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/*-
* ============LICENSE_START=======================================================
* SDC
* ================================================================================
* Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
* ================================================================================
* 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.
* ============LICENSE_END=========================================================
*/
package org.openecomp.sdc.be.impl;
import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.util.ArrayList;
import java.util.List;
import javax.ws.rs.WebApplicationException;
import javax.ws.rs.core.MediaType;
import javax.ws.rs.core.Response;
import javax.ws.rs.core.StreamingOutput;
import org.apache.commons.io.IOUtils;
import org.apache.http.HttpStatus;
import org.eclipse.jgit.util.Base64;
import org.openecomp.sdc.be.dao.api.ResourceUploadStatus;
import org.openecomp.sdc.be.info.ArtifactAccessInfo;
import org.openecomp.sdc.be.info.ArtifactAccessList;
import org.openecomp.sdc.be.info.ServletJsonResponse;
import org.openecomp.sdc.be.resources.data.ESArtifactData;
import org.openecomp.sdc.common.api.Constants;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import com.google.gson.Gson;
import com.google.gson.GsonBuilder;
import fj.data.Either;
public class DownloadArtifactLogic {
private static final Logger log = LoggerFactory.getLogger(DownloadArtifactLogic.class);
private Gson gson = new GsonBuilder().setPrettyPrinting().create();
public Response downloadArtifact(final String artifactName, Either<? extends ESArtifactData, ResourceUploadStatus> getArtifactStatus, String artifactId) {
Response response = null;
if (getArtifactStatus.isRight()) {
log.debug("Could not find artifact for with id: {}", artifactId);
ResourceUploadStatus status = getArtifactStatus.right().value();
if (status == ResourceUploadStatus.COMPONENT_NOT_EXIST)
response = Response.status(HttpStatus.SC_NO_CONTENT).build();
else
response = Response.status(HttpStatus.SC_NOT_FOUND).build();
return response;
}
// convert artifact to inputstream
else {
ESArtifactData artifactData = getArtifactStatus.left().value();
byte[] artifactPayload = artifactData.getDataAsArray();
log.debug("payload is encoded. perform decode");
byte[] decodedPayload = Base64.decode(new String(artifactPayload));
final InputStream artifactStream = new ByteArrayInputStream(decodedPayload);
log.debug("found artifact for with id: {}", artifactId);
// outputstream for response
StreamingOutput stream = output -> {
try {
IOUtils.copy(artifactStream, output);
} catch (IOException e) {
log.debug("failed to copy artifact payload into response");
throw new WebApplicationException(e);
}
};
return Response.ok(stream).type(MediaType.APPLICATION_OCTET_STREAM_TYPE)
.header("content-disposition", "attachment; filename = " + artifactName)
.build();
}
}
public List<ArtifactAccessInfo> convertArtifactList(List<? extends ESArtifactData> artifactsList, String servletPath) {
List<ArtifactAccessInfo> artifactAccessList = new ArrayList<ArtifactAccessInfo>();
for (ESArtifactData artifact : artifactsList) {
ArtifactAccessInfo accessInfo = new ArtifactAccessInfo(artifact, servletPath);
artifactAccessList.add(accessInfo);
}
return artifactAccessList;
}
public Response createArtifactListResponse(final String serviceName, Either<List<ESArtifactData>, ResourceUploadStatus> getArtifactsStatus/*
* List < ? extends IResourceData> artifactsList
*/, String servletPath) {
Response response;
List<ArtifactAccessInfo> artifactAccessInfos;
if (getArtifactsStatus.isRight()) {
// if there are no artifacts - return No-Content
ResourceUploadStatus status = getArtifactsStatus.right().value();
if (status == ResourceUploadStatus.COMPONENT_NOT_EXIST || status == ResourceUploadStatus.SERVICE_NOT_EXIST) {
log.debug("resource {} does not exist", serviceName);
response = Response.status(HttpStatus.SC_NOT_FOUND).entity("[]").build();
} else {
log.debug("No content was found for {}", serviceName);
response = Response.status(HttpStatus.SC_NO_CONTENT).entity("[]").build();
}
return response;
} else {
List<? extends ESArtifactData> artifactsList = getArtifactsStatus.left().value();
log.debug("{} artifacts were found for {}", artifactsList.size(), serviceName);
artifactAccessInfos = convertArtifactList(artifactsList, servletPath);
String artifactDataJson = gson.toJson(new ArtifactAccessList(artifactAccessInfos));
response = Response.status(HttpStatus.SC_OK).entity(artifactDataJson).type(MediaType.APPLICATION_JSON_TYPE).build();
return response;
}
}
public Response buildResponse(int status, String errorMessage) {
ServletJsonResponse jsonResponse = new ServletJsonResponse();
jsonResponse.setDescription(errorMessage);
jsonResponse.setSource(Constants.CATALOG_BE);
Response response = Response.status(status).entity(jsonResponse).build();
return response;
}
}
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