| /** |
| * 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.hadoop.tools; |
| |
| import org.apache.hadoop.classification.InterfaceAudience; |
| import org.apache.hadoop.classification.InterfaceStability; |
| import org.apache.hadoop.conf.Configuration; |
| import org.apache.hadoop.fs.Path; |
| import org.apache.hadoop.tools.DistCpOptions.FileAttribute; |
| |
| import java.util.List; |
| import java.util.Set; |
| |
| /** |
| * This is the context of the distcp at runtime. |
| * |
| * It has the immutable {@link DistCpOptions} and mutable runtime status. |
| */ |
| @InterfaceAudience.Private |
| @InterfaceStability.Evolving |
| public class DistCpContext { |
| private final DistCpOptions options; |
| |
| /** The source paths can be set at runtime via snapshots. */ |
| private List<Path> sourcePaths; |
| |
| /** This is a derived field, it's initialized in the beginning of distcp. */ |
| private boolean targetPathExists = true; |
| |
| /** Indicate that raw.* xattrs should be preserved if true. */ |
| private boolean preserveRawXattrs = false; |
| |
| public DistCpContext(DistCpOptions options) { |
| this.options = options; |
| this.sourcePaths = options.getSourcePaths(); |
| } |
| |
| public void setSourcePaths(List<Path> sourcePaths) { |
| this.sourcePaths = sourcePaths; |
| } |
| |
| /** |
| * @return the sourcePaths. Please note this method does not directly delegate |
| * to the {@link #options}. |
| */ |
| public List<Path> getSourcePaths() { |
| return sourcePaths; |
| } |
| |
| public Path getSourceFileListing() { |
| return options.getSourceFileListing(); |
| } |
| |
| public Path getTargetPath() { |
| return options.getTargetPath(); |
| } |
| |
| public boolean shouldAtomicCommit() { |
| return options.shouldAtomicCommit(); |
| } |
| |
| public boolean shouldSyncFolder() { |
| return options.shouldSyncFolder(); |
| } |
| |
| public boolean shouldDeleteMissing() { |
| return options.shouldDeleteMissing(); |
| } |
| |
| public boolean shouldIgnoreFailures() { |
| return options.shouldIgnoreFailures(); |
| } |
| |
| public boolean shouldOverwrite() { |
| return options.shouldOverwrite(); |
| } |
| |
| public boolean shouldAppend() { |
| return options.shouldAppend(); |
| } |
| |
| public boolean shouldSkipCRC() { |
| return options.shouldSkipCRC(); |
| } |
| |
| public boolean shouldBlock() { |
| return options.shouldBlock(); |
| } |
| |
| public boolean shouldUseDiff() { |
| return options.shouldUseDiff(); |
| } |
| |
| public boolean shouldUseRdiff() { |
| return options.shouldUseRdiff(); |
| } |
| |
| public boolean shouldUseSnapshotDiff() { |
| return options.shouldUseSnapshotDiff(); |
| } |
| |
| public String getFromSnapshot() { |
| return options.getFromSnapshot(); |
| } |
| |
| public String getToSnapshot() { |
| return options.getToSnapshot(); |
| } |
| |
| public final String getFiltersFile() { |
| return options.getFiltersFile(); |
| } |
| |
| public int getNumListstatusThreads() { |
| return options.getNumListstatusThreads(); |
| } |
| |
| public int getMaxMaps() { |
| return options.getMaxMaps(); |
| } |
| |
| public float getMapBandwidth() { |
| return options.getMapBandwidth(); |
| } |
| |
| public Set<FileAttribute> getPreserveAttributes() { |
| return options.getPreserveAttributes(); |
| } |
| |
| public boolean shouldPreserve(FileAttribute attribute) { |
| return options.shouldPreserve(attribute); |
| } |
| |
| public boolean shouldPreserveRawXattrs() { |
| return preserveRawXattrs; |
| } |
| |
| public void setPreserveRawXattrs(boolean preserveRawXattrs) { |
| this.preserveRawXattrs = preserveRawXattrs; |
| } |
| |
| public Path getAtomicWorkPath() { |
| return options.getAtomicWorkPath(); |
| } |
| |
| public Path getLogPath() { |
| return options.getLogPath(); |
| } |
| |
| public String getCopyStrategy() { |
| return options.getCopyStrategy(); |
| } |
| |
| public int getBlocksPerChunk() { |
| return options.getBlocksPerChunk(); |
| } |
| |
| public final boolean splitLargeFile() { |
| return options.getBlocksPerChunk() > 0; |
| } |
| |
| public int getCopyBufferSize() { |
| return options.getCopyBufferSize(); |
| } |
| |
| public void setTargetPathExists(boolean targetPathExists) { |
| this.targetPathExists = targetPathExists; |
| } |
| |
| public boolean isTargetPathExists() { |
| return targetPathExists; |
| } |
| |
| public void appendToConf(Configuration conf) { |
| options.appendToConf(conf); |
| } |
| |
| @Override |
| public String toString() { |
| return options.toString() + |
| ", sourcePaths=" + sourcePaths + |
| ", targetPathExists=" + targetPathExists + |
| ", preserveRawXattrs" + preserveRawXattrs; |
| } |
| |
| } |