Merge branch 'master' into BAEL-981_pact

asciidoctor/README.md

@@ -0,0 +1,3 @@
+### Relevant articles
+
+- [Introduction to Asciidoctor](http://www.baeldung.com/introduction-to-asciidoctor)

asciidoctor/pom.xml

@@ -0,0 +1,56 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <parent>
+        <artifactId>parent-modules</artifactId>
+        <groupId>com.baeldung</groupId>
+        <version>1.0.0-SNAPSHOT</version>
+    </parent>
+    <modelVersion>4.0.0</modelVersion>
+
+    <artifactId>asciidoctor</artifactId>
+    <name>asciidoctor</name>
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.asciidoctor</groupId>
+                <artifactId>asciidoctor-maven-plugin</artifactId>
+                <version>1.5.5</version>
+                <dependencies>
+                    <dependency>
+                        <groupId>org.asciidoctor</groupId>
+                        <artifactId>asciidoctorj-pdf</artifactId>
+                        <version>1.5.0-alpha.15</version>
+                    </dependency>
+                </dependencies>
+                <executions>
+                    <execution>
+                        <id>output-pdf</id>
+                        <phase>generate-resources</phase>
+                        <goals>
+                            <goal>process-asciidoc</goal>
+                        </goals>
+                    </execution>
+                </executions>
+                <configuration>
+                    <sourceDirectory>src/docs/asciidoc</sourceDirectory>
+                    <outputDirectory>target/docs/asciidoc</outputDirectory>
+                    <backend>pdf</backend>
+                </configuration>
+            </plugin>
+        </plugins>
+    </build>
+
+    <dependencies>        
+        <dependency>
+            <groupId>org.asciidoctor</groupId>
+            <artifactId>asciidoctorj</artifactId>
+            <version>1.5.4</version>
+        </dependency>
+        <dependency>
+            <groupId>org.asciidoctor</groupId>
+            <artifactId>asciidoctorj-pdf</artifactId>
+            <version>1.5.0-alpha.11</version>
+        </dependency>        
+    </dependencies>
+</project>

core-java/src/test/java/com/baeldung/string/StringToCharStreamUnitTest.java

@@ -12,7 +12,6 @@ import static org.hamcrest.CoreMatchers.instanceOf;
 import static org.junit.Assert.assertEquals;
 import static org.junit.Assert.assertNotNull;
 import static org.junit.Assert.assertThat;
-import static org.junit.Assert.assertTrue;
 
 public class StringToCharStreamUnitTest {
 
@@ -44,7 +43,6 @@ public class StringToCharStreamUnitTest {
           .mapToObj(c -> (char) c);
         Stream<Character> characterStream1 = testString.codePoints()
           .mapToObj(c -> (char) c);
-
         assertNotNull("IntStream returned by chars() did not map to Stream<Character>", characterStream);
         assertNotNull("IntStream returned by codePoints() did not map to Stream<Character>", characterStream1);
     }

libraries/pom.xml

@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <parent>
         <artifactId>parent-modules</artifactId>
         <groupId>com.baeldung</groupId>
@@ -59,7 +59,7 @@
                     <props>${basedir}/datanucleus.properties</props>
                     <log4jConfiguration>${basedir}/log4j.properties</log4jConfiguration>
                     <verbose>true</verbose>
-		    <fork>false</fork>   <!-- Solve windows line too long error -->
+                    <fork>false</fork>   <!-- Solve windows line too long error -->
                 </configuration>
                 <executions>
                     <execution>
@@ -70,32 +70,6 @@
                     </execution>
                 </executions>
             </plugin>
-            <plugin>
-                <groupId>org.asciidoctor</groupId>
-                <artifactId>asciidoctor-maven-plugin</artifactId>
-                <version>1.5.5</version>
-                <dependencies>
-                    <dependency>
-                        <groupId>org.asciidoctor</groupId>
-                        <artifactId>asciidoctorj-pdf</artifactId>
-                        <version>1.5.0-alpha.15</version>
-                    </dependency>
-                </dependencies>
-                <executions>
-                    <execution>
-                        <id>output-pdf</id>
-                        <phase>generate-resources</phase>
-                        <goals>
-                            <goal>process-asciidoc</goal>
-                        </goals>
-                    </execution>
-                </executions>
-                <configuration>
-                    <sourceDirectory>src/docs/asciidoc</sourceDirectory>
-                    <outputDirectory>target/docs/asciidoc</outputDirectory>
-                    <backend>pdf</backend>
-                </configuration>
-            </plugin>
         </plugins>
     </build>
 
@@ -107,15 +81,20 @@
             <version>${cglib.version}</version>
         </dependency>
         <dependency>
-			      <groupId>commons-beanutils</groupId>
-			      <artifactId>commons-beanutils</artifactId>
-			      <version>${commons-beanutils.version}</version>
-		    </dependency>
+            <groupId>commons-beanutils</groupId>
+            <artifactId>commons-beanutils</artifactId>
+            <version>${commons-beanutils.version}</version>
+        </dependency>
         <dependency>
             <groupId>org.apache.commons</groupId>
             <artifactId>commons-lang3</artifactId>
             <version>${commons-lang.version}</version>
         </dependency>
+        <dependency>
+            <groupId>org.apache.commons</groupId>
+            <artifactId>commons-collections4</artifactId>
+            <version>${commons.collections.version}</version>
+        </dependency>
         <dependency>
             <groupId>org.jasypt</groupId>
             <artifactId>jasypt</artifactId>
@@ -211,12 +190,6 @@
             <artifactId>serenity-core</artifactId>
             <version>${serenity.version}</version>
             <scope>test</scope>
-            <exclusions>
-    	        <exclusion>
-                    <groupId>org.asciidoctor</groupId>
-                    <artifactId>asciidoctor-java-integration</artifactId>
-                </exclusion>
-            </exclusions>
         </dependency>
         <dependency>
             <groupId>net.serenity-bdd</groupId>
@@ -272,7 +245,7 @@
             <groupId>org.datanucleus</groupId>
             <artifactId>datanucleus-maven-plugin</artifactId>
             <version>5.0.2</version>
-	    </dependency>
+        </dependency>
         <dependency>
             <groupId>org.datanucleus</groupId>
             <artifactId>datanucleus-xml</artifactId>
@@ -324,11 +297,11 @@
             <version>1.4.195</version>
         </dependency>
         <dependency>
-    		    <groupId>pl.pragmatists</groupId>
-		        <artifactId>JUnitParams</artifactId>
-			      <version>${jUnitParams.version}</version>
-			      <scope>test</scope>
-		    </dependency>
+            <groupId>pl.pragmatists</groupId>
+            <artifactId>JUnitParams</artifactId>
+            <version>${jUnitParams.version}</version>
+            <scope>test</scope>
+        </dependency>
         <dependency>
             <groupId>org.quartz-scheduler</groupId>
             <artifactId>quartz</artifactId>
@@ -360,22 +333,18 @@
             <artifactId>netty-all</artifactId>
             <version>${netty.version}</version>
         </dependency>
-        <dependency>
-            <groupId>org.asciidoctor</groupId>
-            <artifactId>asciidoctorj</artifactId>
-            <version>1.5.4</version>
-        </dependency>
-        <dependency>
-            <groupId>org.asciidoctor</groupId>
-            <artifactId>asciidoctorj-pdf</artifactId>
-            <version>1.5.0-alpha.11</version>
-        </dependency>        
-	<!-- OpenNLP -->
+        <!-- OpenNLP -->
         <dependency>
             <groupId>org.apache.opennlp</groupId>
             <artifactId>opennlp-tools</artifactId>
             <version>1.8.0</version>
         </dependency>
+        <dependency>
+            <groupId>junit</groupId>
+            <artifactId>junit</artifactId>
+            <version>${junit.version}</version>
+            <scope>test</scope>
+        </dependency>
         <dependency>
             <groupId>info.debatty</groupId>
             <artifactId>java-lsh</artifactId>
@@ -392,14 +361,12 @@
             <artifactId>groovy-all</artifactId>
             <version>2.4.10</version>
         </dependency>
-
-
     </dependencies>
     <properties>
         <multiverse.version>0.7.0</multiverse.version>
         <cglib.version>3.2.4</cglib.version>
         <commons-lang.version>3.5</commons-lang.version>
-		    <commons-beanutils.version>1.9.3</commons-beanutils.version>
+        <commons-beanutils.version>1.9.3</commons-beanutils.version>
         <jasypt.version>1.9.2</jasypt.version>
         <javatuples.version>1.2</javatuples.version>
         <javaassist.version>3.21.0-GA</javaassist.version>
@@ -420,6 +387,8 @@
         <serenity.plugin.version>1.4.0</serenity.plugin.version>
         <jUnitParams.version>1.1.0</jUnitParams.version>
         <netty.version>4.1.10.Final</netty.version>
+        <commons.collections.version>4.1</commons.collections.version>
+        <junit.version>4.12</junit.version>
         <java-lsh.version>0.10</java-lsh.version>
         <pact.version>3.5.0</pact.version>
     </properties>

libraries/src/test/java/com/baeldung/commons/collections/SetUtilsUnitTest.java

@@ -0,0 +1,83 @@
+package com.baeldung.commons.collections;
+
+import org.apache.commons.collections4.SetUtils;
+import org.apache.commons.collections4.set.TransformedSet;
+import org.junit.Test;
+
+import java.util.Arrays;
+import java.util.HashSet;
+import java.util.Set;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertTrue;
+
+/**
+ * Created by smatt on 21/06/2017.
+ */
+public class SetUtilsUnitTest {
+
+    @Test(expected = IllegalArgumentException.class)
+    public void givenSetAndPredicate_whenPredicatedSet_thenValidateSet_and_throw_IllegalArgumentException() {
+        Set<String> sourceSet = new HashSet<>();
+        sourceSet.addAll(Arrays.asList("London", "Lagos", "Err Source1"));
+        Set<String> validatingSet
+          = SetUtils.predicatedSet(sourceSet, (s) -> s.startsWith("L"));
+        validatingSet.add("Err Source2");
+    }
+
+    @Test
+    public void givenTwoSets_whenDifference_thenSetView() {
+        Set<Integer> a = new HashSet<>(Arrays.asList(1,2,5));
+        Set<Integer> b = new HashSet<>(Arrays.asList(1,2));
+        SetUtils.SetView<Integer> result = SetUtils.difference(a, b);
+        assertTrue(result.size() == 1 && result.contains(5));
+    }
+
+    @Test
+    public void givenTwoSets_whenUnion_thenUnionResult() {
+        Set<Integer> a = new HashSet<>(Arrays.asList(1,2,5));
+        Set<Integer> b = new HashSet<>(Arrays.asList(1,2));
+        Set<Integer> expected = new HashSet<>(Arrays.asList(1,2,5));
+        SetUtils.SetView<Integer> union = SetUtils.union(a, b);
+        assertTrue(SetUtils.isEqualSet(expected, union));
+    }
+
+    @Test
+    public void givenTwoSets_whenIntersection_thenIntersectionResult() {
+        Set<Integer> a = new HashSet<>(Arrays.asList(1,2,5));
+        Set<Integer> b = new HashSet<>(Arrays.asList(1,2));
+        Set<Integer> expected = new HashSet<>(Arrays.asList(1,2));
+        SetUtils.SetView<Integer> intersect = SetUtils.intersection(a, b);
+        assertTrue(SetUtils.isEqualSet(expected, intersect));
+    }
+
+    @Test
+    public void givenSet_whenTransformedSet_thenTransformedResult() {
+        Set<Integer> a = SetUtils.transformedSet(new HashSet<>(), (e) -> e * 2  );
+        a.add(2);
+        assertEquals(a.toArray()[0], 4);
+
+        Set<Integer> source = new HashSet<>(Arrays.asList(1));
+        Set<Integer> newSet = TransformedSet.transformedSet(source, (e) -> e * 2);
+        assertEquals(newSet.toArray()[0], 2);
+        assertEquals(source.toArray()[0], 2);
+    }
+
+    @Test
+    public void givenTwoSet_whenDisjunction_thenDisjunctionSet() {
+        Set<Integer> a = new HashSet<>(Arrays.asList(1,2,5));
+        Set<Integer> b = new HashSet<>(Arrays.asList(1,2,3));
+        SetUtils.SetView<Integer> result = SetUtils.disjunction(a, b);
+        assertTrue(result.toSet().contains(5) && result.toSet().contains(3));
+    }
+
+    @Test
+    public void givenSet_when_OrderedSet_thenMaintainElementOrder() {
+        Set<Integer> set = new HashSet<>(Arrays.asList(10,1,5));
+        System.out.println("unordered set: " + set);
+
+        Set<Integer> orderedSet = SetUtils.orderedSet(new HashSet<>());
+        orderedSet.addAll(Arrays.asList(10,1,5));
+        System.out.println("ordered set = " + orderedSet);
+    }
+}

libraries/src/test/java/com/baeldung/commons/collections/orderedmap/OrderedMapUnitTest.java

@@ -1,5 +1,10 @@
 package com.baeldung.commons.collections.orderedmap;
 
+import static org.junit.Assert.assertEquals;
+
+import java.util.ArrayList;
+import java.util.List;
+
 import org.apache.commons.collections4.OrderedMap;
 import org.apache.commons.collections4.OrderedMapIterator;
 import org.apache.commons.collections4.map.LinkedMap;
@@ -7,11 +12,6 @@ import org.apache.commons.collections4.map.ListOrderedMap;
 import org.junit.Before;
 import org.junit.Test;
 
-import java.util.ArrayList;
-import java.util.List;
-
-import static org.junit.Assert.assertEquals;
-
 public class OrderedMapUnitTest {
 
     private String[] names = {"Emily", "Mathew", "Rose", "John", "Anna"};
@@ -45,11 +45,12 @@ public class OrderedMapUnitTest {
         // as defined in the constant arrays of names and ages:
 
         OrderedMapIterator<String, Integer> runnersIterator = this.runnersLinkedMap.mapIterator();
-        for (int i = 0; runnersIterator.hasNext(); i++) {
+        int i = 0;
+        while (runnersIterator.hasNext()) {
             runnersIterator.next();
-
             assertEquals(runnersIterator.getKey(), this.names[i]);
             assertEquals(runnersIterator.getValue(), this.ages[i]);
+            i++;
         }
     }
 
@@ -59,11 +60,12 @@ public class OrderedMapUnitTest {
         // as defined in the constant arrays of names and ages:
 
         OrderedMapIterator<String, Integer> runnersIterator = this.runnersListOrderedMap.mapIterator();
-        for (int i = 0; runnersIterator.hasNext(); i++) {
+        int i = 0;
+        while (runnersIterator.hasNext()) {
             runnersIterator.next();
-
             assertEquals(runnersIterator.getKey(), this.names[i]);
             assertEquals(runnersIterator.getValue(), this.ages[i]);
+            i++;
         }
     }
 
@@ -73,9 +75,11 @@ public class OrderedMapUnitTest {
         // as defined in the constant arrays of names and ages
 
         String name = this.runnersLinkedMap.firstKey();
-        for (int i = 0; name != null; i++) {
+        int i = 0;
+        while (name != null) {
             assertEquals(name, this.names[i]);
             name = this.runnersLinkedMap.nextKey(name);
+            i++;
         }
     }
 
@@ -85,9 +89,11 @@ public class OrderedMapUnitTest {
         // as defined in the constant arrays of names and ages
 
         String name = this.runnersListOrderedMap.firstKey();
-        for (int i = 0; name != null; i++) {
+        int i = 0;
+        while (name != null) {
             assertEquals(name, this.names[i]);
             name = this.runnersListOrderedMap.nextKey(name);
+            i++;
         }
     }
 
@@ -97,9 +103,11 @@ public class OrderedMapUnitTest {
         // as defined in the constant arrays of names and ages
 
         String name = this.runnersLinkedMap.lastKey();
-        for (int i = RUNNERS_COUNT - 1; name != null; i--) {
+        int i = RUNNERS_COUNT - 1;
+        while (name != null) {
             assertEquals(name, this.names[i]);
             name = this.runnersLinkedMap.previousKey(name);
+            i--;
         }
     }
 
@@ -109,9 +117,11 @@ public class OrderedMapUnitTest {
         // as defined in the constant arrays of names and ages
 
         String name = this.runnersListOrderedMap.lastKey();
-        for (int i = RUNNERS_COUNT - 1; name != null; i--) {
+        int i = RUNNERS_COUNT - 1;
+        while (name != null) {
             assertEquals(name, this.names[i]);
             name = this.runnersListOrderedMap.previousKey(name);
+            i--;
         }
     }
 

libraries/src/test/java/com/baeldung/serenity/spring/AdderClassDirtiesContextIntegrationTest.java

@@ -14,23 +14,21 @@ import org.springframework.test.context.ContextConfiguration;
 import static com.baeldung.serenity.spring.RandomNumberUtil.randomInt;
 import static org.springframework.test.annotation.DirtiesContext.ClassMode.AFTER_CLASS;
 
-/**
- * @author aiet
- */
-
 @RunWith(Suite.class)
 @Suite.SuiteClasses({
-                      AdderClassDirtiesContextIntegrationTest.DirtiesContextTest.class, AdderClassDirtiesContextIntegrationTest.AnotherDirtiesContextTest.class
-                    })
+  AdderClassDirtiesContextIntegrationTest.DirtiesContextTest.class, AdderClassDirtiesContextIntegrationTest.AnotherDirtiesContextTest.class
+})
 public class AdderClassDirtiesContextIntegrationTest {
 
     @RunWith(SerenityRunner.class)
     @ContextConfiguration(classes = AdderService.class)
     public static abstract class Base {
 
-        @Steps AdderServiceSteps adderServiceSteps;
+        @Steps
+        AdderServiceSteps adderServiceSteps;
 
-        @ClassRule public static SpringIntegrationClassRule springIntegrationClassRule = new SpringIntegrationClassRule();
+        @ClassRule
+        public static SpringIntegrationClassRule springIntegrationClassRule = new SpringIntegrationClassRule();
 
         void whenAccumulate_thenSummedUp() {
             adderServiceSteps.whenAccumulate();

libraries/src/test/java/com/baeldung/serenity/spring/AdderTest.java

@@ -6,13 +6,11 @@ import org.jbehave.core.annotations.BeforeStory;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.test.context.ContextConfiguration;
 
-/**
- * @author aiet
- */
-@ContextConfiguration(classes = { AdderController.class, AdderService.class })
+@ContextConfiguration(classes = {AdderController.class, AdderService.class})
 public class AdderTest extends SerenityStory {
 
-    @Autowired private AdderService adderService;
+    @Autowired
+    private AdderService adderService;
 
     @BeforeStory
     public void init() {

metrics/src/test/java/com/baeldung/metrics/servo/MetricTypeTest.java

@@ -5,10 +5,10 @@ import com.netflix.servo.stats.StatsConfig;
 import org.junit.Ignore;
 import org.junit.Test;
 
-import java.util.HashMap;
 import java.util.Map;
 
 import static java.util.concurrent.TimeUnit.SECONDS;
+import static java.util.stream.Collectors.toMap;
 import static org.hamcrest.Matchers.*;
 import static org.junit.Assert.assertEquals;
 import static org.junit.Assert.assertThat;
@@ -123,15 +123,14 @@ public class MetricTypeTest {
           .getTotalTime()
           .intValue());
 
-        final Map<String, Long> metricMap = new HashMap<>(3);
-        timer
+        final Map<String, Long> metricMap = timer
           .getMonitors()
           .stream()
           .filter(monitor -> monitor
             .getConfig()
             .getTags()
             .containsKey("servo.bucket"))
-          .forEach(monitor -> metricMap.put(getMonitorTagValue(monitor, "servo.bucket"), (Long) monitor.getValue()));
+          .collect(toMap(monior -> getMonitorTagValue(monior, "servo.bucket"), monitor -> (Long) monitor.getValue()));
 
         assertThat(metricMap, allOf(hasEntry("bucket=2s", 0L), hasEntry("bucket=5s", 1L), hasEntry("bucket=overflow", 1L)));
     }
@@ -177,10 +176,10 @@ public class MetricTypeTest {
           .getValue()
           .intValue());
 
-        final Map<String, Number> metricMap = new HashMap<>(10);
-        timer
+        final Map<String, Number> metricMap = timer
           .getMonitors()
-          .forEach(monitor -> metricMap.put(getMonitorTagValue(monitor, "statistic"), (Number) monitor.getValue()));
+          .stream()
+          .collect(toMap(monitor -> getMonitorTagValue(monitor, "statistic"), monitor -> (Number) monitor.getValue()));
 
         assertThat(metricMap.keySet(), containsInAnyOrder("count", "totalTime", "max", "min", "variance", "stdDev", "avg", "percentile_99", "percentile_95", "percentile_90"));
     }