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/**
* ============LICENSE_START=======================================================
* org.onap.aai
* ================================================================================
* Copyright © 2017 AT&T Intellectual Property. All rights reserved.
* Copyright © 2017 Amdocs
* ================================================================================
* 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=========================================================
*
* ECOMP is a trademark and service mark of AT&T Intellectual Property.
*/
package org.openecomp.sparky.synchronizer.task;
import java.io.File;
import java.io.IOException;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.Paths;
import java.util.function.Supplier;
import org.openecomp.cl.api.Logger;
import org.openecomp.sparky.dal.rest.OperationResult;
import org.openecomp.sparky.logging.AaiUiMsgs;
import com.fasterxml.jackson.databind.ObjectMapper;
/**
* The Class RetrieveOperationResultFromDisk.
*/
public class RetrieveOperationResultFromDisk implements Supplier<OperationResult> {
private String fullPath;
private ObjectMapper mapper;
private Logger logger;
/**
* Instantiates a new retrieve operation result from disk.
*
* @param fullPath the full path
* @param mapper the mapper
* @param logger the logger
*/
public RetrieveOperationResultFromDisk(String fullPath, ObjectMapper mapper, Logger logger) {
this.fullPath = fullPath;
this.mapper = mapper;
this.logger = logger;
}
/* (non-Javadoc)
* @see java.util.function.Supplier#get()
*/
@Override
public OperationResult get() {
try {
File file = new File(fullPath);
if (file.exists()) {
if (logger.isDebugEnabled()) {
logger.debug(AaiUiMsgs.WILL_RETRIEVE_TXN, fullPath);
}
Path path = Paths.get(fullPath);
byte[] byteBuffer = Files.readAllBytes(path);
OperationResult opResult = mapper.readValue(byteBuffer, OperationResult.class);
return opResult;
} else {
logger.debug(AaiUiMsgs.FAILED_TO_RESTORE_TXN_FILE_MISSING, fullPath);
}
} catch (IOException exc) {
logger.error(AaiUiMsgs.DISK_CACHE_READ_IO_ERROR, exc.getLocalizedMessage());
}
return null;
}
}
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