com.google.gerrit.server.mail.MailUtil.java Source code

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Here is the source code for com.google.gerrit.server.mail.MailUtil.java

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// Copyright (C) 2013 The Android Open Source Project
//
// Licensed 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 com.google.gerrit.server.mail;

import static com.google.gerrit.server.notedb.ReviewerStateInternal.CC;
import static com.google.gerrit.server.notedb.ReviewerStateInternal.REVIEWER;

import com.google.common.collect.Multimap;
import com.google.gerrit.common.FooterConstants;
import com.google.gerrit.common.errors.NoSuchAccountException;
import com.google.gerrit.reviewdb.client.Account;
import com.google.gerrit.reviewdb.client.PatchSet;
import com.google.gerrit.server.account.AccountResolver;
import com.google.gerrit.server.notedb.ReviewerStateInternal;
import com.google.gwtorm.server.OrmException;

import org.eclipse.jgit.revwalk.FooterKey;
import org.eclipse.jgit.revwalk.FooterLine;

import java.util.Collections;
import java.util.HashSet;
import java.util.List;
import java.util.Set;

public class MailUtil {

    public static MailRecipients getRecipientsFromFooters(final AccountResolver accountResolver, final PatchSet ps,
            final List<FooterLine> footerLines) throws OrmException {
        final MailRecipients recipients = new MailRecipients();
        if (!ps.isDraft()) {
            for (final FooterLine footerLine : footerLines) {
                try {
                    if (isReviewer(footerLine)) {
                        recipients.reviewers.add(toAccountId(accountResolver, footerLine.getValue().trim()));
                    } else if (footerLine.matches(FooterKey.CC)) {
                        recipients.cc.add(toAccountId(accountResolver, footerLine.getValue().trim()));
                    }
                } catch (NoSuchAccountException e) {
                    continue;
                }
            }
        }
        return recipients;
    }

    public static MailRecipients getRecipientsFromReviewers(Multimap<ReviewerStateInternal, Account.Id> reviewers) {
        MailRecipients recipients = new MailRecipients();
        recipients.reviewers.addAll(reviewers.get(REVIEWER));
        recipients.cc.addAll(reviewers.get(CC));
        return recipients;
    }

    private static Account.Id toAccountId(final AccountResolver accountResolver, final String nameOrEmail)
            throws OrmException, NoSuchAccountException {
        final Account a = accountResolver.findByNameOrEmail(nameOrEmail);
        if (a == null) {
            throw new NoSuchAccountException("\"" + nameOrEmail + "\" is not registered");
        }
        return a.getId();
    }

    private static boolean isReviewer(final FooterLine candidateFooterLine) {
        return candidateFooterLine.matches(FooterKey.SIGNED_OFF_BY)
                || candidateFooterLine.matches(FooterKey.ACKED_BY)
                || candidateFooterLine.matches(FooterConstants.REVIEWED_BY)
                || candidateFooterLine.matches(FooterConstants.TESTED_BY);
    }

    public static class MailRecipients {
        private final Set<Account.Id> reviewers;
        private final Set<Account.Id> cc;

        public MailRecipients() {
            this.reviewers = new HashSet<>();
            this.cc = new HashSet<>();
        }

        public MailRecipients(final Set<Account.Id> reviewers, final Set<Account.Id> cc) {
            this.reviewers = new HashSet<>(reviewers);
            this.cc = new HashSet<>(cc);
        }

        public void add(final MailRecipients recipients) {
            reviewers.addAll(recipients.reviewers);
            cc.addAll(recipients.cc);
        }

        public void remove(final Account.Id toRemove) {
            reviewers.remove(toRemove);
            cc.remove(toRemove);
        }

        public Set<Account.Id> getReviewers() {
            return Collections.unmodifiableSet(reviewers);
        }

        public Set<Account.Id> getCcOnly() {
            final Set<Account.Id> cc = new HashSet<>(this.cc);
            cc.removeAll(reviewers);
            return Collections.unmodifiableSet(cc);
        }

        public Set<Account.Id> getAll() {
            final Set<Account.Id> all = new HashSet<>(reviewers.size() + cc.size());
            all.addAll(reviewers);
            all.addAll(cc);
            return Collections.unmodifiableSet(all);
        }
    }
}