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Implementing method in BMS service for equals block #152

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Implementing method in BMS service for equals block #152

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9fb1c21
Implementing method in BMS service for equals block
Lexsus May 17, 2018
3402e85
rename checkBlock to isExistOnVufs
Lexsus May 18, 2018
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72 changes: 72 additions & 0 deletions ...ain/java/com/stnetix/ariaddna/blockmanipulation/service/BlockManipulationServiceImpl.java
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Expand Up @@ -14,21 +14,82 @@
package com.stnetix.ariaddna.blockmanipulation.service;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.HashSet;
import java.util.List;
import java.util.Set;

import org.springframework.context.annotation.Scope;
import org.springframework.stereotype.Service;

import com.stnetix.ariaddna.blockmanipulation.exception.BlockDoesNotExistException;
import com.stnetix.ariaddna.blockmanipulation.exception.MetafileIsFolderException;
import com.stnetix.ariaddna.commonutils.dto.vufs.FileType;
import com.stnetix.ariaddna.vufs.bo.Block;
import com.stnetix.ariaddna.vufs.bo.Metafile;
import com.stnetix.ariaddna.vufs.bo.Metatable;



@Service
@Scope(value = "session")
public class BlockManipulationServiceImpl implements IBlockManipulationService {

private List<String> blockUuidList;
private HashMap<String, HashSet<String>> blockMap = new HashMap<>();

private Metafile GetMetafileByFileUuid(Metatable metatable, String fileUuid) {
Set<Metafile> metafileSet = metatable.getMetafileSet();
for (Metafile metafile : metafileSet) {
if (metafile.getFileUuid().equals(fileUuid)) {
return metafile;
}
}
return null;
}

private boolean containsBlock(Metafile metafile, Block block) {
for (String blockUuid : metafile.getBlockUuidList()) {
if (blockUuid.equals(block.getBlockUuid())) {
return true;
}
}
return false;
}

@Override
public boolean isExistOnVufs(Block block, Metatable metatable) {

HashSet<String> blockOfFile = null;
if (blockMap.containsKey(block.getFileUuid())) {
blockOfFile = blockMap.get(block.getFileUuid());
if (blockOfFile.contains(block.getBlockUuid())) {
return true;
}
Metafile metafile = GetMetafileByFileUuid(metatable, block.getFileUuid());
if (containsBlock(metafile, block)) {
blockOfFile.add(block.getBlockUuid());
return true;
} else {
return false;
}
} else {
Metafile metafile = GetMetafileByFileUuid(metatable, block.getFileUuid());
if (metafile != null) {
blockOfFile = new HashSet<>();
blockMap.put(block.getFileUuid(), blockOfFile);
if (containsBlock(metafile, block)) {
blockOfFile.add(block.getBlockUuid());
return true;
} else {
return false;
}

} else {
return false;
}
}
}

@Override
public String getNextBlockUuid(Metafile metafile)
Expand Down Expand Up @@ -78,6 +139,17 @@ public String getBlockUuidByNumber(Metafile metafile, int blockNumber)
return blockUuidList.get(blockNumber);
}

@Override public void removeBlockFromCache(Block block, Metatable metatable) {
HashSet<String> blocksOfFile = null;
if (blockMap.containsKey(block.getFileUuid())) {
blocksOfFile = blockMap.get(block.getFileUuid());
blocksOfFile.remove(block.getBlockUuid());
if (blocksOfFile.size() == 0) {
blockMap.remove(block.getFileUuid());
}
}
}

private StringBuilder getMetafileInfoForLog(Metafile metafile, String methodName) {
return new StringBuilder()
.append("Method ")
Expand Down
19 changes: 18 additions & 1 deletion ...c/main/java/com/stnetix/ariaddna/blockmanipulation/service/IBlockManipulationService.java
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Expand Up @@ -15,7 +15,9 @@

import com.stnetix.ariaddna.blockmanipulation.exception.BlockDoesNotExistException;
import com.stnetix.ariaddna.blockmanipulation.exception.MetafileIsFolderException;
import com.stnetix.ariaddna.vufs.bo.Block;
import com.stnetix.ariaddna.vufs.bo.Metafile;
import com.stnetix.ariaddna.vufs.bo.Metatable;

public interface IBlockManipulationService {

Expand All @@ -35,11 +37,26 @@ String getNextBlockUuid(Metafile metafile) throws MetafileIsFolderException,
* Method return Block uuid by number from Metafile. If metafile is folder, method
* throws {@link MetafileIsFolderException}.
* if Metafile doesn`t exist block with external number, throws {@link BlockDoesNotExistException}.
* @param metafile Metafil object.
* @param metafile Metafile object.
* @param blockNumber number of requested block.
* @return uuid of block with requsted number.
* @throws {@link BlockDoesNotExistException}, {@link MetafileIsFolderException}
* */
String getBlockUuidByNumber(Metafile metafile, int blockNumber)
throws MetafileIsFolderException, BlockDoesNotExistException;

/**
* Method checks the presence of a block in Metatable
* @param block Block object
* @param metatable Metatable object
* @return return true if Metatable contains block and otherwise return false
*/
boolean isExistOnVufs(Block block,Metatable metatable);

/**
* Methot remove block from cache
* @param block Block object
* @param metatable Metatable object
*/
void removeBlockFromCache(Block block,Metatable metatable);
}
52 changes: 52 additions & 0 deletions ...java/com/stnetix/ariaddna/blockmanipulation/service/BlockManipulationServiceImplTest.java
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Expand Up @@ -14,11 +14,18 @@
package com.stnetix.ariaddna.blockmanipulation.service;

import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertTrue;

import java.util.HashMap;
import java.util.Map;
import java.util.Random;
import java.util.UUID;

import com.stnetix.ariaddna.commonutils.datetime.DateTime;
import com.stnetix.ariaddna.commonutils.dto.vufs.MetatableType;
import com.stnetix.ariaddna.vufs.bo.Block;
import com.stnetix.ariaddna.vufs.bo.Metatable;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;
Expand Down Expand Up @@ -81,6 +88,51 @@ public void getNextBlockUuid() throws BlockDoesNotExistException, MetafileIsFold
blockManipulationService.getNextBlockUuid(metafile);
}

@Test
public void CheckBlock() {
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please change name of method to "isExistOnVufs"

int blockSize = 1024;
String version = "1";
byte[] data = new byte[blockSize];
DateTime date = new DateTime();

Map<String, String> properties = new HashMap<>();
properties.put("typeOnFs", FileType.FILE_BIN.toString());
metafile.setProperties(properties);

Random random = new Random();
random.nextBytes(data);
Block block1 = new Block(version, 0L, metafile.getFileUuid(), data,
date.getTimeInMillisec(),
(long) blockSize);
random.nextBytes(data);
Block block2 = new Block(version, 1L, metafile.getFileUuid(), data,
date.getTimeInMillisec(),
(long) blockSize);
random.nextBytes(data);
Block block3 = new Block(version, 1L, metafile.getFileUuid(), data,
date.getTimeInMillisec(),
(long) blockSize);
random.nextBytes(data);
Block block4 = new Block(version, 1L, metafile.getFileUuid(), data,
date.getTimeInMillisec(),
(long) blockSize);
metafile.addBlockUuid(block1.getBlockUuid());
metafile.addBlockUuid(block2.getBlockUuid());
metafile.addBlockUuid(block3.getBlockUuid());

Metatable metatable = new Metatable(MetatableType.MASTER, UUID.randomUUID().toString(),
UUID.randomUUID().toString());
metatable.addMetafile(metafile);
assertTrue(blockManipulationService.isExistOnVufs(block3, metatable));
assertFalse(blockManipulationService.isExistOnVufs(block4, metatable));
assertTrue(blockManipulationService.isExistOnVufs(block3, metatable));

//remove block
metafile.removeBlockUuid(block3.getBlockUuid());
blockManipulationService.removeBlockFromCache(block3, metatable);
assertFalse(blockManipulationService.isExistOnVufs(block3, metatable));
}

@Test(expected = MetafileIsFolderException.class)
public void getNextBlockUuidByFolder()
throws BlockDoesNotExistException, MetafileIsFolderException {
Expand Down