org.apache.james.user.memory.MemoryUsersRepository.java Source code

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Here is the source code for org.apache.james.user.memory.MemoryUsersRepository.java

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package org.apache.james.user.memory;

import com.google.common.base.Function;
import com.google.common.base.Optional;
import org.apache.commons.configuration.ConfigurationException;
import org.apache.commons.configuration.HierarchicalConfiguration;
import org.apache.james.user.api.UsersRepositoryException;
import org.apache.james.user.api.model.User;
import org.apache.james.user.lib.AbstractUsersRepository;
import org.apache.james.user.lib.model.DefaultUser;

import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;

public class MemoryUsersRepository extends AbstractUsersRepository {

    public static MemoryUsersRepository withVirtualHosting() {
        return new MemoryUsersRepository(true);
    }

    public static MemoryUsersRepository withoutVirtualHosting() {
        return new MemoryUsersRepository(false);
    }

    private final Map<String, User> userByName;
    private final boolean supportVirtualHosting;
    private String algo;

    private MemoryUsersRepository(boolean supportVirtualHosting) {
        this.userByName = new HashMap<String, User>();
        this.algo = "MD5";
        this.supportVirtualHosting = supportVirtualHosting;
    }

    @Override
    public boolean supportVirtualHosting() {
        return supportVirtualHosting;
    }

    @Override
    public void doConfigure(HierarchicalConfiguration config) throws ConfigurationException {
        algo = config.getString("algorithm", "MD5");
        super.doConfigure(config);
    }

    @Override
    protected void doAddUser(String username, String password) throws UsersRepositoryException {
        DefaultUser user = new DefaultUser(username, algo);
        user.setPassword(password);
        userByName.put(username.toLowerCase(), user);
    }

    @Override
    public User getUserByName(String name) throws UsersRepositoryException {
        return userByName.get(name);
    }

    @Override
    public void updateUser(User user) throws UsersRepositoryException {
        User existingUser = getUserByName(user.getUserName());
        if (existingUser == null) {
            throw new UsersRepositoryException("Please provide an existing user to update");
        }
        userByName.put(user.getUserName().toLowerCase(), user);
    }

    @Override
    public void removeUser(String name) throws UsersRepositoryException {
        if (userByName.remove(name) == null) {
            throw new UsersRepositoryException("unable to remove unknown user " + name);
        }
    }

    @Override
    public boolean contains(String name) throws UsersRepositoryException {
        return userByName.containsKey(name.toLowerCase());
    }

    @Override
    public boolean test(String name, final String password) throws UsersRepositoryException {
        return Optional.fromNullable(userByName.get(name)).transform(new Function<User, Boolean>() {
            public Boolean apply(User user) {
                return user.verifyPassword(password);
            }
        }).or(false);
    }

    @Override
    public int countUsers() throws UsersRepositoryException {
        return userByName.size();
    }

    @Override
    public Iterator<String> list() throws UsersRepositoryException {
        return userByName.keySet().iterator();
    }
}