jp.classmethod.aws.gradle.sqs.AmazonSQSSendMessagesTask.java Source code

Introduction

Here is the source code for jp.classmethod.aws.gradle.sqs.AmazonSQSSendMessagesTask.java

Source

/*
 * Copyright 2015-2016 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 jp.classmethod.aws.gradle.sqs;

import java.util.List;
import java.util.concurrent.atomic.AtomicInteger;
import java.util.stream.Collectors;
import java.util.stream.Stream;

import lombok.Getter;
import lombok.Setter;

import org.gradle.api.GradleException;
import org.gradle.api.tasks.TaskAction;

import com.amazonaws.services.sqs.AmazonSQS;
import com.amazonaws.services.sqs.model.SendMessageBatchRequest;
import com.amazonaws.services.sqs.model.SendMessageBatchRequestEntry;
import com.google.common.collect.Lists;

public class AmazonSQSSendMessagesTask extends AbstractAmazonSQSTask {

    private static final int MAX_MESSAGE_SEND_BATCH_SIZE = 10;

    @Getter
    @Setter
    private Stream<String> messages;

    public AmazonSQSSendMessagesTask() {
        setDescription("Send messages to SQS");
        setGroup("AWS");
    }

    @TaskAction
    public void sendMessages() {
        String queueUrl = getQueueUrl();
        Stream<String> messages = getMessages();

        if (queueUrl == null) {
            throw new GradleException("Must specify either queueName or queueUrl");
        }
        if (messages == null) {
            throw new GradleException("Must provide messages to send to SQS");
        }

        AmazonSQSPluginExtension ext = getProject().getExtensions().getByType(AmazonSQSPluginExtension.class);
        AmazonSQS sqs = ext.getClient();

        final AtomicInteger counter = new AtomicInteger(0);
        List<SendMessageBatchRequestEntry> messageEntries = messages
                .map(message -> new SendMessageBatchRequestEntry()
                        .withId("gradle_message_index_" + counter.getAndIncrement()).withMessageBody(message))
                .collect(Collectors.toList());

        getLogger().info("Sending {} messages to {}", messageEntries.size(), queueUrl);
        Lists.partition(messageEntries, MAX_MESSAGE_SEND_BATCH_SIZE).parallelStream()
                .forEach(messagesToSend -> sqs.sendMessageBatch(
                        new SendMessageBatchRequest().withQueueUrl(queueUrl).withEntries(messagesToSend)));
    }

}