org/sonews/util/StringTemplate.java
author cli
Thu Aug 06 18:41:34 2009 +0200 (2009-08-06)
changeset 6 dcc7e491fbc9
permissions -rw-r--r--
Removing doc subdir which resides now in sonews-doc repository.
     1 /*
     2  *   SONEWS News Server
     3  *   see AUTHORS for the list of contributors
     4  *
     5  *   This program is free software: you can redistribute it and/or modify
     6  *   it under the terms of the GNU General Public License as published by
     7  *   the Free Software Foundation, either version 3 of the License, or
     8  *   (at your option) any later version.
     9  *
    10  *   This program is distributed in the hope that it will be useful,
    11  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
    12  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    13  *   GNU General Public License for more details.
    14  *
    15  *   You should have received a copy of the GNU General Public License
    16  *   along with this program.  If not, see <http://www.gnu.org/licenses/>.
    17  */
    18 
    19 package org.sonews.util;
    20 
    21 import java.util.HashMap;
    22 import java.util.Map;
    23 
    24 /**
    25  * Class that allows simple String template handling.
    26  * @author Christian Lins
    27  * @since sonews/0.5.0
    28  */
    29 public class StringTemplate 
    30 {
    31 
    32   private String              str               = null;
    33   private String              templateDelimiter = "%";
    34   private Map<String, String> templateValues    = new HashMap<String, String>();
    35   
    36   public StringTemplate(String str, final String templateDelimiter)
    37   {
    38     if(str == null || templateDelimiter == null)
    39     {
    40       throw new IllegalArgumentException("null arguments not allowed");
    41     }
    42 
    43     this.str               = str;
    44     this.templateDelimiter = templateDelimiter;
    45   }
    46   
    47   public StringTemplate(String str)
    48   {
    49     this(str, "%");
    50   }
    51   
    52   public StringTemplate set(String template, String value)
    53   {
    54     if(template == null || value == null)
    55     {
    56       throw new IllegalArgumentException("null arguments not allowed");
    57     }
    58     
    59     this.templateValues.put(template, value);
    60     return this;
    61   }
    62   
    63   public StringTemplate set(String template, long value)
    64   {
    65     return set(template, Long.toString(value));
    66   }
    67   
    68   public StringTemplate set(String template, double value)
    69   {
    70     return set(template, Double.toString(value));
    71   }
    72   
    73   public StringTemplate set(String template, Object obj)
    74   {
    75     if(template == null || obj == null)
    76     {
    77       throw new IllegalArgumentException("null arguments not allowed");
    78     }
    79 
    80     return set(template, obj.toString());
    81   }
    82   
    83   @Override
    84   public String toString()
    85   {
    86     String ret = str;
    87 
    88     for(String key : this.templateValues.keySet())
    89     {
    90       String value = this.templateValues.get(key);
    91       ret = ret.replace(templateDelimiter + key, value);
    92     }
    93     
    94     return ret;
    95   }
    96 
    97 }