Repository: james-project Updated Branches: refs/heads/master f458495a0 -> 651a03db6
JAMES-2162 Introduce GuavaUtils Project: http://git-wip-us.apache.org/repos/asf/james-project/repo Commit: http://git-wip-us.apache.org/repos/asf/james-project/commit/6e9ad73a Tree: http://git-wip-us.apache.org/repos/asf/james-project/tree/6e9ad73a Diff: http://git-wip-us.apache.org/repos/asf/james-project/diff/6e9ad73a Branch: refs/heads/master Commit: 6e9ad73afc6d7ec13aeb8bf3e82861b901f3cabe Parents: f458495 Author: benwa <[email protected]> Authored: Mon Oct 2 17:30:54 2017 +0700 Committer: benwa <[email protected]> Committed: Tue Oct 3 07:51:58 2017 +0700 ---------------------------------------------------------------------- .../java/org/apache/james/util/GuavaUtils.java | 37 +++++++++ .../org/apache/james/util/GuavaUtilsTest.java | 80 ++++++++++++++++++++ 2 files changed, 117 insertions(+) ---------------------------------------------------------------------- http://git-wip-us.apache.org/repos/asf/james-project/blob/6e9ad73a/server/container/util-java8/src/main/java/org/apache/james/util/GuavaUtils.java ---------------------------------------------------------------------- diff --git a/server/container/util-java8/src/main/java/org/apache/james/util/GuavaUtils.java b/server/container/util-java8/src/main/java/org/apache/james/util/GuavaUtils.java new file mode 100644 index 0000000..518ead1 --- /dev/null +++ b/server/container/util-java8/src/main/java/org/apache/james/util/GuavaUtils.java @@ -0,0 +1,37 @@ +/**************************************************************** + * Licensed to the Apache Software Foundation (ASF) under one * + * or more contributor license agreements. See the NOTICE file * + * distributed with this work for additional information * + * regarding copyright ownership. The ASF licenses this file * + * to you under the Apache License, Version 2.0 (the * + * "License"); you may not use this file except in compliance * + * with the License. You may obtain a copy of the License at * + * * + * http://www.apache.org/licenses/LICENSE-2.0 * + * * + * Unless required by applicable law or agreed to in writing, * + * software distributed under the License is distributed on an * + * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY * + * KIND, either express or implied. See the License for the * + * specific language governing permissions and limitations * + * under the License. * + ****************************************************************/ + +package org.apache.james.util; + +import java.util.List; +import java.util.Map; + +import org.apache.commons.lang3.tuple.Pair; + +import com.github.steveash.guavate.Guavate; +import com.google.common.collect.ImmutableListMultimap; + +public class GuavaUtils { + public static <K, V> ImmutableListMultimap<K, V> toMultimap(Map<K, List<V>> rights) { + return rights.entrySet() + .stream() + .flatMap(e -> e.getValue().stream().map(right -> Pair.of(e.getKey(), right))) + .collect(Guavate.toImmutableListMultimap(Pair::getKey, Pair::getValue)); + } +} http://git-wip-us.apache.org/repos/asf/james-project/blob/6e9ad73a/server/container/util-java8/src/test/java/org/apache/james/util/GuavaUtilsTest.java ---------------------------------------------------------------------- diff --git a/server/container/util-java8/src/test/java/org/apache/james/util/GuavaUtilsTest.java b/server/container/util-java8/src/test/java/org/apache/james/util/GuavaUtilsTest.java new file mode 100644 index 0000000..3702e5e --- /dev/null +++ b/server/container/util-java8/src/test/java/org/apache/james/util/GuavaUtilsTest.java @@ -0,0 +1,80 @@ +/**************************************************************** + * Licensed to the Apache Software Foundation (ASF) under one * + * or more contributor license agreements. See the NOTICE file * + * distributed with this work for additional information * + * regarding copyright ownership. The ASF licenses this file * + * to you under the Apache License, Version 2.0 (the * + * "License"); you may not use this file except in compliance * + * with the License. You may obtain a copy of the License at * + * * + * http://www.apache.org/licenses/LICENSE-2.0 * + * * + * Unless required by applicable law or agreed to in writing, * + * software distributed under the License is distributed on an * + * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY * + * KIND, either express or implied. See the License for the * + * specific language governing permissions and limitations * + * under the License. * + ****************************************************************/ + +package org.apache.james.util; + +import static org.assertj.core.api.Assertions.assertThat; + +import java.util.List; + +import org.junit.Test; +import org.testcontainers.shaded.com.google.common.collect.ImmutableList; +import org.testcontainers.shaded.com.google.common.collect.ImmutableListMultimap; +import org.testcontainers.shaded.com.google.common.collect.ImmutableMap; + +public class GuavaUtilsTest { + + @Test + public void toMultimapShouldAcceptEmptyMaps() { + assertThat(GuavaUtils.toMultimap(ImmutableMap + .<String, List<String>>builder() + .build()) + .asMap()) + .isEqualTo(ImmutableMap.of()); + } + + @Test + public void toMultimapShouldAcceptSingleValuesMaps() { + assertThat(GuavaUtils.toMultimap(ImmutableMap + .<String, List<String>>builder() + .put("k1", ImmutableList.of("v1")) + .put("k2", ImmutableList.of("v2")) + .build()) + .asMap()) + .isEqualTo(ImmutableListMultimap.of( + "k1", "v1", + "k2", "v2") + .asMap()); + } + + @Test + public void toMultimapShouldAcceptMultiplesValuesMaps() { + assertThat(GuavaUtils.toMultimap(ImmutableMap + .<String, List<String>>builder() + .put("k1", ImmutableList.of("v1")) + .put("k2", ImmutableList.of("v2", "v2.1")) + .build()) + .asMap()) + .isEqualTo(ImmutableListMultimap.of( + "k1", "v1", + "k2", "v2", + "k2", "v2.1") + .asMap()); + } + + @Test + public void shouldStripEntriesWithEmptyList() { + assertThat(GuavaUtils.toMultimap(ImmutableMap + .<String, List<String>>builder() + .put("k1", ImmutableList.of()) + .build()) + .asMap()) + .isEqualTo(ImmutableListMultimap.of().asMap()); + } +} \ No newline at end of file --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
