HDDS-123:ContainerSet class to manage ContainerMap. Contributed by Bharat Viswanadham
This commit is contained in:
Bharat Viswanadham
parent
f26d3466d7
commit
977c8cd166
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@ -56,6 +56,7 @@ public class ContainerData {
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private final AtomicLong writeBytes;
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private final AtomicLong writeBytes;
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private final AtomicLong readCount;
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private final AtomicLong readCount;
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private final AtomicLong writeCount;
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private final AtomicLong writeCount;
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private final AtomicLong bytesUsed;
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/**
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/**
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@ -73,6 +74,7 @@ public class ContainerData {
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this.readBytes = new AtomicLong(0L);
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this.readBytes = new AtomicLong(0L);
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this.writeCount = new AtomicLong(0L);
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this.writeCount = new AtomicLong(0L);
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this.writeBytes = new AtomicLong(0L);
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this.writeBytes = new AtomicLong(0L);
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this.bytesUsed = new AtomicLong(0L);
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}
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}
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/**
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/**
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@ -231,4 +233,40 @@ public class ContainerData {
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this.writeCount.incrementAndGet();
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this.writeCount.incrementAndGet();
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}
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}
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/**
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* Sets the number of bytes used by the container.
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* @param used
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*/
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public void setBytesUsed(long used) {
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this.bytesUsed.set(used);
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}
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/**
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* Get the number of bytes used by the container.
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* @return the number of bytes used by the container.
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*/
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public long getBytesUsed() {
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return bytesUsed.get();
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}
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/**
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* Increase the number of bytes used by the container.
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* @param used number of bytes used by the container.
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* @return the current number of bytes used by the container afert increase.
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*/
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public long incrBytesUsed(long used) {
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return this.bytesUsed.addAndGet(used);
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}
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/**
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* Decrease the number of bytes used by the container.
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* @param reclaimed the number of bytes reclaimed from the container.
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* @return the current number of bytes used by the container after decrease.
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*/
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public long decrBytesUsed(long reclaimed) {
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return this.bytesUsed.addAndGet(-1L * reclaimed);
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}
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}
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}
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@ -0,0 +1,239 @@
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/*
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* Licensed to the Apache Software Foundation (ASF) under one
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* or more contributor license agreements. See the NOTICE file
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* distributed with this work for additional information
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* regarding copyright ownership. The ASF licenses this file
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* to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance
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* with the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package org.apache.hadoop.ozone.container.common.impl;
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import com.google.common.annotations.VisibleForTesting;
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import com.google.common.base.Preconditions;
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import org.apache.hadoop.hdds.protocol.proto.HddsProtos;
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import org.apache.hadoop.hdds.protocol.proto
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.StorageContainerDatanodeProtocolProtos.ContainerInfo;
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import org.apache.hadoop.hdds.protocol.proto
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.StorageContainerDatanodeProtocolProtos.ContainerReportsProto;
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import org.apache.hadoop.hdds.scm.container.common.helpers
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.StorageContainerException;
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import org.apache.hadoop.ozone.container.common.interfaces.Container;
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import org.slf4j.Logger;
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import org.slf4j.LoggerFactory;
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import java.io.IOException;
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import java.util.Iterator;
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import java.util.List;
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import java.util.Map;
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import java.util.concurrent.ConcurrentNavigableMap;
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import java.util.concurrent.ConcurrentSkipListMap;
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import java.util.stream.Collectors;
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import static org.apache.hadoop.hdds.protocol.datanode.proto.ContainerProtos
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.Result.INVALID_CONTAINER_STATE;
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/**
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* Class that manages Containers created on the datanode.
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*/
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public class ContainerSet {
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private static final Logger LOG = LoggerFactory.getLogger(ContainerSet.class);
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private final ConcurrentSkipListMap<Long, Container> containerMap = new
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ConcurrentSkipListMap<>();
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/**
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* Add Container to container map.
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* @param container
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* @return If container is added to containerMap returns true, otherwise
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* false
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*/
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public boolean addContainer(Container container) throws
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StorageContainerException {
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Preconditions.checkNotNull(container, "container cannot be null");
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long containerId = container.getContainerData().getContainerId();
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if(containerMap.putIfAbsent(containerId, container) == null) {
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LOG.debug("Container with container Id {} is added to containerMap",
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containerId);
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return true;
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} else {
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LOG.debug("Container already exists with container Id {}", containerId);
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return false;
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}
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}
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/**
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* Returns the Container with specified containerId.
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* @param containerId
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* @return Container
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*/
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public Container getContainer(long containerId) {
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Preconditions.checkState(containerId >= 0,
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"Container Id cannot be negative.");
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return containerMap.get(containerId);
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}
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/**
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* Removes the Container matching with specified containerId.
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* @param containerId
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* @return If container is removed from containerMap returns true, otherwise
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* false
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*/
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public boolean removeContainer(long containerId) {
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Preconditions.checkState(containerId >= 0,
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"Container Id cannot be negative.");
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Container removed = containerMap.remove(containerId);
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if(removed == null) {
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LOG.debug("Container with containerId {} is not present in " +
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"containerMap", containerId);
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return false;
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} else {
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LOG.debug("Container with containerId {} is removed from containerMap",
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containerId);
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return true;
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}
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}
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/**
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* Return number of containers in container map.
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* @return container count
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*/
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@VisibleForTesting
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public int containerCount() {
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return containerMap.size();
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}
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/**
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* Return an container Iterator over {@link ContainerSet#containerMap}.
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* @return Iterator<Container>
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*/
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public Iterator<Container> getContainerIterator() {
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return containerMap.values().iterator();
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}
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/**
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* Return an containerMap iterator over {@link ContainerSet#containerMap}.
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* @return containerMap Iterator
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*/
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public Iterator<Map.Entry<Long, Container>> getContainerMapIterator() {
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return containerMap.entrySet().iterator();
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}
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/**
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* A simple interface for container Iterations.
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* <p/>
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* This call make no guarantees about consistency of the data between
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* different list calls. It just returns the best known data at that point of
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* time. It is possible that using this iteration you can miss certain
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* container from the listing.
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*
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* @param startContainerId - Return containers with Id >= startContainerId.
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* @param count - how many to return
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* @param data - Actual containerData
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* @throws StorageContainerException
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*/
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public void listContainer(long startContainerId, long count,
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List<ContainerData> data) throws
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StorageContainerException {
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Preconditions.checkNotNull(data,
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"Internal assertion: data cannot be null");
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Preconditions.checkState(startContainerId >= 0,
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"Start container Id cannot be negative");
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Preconditions.checkState(count > 0,
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"max number of containers returned " +
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"must be positive");
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LOG.debug("listContainer returns containerData starting from {} of count " +
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"{}", startContainerId, count);
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ConcurrentNavigableMap<Long, Container> map;
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if (startContainerId == 0) {
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map = containerMap.tailMap(containerMap.firstKey(), true);
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} else {
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map = containerMap.tailMap(startContainerId, true);
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}
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int currentCount = 0;
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for (Container entry : map.values()) {
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if (currentCount < count) {
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data.add(entry.getContainerData());
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currentCount++;
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} else {
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return;
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}
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}
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}
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/**
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* Get container report.
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*
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* @return The container report.
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* @throws IOException
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*/
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public ContainerReportsProto getContainerReport() throws IOException {
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LOG.debug("Starting container report iteration.");
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// No need for locking since containerMap is a ConcurrentSkipListMap
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// And we can never get the exact state since close might happen
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// after we iterate a point.
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List<Container> containers = containerMap.values().stream().collect(
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Collectors.toList());
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ContainerReportsProto.Builder crBuilder =
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ContainerReportsProto.newBuilder();
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for (Container container: containers) {
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long containerId = container.getContainerData().getContainerId();
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ContainerInfo.Builder ciBuilder = ContainerInfo.newBuilder();
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ContainerData containerData = container.getContainerData();
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ciBuilder.setContainerID(containerId)
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.setReadCount(containerData.getReadCount())
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.setWriteCount(containerData.getWriteCount())
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.setReadBytes(containerData.getReadBytes())
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.setWriteBytes(containerData.getWriteBytes())
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.setUsed(containerData.getBytesUsed())
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.setState(getState(containerData));
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crBuilder.addReports(ciBuilder.build());
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}
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return crBuilder.build();
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}
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/**
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* Returns LifeCycle State of the container.
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* @param containerData - ContainerData
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* @return LifeCycle State of the container
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* @throws StorageContainerException
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*/
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private HddsProtos.LifeCycleState getState(ContainerData containerData)
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throws StorageContainerException {
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HddsProtos.LifeCycleState state;
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switch (containerData.getState()) {
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case OPEN:
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state = HddsProtos.LifeCycleState.OPEN;
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break;
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case CLOSING:
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state = HddsProtos.LifeCycleState.CLOSING;
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break;
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case CLOSED:
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state = HddsProtos.LifeCycleState.CLOSED;
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break;
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default:
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throw new StorageContainerException("Invalid Container state found: " +
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containerData.getContainerId(), INVALID_CONTAINER_STATE);
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}
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return state;
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}
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}
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@ -19,6 +19,7 @@
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package org.apache.hadoop.ozone.container.common.impl;
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package org.apache.hadoop.ozone.container.common.impl;
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import com.google.common.base.Preconditions;
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import org.apache.hadoop.hdds.scm.container.common.helpers.StorageContainerException;
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import org.apache.hadoop.hdds.scm.container.common.helpers.StorageContainerException;
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@ -40,12 +41,15 @@ public class KeyValueContainer implements Container {
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private KeyValueContainerData containerData;
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private KeyValueContainerData containerData;
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public KeyValueContainer(KeyValueContainerData containerData) {
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public KeyValueContainer(KeyValueContainerData containerData) {
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Preconditions.checkNotNull(containerData, "KeyValueContainerData cannot " +
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"be null");
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this.containerData = containerData;
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this.containerData = containerData;
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}
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}
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@Override
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@Override
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public void create(ContainerData cData) throws StorageContainerException {
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public void create(ContainerData cData) throws StorageContainerException {
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}
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}
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@Override
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@Override
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@ -61,8 +65,8 @@ public class KeyValueContainer implements Container {
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}
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}
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@Override
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@Override
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public ContainerData getContainerData() throws StorageContainerException {
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public ContainerData getContainerData() {
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return null;
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return containerData;
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}
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}
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@Override
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@Override
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@ -0,0 +1,169 @@
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/**
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with this
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* work for additional information regarding copyright ownership. The ASF
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* licenses this file to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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* <p>
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* http://www.apache.org/licenses/LICENSE-2.0
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* <p>
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations under
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* the License.
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*/
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package org.apache.hadoop.ozone.container.common.impl;
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import org.apache.hadoop.hdds.protocol.datanode.proto.ContainerProtos;
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import org.apache.hadoop.hdds.protocol.proto
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.StorageContainerDatanodeProtocolProtos.ContainerReportsProto;
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import org.apache.hadoop.hdds.scm.container.common.helpers.StorageContainerException;
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import org.apache.hadoop.ozone.container.common.interfaces.Container;
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import org.junit.Test;
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import java.io.IOException;
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import java.util.ArrayList;
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import java.util.Iterator;
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import java.util.List;
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import java.util.Map;
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import static org.junit.Assert.assertEquals;
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import static org.junit.Assert.assertFalse;
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import static org.junit.Assert.assertNull;
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import static org.junit.Assert.assertTrue;
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/**
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* Class used to test ContainerSet operations.
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*/
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public class TestContainerSet {
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@Test
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public void testAddGetRemoveContainer() throws StorageContainerException {
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ContainerSet containerSet = new ContainerSet();
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long containerId = 100L;
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ContainerProtos.ContainerLifeCycleState state = ContainerProtos
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.ContainerLifeCycleState.CLOSED;
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KeyValueContainerData kvData = new KeyValueContainerData(
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ContainerProtos.ContainerType.KeyValueContainer, containerId);
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kvData.setState(state);
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KeyValueContainer keyValueContainer = new KeyValueContainer(kvData);
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//addContainer
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boolean result = containerSet.addContainer(keyValueContainer);
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assertTrue(result);
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result = containerSet.addContainer(keyValueContainer);
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assertFalse(result);
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//getContainer
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KeyValueContainer container = (KeyValueContainer) containerSet
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.getContainer(containerId);
|
||||||
|
KeyValueContainerData keyValueContainerData = (KeyValueContainerData)
|
||||||
|
container.getContainerData();
|
||||||
|
assertEquals(containerId, keyValueContainerData.getContainerId());
|
||||||
|
assertEquals(state, keyValueContainerData.getState());
|
||||||
|
assertNull(containerSet.getContainer(1000L));
|
||||||
|
|
||||||
|
//removeContainer
|
||||||
|
assertTrue(containerSet.removeContainer(containerId));
|
||||||
|
assertFalse(containerSet.removeContainer(1000L));
|
||||||
|
}
|
||||||
|
|
||||||
|
@Test
|
||||||
|
public void testIteratorsAndCount() throws StorageContainerException {
|
||||||
|
|
||||||
|
ContainerSet containerSet = createContainerSet();
|
||||||
|
|
||||||
|
assertEquals(10, containerSet.containerCount());
|
||||||
|
|
||||||
|
// Using containerIterator.
|
||||||
|
Iterator<Container> containerIterator = containerSet.getContainerIterator();
|
||||||
|
|
||||||
|
int count = 0;
|
||||||
|
while(containerIterator.hasNext()) {
|
||||||
|
Container kv = containerIterator.next();
|
||||||
|
ContainerData containerData = kv.getContainerData();
|
||||||
|
long containerId = containerData.getContainerId();
|
||||||
|
if (containerId%2 == 0) {
|
||||||
|
assertEquals(ContainerProtos.ContainerLifeCycleState.CLOSED,
|
||||||
|
containerData.getState());
|
||||||
|
} else {
|
||||||
|
assertEquals(ContainerProtos.ContainerLifeCycleState.OPEN,
|
||||||
|
containerData.getState());
|
||||||
|
}
|
||||||
|
count++;
|
||||||
|
}
|
||||||
|
assertEquals(10, count);
|
||||||
|
|
||||||
|
//Using containerMapIterator.
|
||||||
|
Iterator<Map.Entry<Long, Container>> containerMapIterator = containerSet
|
||||||
|
.getContainerMapIterator();
|
||||||
|
|
||||||
|
count = 0;
|
||||||
|
while (containerMapIterator.hasNext()) {
|
||||||
|
Container kv = containerMapIterator.next().getValue();
|
||||||
|
ContainerData containerData = kv.getContainerData();
|
||||||
|
long containerId = containerData.getContainerId();
|
||||||
|
if (containerId%2 == 0) {
|
||||||
|
assertEquals(ContainerProtos.ContainerLifeCycleState.CLOSED,
|
||||||
|
containerData.getState());
|
||||||
|
} else {
|
||||||
|
assertEquals(ContainerProtos.ContainerLifeCycleState.OPEN,
|
||||||
|
containerData.getState());
|
||||||
|
}
|
||||||
|
count++;
|
||||||
|
}
|
||||||
|
assertEquals(10, count);
|
||||||
|
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
@Test
|
||||||
|
public void testGetContainerReport() throws IOException {
|
||||||
|
|
||||||
|
ContainerSet containerSet = createContainerSet();
|
||||||
|
|
||||||
|
ContainerReportsProto containerReportsRequestProto = containerSet
|
||||||
|
.getContainerReport();
|
||||||
|
|
||||||
|
assertEquals(10, containerReportsRequestProto.getReportsList().size());
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
@Test
|
||||||
|
public void testListContainer() throws StorageContainerException {
|
||||||
|
ContainerSet containerSet = createContainerSet();
|
||||||
|
|
||||||
|
List<ContainerData> result = new ArrayList<>();
|
||||||
|
containerSet.listContainer(2, 5, result);
|
||||||
|
|
||||||
|
assertEquals(5, result.size());
|
||||||
|
|
||||||
|
for(ContainerData containerData : result) {
|
||||||
|
assertTrue(containerData.getContainerId() >=2 && containerData
|
||||||
|
.getContainerId()<=6);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
private ContainerSet createContainerSet() throws StorageContainerException {
|
||||||
|
ContainerSet containerSet = new ContainerSet();
|
||||||
|
for (int i=0; i<10; i++) {
|
||||||
|
KeyValueContainerData kvData = new KeyValueContainerData(
|
||||||
|
ContainerProtos.ContainerType.KeyValueContainer, i);
|
||||||
|
if (i%2 == 0) {
|
||||||
|
kvData.setState(ContainerProtos.ContainerLifeCycleState.CLOSED);
|
||||||
|
} else {
|
||||||
|
kvData.setState(ContainerProtos.ContainerLifeCycleState.OPEN);
|
||||||
|
}
|
||||||
|
KeyValueContainer kv = new KeyValueContainer(kvData);
|
||||||
|
containerSet.addContainer(kv);
|
||||||
|
}
|
||||||
|
return containerSet;
|
||||||
|
}
|
||||||
|
|
||||||
|
}
|
||||||
Loading…
Reference in New Issue