NIFI-4906 Add GetHDFSFileInfo

- Updated doc for write attributes
- Removing redundant files
- Updates based on review

Changes:
- changed validators for regex params (3)
- removed TriggerWhenEmpty and TriggerSerially.
- removed unused LISTING_LAG_NANOS
- removed unimplemented customValidate
- removed unsused error handling for building/updating request params
- added MIME_TYPE for content
- suppressed output to original relationship when scheduled
- added full path to original/new FF when not found
- added warning messages for huge attribute values.

This closes #2639.

Signed-off-by: Bryan Bende <bbende@apache.org>
This commit is contained in:
Ed 2018-04-17 10:26:50 -04:00 committed by Bryan Bende
parent 2fb213d26c
commit 568959baf5
No known key found for this signature in database
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11 changed files with 1536 additions and 0 deletions

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@ -95,6 +95,13 @@
<configuration>
<excludes combine.children="append">
<exclude>src/test/resources/testdata/.dotfile</exclude>
<exclude>src/test/resources/TestGetHDFSFileInfo/testRecursiveGroupDirToAttributes-mydir.json</exclude>
<exclude>src/test/resources/TestGetHDFSFileInfo/testRunWithPermissionsExceptionContent.json</exclude>
<exclude>src/test/resources/TestGetHDFSFileInfo/testRecursiveGroupDirToAttributes-regDir.json</exclude>
<exclude>src/test/resources/TestGetHDFSFileInfo/testRecursiveGroupDirToAttributes-dir1.json</exclude>
<exclude>src/test/resources/TestGetHDFSFileInfo/testRecursiveGroupDirToAttributes-dir2.json</exclude>
<exclude>src/test/resources/TestGetHDFSFileInfo/testRecursiveGroupAllToAttributes.json</exclude>
<exclude>src/test/resources/TestGetHDFSFileInfo/testRecursiveGroupDirToAttributes-regDir2.json</exclude>
</excludes>
</configuration>
</plugin>

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@ -0,0 +1,797 @@
/*
* 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.nifi.processors.hadoop;
import java.io.IOException;
import java.security.PrivilegedExceptionAction;
import java.util.ArrayList;
import java.util.Collection;
import java.util.HashMap;
import java.util.HashSet;
import java.util.LinkedList;
import java.util.List;
import java.util.Map;
import java.util.Set;
import java.util.regex.Pattern;
import org.apache.commons.lang3.StringUtils;
import org.apache.hadoop.fs.FileStatus;
import org.apache.hadoop.fs.FileSystem;
import org.apache.hadoop.fs.Path;
import org.apache.hadoop.fs.permission.FsAction;
import org.apache.hadoop.fs.permission.FsPermission;
import org.apache.hadoop.security.UserGroupInformation;
import org.apache.nifi.annotation.behavior.InputRequirement;
import org.apache.nifi.annotation.behavior.InputRequirement.Requirement;
import org.apache.nifi.annotation.behavior.WritesAttribute;
import org.apache.nifi.annotation.behavior.WritesAttributes;
import org.apache.nifi.annotation.documentation.CapabilityDescription;
import org.apache.nifi.annotation.documentation.SeeAlso;
import org.apache.nifi.annotation.documentation.Tags;
import org.apache.nifi.components.AllowableValue;
import org.apache.nifi.components.PropertyDescriptor;
import org.apache.nifi.components.PropertyValue;
import org.apache.nifi.expression.ExpressionLanguageScope;
import org.apache.nifi.flowfile.FlowFile;
import org.apache.nifi.flowfile.attributes.CoreAttributes;
import org.apache.nifi.processor.ProcessContext;
import org.apache.nifi.processor.ProcessSession;
import org.apache.nifi.processor.ProcessorInitializationContext;
import org.apache.nifi.processor.Relationship;
import org.apache.nifi.processor.exception.ProcessException;
import org.apache.nifi.processor.util.StandardValidators;
import org.apache.nifi.processors.hadoop.GetHDFSFileInfo.HDFSFileInfoRequest.Groupping;
@InputRequirement(Requirement.INPUT_ALLOWED)
@Tags({"hadoop", "HDFS", "get", "list", "ingest", "source", "filesystem"})
@CapabilityDescription("Retrieves a listing of files and directories from HDFS. "
+ "This processor creates a FlowFile(s) that represents the HDFS file/dir with relevant information. "
+ "Main purpose of this processor to provide functionality similar to HDFS Client, i.e. count, du, ls, test, etc. "
+ "Unlike ListHDFS, this processor is stateless, supports incoming connections and provides information on a dir level. "
)
@WritesAttributes({
@WritesAttribute(attribute="hdfs.objectName", description="The name of the file/dir found on HDFS."),
@WritesAttribute(attribute="hdfs.path", description="The path is set to the absolute path of the object's parent directory on HDFS. "
+ "For example, if an object is a directory 'foo', under directory '/bar' then 'hdfs.objectName' will have value 'foo', and 'hdfs.path' will be '/bar'"),
@WritesAttribute(attribute="hdfs.type", description="The type of an object. Possible values: directory, file, link"),
@WritesAttribute(attribute="hdfs.owner", description="The user that owns the object in HDFS"),
@WritesAttribute(attribute="hdfs.group", description="The group that owns the object in HDFS"),
@WritesAttribute(attribute="hdfs.lastModified", description="The timestamp of when the object in HDFS was last modified, as milliseconds since midnight Jan 1, 1970 UTC"),
@WritesAttribute(attribute="hdfs.length", description=""
+ "In case of files: The number of bytes in the file in HDFS. "
+ "In case of dirs: Retuns storage space consumed by directory. "
+ ""),
@WritesAttribute(attribute="hdfs.count.files", description="In case of type='directory' will represent total count of files under this dir. "
+ "Won't be populated to other types of HDFS objects. "),
@WritesAttribute(attribute="hdfs.count.dirs", description="In case of type='directory' will represent total count of directories under this dir (including itself). "
+ "Won't be populated to other types of HDFS objects. "),
@WritesAttribute(attribute="hdfs.replication", description="The number of HDFS replicas for the file"),
@WritesAttribute(attribute="hdfs.permissions", description="The permissions for the object in HDFS. This is formatted as 3 characters for the owner, "
+ "3 for the group, and 3 for other users. For example rw-rw-r--"),
@WritesAttribute(attribute="hdfs.status", description="The status contains comma separated list of file/dir paths, which couldn't be listed/accessed. "
+ "Status won't be set if no errors occured."),
@WritesAttribute(attribute="hdfs.full.tree", description="When destination is 'attribute', will be populated with full tree of HDFS directory in JSON format."
+ "WARNING: In case when scan finds thousands or millions of objects, having huge values in attribute could impact flow file repo and GC/heap usage. "
+ "Use content destination for such cases")
})
@SeeAlso({ListHDFS.class, GetHDFS.class, FetchHDFS.class, PutHDFS.class})
public class GetHDFSFileInfo extends AbstractHadoopProcessor {
public static final String APPLICATION_JSON = "application/json";
public static final PropertyDescriptor FULL_PATH = new PropertyDescriptor.Builder()
.displayName("Full path")
.name("gethdfsfileinfo-full-path")
.description("A directory to start listing from, or a file's full path.")
.required(true)
.expressionLanguageSupported(ExpressionLanguageScope.FLOWFILE_ATTRIBUTES)
.defaultValue("")
.addValidator(StandardValidators.NON_BLANK_VALIDATOR)
.build();
public static final PropertyDescriptor RECURSE_SUBDIRS = new PropertyDescriptor.Builder()
.displayName("Recurse Subdirectories")
.name("gethdfsfileinfo-recurse-subdirs")
.description("Indicates whether to list files from subdirectories of the HDFS directory")
.required(true)
.allowableValues("true", "false")
.defaultValue("true")
.addValidator(StandardValidators.BOOLEAN_VALIDATOR)
.build();
public static final PropertyDescriptor DIR_FILTER = new PropertyDescriptor.Builder()
.displayName("Directory Filter")
.name("gethdfsfileinfo-dir-filter")
.description("Regex. Only directories whose names match the given regular expression will be picked up. If not provided, any filter would be apply (performance considerations).")
.expressionLanguageSupported(ExpressionLanguageScope.FLOWFILE_ATTRIBUTES)
.required(false)
.addValidator(StandardValidators.createRegexValidator(0, Integer.MAX_VALUE, true))
.build();
public static final PropertyDescriptor FILE_FILTER = new PropertyDescriptor.Builder()
.displayName("File Filter")
.name("gethdfsfileinfo-file-filter")
.description("Regex. Only files whose names match the given regular expression will be picked up. If not provided, any filter would be apply (performance considerations).")
.expressionLanguageSupported(ExpressionLanguageScope.FLOWFILE_ATTRIBUTES)
.required(false)
.addValidator(StandardValidators.createRegexValidator(0, Integer.MAX_VALUE, true))
.build();
public static final PropertyDescriptor FILE_EXCLUDE_FILTER = new PropertyDescriptor.Builder()
.displayName("Exclude Files")
.name("gethdfsfileinfo-file-exclude-filter")
.description("Regex. Files whose names match the given regular expression will not be picked up. If not provided, any filter won't be apply (performance considerations).")
.expressionLanguageSupported(ExpressionLanguageScope.FLOWFILE_ATTRIBUTES)
.required(false)
.addValidator(StandardValidators.createRegexValidator(0, Integer.MAX_VALUE, true))
.build();
public static final PropertyDescriptor IGNORE_DOTTED_DIRS = new PropertyDescriptor.Builder()
.displayName("Ignore Dotted Directories")
.name("gethdfsfileinfo-ignore-dotted-dirs")
.description("If true, directories whose names begin with a dot (\".\") will be ignored")
.required(true)
.addValidator(StandardValidators.BOOLEAN_VALIDATOR)
.allowableValues("true", "false")
.defaultValue("true")
.build();
public static final PropertyDescriptor IGNORE_DOTTED_FILES = new PropertyDescriptor.Builder()
.displayName("Ignore Dotted Files")
.name("gethdfsfileinfo-ignore-dotted-files")
.description("If true, files whose names begin with a dot (\".\") will be ignored")
.required(true)
.addValidator(StandardValidators.BOOLEAN_VALIDATOR)
.allowableValues("true", "false")
.defaultValue("true")
.build();
static final AllowableValue GROUP_ALL = new AllowableValue("gethdfsfileinfo-group-all", "All",
"Group all results into a single flowfile.");
static final AllowableValue GROUP_PARENT_DIR = new AllowableValue("gethdfsfileinfo-group-parent-dir", "Parent Directory",
"Group HDFS objects by their parent directories only. Processor will generate flowfile for each directory (if recursive). "
+ "If 'Recurse Subdirectories' property set to 'false', then will have the same effect as 'All'");
static final AllowableValue GROUP_NONE = new AllowableValue("gethdfsfileinfo-group-none", "None",
"Don't group results. Generate flowfile per each HDFS object.");
public static final PropertyDescriptor GROUPING = new PropertyDescriptor.Builder()
.displayName("Group Results")
.name("gethdfsfileinfo-group")
.description("Groups HDFS objects")
.required(true)
.addValidator(StandardValidators.NON_EMPTY_VALIDATOR)
.allowableValues(GROUP_ALL, GROUP_PARENT_DIR, GROUP_NONE)
.defaultValue(GROUP_ALL.getValue())
.build();
static final AllowableValue DESTINATION_ATTRIBUTES = new AllowableValue("gethdfsfileinfo-dest-attr", "Attributes",
"Details of given HDFS object will be stored in attributes of flowfile. "
+ "WARNING: In case when scan finds thousands or millions of objects, having huge values in attribute could impact flow file repo and GC/heap usage. "
+ "Use content destination for such cases.");
static final AllowableValue DESTINATION_CONTENT = new AllowableValue("gethdfsfileinfo-dest-content", "Content",
"Details of given HDFS object will be stored in a content in JSON format");
public static final PropertyDescriptor DESTINATION = new PropertyDescriptor.Builder()
.displayName("Destination")
.name("gethdfsfileinfo-destination")
.description("Sets the destination for the resutls. When set to 'Content', attributes of flowfile won't be used for storing results. ")
.required(true)
.addValidator(StandardValidators.NON_EMPTY_VALIDATOR)
.allowableValues(DESTINATION_ATTRIBUTES, DESTINATION_CONTENT)
.defaultValue(DESTINATION_CONTENT.getValue())
.build();
public static final Relationship REL_SUCCESS = new Relationship.Builder()
.name("success")
.description("All successfully generated FlowFiles are transferred to this relationship")
.build();
public static final Relationship REL_NOT_FOUND = new Relationship.Builder()
.name("not found")
.description("If no objects are found, original FlowFile are transferred to this relationship")
.build();
public static final Relationship REL_ORIGINAL = new Relationship.Builder()
.name("original")
.description("Original FlowFiles are transferred to this relationship")
.build();
public static final Relationship REL_FAILURE = new Relationship.Builder()
.name("failure")
.description("All failed attempts to access HDFS will be routed to this relationship")
.build();
private HDFSFileInfoRequest req;
@Override
protected void init(final ProcessorInitializationContext context) {
super.init(context);
}
@Override
protected List<PropertyDescriptor> getSupportedPropertyDescriptors() {
final List<PropertyDescriptor> props = new ArrayList<>(properties);
props.add(FULL_PATH);
props.add(RECURSE_SUBDIRS);
props.add(DIR_FILTER);
props.add(FILE_FILTER);
props.add(FILE_EXCLUDE_FILTER);
props.add(IGNORE_DOTTED_DIRS);
props.add(IGNORE_DOTTED_FILES);
props.add(GROUPING);
props.add(DESTINATION);
return props;
}
@Override
public Set<Relationship> getRelationships() {
final Set<Relationship> relationships = new HashSet<>();
relationships.add(REL_SUCCESS);
relationships.add(REL_NOT_FOUND);
relationships.add(REL_ORIGINAL);
relationships.add(REL_FAILURE);
return relationships;
}
@Override
public void onPropertyModified(PropertyDescriptor descriptor, String oldValue, String newValue) {
super.onPropertyModified(descriptor, oldValue, newValue);
// drop request details to rebuild it
req = null;
}
@Override
public void onTrigger(final ProcessContext context, final ProcessSession session) throws ProcessException {
FlowFile ff = null;
if (context.hasIncomingConnection()) {
ff = session.get();
// If we have no FlowFile, and all incoming connections are self-loops then we can continue on.
// However, if we have no FlowFile and we have connections coming from other Processors, then
// we know that we should run only if we have a FlowFile.
if (ff == null && context.hasNonLoopConnection()) {
context.yield();
return;
}
}
boolean scheduledFF = false;
if (ff == null) {
ff = session.create();
scheduledFF = true;
}
if (req == null) {
//rebuild the request details based on
req = buildRequestDetails(context, session, ff);
}else {
//avoid rebuilding req object's patterns in order to have better performance
req = updateRequestDetails(context, session, ff);
}
try {
final FileSystem hdfs = getFileSystem();
UserGroupInformation ugi = getUserGroupInformation();
HDFSObjectInfoDetails res = walkHDFSTree(context, session, ff, hdfs, ugi, req, null, false);
if (res == null) {
ff = session.putAttribute(ff, "hdfs.status", "Path not found: " + req.fullPath);
session.transfer(ff, REL_NOT_FOUND);
return;
}
if (!scheduledFF) {
session.transfer(ff, REL_ORIGINAL);
}else {
session.remove(ff);
}
} catch (final IOException | IllegalArgumentException e) {
getLogger().error("Failed to perform listing of HDFS due to {}", new Object[] {e});
ff = session.putAttribute(ff, "hdfs.status", "Failed due to: " + e);
session.transfer(ff, REL_FAILURE);
return;
} catch (final InterruptedException e) {
Thread.currentThread().interrupt();
getLogger().error("Interrupted while performing listing of HDFS", e);
ff = session.putAttribute(ff, "hdfs.status", "Failed due to: " + e);
session.transfer(ff, REL_FAILURE);
return;
} catch (final Exception e) {
getLogger().error("Failed to perform listing of HDFS due to {}", new Object[] {e});
ff = session.putAttribute(ff, "hdfs.status", "Failed due to: " + e);
session.transfer(ff, REL_FAILURE);
return;
}
}
/*
* Walks thru HDFS tree. This method will return null to the main if there is no provided path existing.
*/
protected HDFSObjectInfoDetails walkHDFSTree(final ProcessContext context, final ProcessSession session, FlowFile origFF, final FileSystem hdfs,
final UserGroupInformation ugi, final HDFSFileInfoRequest req, HDFSObjectInfoDetails parent, final boolean statsOnly) throws Exception{
final HDFSObjectInfoDetails p = parent;
if (!ugi.doAs((PrivilegedExceptionAction<Boolean>) () -> hdfs.exists(p != null ? p.getPath() : new Path(req.fullPath)))) {
return null;
}
if (parent == null) {
parent = new HDFSObjectInfoDetails(ugi.doAs((PrivilegedExceptionAction<FileStatus>) () -> hdfs.getFileStatus(new Path(req.fullPath))));
}
if (parent.isFile() && p == null) {
//single file path requested and found, lets send to output:
processHDFSObject(context, session, origFF, req, parent, true);
return parent;
}
final Path path = parent.getPath();
FileStatus[] listFSt = null;
try {
listFSt = ugi.doAs((PrivilegedExceptionAction<FileStatus[]>) () -> hdfs.listStatus(path));
}catch (IOException e) {
parent.error = "Couldn't list directory: " + e;
processHDFSObject(context, session, origFF, req, parent, p == null);
return parent; //File not found exception, or access denied - don't interrupt, just don't list
}
if (listFSt != null) {
for (FileStatus f : listFSt) {
HDFSObjectInfoDetails o = new HDFSObjectInfoDetails(f);
HDFSObjectInfoDetails vo = validateMatchingPatterns(o, req);
if (o.isDirectory() && !o.isSymlink() && req.isRecursive) {
o = walkHDFSTree(context, session, origFF, hdfs, ugi, req, o, vo == null || statsOnly);
parent.countDirs += o.countDirs;
parent.totalLen += o.totalLen;
parent.countFiles += o.countFiles;
}else if (o.isDirectory() && o.isSymlink()) {
parent.countDirs += 1;
}else if (o.isFile() && !o.isSymlink()) {
parent.countFiles += 1;
parent.totalLen += o.getLen();
}else if (o.isFile() && o.isSymlink()) {
parent.countFiles += 1; // do not add length of the symlink, as it doesn't consume space under THIS directory, but count files, as it is still an object.
}
// Decide what to do with child: if requested FF per object or per dir - just emit new FF with info in 'o' object
if (vo != null && !statsOnly) {
parent.addChild(vo);
if (p != null && req.isRecursive
&& vo.isFile() && !vo.isSymlink()) {
processHDFSObject(context, session, origFF, req, vo, false);
}
}
}
if (!statsOnly) {
processHDFSObject(context, session, origFF, req, parent, p==null);
}
if (req.groupping != Groupping.ALL) {
parent.setChildren(null); //we need children in full tree only when single output requested.
}
}
return parent;
}
protected HDFSObjectInfoDetails validateMatchingPatterns(final HDFSObjectInfoDetails o, HDFSFileInfoRequest req) {
if (o == null || o.getPath() == null) {
return null;
}
if (o.isFile()) {
if (req.isIgnoreDotFiles && o.getPath().getName().startsWith(".")) {
return null;
}else if (req.fileExcludeFilter != null && req.fileExcludeFilter.matcher(o.getPath().getName()).matches()) {
return null;
}else if (req.fileFilter == null) {
return o;
}else if (req.fileFilter != null && req.fileFilter.matcher(o.getPath().getName()).matches()) {
return o;
}else {
return null;
}
}
if (o.isDirectory()) {
if (req.isIgnoreDotDirs && o.getPath().getName().startsWith(".")) {
return null;
}else if (req.dirFilter == null) {
return o;
}else if (req.dirFilter != null && req.dirFilter.matcher(o.getPath().getName()).matches()) {
return o;
}else {
return null;
}
}
return null;
}
/*
* Checks whether HDFS object should be sent to output.
* If it should be sent, new flowfile will be created, its content and attributes will be populated according to other request params.
*/
protected HDFSObjectInfoDetails processHDFSObject(final ProcessContext context, final ProcessSession session,
FlowFile origFF, final HDFSFileInfoRequest req, final HDFSObjectInfoDetails o, final boolean isRoot) {
if (o.isFile() && req.groupping != Groupping.NONE) {
return null; //there is grouping by either root directory or every directory, no need to print separate files.
}
if (o.isDirectory() && o.isSymlink() && req.groupping != Groupping.NONE) {
return null; //ignore symlink dirs an
}
if (o.isDirectory() && req.groupping == Groupping.ALL && !isRoot) {
return null;
}
FlowFile ff = session.create(origFF);
//if destination type is content - always add mime type
if (req.isDestContent) {
ff = session.putAttribute(ff, CoreAttributes.MIME_TYPE.key(), APPLICATION_JSON);
}
//won't combine conditions for similar actions for better readability and maintenance.
if (o.isFile() && isRoot && req.isDestContent) {
ff = session.write(ff, (out) -> out.write(o.toJsonString().getBytes()));
// ------------------------------
}else if (o.isFile() && isRoot && !req.isDestContent) {
ff = session.putAllAttributes(ff, o.toAttributesMap());
// ------------------------------
}else if (o.isFile() && req.isDestContent) {
ff = session.write(ff, (out) -> out.write(o.toJsonString().getBytes()));
// ------------------------------
}else if (o.isFile() && !req.isDestContent) {
ff = session.putAllAttributes(ff, o.toAttributesMap());
// ------------------------------
}else if (o.isDirectory() && o.isSymlink() && req.isDestContent) {
ff = session.write(ff, (out) -> out.write(o.toJsonString().getBytes()));
// ------------------------------
}else if (o.isDirectory() && o.isSymlink() && !req.isDestContent) {
ff = session.putAllAttributes(ff, o.toAttributesMap());
// ------------------------------
}else if (o.isDirectory() && req.groupping == Groupping.NONE && req.isDestContent) {
o.setChildren(null);
ff = session.write(ff, (out) -> out.write(o.toJsonString().getBytes()));
// ------------------------------
}else if (o.isDirectory() && req.groupping == Groupping.NONE && !req.isDestContent) {
ff = session.putAllAttributes(ff, o.toAttributesMap());
// ------------------------------
}else if (o.isDirectory() && req.groupping == Groupping.DIR && req.isDestContent) {
ff = session.write(ff, (out) -> out.write(o.toJsonString().getBytes()));
// ------------------------------
}else if (o.isDirectory() && req.groupping == Groupping.DIR && !req.isDestContent) {
ff = session.putAllAttributes(ff, o.toAttributesMap());
ff = session.putAttribute(ff, "hdfs.full.tree", o.toJsonString());
// ------------------------------
}else if (o.isDirectory() && req.groupping == Groupping.ALL && req.isDestContent) {
ff = session.write(ff, (out) -> out.write(o.toJsonString().getBytes()));
// ------------------------------
}else if (o.isDirectory() && req.groupping == Groupping.ALL && !req.isDestContent) {
ff = session.putAllAttributes(ff, o.toAttributesMap());
ff = session.putAttribute(ff, "hdfs.full.tree", o.toJsonString());
}else {
getLogger().error("Illegal State!");
session.remove(ff);
return null;
}
session.transfer(ff, REL_SUCCESS);
return o;
}
/*
* Returns permissions in readable format like rwxr-xr-x (755)
*/
protected String getPerms(final FsPermission permission) {
final StringBuilder sb = new StringBuilder();
for (FsAction action : new FsAction[]{permission.getUserAction(), permission.getGroupAction(), permission.getOtherAction()}) {
if (action.implies(FsAction.READ)) {
sb.append("r");
} else {
sb.append("-");
}
if (action.implies(FsAction.WRITE)) {
sb.append("w");
} else {
sb.append("-");
}
if (action.implies(FsAction.EXECUTE)) {
sb.append("x");
} else {
sb.append("-");
}
}
return sb.toString();
}
/*
* Creates internal request object and initialize the fields that won't be changed every call (onTrigger).
* Dynamic fields will be updated per each call separately.
*/
protected HDFSFileInfoRequest buildRequestDetails(ProcessContext context, ProcessSession session, FlowFile ff) {
HDFSFileInfoRequest req = new HDFSFileInfoRequest();
req.fullPath = context.getProperty(FULL_PATH).evaluateAttributeExpressions(ff).getValue();
req.isRecursive = context.getProperty(RECURSE_SUBDIRS).asBoolean();
PropertyValue pv = null;
String v = null;
if (context.getProperty(DIR_FILTER).isSet() && (pv=context.getProperty(DIR_FILTER).evaluateAttributeExpressions(ff))!=null) {
v = pv.getValue();
req.dirFilter = v == null ? null : Pattern.compile(v);
}
if (context.getProperty(FILE_FILTER).isSet() && (pv=context.getProperty(FILE_FILTER).evaluateAttributeExpressions(ff))!=null) {
v = pv.getValue();
req.fileFilter = v == null ? null : Pattern.compile(v);
}
if (context.getProperty(FILE_EXCLUDE_FILTER).isSet() && (pv=context.getProperty(FILE_EXCLUDE_FILTER).evaluateAttributeExpressions(ff))!=null) {
v = pv.getValue();
req.fileExcludeFilter = v == null ? null : Pattern.compile(v);
}
req.isIgnoreDotFiles = context.getProperty(IGNORE_DOTTED_FILES).asBoolean();
req.isIgnoreDotDirs = context.getProperty(IGNORE_DOTTED_DIRS).asBoolean();
req.groupping = HDFSFileInfoRequest.Groupping.getEnum(context.getProperty(GROUPING).getValue());
v = context.getProperty(DESTINATION).getValue();
if (DESTINATION_CONTENT.getValue().equals(v)) {
req.isDestContent = true;
}else {
req.isDestContent = false;
}
return req;
}
/*
* Creates internal request object if not created previously, and updates it with dynamic property every time onTrigger is called.
* Avoids creating regex Patter objects unless their actual value are changed due to evaluation of EL
*/
protected HDFSFileInfoRequest updateRequestDetails(ProcessContext context, ProcessSession session, FlowFile ff) {
if (req == null) {
return buildRequestDetails(context, session, ff);
}
req.fullPath = context.getProperty(FULL_PATH).evaluateAttributeExpressions(ff).getValue();
String currValue = null;
String oldValue = null;
currValue = context.getProperty(DIR_FILTER).evaluateAttributeExpressions(ff).getValue();
oldValue = req.dirFilter == null ? null : req.dirFilter.toString();
if (StringUtils.compare(currValue, oldValue) != 0) {
req.dirFilter = currValue == null ? null : Pattern.compile(currValue);
}
currValue = context.getProperty(FILE_FILTER).evaluateAttributeExpressions(ff).getValue();
oldValue = req.fileFilter == null ? null : req.fileFilter.toString();
if (StringUtils.compare(currValue, oldValue) != 0) {
req.fileFilter = currValue == null ? null : Pattern.compile(currValue);
}
currValue = context.getProperty(FILE_EXCLUDE_FILTER).evaluateAttributeExpressions(ff).getValue();
oldValue = req.fileExcludeFilter == null ? null : req.fileExcludeFilter.toString();
if (StringUtils.compare(currValue, oldValue) != 0) {
req.fileExcludeFilter = currValue == null ? null : Pattern.compile(currValue);
}
return req;
}
/*
* Keeps all request details in single object.
*/
static class HDFSFileInfoRequest{
enum Groupping {
ALL(GROUP_ALL.getValue()),
DIR(GROUP_PARENT_DIR.getValue()),
NONE(GROUP_NONE.getValue());
private String val;
Groupping(String val){
this.val = val;
}
public String toString() {
return this.val;
}
public static Groupping getEnum(String value) {
for (Groupping v : values()) {
if (v.val.equals(value)) {
return v;
}
}
return null;
}
}
String fullPath;
boolean isRecursive;
Pattern dirFilter;
Pattern fileFilter;
Pattern fileExcludeFilter;
boolean isIgnoreDotFiles;
boolean isIgnoreDotDirs;
boolean isDestContent;
Groupping groupping;
}
/*
* Keeps details of HDFS objects.
* This class is based on FileStatus and adds additional feature/properties for count, total size of directories, and subtrees/hierarchy of recursive listings.
*/
class HDFSObjectInfoDetails extends FileStatus{
private long countFiles;
private long countDirs = 1;
private long totalLen;
private Collection<HDFSObjectInfoDetails> children = new LinkedList<>();
private String error;
HDFSObjectInfoDetails(FileStatus fs) throws IOException{
super(fs);
}
public long getCountFiles() {
return countFiles;
}
public void setCountFiles(long countFiles) {
this.countFiles = countFiles;
}
public long getCountDirs() {
return countDirs;
}
public void setCountDirs(long countDirs) {
this.countDirs = countDirs;
}
public long getTotalLen() {
return totalLen;
}
public void setTotalLen(long totalLen) {
this.totalLen = totalLen;
}
public Collection<HDFSObjectInfoDetails> getChildren() {
return children;
}
public String getError() {
return error;
}
public void setError(String error) {
this.error = error;
}
public void setChildren(Collection<HDFSObjectInfoDetails> children) {
this.children = children;
}
public void addChild(HDFSObjectInfoDetails child) {
this.children.add(child);
}
public void updateTotals(boolean deepUpdate) {
if (deepUpdate) {
this.countDirs = 1;
this.countFiles = 0;
this.totalLen = 0;
}
for(HDFSObjectInfoDetails c : children) {
if (c.isSymlink()) {
continue; //do not count symlinks. they either will be counted under their actual directories, or won't be count if actual location is not under provided root for scan.
}else if (c.isDirectory()) {
if (deepUpdate) {
c.updateTotals(deepUpdate);
}
this.totalLen += c.totalLen;
this.countDirs += c.countDirs;
this.countFiles += c.countFiles;
}else if (c.isFile()) {
this.totalLen += c.getLen();
this.countFiles++;
}
}
}
/*
* Since, by definition, FF will keep only attributes for parent/single object, we don't need to recurse the children
*/
public Map<String, String> toAttributesMap(){
Map<String, String> map = new HashMap<>();
map.put("hdfs.objectName", this.getPath().getName());
map.put("hdfs.path", Path.getPathWithoutSchemeAndAuthority(this.getPath().getParent()).toString());
map.put("hdfs.type", this.isSymlink() ? "link" : (this.isDirectory() ? "directory" : "file"));
map.put("hdfs.owner", this.getOwner());
map.put("hdfs.group", this.getGroup());
map.put("hdfs.lastModified", Long.toString(this.getModificationTime()));
map.put("hdfs.length", Long.toString(this.isDirectory() ? this.totalLen : this.getLen()));
map.put("hdfs.replication", Long.toString(this.getReplication()));
if (this.isDirectory()) {
map.put("hdfs.count.files", Long.toString(this.getCountFiles()));
map.put("hdfs.count.dirs", Long.toString(this.getCountDirs()));
}
map.put("hdfs.permissions", getPerms(this.getPermission()));
if (this.error != null) {
map.put("hdfs.status", "Error: " + this.error);
}
return map;
}
/*
* The decision to use custom serialization (vs jackson/velocity/gson/etc) is behind the performance.
* This object is pretty simple, with limited number of members of simple types.
*/
public String toJsonString() {
StringBuilder sb = new StringBuilder();
return toJsonString(sb).toString();
}
private StringBuilder toJsonString(StringBuilder sb) {
sb.append("{");
appendProperty(sb, "objectName", this.getPath().getName()).append(",");
appendProperty(sb, "path", Path.getPathWithoutSchemeAndAuthority(this.getPath().getParent()).toString()).append(",");
appendProperty(sb, "type", this.isSymlink() ? "link" : (this.isDirectory() ? "directory" : "file")).append(",");
appendProperty(sb, "owner", this.getOwner()).append(",");
appendProperty(sb, "group", this.getGroup()).append(",");
appendProperty(sb, "lastModified", Long.toString(this.getModificationTime())).append(",");
appendProperty(sb, "length", Long.toString(this.isDirectory() ? this.totalLen : this.getLen())).append(",");
appendProperty(sb, "replication", Long.toString(this.getReplication())).append(",");
if (this.isDirectory()) {
appendProperty(sb, "countFiles", Long.toString(this.getCountFiles())).append(",");
appendProperty(sb, "countDirs", Long.toString(this.getCountDirs())).append(",");
}
appendProperty(sb, "permissions", getPerms(this.getPermission()));
if (this.error != null) {
sb.append(",");
appendProperty(sb, "status", this.error);
}
if (this.getChildren() != null && this.getChildren().size() > 0) {
sb.append(",\"content\":[");
for (HDFSObjectInfoDetails c : this.getChildren()) {
c.toJsonString(sb).append(",");
}
sb.deleteCharAt(sb.length()-1).append("]");
}
sb.append("}");
return sb;
}
private StringBuilder appendProperty(StringBuilder sb, String name, String value) {
return sb.append("\"").append(name).append("\":\"").append(value == null? "": value).append("\"");
}
}
}

View File

@ -21,3 +21,4 @@ org.apache.nifi.processors.hadoop.ListHDFS
org.apache.nifi.processors.hadoop.PutHDFS
org.apache.nifi.processors.hadoop.DeleteHDFS
org.apache.nifi.processors.hadoop.MoveHDFS
org.apache.nifi.processors.hadoop.GetHDFSFileInfo

View File

@ -0,0 +1,724 @@
/*
* 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.nifi.processors.hadoop;
import static org.junit.Assert.assertEquals;
import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.when;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.net.URI;
import java.nio.file.Files;
import java.nio.file.Paths;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Map;
import java.util.Set;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.fs.FSDataInputStream;
import org.apache.hadoop.fs.FSDataOutputStream;
import org.apache.hadoop.fs.FileStatus;
import org.apache.hadoop.fs.FileSystem;
import org.apache.hadoop.fs.Path;
import org.apache.hadoop.fs.permission.FsPermission;
import org.apache.hadoop.util.Progressable;
import org.apache.nifi.hadoop.KerberosProperties;
import org.apache.nifi.processor.ProcessContext;
import org.apache.nifi.reporting.InitializationException;
import org.apache.nifi.util.MockFlowFile;
import org.apache.nifi.util.NiFiProperties;
import org.apache.nifi.util.TestRunner;
import org.apache.nifi.util.TestRunners;
import org.junit.Assert;
import org.junit.Before;
import org.junit.Test;
import com.google.common.collect.Maps;
public class TestGetHDFSFileInfo {
private TestRunner runner;
private GetHDFSFileInfoWithMockedFileSystem proc;
private NiFiProperties mockNiFiProperties;
private KerberosProperties kerberosProperties;
@Before
public void setup() throws InitializationException {
mockNiFiProperties = mock(NiFiProperties.class);
when(mockNiFiProperties.getKerberosConfigurationFile()).thenReturn(null);
kerberosProperties = new KerberosProperties(null);
proc = new GetHDFSFileInfoWithMockedFileSystem(kerberosProperties);
runner = TestRunners.newTestRunner(proc);
runner.setProperty(GetHDFSFileInfo.HADOOP_CONFIGURATION_RESOURCES, "src/test/resources/core-site.xml");
}
@Test
public void testNoRunOnIncomingConnectionExists() throws InterruptedException {
setFileSystemBasicTree(proc.fileSystem);
runner.setIncomingConnection(true);
runner.setProperty(GetHDFSFileInfo.FULL_PATH, "${literal('/some/home/mydir'):substring(0,15)}");
runner.setProperty(GetHDFSFileInfo.RECURSE_SUBDIRS, "true");
runner.setProperty(GetHDFSFileInfo.IGNORE_DOTTED_DIRS, "true");
runner.setProperty(GetHDFSFileInfo.IGNORE_DOTTED_FILES, "true");
runner.setProperty(GetHDFSFileInfo.DESTINATION, GetHDFSFileInfo.DESTINATION_CONTENT);
runner.run();
runner.assertTransferCount(GetHDFSFileInfo.REL_ORIGINAL, 0);
runner.assertTransferCount(GetHDFSFileInfo.REL_SUCCESS, 0);
runner.assertTransferCount(GetHDFSFileInfo.REL_FAILURE, 0);
runner.assertTransferCount(GetHDFSFileInfo.REL_NOT_FOUND, 0);
}
@Test
public void testRunOnScheduleNoConnections() throws InterruptedException {
setFileSystemBasicTree(proc.fileSystem);
runner.setIncomingConnection(false);
runner.setProperty(GetHDFSFileInfo.FULL_PATH, "/some/home/mydir");
runner.setProperty(GetHDFSFileInfo.RECURSE_SUBDIRS, "false");
runner.setProperty(GetHDFSFileInfo.IGNORE_DOTTED_DIRS, "true");
runner.setProperty(GetHDFSFileInfo.IGNORE_DOTTED_FILES, "true");
runner.setProperty(GetHDFSFileInfo.DESTINATION, GetHDFSFileInfo.DESTINATION_CONTENT);
runner.run();
runner.assertTransferCount(GetHDFSFileInfo.REL_ORIGINAL, 0);
runner.assertTransferCount(GetHDFSFileInfo.REL_SUCCESS, 1);
runner.assertTransferCount(GetHDFSFileInfo.REL_FAILURE, 0);
runner.assertTransferCount(GetHDFSFileInfo.REL_NOT_FOUND, 0);
}
@Test
public void testValidELFunction() throws InterruptedException {
setFileSystemBasicTree(proc.fileSystem);
runner.setIncomingConnection(true);
runner.setProperty(GetHDFSFileInfo.FULL_PATH, "${literal('/some/home/mydir'):substring(0,16)}");
runner.setProperty(GetHDFSFileInfo.DIR_FILTER, "${literal('_^(dir.*)$_'):substring(1,10)}");
runner.setProperty(GetHDFSFileInfo.FILE_FILTER, "${literal('_^(.*)$_'):substring(1,7)}");
runner.setProperty(GetHDFSFileInfo.FILE_EXCLUDE_FILTER, "${literal('_^(none.*)$_'):substring(1,11)}");
runner.setProperty(GetHDFSFileInfo.RECURSE_SUBDIRS, "false");
runner.setProperty(GetHDFSFileInfo.IGNORE_DOTTED_DIRS, "true");
runner.setProperty(GetHDFSFileInfo.IGNORE_DOTTED_FILES, "true");
runner.setProperty(GetHDFSFileInfo.DESTINATION, GetHDFSFileInfo.DESTINATION_CONTENT);
runner.enqueue("foo", new HashMap<String,String>());
runner.run();
runner.assertTransferCount(GetHDFSFileInfo.REL_ORIGINAL, 1);
final MockFlowFile mff = runner.getFlowFilesForRelationship(GetHDFSFileInfo.REL_ORIGINAL).get(0);
ProcessContext context = runner.getProcessContext();
assertEquals(context.getProperty(GetHDFSFileInfo.FULL_PATH).evaluateAttributeExpressions(mff).getValue(), "/some/home/mydir");
assertEquals(context.getProperty(GetHDFSFileInfo.DIR_FILTER).evaluateAttributeExpressions(mff).getValue(), "^(dir.*)$");
assertEquals(context.getProperty(GetHDFSFileInfo.FILE_FILTER).evaluateAttributeExpressions(mff).getValue(), "^(.*)$");
assertEquals(context.getProperty(GetHDFSFileInfo.FILE_EXCLUDE_FILTER).evaluateAttributeExpressions(mff).getValue(), "^(none.*)$");
}
@Test
public void testRunWithConnections() throws InterruptedException {
setFileSystemBasicTree(proc.fileSystem);
Map<String, String> attributes = Maps.newHashMap();
attributes.put("input.dir", "/some/home/mydir");
runner.setIncomingConnection(true);
runner.setProperty(GetHDFSFileInfo.FULL_PATH, "${input.dir}");
runner.setProperty(GetHDFSFileInfo.RECURSE_SUBDIRS, "false");
runner.setProperty(GetHDFSFileInfo.IGNORE_DOTTED_DIRS, "true");
runner.setProperty(GetHDFSFileInfo.IGNORE_DOTTED_FILES, "true");
runner.setProperty(GetHDFSFileInfo.DESTINATION, GetHDFSFileInfo.DESTINATION_CONTENT);
runner.enqueue("foo", attributes);
runner.run();
runner.assertTransferCount(GetHDFSFileInfo.REL_ORIGINAL, 1);
final MockFlowFile mff = runner.getFlowFilesForRelationship(GetHDFSFileInfo.REL_ORIGINAL).get(0);
ProcessContext context = runner.getProcessContext();
assertEquals(context.getProperty(GetHDFSFileInfo.FULL_PATH).evaluateAttributeExpressions(mff).getValue(), "/some/home/mydir");
}
@Test
public void testRunWithIOException() throws InterruptedException {
setFileSystemBasicTree(proc.fileSystem);
proc.fileSystem.addFileStatus(proc.fileSystem.newDir("/some/home/mydir"), proc.fileSystem.newFile("/some/home/mydir/exception_java.io.InterruptedIOException"));
runner.setIncomingConnection(false);
runner.setProperty(GetHDFSFileInfo.FULL_PATH, "/some/home/mydir/exception_java.io.InterruptedIOException");
runner.setProperty(GetHDFSFileInfo.RECURSE_SUBDIRS, "false");
runner.setProperty(GetHDFSFileInfo.IGNORE_DOTTED_DIRS, "true");
runner.setProperty(GetHDFSFileInfo.IGNORE_DOTTED_FILES, "true");
runner.setProperty(GetHDFSFileInfo.DESTINATION, GetHDFSFileInfo.DESTINATION_CONTENT);
runner.run();
runner.assertTransferCount(GetHDFSFileInfo.REL_ORIGINAL, 0);
runner.assertTransferCount(GetHDFSFileInfo.REL_SUCCESS, 0);
runner.assertTransferCount(GetHDFSFileInfo.REL_FAILURE, 1);
runner.assertTransferCount(GetHDFSFileInfo.REL_NOT_FOUND, 0);
final MockFlowFile mff = runner.getFlowFilesForRelationship(GetHDFSFileInfo.REL_FAILURE).get(0);
mff.assertAttributeEquals("hdfs.status", "Failed due to: java.io.InterruptedIOException");
}
@Test
public void testRunWithPermissionsExceptionAttributes() throws InterruptedException {
setFileSystemBasicTree(proc.fileSystem);
proc.fileSystem.addFileStatus(proc.fileSystem.newDir("/some/home/mydir/dir1"), proc.fileSystem.newDir("/some/home/mydir/dir1/list_exception_java.io.InterruptedIOException"));
runner.setIncomingConnection(false);
runner.setProperty(GetHDFSFileInfo.FULL_PATH, "/some/home/mydir");
runner.setProperty(GetHDFSFileInfo.RECURSE_SUBDIRS, "true");
runner.setProperty(GetHDFSFileInfo.IGNORE_DOTTED_DIRS, "true");
runner.setProperty(GetHDFSFileInfo.IGNORE_DOTTED_FILES, "true");
runner.setProperty(GetHDFSFileInfo.DESTINATION, GetHDFSFileInfo.DESTINATION_ATTRIBUTES);
runner.setProperty(GetHDFSFileInfo.GROUPING, GetHDFSFileInfo.GROUP_PARENT_DIR);
runner.run();
runner.assertTransferCount(GetHDFSFileInfo.REL_ORIGINAL, 0);
runner.assertTransferCount(GetHDFSFileInfo.REL_SUCCESS, 6);
runner.assertTransferCount(GetHDFSFileInfo.REL_FAILURE, 0);
runner.assertTransferCount(GetHDFSFileInfo.REL_NOT_FOUND, 0);
}
@Test
public void testRunWithPermissionsExceptionContent() throws Exception {
setFileSystemBasicTree(proc.fileSystem);
proc.fileSystem.addFileStatus(proc.fileSystem.newDir("/some/home/mydir/dir1"), proc.fileSystem.newDir("/some/home/mydir/dir1/list_exception_java.io.InterruptedIOException"));
runner.setIncomingConnection(false);
runner.setProperty(GetHDFSFileInfo.FULL_PATH, "/some/home/mydir");
runner.setProperty(GetHDFSFileInfo.RECURSE_SUBDIRS, "true");
runner.setProperty(GetHDFSFileInfo.IGNORE_DOTTED_DIRS, "true");
runner.setProperty(GetHDFSFileInfo.IGNORE_DOTTED_FILES, "true");
runner.setProperty(GetHDFSFileInfo.DESTINATION, GetHDFSFileInfo.DESTINATION_CONTENT);
runner.setProperty(GetHDFSFileInfo.GROUPING, GetHDFSFileInfo.GROUP_ALL);
runner.run();
runner.assertTransferCount(GetHDFSFileInfo.REL_ORIGINAL, 0);
runner.assertTransferCount(GetHDFSFileInfo.REL_SUCCESS, 1);
runner.assertTransferCount(GetHDFSFileInfo.REL_FAILURE, 0);
runner.assertTransferCount(GetHDFSFileInfo.REL_NOT_FOUND, 0);
final MockFlowFile mff = runner.getFlowFilesForRelationship(GetHDFSFileInfo.REL_SUCCESS).get(0);
mff.assertContentEquals(Paths.get("src/test/resources/TestGetHDFSFileInfo/testRunWithPermissionsExceptionContent.json"));
}
@Test
public void testObjectNotFound() throws InterruptedException {
setFileSystemBasicTree(proc.fileSystem);
runner.setIncomingConnection(false);
runner.setProperty(GetHDFSFileInfo.FULL_PATH, "/some/home/mydir/ObjectThatDoesNotExist");
runner.setProperty(GetHDFSFileInfo.RECURSE_SUBDIRS, "true");
runner.setProperty(GetHDFSFileInfo.IGNORE_DOTTED_DIRS, "true");
runner.setProperty(GetHDFSFileInfo.IGNORE_DOTTED_FILES, "true");
runner.setProperty(GetHDFSFileInfo.DESTINATION, GetHDFSFileInfo.DESTINATION_CONTENT);
runner.run();
runner.assertTransferCount(GetHDFSFileInfo.REL_ORIGINAL, 0);
runner.assertTransferCount(GetHDFSFileInfo.REL_SUCCESS, 0);
runner.assertTransferCount(GetHDFSFileInfo.REL_FAILURE, 0);
runner.assertTransferCount(GetHDFSFileInfo.REL_NOT_FOUND, 1);
}
@Test
public void testRecursive() throws InterruptedException {
setFileSystemBasicTree(proc.fileSystem);
runner.setIncomingConnection(false);
runner.setProperty(GetHDFSFileInfo.FULL_PATH, "/some/home/mydir");
runner.setProperty(GetHDFSFileInfo.RECURSE_SUBDIRS, "true");
runner.setProperty(GetHDFSFileInfo.IGNORE_DOTTED_DIRS, "true");
runner.setProperty(GetHDFSFileInfo.IGNORE_DOTTED_FILES, "true");
runner.setProperty(GetHDFSFileInfo.DESTINATION, GetHDFSFileInfo.DESTINATION_CONTENT);
runner.run();
runner.assertTransferCount(GetHDFSFileInfo.REL_ORIGINAL, 0);
runner.assertTransferCount(GetHDFSFileInfo.REL_SUCCESS, 1);
runner.assertTransferCount(GetHDFSFileInfo.REL_FAILURE, 0);
runner.assertTransferCount(GetHDFSFileInfo.REL_NOT_FOUND, 0);
}
@Test
public void testRecursiveGroupAllToAttributes() throws Exception {
setFileSystemBasicTree(proc.fileSystem);
runner.setIncomingConnection(false);
runner.setProperty(GetHDFSFileInfo.FULL_PATH, "/some/home/mydir");
runner.setProperty(GetHDFSFileInfo.RECURSE_SUBDIRS, "true");
runner.setProperty(GetHDFSFileInfo.IGNORE_DOTTED_DIRS, "true");
runner.setProperty(GetHDFSFileInfo.IGNORE_DOTTED_FILES, "true");
runner.setProperty(GetHDFSFileInfo.DESTINATION, GetHDFSFileInfo.DESTINATION_ATTRIBUTES);
runner.setProperty(GetHDFSFileInfo.GROUPING, GetHDFSFileInfo.GROUP_ALL);
runner.run();
runner.assertTransferCount(GetHDFSFileInfo.REL_ORIGINAL, 0);
runner.assertTransferCount(GetHDFSFileInfo.REL_SUCCESS, 1);
runner.assertTransferCount(GetHDFSFileInfo.REL_FAILURE, 0);
runner.assertTransferCount(GetHDFSFileInfo.REL_NOT_FOUND, 0);
final MockFlowFile mff = runner.getFlowFilesForRelationship(GetHDFSFileInfo.REL_SUCCESS).get(0);
mff.assertAttributeEquals("hdfs.objectName", "mydir");
mff.assertAttributeEquals("hdfs.path", "/some/home");
mff.assertAttributeEquals("hdfs.type", "directory");
mff.assertAttributeEquals("hdfs.owner", "owner");
mff.assertAttributeEquals("hdfs.group", "group");
mff.assertAttributeEquals("hdfs.lastModified", ""+1523456000000L);
mff.assertAttributeEquals("hdfs.length", ""+500);
mff.assertAttributeEquals("hdfs.count.files", ""+5);
mff.assertAttributeEquals("hdfs.count.dirs", ""+10);
mff.assertAttributeEquals("hdfs.replication", ""+3);
mff.assertAttributeEquals("hdfs.permissions", "rwxr-xr-x");
mff.assertAttributeNotExists("hdfs.status");
final String expected = new String(Files.readAllBytes(Paths.get("src/test/resources/TestGetHDFSFileInfo/testRecursiveGroupAllToAttributes.json")));
mff.assertAttributeEquals("hdfs.full.tree", expected);
}
@Test
public void testRecursiveGroupNoneToAttributes() throws InterruptedException {
setFileSystemBasicTree(proc.fileSystem);
runner.setIncomingConnection(false);
runner.setProperty(GetHDFSFileInfo.FULL_PATH, "/some/home/mydir");
runner.setProperty(GetHDFSFileInfo.RECURSE_SUBDIRS, "true");
runner.setProperty(GetHDFSFileInfo.IGNORE_DOTTED_DIRS, "true");
runner.setProperty(GetHDFSFileInfo.IGNORE_DOTTED_FILES, "true");
runner.setProperty(GetHDFSFileInfo.DESTINATION, GetHDFSFileInfo.DESTINATION_ATTRIBUTES);
runner.setProperty(GetHDFSFileInfo.GROUPING, GetHDFSFileInfo.GROUP_NONE);
runner.run();
runner.assertTransferCount(GetHDFSFileInfo.REL_ORIGINAL, 0);
runner.assertTransferCount(GetHDFSFileInfo.REL_SUCCESS, 7);
runner.assertTransferCount(GetHDFSFileInfo.REL_FAILURE, 0);
runner.assertTransferCount(GetHDFSFileInfo.REL_NOT_FOUND, 0);
int matchCount = 0;
for (final MockFlowFile mff : runner.getFlowFilesForRelationship(GetHDFSFileInfo.REL_SUCCESS)) {
if (mff.getAttribute("hdfs.objectName").equals("mydir")) {
matchCount++;
mff.assertAttributeEquals("hdfs.path", "/some/home");
mff.assertAttributeEquals("hdfs.type", "directory");
mff.assertAttributeEquals("hdfs.owner", "owner");
mff.assertAttributeEquals("hdfs.group", "group");
mff.assertAttributeEquals("hdfs.lastModified", ""+1523456000000L);
mff.assertAttributeEquals("hdfs.length", ""+500);
mff.assertAttributeEquals("hdfs.count.files", ""+5);
mff.assertAttributeEquals("hdfs.count.dirs", ""+10);
mff.assertAttributeEquals("hdfs.replication", ""+3);
mff.assertAttributeEquals("hdfs.permissions", "rwxr-xr-x");
mff.assertAttributeNotExists("hdfs.status");
}else if (mff.getAttribute("hdfs.objectName").equals("dir1")) {
matchCount++;
mff.assertAttributeEquals("hdfs.path", "/some/home/mydir");
mff.assertAttributeEquals("hdfs.type", "directory");
mff.assertAttributeEquals("hdfs.owner", "owner");
mff.assertAttributeEquals("hdfs.group", "group");
mff.assertAttributeEquals("hdfs.lastModified", ""+1523456000000L);
mff.assertAttributeEquals("hdfs.length", ""+200);
mff.assertAttributeEquals("hdfs.count.files", ""+2);
mff.assertAttributeEquals("hdfs.count.dirs", ""+3);
mff.assertAttributeEquals("hdfs.replication", ""+3);
mff.assertAttributeEquals("hdfs.permissions", "rwxr-xr-x");
mff.assertAttributeNotExists("hdfs.status");
}else if (mff.getAttribute("hdfs.objectName").equals("dir2")) {
matchCount++;
mff.assertAttributeEquals("hdfs.path", "/some/home/mydir");
mff.assertAttributeEquals("hdfs.type", "directory");
mff.assertAttributeEquals("hdfs.owner", "owner");
mff.assertAttributeEquals("hdfs.group", "group");
mff.assertAttributeEquals("hdfs.lastModified", ""+1523456000000L);
mff.assertAttributeEquals("hdfs.length", ""+200);
mff.assertAttributeEquals("hdfs.count.files", ""+2);
mff.assertAttributeEquals("hdfs.count.dirs", ""+3);
mff.assertAttributeEquals("hdfs.replication", ""+3);
mff.assertAttributeEquals("hdfs.permissions", "rwxr-xr-x");
mff.assertAttributeNotExists("hdfs.status");
}else if (mff.getAttribute("hdfs.objectName").equals("regDir")) {
matchCount++;
mff.assertAttributeEquals("hdfs.path", "/some/home/mydir/dir1");
mff.assertAttributeEquals("hdfs.type", "directory");
mff.assertAttributeEquals("hdfs.owner", "owner");
mff.assertAttributeEquals("hdfs.group", "group");
mff.assertAttributeEquals("hdfs.lastModified", ""+1523456000000L);
mff.assertAttributeEquals("hdfs.length", ""+0);
mff.assertAttributeEquals("hdfs.count.files", ""+0);
mff.assertAttributeEquals("hdfs.count.dirs", ""+1);
mff.assertAttributeEquals("hdfs.replication", ""+3);
mff.assertAttributeEquals("hdfs.permissions", "rwxr-xr-x");
mff.assertAttributeNotExists("hdfs.status");
}else if (mff.getAttribute("hdfs.objectName").equals("regDir2")) {
matchCount++;
mff.assertAttributeEquals("hdfs.path", "/some/home/mydir/dir2");
mff.assertAttributeEquals("hdfs.type", "directory");
mff.assertAttributeEquals("hdfs.owner", "owner");
mff.assertAttributeEquals("hdfs.group", "group");
mff.assertAttributeEquals("hdfs.lastModified", ""+1523456000000L);
mff.assertAttributeEquals("hdfs.length", ""+0);
mff.assertAttributeEquals("hdfs.count.files", ""+0);
mff.assertAttributeEquals("hdfs.count.dirs", ""+1);
mff.assertAttributeEquals("hdfs.replication", ""+3);
mff.assertAttributeEquals("hdfs.permissions", "rwxr-xr-x");
mff.assertAttributeNotExists("hdfs.status");
}else if (mff.getAttribute("hdfs.objectName").equals("regFile")) {
matchCount++;
mff.assertAttributeEquals("hdfs.path", "/some/home/mydir/dir1");
mff.assertAttributeEquals("hdfs.type", "file");
mff.assertAttributeEquals("hdfs.owner", "owner");
mff.assertAttributeEquals("hdfs.group", "group");
mff.assertAttributeEquals("hdfs.lastModified", ""+1523456000000L);
mff.assertAttributeEquals("hdfs.length", ""+100);
mff.assertAttributeNotExists("hdfs.count.files");
mff.assertAttributeNotExists("hdfs.count.dirs");
mff.assertAttributeEquals("hdfs.replication", ""+3);
mff.assertAttributeEquals("hdfs.permissions", "rw-r--r--");
mff.assertAttributeNotExists("hdfs.status");
}else if (mff.getAttribute("hdfs.objectName").equals("regFile2")) {
matchCount++;
mff.assertAttributeEquals("hdfs.path", "/some/home/mydir/dir2");
mff.assertAttributeEquals("hdfs.type", "file");
mff.assertAttributeEquals("hdfs.owner", "owner");
mff.assertAttributeEquals("hdfs.group", "group");
mff.assertAttributeEquals("hdfs.lastModified", ""+1523456000000L);
mff.assertAttributeEquals("hdfs.length", ""+100);
mff.assertAttributeNotExists("hdfs.count.files");
mff.assertAttributeNotExists("hdfs.count.dirs");
mff.assertAttributeEquals("hdfs.replication", ""+3);
mff.assertAttributeEquals("hdfs.permissions", "rw-r--r--");
mff.assertAttributeNotExists("hdfs.status");
}else {
runner.assertNotValid();
}
}
Assert.assertEquals(matchCount, 7);
}
@Test
public void testRecursiveGroupDirToAttributes() throws Exception {
setFileSystemBasicTree(proc.fileSystem);
runner.setIncomingConnection(false);
runner.setProperty(GetHDFSFileInfo.FULL_PATH, "/some/home/mydir");
runner.setProperty(GetHDFSFileInfo.RECURSE_SUBDIRS, "true");
runner.setProperty(GetHDFSFileInfo.IGNORE_DOTTED_DIRS, "true");
runner.setProperty(GetHDFSFileInfo.IGNORE_DOTTED_FILES, "true");
runner.setProperty(GetHDFSFileInfo.DESTINATION, GetHDFSFileInfo.DESTINATION_ATTRIBUTES);
runner.setProperty(GetHDFSFileInfo.GROUPING, GetHDFSFileInfo.GROUP_PARENT_DIR);
runner.run();
runner.assertTransferCount(GetHDFSFileInfo.REL_ORIGINAL, 0);
runner.assertTransferCount(GetHDFSFileInfo.REL_SUCCESS, 5);
runner.assertTransferCount(GetHDFSFileInfo.REL_FAILURE, 0);
runner.assertTransferCount(GetHDFSFileInfo.REL_NOT_FOUND, 0);
int matchCount = 0;
for (final MockFlowFile mff : runner.getFlowFilesForRelationship(GetHDFSFileInfo.REL_SUCCESS)) {
if (mff.getAttribute("hdfs.objectName").equals("mydir")) {
matchCount++;
mff.assertAttributeEquals("hdfs.path", "/some/home");
mff.assertAttributeEquals("hdfs.type", "directory");
mff.assertAttributeEquals("hdfs.owner", "owner");
mff.assertAttributeEquals("hdfs.group", "group");
mff.assertAttributeEquals("hdfs.lastModified", ""+1523456000000L);
mff.assertAttributeEquals("hdfs.length", ""+500);
mff.assertAttributeEquals("hdfs.count.files", ""+5);
mff.assertAttributeEquals("hdfs.count.dirs", ""+10);
mff.assertAttributeEquals("hdfs.replication", ""+3);
mff.assertAttributeEquals("hdfs.permissions", "rwxr-xr-x");
mff.assertAttributeNotExists("hdfs.status");
final String expected = new String(Files.readAllBytes(Paths.get("src/test/resources/TestGetHDFSFileInfo/testRecursiveGroupDirToAttributes-mydir.json")));
mff.assertAttributeEquals("hdfs.full.tree", expected);
}else if (mff.getAttribute("hdfs.objectName").equals("dir1")) {
matchCount++;
mff.assertAttributeEquals("hdfs.path", "/some/home/mydir");
mff.assertAttributeEquals("hdfs.type", "directory");
mff.assertAttributeEquals("hdfs.owner", "owner");
mff.assertAttributeEquals("hdfs.group", "group");
mff.assertAttributeEquals("hdfs.lastModified", ""+1523456000000L);
mff.assertAttributeEquals("hdfs.length", ""+200);
mff.assertAttributeEquals("hdfs.count.files", ""+2);
mff.assertAttributeEquals("hdfs.count.dirs", ""+3);
mff.assertAttributeEquals("hdfs.replication", ""+3);
mff.assertAttributeEquals("hdfs.permissions", "rwxr-xr-x");
mff.assertAttributeNotExists("hdfs.status");
final String expected = new String(Files.readAllBytes(Paths.get("src/test/resources/TestGetHDFSFileInfo/testRecursiveGroupDirToAttributes-dir1.json")));
mff.assertAttributeEquals("hdfs.full.tree", expected);
}else if (mff.getAttribute("hdfs.objectName").equals("dir2")) {
matchCount++;
mff.assertAttributeEquals("hdfs.path", "/some/home/mydir");
mff.assertAttributeEquals("hdfs.type", "directory");
mff.assertAttributeEquals("hdfs.owner", "owner");
mff.assertAttributeEquals("hdfs.group", "group");
mff.assertAttributeEquals("hdfs.lastModified", ""+1523456000000L);
mff.assertAttributeEquals("hdfs.length", ""+200);
mff.assertAttributeEquals("hdfs.count.files", ""+2);
mff.assertAttributeEquals("hdfs.count.dirs", ""+3);
mff.assertAttributeEquals("hdfs.replication", ""+3);
mff.assertAttributeEquals("hdfs.permissions", "rwxr-xr-x");
mff.assertAttributeNotExists("hdfs.status");
final String expected = new String(Files.readAllBytes(Paths.get("src/test/resources/TestGetHDFSFileInfo/testRecursiveGroupDirToAttributes-dir2.json")));
mff.assertAttributeEquals("hdfs.full.tree", expected);
}else if (mff.getAttribute("hdfs.objectName").equals("regDir")) {
matchCount++;
mff.assertAttributeEquals("hdfs.path", "/some/home/mydir/dir1");
mff.assertAttributeEquals("hdfs.type", "directory");
mff.assertAttributeEquals("hdfs.owner", "owner");
mff.assertAttributeEquals("hdfs.group", "group");
mff.assertAttributeEquals("hdfs.lastModified", ""+1523456000000L);
mff.assertAttributeEquals("hdfs.length", ""+0);
mff.assertAttributeEquals("hdfs.count.files", ""+0);
mff.assertAttributeEquals("hdfs.count.dirs", ""+1);
mff.assertAttributeEquals("hdfs.replication", ""+3);
mff.assertAttributeEquals("hdfs.permissions", "rwxr-xr-x");
mff.assertAttributeNotExists("hdfs.status");
final String expected = new String(Files.readAllBytes(Paths.get("src/test/resources/TestGetHDFSFileInfo/testRecursiveGroupDirToAttributes-regDir.json")));
mff.assertAttributeEquals("hdfs.full.tree", expected);
}else if (mff.getAttribute("hdfs.objectName").equals("regDir2")) {
matchCount++;
mff.assertAttributeEquals("hdfs.path", "/some/home/mydir/dir2");
mff.assertAttributeEquals("hdfs.type", "directory");
mff.assertAttributeEquals("hdfs.owner", "owner");
mff.assertAttributeEquals("hdfs.group", "group");
mff.assertAttributeEquals("hdfs.lastModified", ""+1523456000000L);
mff.assertAttributeEquals("hdfs.length", ""+0);
mff.assertAttributeEquals("hdfs.count.files", ""+0);
mff.assertAttributeEquals("hdfs.count.dirs", ""+1);
mff.assertAttributeEquals("hdfs.replication", ""+3);
mff.assertAttributeEquals("hdfs.permissions", "rwxr-xr-x");
mff.assertAttributeNotExists("hdfs.status");
final String expected = new String(Files.readAllBytes(Paths.get("src/test/resources/TestGetHDFSFileInfo/testRecursiveGroupDirToAttributes-regDir2.json")));
mff.assertAttributeEquals("hdfs.full.tree", expected);
}else {
runner.assertNotValid();
}
}
Assert.assertEquals(matchCount, 5);
}
/*
* For all basic tests, this provides a structure of files in dirs:
* Total number of dirs: 9 (1 root, 4 dotted)
* Total number of files: 4 (2 dotted)
*/
protected void setFileSystemBasicTree(final MockFileSystem fs) {
fs.addFileStatus(fs.newDir("/some/home/mydir"), fs.newDir("/some/home/mydir/dir1"));
fs.addFileStatus(fs.newDir("/some/home/mydir"), fs.newDir("/some/home/mydir/dir2"));
fs.addFileStatus(fs.newDir("/some/home/mydir"), fs.newDir("/some/home/mydir/.dir3"));
fs.addFileStatus(fs.newDir("/some/home/mydir"), fs.newDir("/some/home/mydir/.dir4"));
fs.addFileStatus(fs.newDir("/some/home/mydir/dir1"), fs.newFile("/some/home/mydir/dir1/.dotFile"));
fs.addFileStatus(fs.newDir("/some/home/mydir/dir1"), fs.newDir("/some/home/mydir/dir1/.dotDir"));
fs.addFileStatus(fs.newDir("/some/home/mydir/dir1"), fs.newFile("/some/home/mydir/dir1/regFile"));
fs.addFileStatus(fs.newDir("/some/home/mydir/dir1"), fs.newDir("/some/home/mydir/dir1/regDir"));
fs.addFileStatus(fs.newDir("/some/home/mydir/dir2"), fs.newFile("/some/home/mydir/dir2/.dotFile2"));
fs.addFileStatus(fs.newDir("/some/home/mydir/dir2"), fs.newDir("/some/home/mydir/dir2/.dotDir2"));
fs.addFileStatus(fs.newDir("/some/home/mydir/dir2"), fs.newFile("/some/home/mydir/dir2/regFile2"));
fs.addFileStatus(fs.newDir("/some/home/mydir/dir2"), fs.newDir("/some/home/mydir/dir2/regDir2"));
fs.addFileStatus(fs.newDir("/some/home/mydir/.dir3"), fs.newFile("/some/home/mydir/.dir3/regFile3"));
fs.addFileStatus(fs.newDir("/some/home/mydir/.dir3"), fs.newDir("/some/home/mydir/.dir3/regDir3"));
}
static FsPermission perms(short p) {
return new FsPermission(p);
}
private class GetHDFSFileInfoWithMockedFileSystem extends GetHDFSFileInfo {
private final MockFileSystem fileSystem = new MockFileSystem();
private final KerberosProperties testKerberosProps;
public GetHDFSFileInfoWithMockedFileSystem(KerberosProperties kerberosProperties) {
this.testKerberosProps = kerberosProperties;
}
@Override
protected KerberosProperties getKerberosProperties(File kerberosConfigFile) {
return testKerberosProps;
}
@Override
protected FileSystem getFileSystem() {
return fileSystem;
}
@Override
protected FileSystem getFileSystem(final Configuration config) throws IOException {
return fileSystem;
}
}
private class MockFileSystem extends FileSystem {
private final Map<Path, Set<FileStatus>> fileStatuses = new HashMap<>();
private final Map<Path, FileStatus> pathToStatus = new HashMap<>();
public void addFileStatus(final FileStatus parent, final FileStatus child) {
Set<FileStatus> children = fileStatuses.get(parent.getPath());
if (children == null) {
children = new HashSet<>();
fileStatuses.put(parent.getPath(), children);
}
if (child != null) {
children.add(child);
if (child.isDirectory() && !fileStatuses.containsKey(child.getPath())) {
fileStatuses.put(child.getPath(), new HashSet<FileStatus>());
}
}
pathToStatus.put(parent.getPath(), parent);
pathToStatus.put(child.getPath(), child);
}
@Override
public long getDefaultBlockSize() {
return 1024L;
}
@Override
public short getDefaultReplication() {
return 1;
}
@Override
public URI getUri() {
return null;
}
@Override
public FSDataInputStream open(final Path f, final int bufferSize) throws IOException {
return null;
}
@Override
public FSDataOutputStream create(final Path f, final FsPermission permission, final boolean overwrite, final int bufferSize, final short replication,
final long blockSize, final Progressable progress) throws IOException {
return null;
}
@Override
public FSDataOutputStream append(final Path f, final int bufferSize, final Progressable progress) throws IOException {
return null;
}
@Override
public boolean rename(final Path src, final Path dst) throws IOException {
return false;
}
@Override
public boolean delete(final Path f, final boolean recursive) throws IOException {
return false;
}
@Override
public FileStatus[] listStatus(final Path f) throws FileNotFoundException, IOException {
if (!fileStatuses.containsKey(f)) {
throw new FileNotFoundException();
}
if (f.getName().startsWith("list_exception_")) {
String clzName = f.getName().substring("list_exception_".length(), f.getName().length());
IOException exception = null;
try {
exception = (IOException)Class.forName(clzName).newInstance();
} catch (Throwable t) {
throw new RuntimeException(t);
}
throw exception;
}
final Set<FileStatus> statuses = fileStatuses.get(f);
if (statuses == null) {
return new FileStatus[0];
}
for (FileStatus s : statuses) {
getFileStatus(s.getPath()); //support exception handling only.
}
return statuses.toArray(new FileStatus[statuses.size()]);
}
@Override
public void setWorkingDirectory(final Path new_dir) {
}
@Override
public Path getWorkingDirectory() {
return new Path(new File(".").getAbsolutePath());
}
@Override
public boolean mkdirs(final Path f, final FsPermission permission) throws IOException {
return false;
}
@Override
public FileStatus getFileStatus(final Path f) throws IOException {
if (f!=null && f.getName().startsWith("exception_")) {
String clzName = f.getName().substring("exception_".length(), f.getName().length());
IOException exception = null;
try {
exception = (IOException)Class.forName(clzName).newInstance();
} catch (Throwable t) {
throw new RuntimeException(t);
}
throw exception;
}
final FileStatus fileStatus = pathToStatus.get(f);
if (fileStatus == null) throw new FileNotFoundException();
return fileStatus;
}
public FileStatus newFile(String p) {
return new FileStatus(100L, false, 3, 128*1024*1024, 1523456000000L, 1523457000000L, perms((short)0644), "owner", "group", new Path(p));
}
public FileStatus newDir(String p) {
return new FileStatus(1L, true, 3, 128*1024*1024, 1523456000000L, 1523457000000L, perms((short)0755), "owner", "group", new Path(p));
}
}
}

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@ -0,0 +1 @@
{"objectName":"mydir","path":"/some/home","type":"directory","owner":"owner","group":"group","lastModified":"1523456000000","length":"500","replication":"3","countFiles":"5","countDirs":"10","permissions":"rwxr-xr-x","content":[{"objectName":"dir1","path":"/some/home/mydir","type":"directory","owner":"owner","group":"group","lastModified":"1523456000000","length":"200","replication":"3","countFiles":"2","countDirs":"3","permissions":"rwxr-xr-x","content":[{"objectName":"regFile","path":"/some/home/mydir/dir1","type":"file","owner":"owner","group":"group","lastModified":"1523456000000","length":"100","replication":"3","permissions":"rw-r--r--"},{"objectName":"regDir","path":"/some/home/mydir/dir1","type":"directory","owner":"owner","group":"group","lastModified":"1523456000000","length":"0","replication":"3","countFiles":"0","countDirs":"1","permissions":"rwxr-xr-x"}]},{"objectName":"dir2","path":"/some/home/mydir","type":"directory","owner":"owner","group":"group","lastModified":"1523456000000","length":"200","replication":"3","countFiles":"2","countDirs":"3","permissions":"rwxr-xr-x","content":[{"objectName":"regDir2","path":"/some/home/mydir/dir2","type":"directory","owner":"owner","group":"group","lastModified":"1523456000000","length":"0","replication":"3","countFiles":"0","countDirs":"1","permissions":"rwxr-xr-x"},{"objectName":"regFile2","path":"/some/home/mydir/dir2","type":"file","owner":"owner","group":"group","lastModified":"1523456000000","length":"100","replication":"3","permissions":"rw-r--r--"}]}]}

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{"objectName":"dir1","path":"/some/home/mydir","type":"directory","owner":"owner","group":"group","lastModified":"1523456000000","length":"200","replication":"3","countFiles":"2","countDirs":"3","permissions":"rwxr-xr-x","content":[{"objectName":"regFile","path":"/some/home/mydir/dir1","type":"file","owner":"owner","group":"group","lastModified":"1523456000000","length":"100","replication":"3","permissions":"rw-r--r--"},{"objectName":"regDir","path":"/some/home/mydir/dir1","type":"directory","owner":"owner","group":"group","lastModified":"1523456000000","length":"0","replication":"3","countFiles":"0","countDirs":"1","permissions":"rwxr-xr-x"}]}

View File

@ -0,0 +1 @@
{"objectName":"dir2","path":"/some/home/mydir","type":"directory","owner":"owner","group":"group","lastModified":"1523456000000","length":"200","replication":"3","countFiles":"2","countDirs":"3","permissions":"rwxr-xr-x","content":[{"objectName":"regDir2","path":"/some/home/mydir/dir2","type":"directory","owner":"owner","group":"group","lastModified":"1523456000000","length":"0","replication":"3","countFiles":"0","countDirs":"1","permissions":"rwxr-xr-x"},{"objectName":"regFile2","path":"/some/home/mydir/dir2","type":"file","owner":"owner","group":"group","lastModified":"1523456000000","length":"100","replication":"3","permissions":"rw-r--r--"}]}

View File

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{"objectName":"mydir","path":"/some/home","type":"directory","owner":"owner","group":"group","lastModified":"1523456000000","length":"500","replication":"3","countFiles":"5","countDirs":"10","permissions":"rwxr-xr-x","content":[{"objectName":"dir1","path":"/some/home/mydir","type":"directory","owner":"owner","group":"group","lastModified":"1523456000000","length":"200","replication":"3","countFiles":"2","countDirs":"3","permissions":"rwxr-xr-x"},{"objectName":"dir2","path":"/some/home/mydir","type":"directory","owner":"owner","group":"group","lastModified":"1523456000000","length":"200","replication":"3","countFiles":"2","countDirs":"3","permissions":"rwxr-xr-x"}]}

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{"objectName":"regDir","path":"/some/home/mydir/dir1","type":"directory","owner":"owner","group":"group","lastModified":"1523456000000","length":"0","replication":"3","countFiles":"0","countDirs":"1","permissions":"rwxr-xr-x"}

View File

@ -0,0 +1 @@
{"objectName":"regDir2","path":"/some/home/mydir/dir2","type":"directory","owner":"owner","group":"group","lastModified":"1523456000000","length":"0","replication":"3","countFiles":"0","countDirs":"1","permissions":"rwxr-xr-x"}

View File

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{"objectName":"mydir","path":"/some/home","type":"directory","owner":"owner","group":"group","lastModified":"1523456000000","length":"500","replication":"3","countFiles":"5","countDirs":"11","permissions":"rwxr-xr-x","content":[{"objectName":"dir1","path":"/some/home/mydir","type":"directory","owner":"owner","group":"group","lastModified":"1523456000000","length":"200","replication":"3","countFiles":"2","countDirs":"4","permissions":"rwxr-xr-x","content":[{"objectName":"list_exception_java.io.InterruptedIOException","path":"/some/home/mydir/dir1","type":"directory","owner":"owner","group":"group","lastModified":"1523456000000","length":"0","replication":"3","countFiles":"0","countDirs":"1","permissions":"rwxr-xr-x","status":"Couldn't list directory: java.io.InterruptedIOException"},{"objectName":"regFile","path":"/some/home/mydir/dir1","type":"file","owner":"owner","group":"group","lastModified":"1523456000000","length":"100","replication":"3","permissions":"rw-r--r--"},{"objectName":"regDir","path":"/some/home/mydir/dir1","type":"directory","owner":"owner","group":"group","lastModified":"1523456000000","length":"0","replication":"3","countFiles":"0","countDirs":"1","permissions":"rwxr-xr-x"}]},{"objectName":"dir2","path":"/some/home/mydir","type":"directory","owner":"owner","group":"group","lastModified":"1523456000000","length":"200","replication":"3","countFiles":"2","countDirs":"3","permissions":"rwxr-xr-x","content":[{"objectName":"regDir2","path":"/some/home/mydir/dir2","type":"directory","owner":"owner","group":"group","lastModified":"1523456000000","length":"0","replication":"3","countFiles":"0","countDirs":"1","permissions":"rwxr-xr-x"},{"objectName":"regFile2","path":"/some/home/mydir/dir2","type":"file","owner":"owner","group":"group","lastModified":"1523456000000","length":"100","replication":"3","permissions":"rw-r--r--"}]}]}