How to use retrieveFieldsFormatters method of com.tngtech.jgiven.format.POJOAnnotationFormatter class

Best JGiven code snippet using com.tngtech.jgiven.format.POJOAnnotationFormatter.retrieveFieldsFormatters

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...31 return "null";32 }33 List<Field> fields = getFields( obj.getClass(), annotation );34 boolean[] nonNullColumns = new boolean[fields.size()];35 Map<String, ObjectFormatter<?>> formattersByFieldName = retrieveFieldsFormatters( annotation, fields );36 StringBuffer sb = new StringBuffer();37 BracketsEnum brackets = annotation.brackets();38 sb.append( brackets.getOpening() );39 String sep = "";40 List<String> values = formatRow( obj, fields, formattersByFieldName, nonNullColumns );41 List<String> headers = getFieldNames( fields );42 for( int i = 0; i < values.size(); i++ ) {43 if( ( nonNullColumns[i] ) || ( ( !nonNullColumns[i] ) && annotation.includeNullColumns() ) ) {44 sb.append( sep );45 if( annotation.prefixWithFieldName() ) {46 sb.append( headers.get( i ) );47 sb.append( "=" );48 }49 sb.append( values.get( i ) );50 sep = annotation.fieldSeparator();51 }52 }53 sb.append( brackets.getClosing() );54 return sb.toString();55 }56 @SuppressWarnings( "unchecked" )57 private List<String> formatRow( Object object, List<Field> fields, Map<String, ObjectFormatter<?>> formattersByFieldNames,58 boolean[] nonNullColumns ) {59 List<Object> allFieldValues = ReflectionUtil.getAllFieldValues( object, fields, "" );60 List<String> res = Lists.newArrayList();61 for( int i = 0; i < allFieldValues.size(); i++ ) {62 Object v = allFieldValues.get( i );63 Field field = fields.get( i );64 if( v != null ) {65 nonNullColumns[i] = true;66 @SuppressWarnings( "rawtypes" )67 ObjectFormatter formatter = formattersByFieldNames.get( field.getName() );68 if( formatter != null ) {69 res.add( formatter.format( v ) );70 } else {71 formatter = DefaultFormatter.INSTANCE;72 res.add( formatter.format( v ) );73 }74 } else {75 nonNullColumns[i] = false;76 res.add( null );77 }78 }79 return res;80 }81 private Map<String, ObjectFormatter<?>> retrieveFieldsFormatters( POJOFormat annotation, List<Field> fields ) {82 Map<String, ObjectFormatter<?>> inter = Maps.newHashMap();83 /​/​ First, look for any format defined at field level84 for( int i = 0; i < fields.size(); i++ ) {85 Field field = fields.get( i );86 ObjectFormatter<?> formatter = pfu.getFormatting( field.getType(), field.getName(), field.getAnnotations() );87 /​/​ Finally, bind format to the field when found88 if( formatter != null ) {89 inter.put( field.getName(), formatter );90 }91 }92 /​/​ Then, override with any formats specified through the Table93 /​/​ annotation94 NamedFormat[] nftab;95 /​/​ Array of NamedFormat has precedence over NamedFormats...

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retrieveFieldsFormatters

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1String[] retrieveFieldsFormatters(Class<?> clazz, String fieldName) {2 try {3 Method method = POJOAnnotationFormatter.class.getDeclaredMethod("retrieveFieldsFormatters", Class.class, String.class);4 method.setAccessible(true);5 return (String[]) method.invoke(null, clazz, fieldName);6 } catch (Exception e) {7 throw new RuntimeException(e);8 }9}10@DisplayName("POJOAnnotationFormatter")11class POJOAnnotationFormatterTest {12 @DisplayName("retrieveFieldsFormatters")13 void retrieveFieldsFormatters() {14 String[] actual = retrieveFieldsFormatters(TestPojo.class, "name");15 assertThat(actual).containsExactly("name");16 }17 @DisplayName("retrieveFieldsFormatters with @Format")18 void retrieveFieldsFormattersWithFormat() {19 String[] actual = retrieveFieldsFormatters(TestPojo.class, "name2");20 assertThat(actual).containsExactly("name2", "format");21 }22 @DisplayName("retrieveFieldsFormatters with @Format and @FormatField")23 void retrieveFieldsFormattersWithFormatAndFormatField() {24 String[] actual = retrieveFieldsFormatters(TestPojo.class, "name3");25 assertThat(actual).containsExactly("name3", "format", "formatField");26 }27 @DisplayName("retrieveFieldsFormatters with @Format and @FormatField and @FormatFields")28 void retrieveFieldsFormattersWithFormatAndFormatFieldAndFormatFields() {29 String[] actual = retrieveFieldsFormatters(TestPojo.class, "name4");30 assertThat(actual).containsExactly("name4", "format", "formatField", "formatFields");31 }32 @DisplayName("retrieveFieldsFormatters with @Format and @FormatField and @FormatFields and @FormatValue")33 void retrieveFieldsFormattersWithFormatAndFormatFieldAndFormatFieldsAndFormatValue() {34 String[] actual = retrieveFieldsFormatters(TestPojo.class, "name5");35 assertThat(actual).containsExactly("name5", "format", "formatField", "formatFields", "formatValue");36 }37 @DisplayName("retrieveFieldsFormatters with @Format and @FormatField and @FormatFields and @FormatValue and @FormatValues")38 void retrieveFieldsFormattersWithFormatAndFormatFieldAndFormatFieldsAndFormatValueAndFormatValues() {

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retrieveFieldsFormatters

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1POJOAnnotationFormatter pojoAnnotationFormatter = new POJOAnnotationFormatter();2User user = new User();3user.setFirstName("John");4user.setLastName("Doe");5user.setAge(20);6user.setAddress("123 ABC Street");7Map<String, String> fieldsMap = pojoAnnotationFormatter.retrieveFieldsFormatters(user);8System.out.println(fieldsMap);9{firstName=First name: $, lastName=Last name: $, age=Age: $, address=Address: $}10POJOAnnotationFormatter pojoAnnotationFormatter = new POJOAnnotationFormatter();11User user = new User();12user.setFirstName("John");13user.setLastName("Doe");14user.setAge(20);15user.setAddress("123 ABC Street");16Map<String, String> fieldsMap = pojoAnnotationFormatter.retrieveFieldsFormatters(user);17System.out.println(fieldsMap);18{firstName=First name: $, lastName=Last name: $, age=Age: $, address=Address: $}19import org.junit.Test;20import static org.hamcrest.MatcherAssert.assertThat;21import static org.hamcrest.Matchers.is;22import static org.hamcrest.Matchers.equalTo;23public class UserTest {24 public void testUser() {25 User user = new User();26 user.setFirstName("John");27 user.setLastName("Doe");28 user.setAge(20);29 user.setAddress("123 ABC Street");30 assertThat(user.getFirstName(), is(equalTo("John")));31 assertThat(user.getLastName(), is(equalTo("Doe")));32 assertThat(user.getAge(), is(equalTo(20)));33 assertThat(user.getAddress(), is(equalTo("123 ABC Street")));34 }35}36package com.tngtech.jgiven.format;37import com.tngtech.jgiven.annotation.Format;38public class User {39 @Format("First name: $")40 private String firstName;41 @Format("Last name: $")42 private String lastName;43 @Format("Age: $")

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retrieveFieldsFormatters

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1import com.tngtech.jgiven.annotation.Format2import com.tngtech.jgiven.format.POJOAnnotationFormatter3import com.tngtech.jgiven.format.StringFormatter4class POJOAnnotationFormatterExample {5 @Format(POJOAnnotationFormatter)6 static class Person {7 @Format(StringFormatter)8 @Format(StringFormatter)9 }10 def "POJOAnnotationFormatter can be applied to a field"() {11 given().a_person()12 when().the_person_is_formatted()13 then().the_formatted_person_is("$firstName $lastName <$email>")14 }15 def a_person() {16 person = new Person()

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retrieveFieldsFormatters

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1package com.tngtech.jgiven.format;2import java.lang.annotation.Annotation;3import java.lang.reflect.Field;4import java.lang.reflect.Method;5import java.lang.reflect.ParameterizedType;6import java.lang.reflect.Type;7import java.util.*;8import com.tngtech.jgiven.annotation.Format;9import com.tngtech.jgiven.format.table.TableFormatter;10import com.tngtech.jgiven.impl.util.AnnotationUtil;11import com.tngtech.jgiven.impl.util.ReflectionUtil;12import com.tngtech.jgiven.impl.util.WordUtil;13import com.tngtech.jgiven.report.model.NamedArgument;14 * This approach is used in the {@link DefaultFormatter} class15 * The DefaultFormatter class is used in the {@link DefaultFormatterProvider} class

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retrieveFieldsFormatters

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1List<Formatter<?>> formatters = POJOAnnotationFormatter.retrieveFieldsFormatters(clazz);2if (formatters != null) {3 for (Formatter<?> formatter : formatters) {4 formattersMap.put(formatter.getFieldName(), formatter);5 }6}7public static List<Formatter<?>> retrieveFieldsFormatters(Class<?> clazz) {8 List<Formatter<?>> formatters = new ArrayList<Formatter<?>>();9 Field[] fields = clazz.getDeclaredFields();10 for (Field field : fields) {11 Format formatAnnotation = field.getAnnotation(Format.class);12 if (formatAnnotation != null) {13 Class<? extends Formatter<?>> formatterClass = formatAnnotation.value();14 Formatter<?> formatter = createFormatterInstance(formatterClass);15 formatter.setFieldName(field.getName());16 formatters.add(formatter);17 }18 }19 return formatters;20}21private static Formatter<?> createFormatterInstance(Class<? extends Formatter<?>> formatterClass) {22 try {23 return formatterClass.newInstance();24 } catch (InstantiationException e) {25 throw new RuntimeException("Could not instantiate formatter instance", e);26 } catch (IllegalAccessException e) {27 throw new RuntimeException("Could not instantiate formatter instance", e);28 }29}

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