jp.classmethod.aws.gradle.cloudformation.AmazonCloudFormationPlugin.java Source code

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Here is the source code for jp.classmethod.aws.gradle.cloudformation.AmazonCloudFormationPlugin.java

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/*
 * Copyright 2013-2016 Classmethod, Inc.
 *
 * 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.cloudformation;

import java.text.SimpleDateFormat;
import java.util.Arrays;
import java.util.Date;
import java.util.TimeZone;
import java.util.stream.Collectors;

import jp.classmethod.aws.gradle.AwsPlugin;
import jp.classmethod.aws.gradle.s3.AmazonS3FileUploadTask;
import jp.classmethod.aws.gradle.s3.AmazonS3Plugin;

import org.apache.commons.io.FilenameUtils;
import org.gradle.api.Plugin;
import org.gradle.api.Project;

import com.amazonaws.services.cloudformation.model.Parameter;

public class AmazonCloudFormationPlugin implements Plugin<Project> {

    @Override
    public void apply(Project project) {
        project.getPluginManager().apply(AwsPlugin.class);
        project.getPluginManager().apply(AmazonS3Plugin.class);
        project.getExtensions().create(AmazonCloudFormationPluginExtension.NAME,
                AmazonCloudFormationPluginExtension.class, project);
        applyTasks(project);
    }

    private void applyTasks(Project project) {
        AmazonCloudFormationPluginExtension cfnExt = project.getExtensions()
                .findByType(AmazonCloudFormationPluginExtension.class);

        AmazonS3FileUploadTask awsCfnUploadTemplate = project.getTasks().create("awsCfnUploadTemplate",
                AmazonS3FileUploadTask.class, task -> {
                    task.setDescription("Upload cfn template file to the Amazon S3 bucket.");
                    task.conventionMapping("file", () -> cfnExt.getTemplateFile());
                    task.conventionMapping("bucketName", () -> cfnExt.getTemplateBucket());
                    task.conventionMapping("key", () -> {
                        String name = cfnExt.getTemplateFile().getName();
                        return createKey(name, project.getVersion(), cfnExt.getTemplateKeyPrefix());
                    });
                    task.doLast(t -> {
                        cfnExt.setTemplateURL(((AmazonS3FileUploadTask) t).getResourceUrl());
                    });
                });

        AmazonCloudFormationMigrateStackTask awsCfnMigrateStack = project.getTasks().create("awsCfnMigrateStack",
                AmazonCloudFormationMigrateStackTask.class, task -> {
                    task.setDescription("Create/Migrate cfn stack.");
                    task.mustRunAfter(awsCfnUploadTemplate);
                    task.conventionMapping("stackName", () -> cfnExt.getStackName());
                    task.conventionMapping("capabilityIam", () -> cfnExt.isCapabilityIam());
                    task.conventionMapping("cfnStackParams",
                            () -> cfnExt.getStackParams().entrySet().stream()
                                    .map(it -> new Parameter().withParameterKey(it.getKey().toString())
                                            .withParameterValue(it.getValue().toString()))
                                    .collect(Collectors.toList()));
                    task.conventionMapping("cfnTemplateUrl", () -> cfnExt.getTemplateURL());
                });

        project.getTasks().create("awsCfnWaitStackReady", AmazonCloudFormationWaitStackStatusTask.class, task -> {
            task.setDescription("Wait cfn stack for *_COMPLETE status.");
            task.mustRunAfter(awsCfnMigrateStack);
            task.conventionMapping("stackName", () -> cfnExt.getStackName());
        });

        AmazonCloudFormationWaitStackStatusTask awsCfnWaitStackComplete = project.getTasks()
                .create("awsCfnWaitStackComplete", AmazonCloudFormationWaitStackStatusTask.class, task -> {
                    task.setDescription("Wait cfn stack for CREATE_COMPETE or UPDATE_COMPLETE status.");
                    task.mustRunAfter(awsCfnMigrateStack);
                    task.setSuccessStatuses(Arrays.asList("CREATE_COMPLETE", "UPDATE_COMPLETE"));
                    task.conventionMapping("stackName", () -> cfnExt.getStackName());
                });

        project.getTasks().create("awsCfnMigrateStackAndWaitCompleted")
                .dependsOn(awsCfnMigrateStack, awsCfnWaitStackComplete).setDescription(
                        "Create/Migrate cfn stack, and wait stack for CREATE_COMPETE or UPDATE_COMPLETE status.");

        AmazonCloudFormationDeleteStackTask awsCfnDeleteStack = project.getTasks().create("awsCfnDeleteStack",
                AmazonCloudFormationDeleteStackTask.class, task -> {
                    task.setDescription("Delete cfn stack.");
                    task.conventionMapping("stackName", () -> cfnExt.getStackName());
                });

        AmazonCloudFormationWaitStackStatusTask awsCfnWaitStackDeleted = project.getTasks()
                .create("awsCfnWaitStackDeleted", AmazonCloudFormationWaitStackStatusTask.class, task -> {
                    task.setDescription("Wait cfn stack for DELETE_COMPLETE status.");
                    task.mustRunAfter(awsCfnDeleteStack);
                    task.setSuccessStatuses(Arrays.asList("DELETE_COMPLETE"));
                    task.conventionMapping("stackName", () -> cfnExt.getStackName());
                });

        project.getTasks().create("awsCfnDeleteStackAndWaitCompleted")
                .dependsOn(awsCfnDeleteStack, awsCfnWaitStackDeleted)
                .setDescription("Delete cfn stack, and wait stack for DELETE_COMPLETE status.");
    }

    private String createKey(String name, Object version, String prefix) {
        String path = name.substring(FilenameUtils.getPrefix(name).length());
        String baseName = FilenameUtils.getBaseName(name);
        String extension = FilenameUtils.getExtension(name);
        return String.format("%s/%s/%s-%s-%s%s", new Object[] { prefix, path, baseName, version, createTimestamp(),
                extension.length() > 0 ? "." + extension : "" });
    }

    private String createTimestamp() {
        SimpleDateFormat sdf = new SimpleDateFormat("yyyyMMdd'_'HHmmss");
        sdf.setTimeZone(TimeZone.getDefault());
        String timestamp = sdf.format(new Date());
        return timestamp;
    }
}