com.hs.mail.web.util.DataImporter.java Source code

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Here is the source code for com.hs.mail.web.util.DataImporter.java

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/*
 * Copyright 2010 the original author or authors.
 * 
 *  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.hs.mail.web.util;

import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.LineNumberReader;
import java.util.ArrayList;
import java.util.List;

import javax.mail.internet.ParseException;

import org.apache.commons.lang.StringUtils;

import com.hs.mail.imap.user.User;
import com.hs.mail.imap.user.UserManager;

/**
 * 
 * @author Won Chul Doh
 * @since Sep 2, 2010 
 *
 */
public class DataImporter {

    List<ImportError> errors = new ArrayList<ImportError>();

    public void importAccount(UserManager manager, InputStream is) throws IOException {
        LineNumberReader reader = new LineNumberReader(new InputStreamReader(is));
        String line;
        while ((line = reader.readLine()) != null) {
            try {
                User user = parseAccount(line);
                manager.addUser(user);
            } catch (Exception e) {
                addError(reader.getLineNumber(), line, e);
            }
        }
    }

    public boolean hasErrors() {
        return !errors.isEmpty();
    }

    public void addError(int number, String line, Exception e) {
        errors.add(new ImportError(number, line, e.getMessage()));
    }

    public List<ImportError> getErrors() {
        return errors;
    }

    private User parseAccount(String str) throws ParseException {
        String[] astr = StringUtils.split(str, ':');
        int len = astr.length;
        User user = new User();
        MailUtils.validateAddress(astr[0]);
        user.setUserID(astr[0]);
        user.setPassword("1"); // default password
        if (len > 1) {
            if (StringUtils.isNotEmpty(astr[1])) {
                user.setPassword(astr[1]);
            }
            if (len > 2) {
                if (StringUtils.isNotEmpty(astr[2])) {
                    user.setQuota(Long.parseLong(astr[2]));
                }
                if (len > 3) {
                    if (StringUtils.isNotEmpty(astr[3])) {
                        MailUtils.validateAddress(astr[3]);
                        user.setForwardTo(astr[3]);
                    }
                }
            }
        }
        return user;
    }

    public class ImportError extends Exception {

        private static final long serialVersionUID = 1L;

        private String line;

        private int number;

        public ImportError(int number, String line, String message) {
            super(message);
            this.number = number;
            this.line = line;
        }

        public String getSourceLine() {
            return line;
        }

        public int getLineNumber() {
            return number;
        }

    }

}