jp.classmethod.aws.gradle.s3.AmazonS3DeleteAllFilesTask.java Source code

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Here is the source code for jp.classmethod.aws.gradle.s3.AmazonS3DeleteAllFilesTask.java

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/*
 * 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.s3;

import java.util.List;

import lombok.Getter;
import lombok.Setter;

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

import com.amazonaws.services.s3.AmazonS3;
import com.amazonaws.services.s3.model.S3ObjectSummary;

public class AmazonS3DeleteAllFilesTask extends ConventionTask {

    @Getter
    @Setter
    public String bucketName;

    @Getter
    @Setter
    public String prefix = "";

    public AmazonS3DeleteAllFilesTask() {
        setDescription("Delete all files in the S3 bucket.");
        setGroup("AWS");
    }

    @TaskAction
    public void delete() {
        // to enable conventionMappings feature
        String bucketName = getBucketName();
        String prefix = getPrefix();

        if (bucketName == null) {
            throw new GradleException("bucketName is not specified");
        }

        AmazonS3PluginExtension ext = getProject().getExtensions().getByType(AmazonS3PluginExtension.class);
        AmazonS3 s3 = ext.getClient();

        if (prefix.startsWith("/")) {
            prefix = prefix.substring(1);
        }

        getLogger().info("Delete s3://{}/{}*", bucketName, prefix);

        List<S3ObjectSummary> objectSummaries;
        while ((objectSummaries = s3.listObjects(bucketName, prefix).getObjectSummaries()).isEmpty() == false) {
            objectSummaries.forEach(os -> {
                getLogger().info("  Deleting... s3://{}/{}", bucketName, os.getKey());
                s3.deleteObject(bucketName, os.getKey());
            });
        }
    }
}