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core/src/main/java/org/apache/carbondata/core/datastore/filesystem/S3CarbonFile.java
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| /* | ||
| * Licensed to the Apache Software Foundation (ASF) under one or more | ||
| * contributor license agreements. See the NOTICE file distributed with | ||
| * this work for additional information regarding copyright ownership. | ||
| * The ASF licenses this file to You 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 org.apache.carbondata.core.datastore.filesystem; | ||
|
|
||
| import java.io.DataInputStream; | ||
| import java.io.DataOutputStream; | ||
| import java.io.IOException; | ||
| import java.util.ArrayList; | ||
| import java.util.List; | ||
|
|
||
| import org.apache.carbondata.common.logging.LogService; | ||
| import org.apache.carbondata.common.logging.LogServiceFactory; | ||
| import org.apache.carbondata.core.constants.CarbonCommonConstants; | ||
| import org.apache.carbondata.core.datastore.impl.FileFactory; | ||
| import org.apache.carbondata.core.util.CarbonUtil; | ||
|
|
||
| import org.apache.hadoop.conf.Configuration; | ||
| import org.apache.hadoop.fs.FSDataOutputStream; | ||
| import org.apache.hadoop.fs.FileStatus; | ||
| import org.apache.hadoop.fs.FileSystem; | ||
| import org.apache.hadoop.fs.LocatedFileStatus; | ||
| import org.apache.hadoop.fs.Path; | ||
| import org.apache.hadoop.fs.RemoteIterator; | ||
|
|
||
| public class S3CarbonFile extends HDFSCarbonFile { | ||
|
|
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| private static final LogService LOGGER = | ||
| LogServiceFactory.getLogService(HDFSCarbonFile.class.getName()); | ||
|
|
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| public S3CarbonFile(String filePath) { | ||
| super(filePath); | ||
| } | ||
|
|
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| public S3CarbonFile(String filePath, Configuration hadoopConf) { | ||
| super(filePath, hadoopConf); | ||
| } | ||
|
|
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| public S3CarbonFile(Path path) { | ||
| super(path); | ||
| } | ||
|
|
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| public S3CarbonFile(Path path, Configuration hadoopConf) { | ||
| super(path, hadoopConf); | ||
| } | ||
|
|
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| public S3CarbonFile(FileStatus fileStatus) { | ||
| super(fileStatus); | ||
| } | ||
|
|
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| @Override | ||
| public boolean renameForce(String changetoName) { | ||
| FileSystem fs; | ||
| try { | ||
| fs = fileStatus.getPath().getFileSystem(hadoopConf); | ||
| return fs.rename(fileStatus.getPath(), new Path(changetoName)); | ||
| } catch (IOException e) { | ||
| LOGGER.error("Exception occured: " + e.getMessage()); | ||
| return false; | ||
| } | ||
| } | ||
|
|
||
| @Override | ||
| public DataOutputStream getDataOutputStreamUsingAppend(String path, FileFactory.FileType fileType) | ||
| throws IOException { | ||
| return getDataOutputStream(path, fileType, CarbonCommonConstants.BYTEBUFFER_SIZE, true); | ||
| } | ||
|
|
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| @Override public DataOutputStream getDataOutputStream(String path, FileFactory.FileType fileType, | ||
| int bufferSize, boolean append) throws IOException { | ||
| Path pt = new Path(path); | ||
| FileSystem fileSystem = pt.getFileSystem(FileFactory.getConfiguration()); | ||
| FSDataOutputStream stream; | ||
| if (append) { | ||
| // append to a file only if file already exists else file not found | ||
| // exception will be thrown by hdfs | ||
| if (CarbonUtil.isFileExists(path)) { | ||
| DataInputStream dataInputStream = fileSystem.open(pt); | ||
| int count = dataInputStream.available(); | ||
| // create buffer | ||
| byte[] byteStreamBuffer = new byte[count]; | ||
| int bytesRead = dataInputStream.read(byteStreamBuffer); | ||
| stream = fileSystem.create(pt, true, bufferSize); | ||
| stream.write(byteStreamBuffer, 0, bytesRead); | ||
| } else { | ||
| stream = fileSystem.create(pt, true, bufferSize); | ||
| } | ||
| } else { | ||
| stream = fileSystem.create(pt, true, bufferSize); | ||
| } | ||
| return stream; | ||
| } | ||
|
|
||
| @Override | ||
| public CarbonFile getParentFile() { | ||
| Path parent = fileStatus.getPath().getParent(); | ||
| return null == parent ? null : new S3CarbonFile(parent, hadoopConf); | ||
| } | ||
|
|
||
| @Override | ||
| protected CarbonFile[] getFiles(FileStatus[] listStatus) { | ||
| if (listStatus == null) { | ||
| return new CarbonFile[0]; | ||
| } | ||
| CarbonFile[] files = new CarbonFile[listStatus.length]; | ||
| for (int i = 0; i < files.length; i++) { | ||
| files[i] = new S3CarbonFile(listStatus[i]); | ||
| } | ||
| return files; | ||
| } | ||
|
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| @Override | ||
| protected List<CarbonFile> getFiles(RemoteIterator<LocatedFileStatus> listStatus) | ||
| throws IOException { | ||
| List<CarbonFile> carbonFiles = new ArrayList<>(); | ||
| while (listStatus.hasNext()) { | ||
| Path filePath = listStatus.next().getPath(); | ||
| carbonFiles.add(new S3CarbonFile(filePath)); | ||
| } | ||
| return carbonFiles; | ||
| } | ||
|
|
||
| } |
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