org.apache.james.jmap.memory.access.MemoryAccessTokenRepository.java Source code

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Here is the source code for org.apache.james.jmap.memory.access.MemoryAccessTokenRepository.java

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package org.apache.james.jmap.memory.access;

import java.util.Optional;
import java.util.concurrent.CompletableFuture;
import java.util.concurrent.CompletionException;

import javax.inject.Inject;
import javax.inject.Named;

import org.apache.commons.collections4.map.PassiveExpiringMap;
import org.apache.james.jmap.api.access.AccessToken;
import org.apache.james.jmap.api.access.AccessTokenRepository;
import org.apache.james.jmap.api.access.exceptions.InvalidAccessToken;

import com.google.common.base.Preconditions;

public class MemoryAccessTokenRepository implements AccessTokenRepository {

    private final PassiveExpiringMap<AccessToken, String> tokensExpirationDates;

    @Inject
    public MemoryAccessTokenRepository(@Named(TOKEN_EXPIRATION_IN_MS) long durationInMilliseconds) {
        tokensExpirationDates = new PassiveExpiringMap<>(durationInMilliseconds);
    }

    @Override
    public CompletableFuture<Void> addToken(String username, AccessToken accessToken) {
        Preconditions.checkNotNull(username);
        Preconditions.checkArgument(!username.isEmpty(), "Username should not be empty");
        Preconditions.checkNotNull(accessToken);
        synchronized (tokensExpirationDates) {
            tokensExpirationDates.put(accessToken, username);
        }
        return CompletableFuture.completedFuture(null);
    }

    @Override
    public CompletableFuture<Void> removeToken(AccessToken accessToken) {
        Preconditions.checkNotNull(accessToken);
        synchronized (tokensExpirationDates) {
            tokensExpirationDates.remove(accessToken);
        }
        return CompletableFuture.completedFuture(null);
    }

    @Override
    public CompletableFuture<String> getUsernameFromToken(AccessToken accessToken) throws InvalidAccessToken {
        Preconditions.checkNotNull(accessToken);
        synchronized (tokensExpirationDates) {
            return CompletableFuture.completedFuture(
                    Optional.ofNullable(tokensExpirationDates.get(accessToken)).<CompletionException>orElseThrow(
                            () -> new CompletionException(new InvalidAccessToken(accessToken))));
        }
    }

}