org.apache.james.mailbox.elasticsearch.json.MessageToElasticSearchJson.java Source code

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Here is the source code for org.apache.james.mailbox.elasticsearch.json.MessageToElasticSearchJson.java

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package org.apache.james.mailbox.elasticsearch.json;

import java.time.ZoneId;
import java.util.List;

import javax.inject.Inject;
import javax.mail.Flags;

import org.apache.commons.lang.NotImplementedException;
import org.apache.james.mailbox.MailboxManager;
import org.apache.james.mailbox.MailboxSession.User;
import org.apache.james.mailbox.elasticsearch.IndexAttachments;
import org.apache.james.mailbox.extractor.TextExtractor;
import org.apache.james.mailbox.store.mail.model.MailboxMessage;
import org.apache.james.mailbox.store.search.MessageSearchIndex;

import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.datatype.guava.GuavaModule;
import com.fasterxml.jackson.datatype.jdk8.Jdk8Module;
import com.google.common.base.Preconditions;

public class MessageToElasticSearchJson {

    private final ObjectMapper mapper;
    private final TextExtractor textExtractor;
    private final ZoneId zoneId;
    private final IndexAttachments indexAttachments;
    private final MessageSearchIndex.IndexMessageId indexMessageId;

    public MessageToElasticSearchJson(TextExtractor textExtractor, ZoneId zoneId, IndexAttachments indexAttachments,
            MessageSearchIndex.IndexMessageId indexMessageId) {
        this.textExtractor = textExtractor;
        this.zoneId = zoneId;
        this.indexAttachments = indexAttachments;
        this.mapper = new ObjectMapper();
        this.mapper.registerModule(new GuavaModule());
        this.mapper.registerModule(new Jdk8Module());
        this.indexMessageId = indexMessageId;
    }

    @Inject
    public MessageToElasticSearchJson(TextExtractor textExtractor, IndexAttachments indexAttachments,
            MailboxManager mailboxManager) {
        this(textExtractor, ZoneId.systemDefault(), indexAttachments, indexMessageId(mailboxManager));
    }

    private static MessageSearchIndex.IndexMessageId indexMessageId(MailboxManager mailboxManager) {
        if (mailboxManager.getSupportedMessageCapabilities()
                .contains(MailboxManager.MessageCapabilities.UniqueID)) {
            return MessageSearchIndex.IndexMessageId.Required;
        }
        return MessageSearchIndex.IndexMessageId.Optional;
    }

    public String convertToJson(MailboxMessage message, List<User> users) throws JsonProcessingException {
        Preconditions.checkNotNull(message);
        switch (indexMessageId) {
        case Required:
            return mapper.writeValueAsString(
                    IndexableMessageWithMessageId.from(message, users, textExtractor, zoneId, indexAttachments));
        case Optional:
            return mapper.writeValueAsString(
                    IndexableMessage.from(message, users, textExtractor, zoneId, indexAttachments));
        default:
            throw new NotImplementedException();
        }
    }

    public String getUpdatedJsonMessagePart(Flags flags, long modSeq) throws JsonProcessingException {
        Preconditions.checkNotNull(flags);
        return mapper.writeValueAsString(new MessageUpdateJson(flags, modSeq));
    }

}