Coverage Report - org.apache.onami.configuration.variables.KeyAppender
 
Classes in this File Line Coverage Branch Coverage Complexity
KeyAppender
85%
30/35
53%
15/28
3.167
 
 1  
 package org.apache.onami.configuration.variables;
 2  
 
 3  
 /*
 4  
  * Licensed to the Apache Software Foundation (ASF) under one
 5  
  * or more contributor license agreements.  See the NOTICE file
 6  
  * distributed with this work for additional information
 7  
  * regarding copyright ownership.  The ASF licenses this file
 8  
  * to you under the Apache License, Version 2.0 (the
 9  
  * "License"); you may not use this file except in compliance
 10  
  * with the License.  You may obtain a copy of the License at
 11  
  *
 12  
  *   http://www.apache.org/licenses/LICENSE-2.0
 13  
  *
 14  
  * Unless required by applicable law or agreed to in writing,
 15  
  * software distributed under the License is distributed on an
 16  
  * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 17  
  * KIND, either express or implied.  See the License for the
 18  
  * specific language governing permissions and limitations
 19  
  * under the License.
 20  
  */
 21  
 
 22  
 import java.util.Map;
 23  
 
 24  
 /**
 25  
  * Appender which relies on another appender to provides a configuration key, and a fallback appender in case no
 26  
  * configuration value is found.
 27  
  *
 28  
  * @since 6.0
 29  
  */
 30  
 final class KeyAppender
 31  
     extends AbstractAppender
 32  
 {
 33  
 
 34  
     /** Appender which will resolve key (add the possibility for dynamic variable) */
 35  
     private final Appender key;
 36  
 
 37  
     /** Appender which will resolve default value */
 38  
     private Appender defaultValue;
 39  
 
 40  
     /** Parser to use if dynamic resolution is needed */
 41  
     private Parser parser;
 42  
 
 43  
     /**
 44  
      * Constructor for key without default value.
 45  
      *
 46  
      * @param parser The parser from which this appender has been created.
 47  
      * @param chunk
 48  
      * @param key Appender to resolve configuration key.
 49  
      */
 50  
     public KeyAppender( final Parser parser, final String chunk, final Appender key )
 51  
     {
 52  0
         this( parser, chunk, key, null );
 53  0
     }
 54  
 
 55  
     /**
 56  
      * Constructor for key without default value.
 57  
      *
 58  
      * @param parser The parser from which this appender has been created.
 59  
      * @param chunk
 60  
      * @param key Appender to resolve configuration key.
 61  
      * @param defaultValue Appender to resolve default value, may be null.
 62  
      */
 63  
     public KeyAppender( final Parser parser, final String chunk, final Appender key, final Appender defaultValue )
 64  
     {
 65  2482
         super( chunk );
 66  2482
         this.parser = parser;
 67  2482
         this.key = key;
 68  2482
         this.defaultValue = defaultValue;
 69  2482
     }
 70  
 
 71  
     /**
 72  
      * {@inheritDoc}
 73  
      */
 74  
     @Override
 75  
     public void doAppend( StringBuilder buffer, Map<String, String> configuration, Tree<Appender> context )
 76  
     {
 77  
         // Resolve key eventually
 78  35364
         StringBuilder keyBuffer = new StringBuilder();
 79  35364
         key.append( keyBuffer, configuration, context );
 80  35364
         String resolvedKey = keyBuffer.toString();
 81  
 
 82  35364
         String resolvedValue = configuration.get( resolvedKey );
 83  35364
         if ( resolvedValue != null )
 84  
         {
 85  
             // Resolved value from the configuration may have variable
 86  
             // unresolved
 87  19718
             Resolver value = parser.parse( resolvedValue );
 88  19718
             if ( !value.needsResolving() )
 89  
             {
 90  19690
                 buffer.append( resolvedValue );
 91  
 
 92  
             }
 93  
             // Process value
 94  
             else
 95  
             {
 96  28
                 if ( !( value instanceof Appender ) )
 97  
                 {
 98  0
                     resolvedValue = value.resolve( configuration );
 99  
                 }
 100  
                 else
 101  
                 {
 102  28
                     StringBuilder resolvedValueBuffer = new StringBuilder();
 103  28
                     ( (Appender) value ).append( resolvedValueBuffer, configuration, context );
 104  28
                     resolvedValue = resolvedValueBuffer.toString();
 105  
                 }
 106  
 
 107  28
                 buffer.append( resolvedValue );
 108  
                 // Update the configuration
 109  28
                 configuration.put( resolvedKey, resolvedValue );
 110  
             }
 111  19718
         }
 112  
         // No value found from configuration, take default one
 113  15646
         else if ( defaultValue != null )
 114  
         {
 115  14896
             defaultValue.append( buffer, configuration, context );
 116  
         }
 117  
         // Fallback, print original chunk, will let the possibility to resolve
 118  
         // it later
 119  
         else
 120  
         {
 121  750
             buffer.append( chunk );
 122  
         }
 123  35364
     }
 124  
 
 125  
     @Override
 126  
     public boolean equals( Object obj )
 127  
     {
 128  97796
         if ( obj == this )
 129  
         {
 130  0
             return true;
 131  
         }
 132  97796
         if ( obj instanceof KeyAppender )
 133  
         {
 134  20824
             KeyAppender other = (KeyAppender) obj;
 135  20824
             return ( key != null ? key.equals( other.key ) : other.key == null )
 136  
                 && ( defaultValue != null ? defaultValue.equals( other.defaultValue ) : other.defaultValue == null );
 137  
         }
 138  76972
         return false;
 139  
     }
 140  
 
 141  
     @Override
 142  
     public int hashCode()
 143  
     {
 144  0
         return ( key != null ? key.hashCode() : 0 ) + ( defaultValue != null ? defaultValue.hashCode() * 31 : 0 );
 145  
     }
 146  
 
 147  
     /**
 148  
      * @return Always true
 149  
      */
 150  
     public boolean needsResolving()
 151  
     {
 152  1164
         return true;
 153  
     }
 154  
 
 155  
 }