obj);
    75      }
    76
    77      /* (non-Javadoc)
    78       * @see java.lang.Object#hashCode()
    79       */
    80      public int hashCode() {
    81          return value.hashCode();
    82      }
    83
    84      /* (non-Javadoc)
    85       * @see java.lang.Object#toString()
    86       */
    87      public String toString() {
    88          return value;
    89      }
    90  }