diff --git a/looptest.iml b/looptest.iml
index 7f2d304..e34277e 100644
--- a/looptest.iml
+++ b/looptest.iml
@@ -10,10 +10,10 @@
-
+
-
-
-
+
+
+
\ No newline at end of file
diff --git a/src/main/java/com/zipcodewilmington/streams/StreamFilter.java b/src/main/java/com/zipcodewilmington/streams/StreamFilter.java
index d8b89ae..d2c1977 100644
--- a/src/main/java/com/zipcodewilmington/streams/StreamFilter.java
+++ b/src/main/java/com/zipcodewilmington/streams/StreamFilter.java
@@ -5,6 +5,9 @@
import com.zipcodewilmington.streams.tools.RandomUtils;
import com.zipcodewilmington.streams.tools.StringUtils;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.Collections;
import java.util.List;
import java.util.stream.Collectors;
import java.util.stream.Stream;
@@ -20,7 +23,14 @@ public class StreamFilter {
* No arg constructor
*/ //TODO - construct person stream of 100 person objects; startingCharacter is a random capital letter
public StreamFilter() {
- this(Stream.empty(), null);
+ PersonFactory factory = new PersonFactory();
+ List list = new ArrayList<>();
+ Collections.nCopies(100, 1)
+ .stream()
+ .forEach(i -> list.add(factory.createRandomPerson()));
+ personStream = list.stream();
+ startingCharacter = RandomUtils.createCharacter('A', 'Z').toString();
+
}
/**
@@ -28,7 +38,7 @@ public StreamFilter() {
* @param startingCharacter - character to filter by
*/ //TODO
public StreamFilter(Person[] people, Character startingCharacter) {
- this(Stream.empty(), null);
+ this(Arrays.stream(people), startingCharacter);
}
/**
@@ -36,7 +46,7 @@ public StreamFilter(Person[] people, Character startingCharacter) {
* @param startingCharacter - character to filter by
*/ //TODO
public StreamFilter(List people, Character startingCharacter) {
- this(Stream.empty(), null);
+ this(people.stream(), startingCharacter);
}
@@ -55,7 +65,9 @@ public StreamFilter(Stream people, Character startingCharacter) {
* @return a list of person object whose name starts with `this.startingCharacter`
*/ //TODO
public List toListMultiLine() {
- return null;
+ return personStream
+ .filter(person ->startingCharacter.equals(person.getName().charAt(0)))
+ .collect(Collectors.toList());
}
@@ -64,7 +76,9 @@ public List toListMultiLine() {
* @return a list of person objects whose name starts with `this.startingCharacter`
*/ //TODO
public List toListOneLine() {
- return null;
+ return personStream
+ .filter(person ->startingCharacter.equals(person.getName().charAt(0)))
+ .collect(Collectors.toList());
}
@@ -73,7 +87,9 @@ public List toListOneLine() {
* @return an array of person object whose name starts with `this.startingCharacter`
*/ //TODO
public Person[] toArrayOneLine() {
- return null;
+ return personStream
+ .filter((person) -> startingCharacter.equals(person.getName().charAt(0)))
+ .collect(Collectors.toList()).toArray(new Person[0]);
}
@@ -82,7 +98,9 @@ public Person[] toArrayOneLine() {
* @return an array of person object whose name starts with `this.startingCharacter`
*/ //TODO
public Person[] toArrayMultiLine() {
- return null;
+ return personStream
+ .filter((person) -> startingCharacter.equals(person.getName().charAt(0)))
+ .collect(Collectors.toList()).toArray(new Person[0]);
}
}
diff --git a/src/main/java/com/zipcodewilmington/streams/anthropoid/PersonFactory.java b/src/main/java/com/zipcodewilmington/streams/anthropoid/PersonFactory.java
index a10ec7b..369ba17 100644
--- a/src/main/java/com/zipcodewilmington/streams/anthropoid/PersonFactory.java
+++ b/src/main/java/com/zipcodewilmington/streams/anthropoid/PersonFactory.java
@@ -3,8 +3,8 @@
import com.zipcodewilmington.streams.tools.RandomUtils;
import com.zipcodewilmington.streams.tools.StringUtils;
-import java.util.Date;
-import java.util.List;
+import java.util.*;
+import java.util.function.Supplier;
import java.util.stream.Collectors;
import java.util.stream.Stream;
@@ -39,7 +39,11 @@ public Person createRandomPerson() {
* @return - ArrayList of Person objects
*/ // TODO
public List createPersonList(int listSize) {
- return null;
+ List list = new ArrayList<>();
+ Collections.nCopies(listSize, 1)
+ .stream()
+ .forEach(i -> list.add(createRandomPerson()));
+ return list;
}
@@ -48,7 +52,10 @@ public List createPersonList(int listSize) {
* @return - Array of Person objects
*/ // TODO
public Person[] createPersonArray(int arrayLength) {
- return null;
+ return Stream
+ .generate(this::createRandomPerson)
+ .limit(arrayLength)
+ .collect(Collectors.toList()).toArray(new Person[0]);
}
@@ -59,6 +66,9 @@ public Person[] createPersonArray(int arrayLength) {
* @return - Stream representation of collection of Person objects
*/ // TODO
public Stream createPersonStream(int streamCount) {
- return null;
+ List list = this.createPersonList(streamCount);
+ return list.stream();
}
+
+
}
diff --git a/src/main/java/com/zipcodewilmington/streams/anthropoid/PersonWarehouse.java b/src/main/java/com/zipcodewilmington/streams/anthropoid/PersonWarehouse.java
index a4960b1..db83f43 100644
--- a/src/main/java/com/zipcodewilmington/streams/anthropoid/PersonWarehouse.java
+++ b/src/main/java/com/zipcodewilmington/streams/anthropoid/PersonWarehouse.java
@@ -4,10 +4,7 @@
import com.zipcodewilmington.streams.tools.logging.LoggerHandler;
import com.zipcodewilmington.streams.tools.logging.LoggerWarehouse;
-import java.util.ArrayList;
-import java.util.Iterator;
-import java.util.List;
-import java.util.Map;
+import java.util.*;
import java.util.stream.Collectors;
import java.util.stream.Stream;
@@ -36,7 +33,12 @@ public void addPerson(Person person) {
* @return list of names of Person objects
*/ // TODO
public List getNames() {
- return null;
+ List list =
+ this.people
+ .stream()
+ .map(Person::getName)
+ .collect(Collectors.toList());
+ return list;
}
@@ -44,7 +46,21 @@ public List getNames() {
* @return list of uniquely named Person objects
*/ //TODO
public Stream getUniquelyNamedPeople() {
- return null;
+ List namesList = getNames()
+ .stream()
+ .distinct()
+ .collect(Collectors.toList());
+ List uniquelyNamePeople = new ArrayList<>();
+
+ people.stream()
+ .forEach(person ->{
+ if(namesList.contains(person.getName())){
+ uniquelyNamePeople.add(person);
+ namesList.remove(person.getName());
+ }
+ });
+ Stream resultStream = uniquelyNamePeople.stream();
+ return resultStream;
}
@@ -53,7 +69,10 @@ public Stream getUniquelyNamedPeople() {
* @return a Stream of respective
*/ //TODO
public Stream getUniquelyNamedPeopleStartingWith(Character character) {
- return null;
+ List uniquelyNamedPeople = getUniquelyNamedPeople()
+ .collect(Collectors.toList());
+ return uniquelyNamedPeople.stream()
+ .filter(person -> person.getName().charAt(0) == character);
}
/**
@@ -61,14 +80,17 @@ public Stream getUniquelyNamedPeopleStartingWith(Character character) {
* @return a Stream of respective
*/ //TODO
public Stream getFirstNUniquelyNamedPeople(int n) {
- return null;
+ return getUniquelyNamedPeople()
+ .limit(n);
}
/**
* @return a mapping of Person Id to the respective Person name
*/ // TODO
public Map getIdToNameMap() {
- return null;
+ return people
+ .stream()
+ .collect(Collectors.toMap(Person::getPersonalId, Person::getName));
}
@@ -76,7 +98,16 @@ public Map getIdToNameMap() {
* @return Stream of Stream of Aliases
*/ // TODO
public Stream> getNestedAliases() {
- return null;
+// //List aliases = people
+// String[] aliases = people
+// .stream()
+// .map(Person::getAliases)
+// //.collect(Collectors.toList());
+// //.toArray(new String[0]);
+// .toArray(String[]::new);
+// Stream resultStream = (Stream) Stream.of(aliases)//Arrays.stream(aliases)
+// .map(element -> Stream.of(element));
+ return Stream.of(getAllAliases());
}
@@ -84,7 +115,14 @@ public Stream> getNestedAliases() {
* @return Stream of all Aliases
*/ // TODO
public Stream getAllAliases() {
- return null;
+ return people
+ .stream()
+ .map(Person::getAliases)
+ //.forEach(alias -> alias.);
+ .collect(Collectors.toList())
+ //.toArray(new String[0])
+ .stream()
+ .flatMap(index -> Stream.of(index));
}
// DO NOT MODIFY
diff --git a/src/main/java/com/zipcodewilmington/streams/conversions/ArrayConverter.java b/src/main/java/com/zipcodewilmington/streams/conversions/ArrayConverter.java
index 0a9d4d8..24b2170 100644
--- a/src/main/java/com/zipcodewilmington/streams/conversions/ArrayConverter.java
+++ b/src/main/java/com/zipcodewilmington/streams/conversions/ArrayConverter.java
@@ -12,6 +12,7 @@
* Created by leon on 5/25/17.
*/
public final class ArrayConverter extends PersonConversionAgent {
+ private Person[] peopleArray = super.objectSequence;
public ArrayConverter(Person... people) {
super(people);
}
@@ -25,16 +26,17 @@ public ArrayConverter(int collectionSize) {
//TODO
public List toList() {
- return null;
+ return toStream()
+ .collect(Collectors.toList());
}
//TODO
public Stream toStream() {
- return null;
+ return Arrays.stream(peopleArray);
}
@Override
public Person[] toArray() {
- return super.objectSequence;
+ return peopleArray;
}
}
diff --git a/src/main/java/com/zipcodewilmington/streams/conversions/ListConverter.java b/src/main/java/com/zipcodewilmington/streams/conversions/ListConverter.java
index b64540b..e378be7 100644
--- a/src/main/java/com/zipcodewilmington/streams/conversions/ListConverter.java
+++ b/src/main/java/com/zipcodewilmington/streams/conversions/ListConverter.java
@@ -11,6 +11,7 @@
* Created by leon on 5/25/17.
*/
public final class ListConverter extends PersonConversionAgent> {
+ List peopleList = super.objectSequence;
public ListConverter(List people) {
super(people);
}
@@ -29,11 +30,13 @@ public List toList() {
//TODO
public Stream toStream() {
- return null;
+ return peopleList.stream();
}
//TODO
public Person[] toArray() {
- return null;
+ return peopleList
+ .stream()
+ .toArray(Person[]::new);
}
}
diff --git a/src/main/java/com/zipcodewilmington/streams/conversions/StreamConverter.java b/src/main/java/com/zipcodewilmington/streams/conversions/StreamConverter.java
index 159d048..6d49a1d 100644
--- a/src/main/java/com/zipcodewilmington/streams/conversions/StreamConverter.java
+++ b/src/main/java/com/zipcodewilmington/streams/conversions/StreamConverter.java
@@ -25,16 +25,16 @@ public StreamConverter(int collectionSize) {
// TODO
public List toList() {
- return null;
+ return personList;
}
// TODO
public Stream toStream() {
- return null;
+ return this.personList.stream();
}
// TODO
public Person[] toArray() {
- return null;
+ return personList.toArray(new Person[0]);
}
}