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JAMES-1874 No need of two reads for COUNT and UNSEEN
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84 changes: 84 additions & 0 deletions
84
mailbox/api/src/main/java/org/apache/james/mailbox/model/MailboxCounters.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,84 @@ | ||
| /**************************************************************** | ||
| * 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.model; | ||
|
|
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| import com.google.common.base.Objects; | ||
| import com.google.common.base.Optional; | ||
| import com.google.common.base.Preconditions; | ||
|
|
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| public class MailboxCounters { | ||
|
|
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| public static class Builder { | ||
| private Optional<Long> count = Optional.absent(); | ||
| private Optional<Long> unseen = Optional.absent(); | ||
|
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| public Builder count(long count) { | ||
| this.count = Optional.of(count); | ||
| return this; | ||
| } | ||
|
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| public Builder unseen(long unseen) { | ||
| this.unseen = Optional.of(unseen); | ||
| return this; | ||
| } | ||
|
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| public MailboxCounters build() { | ||
| Preconditions.checkState(count.isPresent(), "count is compulsory"); | ||
| Preconditions.checkState(unseen.isPresent(), "unseen is compulsory"); | ||
| return new MailboxCounters(count.get(), unseen.get()); | ||
| } | ||
| } | ||
|
|
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| public static Builder builder() { | ||
| return new Builder(); | ||
| } | ||
|
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| private final long count; | ||
| private final long unseen; | ||
|
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| private MailboxCounters(long count, long unseen) { | ||
| this.count = count; | ||
| this.unseen = unseen; | ||
| } | ||
|
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| public long getCount() { | ||
| return count; | ||
| } | ||
|
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| public long getUnseen() { | ||
| return unseen; | ||
| } | ||
|
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| @Override | ||
| public final boolean equals(Object o) { | ||
| if (o instanceof MailboxCounters) { | ||
| MailboxCounters that = (MailboxCounters) o; | ||
|
|
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| return Objects.equal(this.count, that.count) | ||
| && Objects.equal(this.unseen, that.unseen); | ||
| } | ||
| return false; | ||
| } | ||
|
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| @Override | ||
| public final int hashCode() { | ||
| return Objects.hashCode(count, unseen); | ||
| } | ||
| } |
33 changes: 33 additions & 0 deletions
33
mailbox/api/src/test/java/org/apache/james/mailbox/model/MailboxCountersTest.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,33 @@ | ||
| /* | ||
| * 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. | ||
| * | ||
| */ | ||
|
|
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| package org.apache.james.mailbox.model; | ||
|
|
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| import org.junit.Test; | ||
|
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| import nl.jqno.equalsverifier.EqualsVerifier; | ||
|
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| public class MailboxCountersTest { | ||
|
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| @Test | ||
| public void mailboxCountersShouldRespectBeanContract() { | ||
| EqualsVerifier.forClass(MailboxCounters.class).verify(); | ||
| } | ||
| } |
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