server/protocols/jmap-draft/src/main/java/org/apache/james/jmap/draft/model/CreationMessageId.java

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 * 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   *
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 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY       *
 * KIND, either express or implied.  See the License for the    *
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 * under the License.                                           *
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package org.apache.james.jmap.draft.model;

import java.util.Objects;

import com.fasterxml.jackson.annotation.JsonValue;
import com.google.common.base.MoreObjects;
import com.google.common.base.Preconditions;

public class CreationMessageId {

    public static CreationMessageId of(String creationMessageId) {
        return new CreationMessageId(creationMessageId);
    }

    private final String id;

    private CreationMessageId(String id) {
        Preconditions.checkNotNull(id);
        Preconditions.checkArgument(!id.isEmpty());
        this.id = id;
    }

    @JsonValue
    public String getId() {
        return id;
    }

    @Override
    public boolean equals(Object obj) {
        if (obj instanceof CreationMessageId) {
            CreationMessageId other = (CreationMessageId) obj;
            return Objects.equals(this.id, other.id);
        }
        return false;
    }

    @Override
    public int hashCode() {
        return Objects.hash(id);
    }

    @Override
    public String toString() {
        return MoreObjects.toStringHelper(this)
            .add("id", id)
            .toString();
    }
}