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Posted to server-dev@james.apache.org by bt...@apache.org on 2020/06/21 09:16:31 UTC

[james-project] 08/12: JAMES-3167 Add MailboxReactorUtils

This is an automated email from the ASF dual-hosted git repository.

btellier pushed a commit to branch master
in repository https://gitbox.apache.org/repos/asf/james-project.git

commit 013d7a5d91e05b69934041ce8614b3b865e71d6f
Author: Gautier DI FOLCO <gd...@linagora.com>
AuthorDate: Wed May 27 14:07:06 2020 +0200

    JAMES-3167 Add MailboxReactorUtils
---
 .../james/mailbox/store/MailboxReactorUtils.java   | 52 +++++++++++++++++++++
 .../mailbox/store/MailboxReactorUtilsTest.java     | 54 ++++++++++++++++++++++
 2 files changed, 106 insertions(+)

diff --git a/mailbox/store/src/main/java/org/apache/james/mailbox/store/MailboxReactorUtils.java b/mailbox/store/src/main/java/org/apache/james/mailbox/store/MailboxReactorUtils.java
new file mode 100644
index 0000000..c8e3cd3
--- /dev/null
+++ b/mailbox/store/src/main/java/org/apache/james/mailbox/store/MailboxReactorUtils.java
@@ -0,0 +1,52 @@
+/****************************************************************
+ * 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.mailbox.store;
+
+import java.util.Optional;
+
+import org.apache.james.mailbox.exception.MailboxException;
+
+import reactor.core.publisher.Mono;
+
+public abstract class MailboxReactorUtils {
+    public static <T> T block(Mono<T> publisher) throws MailboxException {
+        try {
+            return publisher.block();
+        } catch (RuntimeException e) {
+            if (e.getCause() instanceof MailboxException) {
+                throw (MailboxException) e.getCause();
+            }
+
+            throw e;
+        }
+    }
+    
+    public static <T> Optional<T> blockOptional(Mono<T> publisher) throws MailboxException {
+        try {
+            return publisher.blockOptional();
+        } catch (RuntimeException e) {
+            if (e.getCause() instanceof MailboxException) {
+                throw (MailboxException) e.getCause();
+            }
+
+            throw e;
+        }
+    }
+}
diff --git a/mailbox/store/src/test/java/org/apache/james/mailbox/store/MailboxReactorUtilsTest.java b/mailbox/store/src/test/java/org/apache/james/mailbox/store/MailboxReactorUtilsTest.java
new file mode 100644
index 0000000..caf5e2f
--- /dev/null
+++ b/mailbox/store/src/test/java/org/apache/james/mailbox/store/MailboxReactorUtilsTest.java
@@ -0,0 +1,54 @@
+/****************************************************************
+ * 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.mailbox.store;
+
+import static org.assertj.core.api.Assertions.assertThat;
+import static org.assertj.core.api.Assertions.assertThatThrownBy;
+
+import org.apache.james.mailbox.exception.MailboxException;
+import org.junit.jupiter.api.Test;
+
+import reactor.core.publisher.Mono;
+
+class MailboxReactorUtilsTest {
+    @Test
+    void blockJustShouldReturnTheValue() throws Exception {
+        assertThat(MailboxReactorUtils.block(Mono.just(42)))
+            .isEqualTo(42);
+    }
+
+    @Test
+    void blockEmptyShouldReturnNull() throws Exception {
+        assertThat((Integer) MailboxReactorUtils.block(Mono.empty()))
+            .isNull();
+    }
+
+    @Test
+    void blockErrorMailboxExceptionShouldThrowMailboxException() {
+        assertThatThrownBy(() -> MailboxReactorUtils.block(Mono.error(new MailboxException())))
+            .isInstanceOf(MailboxException.class);
+    }
+
+    @Test
+    void blockErrorRuntimeExceptionShouldThrowRuntimeException() {
+        assertThatThrownBy(() -> MailboxReactorUtils.block(Mono.error(new RuntimeException())))
+            .isInstanceOf(RuntimeException.class);
+    }
+}
\ No newline at end of file


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