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apply(Map)   A
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↳ Parent: com.osomapps.pt.tokenemail.TemplateEngine.TemplateImpl

Complexity

Conditions 2

Size

Total Lines 17
Code Lines 16

Duplication

Lines 0
Ratio 0 %

Importance

Changes 2
Bugs 0 Features 0
Metric Value
eloc 16
dl 0
loc 17
rs 9.6
c 2
b 0
f 0
cc 2
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package com.osomapps.pt.tokenemail;
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import java.util.HashMap;

            


            
                                                                                                            
                            
            
                                    
            
            

                
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import java.util.Map;

            


            
                                                                                                            
                            
            
                                    
            
            

                
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final class TemplateEngine {

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    private static final String ALL_SYMBOLS = "([\\s\\S]+?)";

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    private static final Map<String, String> TEMPLATE_SETTINGS = new HashMap<>();

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    static {

            


            
                                                                                                            
                            
            
                                    
            
            

                
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        TEMPLATE_SETTINGS.put("evaluate", "\\{\\{" + ALL_SYMBOLS + "\\}\\}");

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    }

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    interface Template<F> {

            


            
                                                                                                            
                            
            
                                    
            
            

                
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        String apply(F arg);

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    }

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    static final class TemplateImpl<K, V> implements Template<Map<K, V>> {

            


            
                                                                                                            
                            
            
                                    
            
            

                
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        private final String template;

            


            
                                                                                                            
                            
            
                                    
            
            

                
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        TemplateImpl(String template) {

            


            
                                                                                                            
                            
            
                                    
            
            

                
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            this.template = template;

            


            
                                                                                                            
                            
            
                                    
            
            

                
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        }

            


            
                                                                                                            
                                                                
            
                                    
            
            

                
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        @Override

            


            
                                                                        
                            
            
                                    
            
            

                
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        public String apply(Map<K, V> value) {

            


            
                                                                        
                            
            
                                    
            
            

                
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            final String evaluate = TEMPLATE_SETTINGS.get("evaluate");

            


            
                                                                        
                            
            
                                    
            
            

                
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            String result = template;

            


            
                                                                        
                            
            
                                    
            
            

                
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            for (final Map.Entry<K, V> element : value.entrySet()) {

            


            
                                                                        
                            
            
                                    
            
            

                
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                result =

            


            
                                                                        
                            
            
                                    
            
            

                
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                        java.util.regex.Pattern.compile(

            


            
                                                                        
                            
            
                                    
            
            

                
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                                        evaluate.replace(

            


            
                                                                        
                            
            
                                    
            
            

                
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                                                ALL_SYMBOLS,

            


            
                                                                        
                            
            
                                    
            
            

                
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                                                "\\s*"

            


            
                                                                        
                            
            
                                    
            
            

                
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                                                        + java.util.regex.Pattern.quote(

            


            
                                                                        
                            
            
                                    
            
            

                
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                                                                String.valueOf(element.getKey()))

            


            
                                                                        
                            
            
                                    
            
            

                
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                                                        + "\\s*"))

            


            
                                                                        
                            
            
                                    
            
            

                
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                                .matcher(result)

            


            
                                                                        
                            
            
                                    
            
            

                
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                                .replaceAll(String.valueOf(element.getValue()));

            


            
                                                                        
                            
            
                                    
            
            

                
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            }

            


            
                                                                        
                            
            
                                    
            
            

                
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            return result;

            


            
                                                                                                            
                            
            
                                    
            
            

                
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        }

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    }

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    static <K, V> TemplateEngine.Template<Map<K, V>> template(final String template) {

            


            
                                                                                                            
                            
            
                                    
            
            

                
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        return new TemplateImpl<>(template);

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    }

            


            
                                                                                                            
                                                                
            
                                    
            
            

                
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}

            


            
                                                        
            
                                    
            
            

                
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