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/******************************************************************************
* Product: Adempiere ERP & CRM Smart Business Solution *
* This program is free software; you can redistribute it and/or modify it *
* under the terms version 2 or later of the GNU General Public License *
* as published *
* by the Free Software Foundation. This program is distributed in the hope *
* that it will be useful, but WITHOUT ANY WARRANTY; without even the implied *
* warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. *
* See the GNU General Public License for more details. *
* You should have received a copy of the GNU General Public License along *
* with this program; if not, write to the Free Software Foundation, Inc., *
* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. *
* For the text or an alternative of this public license, you may reach us *
* Copyright (C) 2003-2020 E.R.P. Consultores y Asociados, C.A. *
* All Rights Reserved. *
* Contributor(s): Yamel Senih www.erpya.com *
*****************************************************************************/
package org.spin.eca62.support;
import java.io.ByteArrayInputStream;
import java.io.InputStream;
import java.util.ArrayList;
import java.util.List;
import org.adempiere.exceptions.AdempiereException;
import org.compiere.util.Env;
import org.compiere.util.MimeType;
import org.compiere.util.Util;
import org.spin.model.MADAppRegistration;
import org.spin.util.support.webdav.IWebDav;
import org.spin.util.support.webdav.IWebDavResource;
import com.amazonaws.auth.AWSStaticCredentialsProvider;
import com.amazonaws.auth.BasicAWSCredentials;
import com.amazonaws.client.builder.AwsClientBuilder;
import com.amazonaws.services.s3.AmazonS3;
import com.amazonaws.services.s3.AmazonS3ClientBuilder;
import com.amazonaws.services.s3.model.CopyObjectRequest;
import com.amazonaws.services.s3.model.DeleteObjectRequest;
import com.amazonaws.services.s3.model.GetObjectRequest;
import com.amazonaws.services.s3.model.ObjectMetadata;
import com.amazonaws.services.s3.model.PutObjectRequest;
import com.amazonaws.services.s3.model.S3Object;
/**
* This is a implementation of Amazon S3 API for ADempiere
* @author Yamel Senih, [email protected] , ERPCyA http://www.erpya.com
* @see https://docs.aws.amazon.com/AmazonS3/latest/dev/ObjectOperations.html
*/
public class S3 implements IWebDav, IS3 {
public S3() {
super();
}
/** Registration Id */
private int registrationId = 0;
/** Bucket Name */
private String bucketName = null;
public static final String ACCESS_KEY = "ACCESS_KEY";
public static final String SECRET_KEY = "SECRET_KEY";
public static final String BUCKET_REGION = "BUCKET_REGION";
public static final String BUCKET_NAME = "BUCKET_NAME";
private String host;
/**
* Get Path from relative path and base path
* @param relativePath
* @return
*/
private String getPath(String relativePath) {
return relativePath;
}
private String getHost() {
return host;
}
/**
* Load Connection from values
*/
private MADAppRegistration getRegistrationInstance() {
if(getAppRegistrationId() <= 0) {
throw new AdempiereException("@AD_AppRegistration_ID@ @NotFound@");
}
MADAppRegistration registration = MADAppRegistration.getById(Env.getCtx(), getAppRegistrationId(), null);
// Access Key
if(Util.isEmpty(registration.getParameterValue(ACCESS_KEY))) {
throw new AdempiereException(ACCESS_KEY + " @NotFound@");
}
// Secret Key
if(Util.isEmpty(registration.getParameterValue(SECRET_KEY))) {
throw new AdempiereException(SECRET_KEY + " @NotFound@");
}
// Bucket End Point
if(Util.isEmpty(registration.getHost())) {
throw new AdempiereException("@Host@ @NotFound@");
}
host = registration.getHost();
int port = registration.getPort();
if(host.endsWith("/")) {
host = host.substring(0, host.lastIndexOf("/"));
}
if(port > 0) {
host = host + ":" + port;
}
// Region Name
if(Util.isEmpty(registration.getParameterValue(BUCKET_REGION))) {
throw new AdempiereException(BUCKET_REGION + " @NotFound@");
}
// Bucket Name
if(Util.isEmpty(registration.getParameterValue(BUCKET_NAME))) {
throw new AdempiereException(BUCKET_NAME + " @NotFound@");
}
// Set bucket name
bucketName = registration.getParameterValue(BUCKET_NAME);
// Return registration
return registration;
}
/**
* Get Bucket Name from configuration
* @return
*/
private String getBucketName() {
if(Util.isEmpty(bucketName)) {
getRegistrationInstance();
}
return bucketName;
}
/**
* Get S3 Instance
* @return
*/
private AmazonS3 getS3Instance() {
MADAppRegistration registration = getRegistrationInstance();
return AmazonS3ClientBuilder
.standard()
.withCredentials(new AWSStaticCredentialsProvider(
new BasicAWSCredentials(
registration.getParameterValue(ACCESS_KEY),
registration.getParameterValue(SECRET_KEY)
)
))
.withEndpointConfiguration(new AwsClientBuilder.EndpointConfiguration(
getHost(),
registration.getParameterValue(BUCKET_REGION)))
.build();
}
@Override
public void setAppRegistrationId(int registrationId) {
this.registrationId = registrationId;
}
@Override
public int getAppRegistrationId() {
return registrationId;
}
@Override
public InputStream getResource(String relativePath) throws Exception {
if(Util.isEmpty(relativePath)) {
return null;
}
AmazonS3 s3Client = getS3Instance();
// Retrieve object
S3Object resource = null;
resource = s3Client.getObject(new GetObjectRequest(getBucketName(), getPath(relativePath)));
// Prevent NPE
if(resource == null) {
return null;
}
return resource.getObjectContent();
}
@Override
public void putResource(String relativePath, InputStream resource) throws Exception {
if(Util.isEmpty(relativePath)
|| resource == null) {
return;
}
if(Util.isEmpty(relativePath)
|| resource == null) {
return;
}
AmazonS3 s3Client = getS3Instance();
// Set metadata
ObjectMetadata metadata = new ObjectMetadata();
metadata.setContentLength(resource.available());
String fileName = ResourceMetadata.getValidCompleteName(relativePath);
metadata.setContentType(MimeType.getMimeType(fileName));
// Put object for bucket
s3Client.putObject(getBucketName(), fileName, resource, metadata);
}
@Override
public void deleteResource(String relativePath) throws Exception {
if(Util.isEmpty(relativePath)) {
return;
}
AmazonS3 s3Client = getS3Instance();
// Delete object
s3Client.deleteObject(new DeleteObjectRequest(getBucketName(), getPath(relativePath)));
}
@Override
public void createDirectory(String relativePathName) throws Exception {
if(Util.isEmpty(relativePathName)) {
return;
}
AmazonS3 s3Client = getS3Instance();
ObjectMetadata metadata = new ObjectMetadata();
metadata.setContentLength(0);
//
InputStream emptyContent = new ByteArrayInputStream(new byte[0]);
PutObjectRequest putObjectRequest = new PutObjectRequest(getBucketName(), getPath(relativePathName), emptyContent, metadata);
// Create
s3Client.putObject(putObjectRequest);
}
@Override
public void moveResource(String relativeSourcePath, String relativeTargetPath) throws Exception {
if(Util.isEmpty(relativeSourcePath)
|| Util.isEmpty(relativeTargetPath)) {
return;
}
copyResource(relativeSourcePath, relativeTargetPath);
deleteResource(relativeSourcePath);
}
@Override
public void copyResource(String relativeSourcePath, String relativeTargetPath) throws Exception {
if(Util.isEmpty(relativeSourcePath)
|| Util.isEmpty(relativeTargetPath)) {
return;
}
AmazonS3 s3Client = getS3Instance();
CopyObjectRequest copyObjRequest = new CopyObjectRequest(getBucketName(), getPath(relativeSourcePath), getBucketName(), getPath(relativeTargetPath));
s3Client.copyObject(copyObjRequest);
}
@Override
public boolean exists(String relativePath) throws Exception {
if(Util.isEmpty(relativePath)) {
return false;
}
// Verify if exist a object
return getS3Instance().doesObjectExist(getBucketName(), getPath(relativePath));
}
@Override
public List getResourceList(String relativePath) throws Exception {
AmazonS3 s3Client = getS3Instance();
List resources = new ArrayList<>();
s3Client
.listObjects(getBucketName(), getPath(relativePath))
.getObjectSummaries()
.forEach(resource -> resources.add(new S3Resource(resource)));
return resources;
}
@Override
public void putResource(String relativePath, byte[] resource) throws Exception {
if(Util.isEmpty(relativePath)
|| resource == null) {
return;
}
AmazonS3 s3Client = getS3Instance();
InputStream inputStream = new ByteArrayInputStream(resource);
// Set metadata
ObjectMetadata metadata = new ObjectMetadata();
metadata.setContentLength(resource.length);
String fileName = getPath(relativePath);
metadata.setContentType(MimeType.getMimeType(fileName));
// Put object for bucket
s3Client.putObject(getBucketName(), fileName, inputStream, metadata);
}
@Override
public String testConnection() {
// Save file
StringBuffer message = new StringBuffer();
try {
List resources = getResourceList(null);
for(IWebDavResource resource : resources) {
if(message.length() > 0) {
message.append(Env.NL);
}
message.append(resource);
}
} catch (Exception e) {
message.append(e.getLocalizedMessage());
}
return message.toString();
}
@Override
public String putResource(ResourceMetadata resourceMetadata, InputStream resource) throws Exception {
AmazonS3 s3Client = getS3Instance();
// Set metadata
ObjectMetadata metadata = new ObjectMetadata();
metadata.setContentLength(resource.available());
String fileName = resourceMetadata.getResourceFileName();
metadata.setContentType(MimeType.getMimeType(fileName));
// Put object for bucket
s3Client.putObject(getBucketName(), resourceMetadata.getResourceFileName(), resource, metadata);
return fileName;
}
@Override
public InputStream getResource(ResourceMetadata resourceMetadata) throws Exception {
AmazonS3 s3Client = getS3Instance();
// Retrieve object
S3Object resource = null;
resource = s3Client.getObject(new GetObjectRequest(getBucketName(), resourceMetadata.getResourceFileName()));
// Prevent NPE
if(resource == null) {
return null;
}
return resource.getObjectContent();
}
}
