com.r573.enfili.common.resource.cloud.aws.ses.SesManager.java Source code

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Here is the source code for com.r573.enfili.common.resource.cloud.aws.ses.SesManager.java

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/*
 * Enfili
 * Project hosted at https://github.com/ryanhosp/enfili/
 * Copyright 2013 Ho Siaw Ping Ryan
 *    
 * 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.r573.enfili.common.resource.cloud.aws.ses;

import java.util.ArrayList;
import java.util.List;

import com.amazonaws.auth.AWSCredentials;
import com.amazonaws.auth.BasicAWSCredentials;
import com.amazonaws.services.simpleemail.AmazonSimpleEmailServiceClient;
import com.amazonaws.services.simpleemail.model.Body;
import com.amazonaws.services.simpleemail.model.Content;
import com.amazonaws.services.simpleemail.model.Destination;
import com.amazonaws.services.simpleemail.model.Message;
import com.amazonaws.services.simpleemail.model.SendEmailRequest;
import com.r573.enfili.common.resource.cloud.aws.AwsConstants;
import com.r573.enfili.common.singleton.SingletonManager;

public class SesManager {
    private static SingletonManager<SesManager> singletonManager = new SingletonManager<SesManager>();

    private AmazonSimpleEmailServiceClient client;
    private String defaultSender;

    public static void initFromEnv(String defaultSender, String tag) {
        initFromEnv(AwsConstants.DEFAULT_ENV_KEY_ACCESS_KEY, AwsConstants.DEFAULT_ENV_KEY_SECRET_KEY, defaultSender,
                tag);
    }

    public static void initFromEnv(String keyAccessKey, String keySecretKey, String sender, String tag) {
        String awsAccessKey = System.getenv(keyAccessKey);
        String awsSecretKey = System.getenv(keySecretKey);
        if ((awsAccessKey == null) || (awsAccessKey.isEmpty())) {
            throw new IllegalStateException("AWS_ACCESS_KEY environment variable not defined");
        }
        if ((awsSecretKey == null) || (awsSecretKey.isEmpty())) {
            throw new IllegalStateException("AWS_SECRET_KEY environment variable not defined");
        }

        initWithCredentials(awsAccessKey, awsSecretKey, sender, tag);
    }

    public static void initWithCredentials(String awsAccessKey, String awsSecretKey, String defaultSender,
            String tag) {
        AWSCredentials awsCredentials = new BasicAWSCredentials(awsAccessKey, awsSecretKey);
        initWithCredentials(awsCredentials, defaultSender, tag);
    }

    public static void initWithCredentials(AWSCredentials awsCredentials, String defaultSender, String tag) {
        SesManager manager = new SesManager(awsCredentials, defaultSender);

        singletonManager.addInstance(tag, manager);
    }

    public static SesManager getDefaultInstance() {
        return singletonManager.getDefaultInstance();
    }

    public static SesManager getInstance(String tag) {
        return singletonManager.getInstance(tag);
    }

    public static void removeInstance(String tag) {
        singletonManager.removeInstance(tag);
    }

    private SesManager(AWSCredentials awsCredentials, String defaultSender) {
        client = new AmazonSimpleEmailServiceClient(awsCredentials);

        this.defaultSender = defaultSender;
    }

    public void sendEmailToSingleRecipient(String recipient, String subject, String emailContentText,
            String emailContentHtml, String sender) {
        SendEmailRequest request = new SendEmailRequest().withSource(sender);

        List<String> toAddresses = new ArrayList<String>();
        toAddresses.add(recipient);
        Destination dest = new Destination().withToAddresses(recipient);
        request.setDestination(dest);

        Content subjectContent = new Content().withData(subject);
        Message msg = new Message();
        msg.setSubject(subjectContent);

        Body body = new Body();
        if (emailContentText != null) {
            Content textContent = new Content().withData(emailContentText);
            body.withText(textContent);
        }
        if (emailContentHtml != null) {
            Content htmlContent = new Content().withData(emailContentHtml);
            body.withHtml(htmlContent);
        }

        msg.setBody(body);

        request.setMessage(msg);

        client.sendEmail(request);
    }

    public void sendEmailToSingleRecipient(String recipient, String subject, String emailContentText,
            String emailContentHtml) {
        sendEmailToSingleRecipient(recipient, subject, emailContentText, emailContentHtml, defaultSender);
    }
}