diff options
| author | Michael Williamson <mike@zwobble.org> | 2016-03-26 17:57:45 +0000 |
|---|---|---|
| committer | Michael Williamson <mike@zwobble.org> | 2016-03-26 17:57:45 +0000 |
| commit | 581aec7d05f06456a384aa9adef7d781a666bf91 (patch) | |
| tree | 58bdd3c3de41a3b8c4886b23fc368be47d4486e2 /src/main/java/org/zwobble/mammoth/internal/util/MammothMaps.java | |
| parent | 3f978b230ce8f5713be07b5dec2f0ccebacbda71 (diff) | |
Remove Mammoth prefix from util classes
Diffstat (limited to 'src/main/java/org/zwobble/mammoth/internal/util/MammothMaps.java')
| -rw-r--r-- | src/main/java/org/zwobble/mammoth/internal/util/MammothMaps.java | 97 |
1 files changed, 0 insertions, 97 deletions
diff --git a/src/main/java/org/zwobble/mammoth/internal/util/MammothMaps.java b/src/main/java/org/zwobble/mammoth/internal/util/MammothMaps.java deleted file mode 100644 index d3ba8c5..0000000 --- a/src/main/java/org/zwobble/mammoth/internal/util/MammothMaps.java +++ /dev/null @@ -1,97 +0,0 @@ -package org.zwobble.mammoth.internal.util; - -import java.util.*; -import java.util.function.Function; - -public class MammothMaps { - public static <K, V> Map<K, V> map() { - return Collections.emptyMap(); - } - - public static <K, V> Map<K, V> map(K key1, V value1) { - return Collections.singletonMap(key1, value1); - } - - public static <K, V> Map<K, V> map(K key1, V value1, K key2, V value2) { - Map<K, V> map = new HashMap<>(); - map.put(key1, value1); - map.put(key2, value2); - return map; - } - - public static <K, V> Map<K, V> map(K key1, V value1, K key2, V value2, K key3, V value3) { - Map<K, V> map = new HashMap<>(); - map.put(key1, value1); - map.put(key2, value2); - map.put(key3, value3); - return map; - } - - public static <K, V> Map.Entry<K, V> entry(K key, V value) { - return new AbstractMap.SimpleImmutableEntry<K, V>(key, value); - } - - public static <K, V> Optional<V> lookup(Map<K, V> map, K key) { - return Optional.ofNullable(map.get(key)); - } - - public static <T, K> Map<K, T> toMapWithKey(Iterable<T> iterable, Function<T, K> function) { - return toMap(iterable, element -> entry(function.apply(element), element)); - } - - public static <T, K, V> Map<K, V> toMap(Iterable<T> iterable, Function<T, Map.Entry<K, V>> function) { - Map<K, V> map = new HashMap<>(); - for (T element : iterable) { - Map.Entry<K, V> entry = function.apply(element); - map.put(entry.getKey(), entry.getValue()); - } - return map; - } - - public static <T, K> Map<K, List<T>> toMultiMapWithKey(Iterable<T> iterable, Function<T, K> function) { - return toMultiMap(iterable, element -> entry(function.apply(element), element)); - } - - public static <T, K, V> Map<K, List<V>> toMultiMap(Iterable<T> iterable, Function<T, Map.Entry<K, V>> function) { - Map<K, List<V>> map = new HashMap<>(); - for (T element : iterable) { - Map.Entry<K, V> pair = function.apply(element); - map.computeIfAbsent(pair.getKey(), key -> new ArrayList<V>()) - .add(pair.getValue()); - } - return map; - } - - public static <K1, K2, V> Map<K2, V> eagerMapKeys(Map<K1, V> map, Function<K1, K2> function) { - Map<K2, V> result = new HashMap<>(); - for (Map.Entry<K1, V> element : map.entrySet()) { - result.put(function.apply(element.getKey()), element.getValue()); - } - return result; - } - - public static <K, V1, V2> Map<K, V2> eagerMapValues(Map<K, V1> map, Function<V1, V2> function) { - Map<K, V2> result = new HashMap<>(); - for (Map.Entry<K, V1> element : map.entrySet()) { - result.put(element.getKey(), function.apply(element.getValue())); - } - return result; - } - - public static <K, V> Builder<K, V> builder() { - return new Builder<>(); - } - - public static class Builder<K, V> { - private final Map<K, V> values = new HashMap<>(); - - public Builder<K, V> put(K key, V value) { - values.put(key, value); - return this; - } - - public Map<K, V> build() { - return values; - } - } -} |
