GitHubDefaultQueries.java

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package com.junichi11.netbeans.modules.github.issues.query;

import com.junichi11.netbeans.modules.github.issues.repository.GitHubRepository;
import java.util.Collections;
import java.util.HashMap;
import java.util.Map;
import java.util.logging.Level;
import java.util.logging.Logger;
import org.netbeans.api.annotations.common.NonNull;

/**
 *
 * @author junichi11
 */
public final class GitHubDefaultQueries {

    public enum Type {

        // must not change option key name
        OPEN("query.open"), // NOI18N
        ASSIGNED_TO_ME("query.assigned.to.me"), // NOI18N
        CREATED_BY_ME("query.created.by.me"); // NOI18N
        private final String optionKey;

        private Type(String optionKey) {
            this.optionKey = optionKey;
        }

        public String getOptionKey() {
            return optionKey;
        }

    }

    private static final Map<GitHubRepository, GitHubDefaultQueries> DEFAULT_QUERIES = Collections.synchronizedMap(new HashMap<GitHubRepository, GitHubDefaultQueries>());
    private static final Logger LOGGER = Logger.getLogger(GitHubDefaultQueries.class.getName());
    private final Map<Type, GitHubQuery> defaultQueries = new HashMap<>();

    private GitHubDefaultQueries() {
    }

    private static GitHubDefaultQueries create(GitHubRepository repository) {
        GitHubDefaultQueries gitHubDefaultQueries = DEFAULT_QUERIES.get(repository);
        if (gitHubDefaultQueries == null) {
            gitHubDefaultQueries = new GitHubDefaultQueries();
            DEFAULT_QUERIES.put(repository, gitHubDefaultQueries);
        }
        return gitHubDefaultQueries;
    }

    public static GitHubQuery create(GitHubRepository repository, Type type) {
        GitHubDefaultQueries gitHubDefaultQueries = create(repository);
        return gitHubDefaultQueries.getQuery(repository, type);
    }

    public static boolean isDefaultQuery(GitHubQuery query) {
        return query instanceof GitHubDefaultQuery;
    }

    public static void remove(GitHubRepository repository) {
        GitHubDefaultQueries gitHubDefaultQueries = create(repository);
        if (gitHubDefaultQueries == null) {
            return;
        }
        gitHubDefaultQueries.clear();
        DEFAULT_QUERIES.remove(repository);
    }

    private GitHubQuery getQuery(@NonNull GitHubRepository repository, @NonNull Type type) {
        GitHubQuery query = defaultQueries.get(type);
        if (query == null) {
            switch (type) {
                case OPEN:
                    query = new GitHubOpenQuery(repository);
                    break;
                case ASSIGNED_TO_ME:
                    query = new GitHubAssignedToMeQuery(repository);
                    break;
                case CREATED_BY_ME:
                    query = new GitHubCreatedByMeQuery(repository);
                    break;
                default:
                    LOGGER.log(Level.WARNING, "The query type({0}) is not supported!", type.name()); // NOI18N
                    return new GitHubDefaultQuery(repository) {
                    };
            }
            defaultQueries.put(type, query);
        }
        return query;
    }

    private void clear() {
        defaultQueries.clear();
    }

}