com.appzone.sim.services.handlers.PhoneRegistrationServiceHandler.java Source code

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Here is the source code for com.appzone.sim.services.handlers.PhoneRegistrationServiceHandler.java

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/*
   Copyright 2010 Arunoda Susiripala
    
   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.appzone.sim.services.handlers;

import java.math.BigInteger;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;

import com.appzone.sim.model.Application;
import com.appzone.sim.model.Phone;
import com.appzone.sim.repositories.PhoneRepository;
import org.json.simple.JSONObject;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import javax.servlet.http.HttpServletRequest;

/**
 * author: arunoda.susiripala@gmail.com
 */
public class PhoneRegistrationServiceHandler extends AbstractServiceHandler {

    private final static Logger logger = LoggerFactory.getLogger(PhoneRegistrationServiceHandler.class);

    public final static String MATCHING_KEYWORD = "phone", KEY_PHONE_NO = "number",
            JSON_KEY_MD5_PHONE_NO = "md5PhoneNo";

    private PhoneRepository phoneRepository;

    public PhoneRegistrationServiceHandler(PhoneRepository phoneRepository) {

        this.phoneRepository = phoneRepository;
        setKeyWordMatcher(new DefaultKewordMatcher(MATCHING_KEYWORD));
    }

    @Override
    protected String doProcess(HttpServletRequest request) {

        String phoneNo = request.getParameter(KEY_PHONE_NO);
        // converting to md5
        phoneNo = getMD5(phoneNo);

        Phone phone = new Phone(phoneNo);

        logger.debug("adding a new phone: {}", phoneNo);
        phoneRepository.add(phone);

        JSONObject json = new JSONObject();
        json.put(JSON_KEY_MD5_PHONE_NO, phoneNo);

        return json.toJSONString();
    }

    // convert to MD5
    public String getMD5(String input) {
        try {
            MessageDigest md = MessageDigest.getInstance("MD5");
            byte[] messageDigest = md.digest(input.getBytes());
            BigInteger number = new BigInteger(1, messageDigest);
            String hashtext = number.toString(16);
            // Now we need to zero pad it if you actually want the full 32
            // chars.
            while (hashtext.length() < 32) {
                hashtext = "0" + hashtext;
            }
            return hashtext;
        } catch (NoSuchAlgorithmException e) {
            throw new RuntimeException(e);
        }
    }
}