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Unit test for VolumeDetached predicate

This commit is contained in:
andreisavu 2012-01-24 19:47:25 +02:00
parent fd01759c8a
commit 8489cc4e05
4 changed files with 272 additions and 48 deletions
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58
apis/ec2/src/main/java/org/jclouds/ec2/domain/Attachment.java
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@ -18,20 +18,20 @@
*/
package org.jclouds.ec2.domain;
import static com.google.common.base.Preconditions.checkNotNull;
import java.util.Date;
import static com.google.common.base.Preconditions.checkNotNull;
/**
*
* @author Adrian Cole
* @see <a href=
* "http://docs.amazonwebservices.com/AWSEC2/latest/APIReference/ApiReference-query-CreateVolume.html"
* />
* @author Adrian Cole
*/
public class Attachment implements Comparable<Attachment> {
public static enum Status {
ATTACHING, ATTACHED, DETACHING, DETACHED, BUSY, UNRECOGNIZED;
public String value() {
return name().toLowerCase();
}
@ -50,6 +50,53 @@ public class Attachment implements Comparable<Attachment> {
}
}
public static Builder builder() {
return new Builder();
}
public static class Builder {
private String region;
private String volumeId;
private String instanceId;
private String device;
private Status status;
private Date attachTime;
public Builder region(String region) {
this.region = region;
return this;
}
public Builder volumeId(String volumeId) {
this.volumeId = volumeId;
return this;
}
public Builder instanceId(String instanceId) {
this.instanceId = instanceId;
return this;
}
public Builder device(String device) {
this.device = device;
return this;
}
public Builder status(Status status) {
this.status = status;
return this;
}
public Builder attachTime(Date attachTime) {
this.attachTime = attachTime;
return this;
}
public Attachment build() {
return new Attachment(region, volumeId, instanceId, device, status, attachTime);
}
}
private final String region;
private final String volumeId;
private final String instanceId;
@ -68,7 +115,6 @@ public class Attachment implements Comparable<Attachment> {
/**
* Snapshots are tied to Regions and can only be used for volumes within the same Region.
*
*/
public String getRegion() {
return region;
@ -167,7 +213,7 @@ public class Attachment implements Comparable<Attachment> {
@Override
public String toString() {
return "Attachment [region=" + region + ", volumeId=" + volumeId + ", instanceId=" + instanceId + ", device="
+ device + ", attachTime=" + attachTime + ", status=" + status + "]";
+ device + ", attachTime=" + attachTime + ", status=" + status + "]";
}
@Override

82
apis/ec2/src/main/java/org/jclouds/ec2/domain/Volume.java
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@ -18,23 +18,22 @@
*/
package org.jclouds.ec2.domain;
import static com.google.common.base.Preconditions.checkNotNull;
import com.google.common.base.CaseFormat;
import com.google.common.collect.ImmutableSet;
import org.jclouds.javax.annotation.Nullable;
import java.util.Date;
import java.util.Set;
import org.jclouds.javax.annotation.Nullable;
import com.google.common.base.CaseFormat;
import com.google.common.collect.Iterables;
import com.google.common.collect.Sets;
import static com.google.common.base.Preconditions.checkNotNull;
import static com.google.common.collect.Sets.newHashSet;
/**
*
* @see <a href=
* "http://docs.amazonwebservices.com/AWSEC2/latest/APIReference/ApiReference-query-CreateVolume.html"
* />
* @author Adrian Cole
* @author Adrian Cole, Andrei Savu
*/
public class Volume implements Comparable<Volume> {
@ -83,6 +82,71 @@ public class Volume implements Comparable<Volume> {
}
}
}
public static Builder builder() {
return new Builder();
}
public static class Builder {
private String region;
private String id;
private int size;
@Nullable
private String snapshotId;
private String availabilityZone;
private Status status;
private Date createTime;
private Set<Attachment> attachments;
public Builder region(String region) {
this.region = region;
return this;
}
public Builder id(String id) {
this.id = id;
return this;
}
public Builder size(int size) {
this.size = size;
return this;
}
public Builder snapshotId(String snapshotId) {
this.snapshotId = snapshotId;
return this;
}
public Builder availabilityZone(String availabilityZone) {
this.availabilityZone = availabilityZone;
return this;
}
public Builder status(Status status) {
this.status = status;
return this;
}
public Builder createTime(Date createTime) {
this.createTime = createTime;
return this;
}
public Builder attachments(Attachment... attachments) {
this.attachments = newHashSet(attachments);
return this;
}
public Builder attachments(Set<Attachment> attachments) {
this.attachments = ImmutableSet.copyOf(attachments);
return this;
}
public Volume build() {
return new Volume(region, id, size, snapshotId, availabilityZone, status, createTime, attachments);
}
}
private final String region;
private final String id;
@ -92,7 +156,7 @@ public class Volume implements Comparable<Volume> {
private final String availabilityZone;
private final Status status;
private final Date createTime;
private final Set<Attachment> attachments = Sets.newLinkedHashSet();
private final Set<Attachment> attachments;
public Volume(String region, String id, int size, String snapshotId, String availabilityZone, Volume.Status status,
Date createTime, Iterable<Attachment> attachments) {
@ -103,7 +167,7 @@ public class Volume implements Comparable<Volume> {
this.availabilityZone = availabilityZone;
this.status = status;
this.createTime = createTime;
Iterables.addAll(this.attachments, attachments);
this.attachments = ImmutableSet.copyOf(attachments);
}
/**

65
apis/ec2/src/main/java/org/jclouds/ec2/predicates/VolumeDetached.java
View File

@ -1,5 +1,3 @@
package com.gravitant.cloud.adapters.provision.providers;
/**
* Licensed to jclouds, Inc. (jclouds) under one or more
* contributor license agreements. See the NOTICE file
@ -19,54 +17,55 @@ package com.gravitant.cloud.adapters.provision.providers;
* under the License.
*/
import javax.annotation.Resource;
import javax.inject.Singleton;
package org.jclouds.ec2.predicates;
import com.google.common.base.Predicate;
import com.google.common.collect.Iterables;
import com.google.inject.Inject;
import com.google.inject.Singleton;
import org.jclouds.ec2.domain.Attachment;
import org.jclouds.ec2.domain.Volume;
import org.jclouds.ec2.services.ElasticBlockStoreClient;
import org.jclouds.logging.Logger;
import com.google.common.base.Predicate;
import com.google.common.collect.Iterables;
import com.google.common.collect.Sets;
import com.google.inject.Inject;
import javax.annotation.Resource;
import static com.google.common.collect.Iterables.getLast;
/**
*
* Tests to see if a volume is detached.
*
*
* @author Karthik Arunachalam
*/
@Singleton
public class VolumeDetached implements Predicate<Attachment> {
private final ElasticBlockStoreClient client;
@Resource
protected Logger logger = Logger.NULL;
private final ElasticBlockStoreClient client;
@Resource
protected Logger logger = Logger.NULL;
@Inject
public VolumeDetached(ElasticBlockStoreClient client) {
this.client = client;
}
@Inject
public VolumeDetached(ElasticBlockStoreClient client) {
this.client = client;
}
public boolean apply(Attachment attachment) {
logger.trace("looking for volume %s", attachment.getVolumeId());
Volume volume = Iterables.getOnlyElement(client.describeVolumesInRegion(attachment
.getRegion(), attachment.getVolumeId()));
public boolean apply(Attachment attachment) {
logger.trace("looking for volume %s", attachment.getVolumeId());
Volume volume = Iterables.getOnlyElement(client.describeVolumesInRegion(attachment
.getRegion(), attachment.getVolumeId()));
/*If attachment size is 0 volume is detached for sure.*/
if (volume.getAttachments().size() == 0) {
return true;
}
/*If attachment size is 0 volume is detached for sure.*/
if (volume.getAttachments().size() == 0) {
return true;
}
/* But if attachment size is > 0, then the attachment could be in any state.
* So we need to check if the status is DETACHED (return true) or not (return false).
*/
Attachment lastAttachment = Sets.newTreeSet(volume.getAttachments()).last();
logger.trace("%s: looking for status %s: currently: %s", lastAttachment,
Attachment.Status.DETACHED, lastAttachment.getStatus());
return lastAttachment.getStatus() == Attachment.Status.DETACHED;
}
/* But if attachment size is > 0, then the attachment could be in any state.
* So we need to check if the status is DETACHED (return true) or not (return false).
*/
Attachment lastAttachment = getLast(volume.getAttachments());
logger.trace("%s: looking for status %s: currently: %s", lastAttachment,
Attachment.Status.DETACHED, lastAttachment.getStatus());
return lastAttachment.getStatus() == Attachment.Status.DETACHED;
}
}

115
apis/ec2/src/test/java/org/jclouds/ec2/predicates/VolumeDetachedTest.java Normal file
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@ -0,0 +1,115 @@
/**
* Licensed to jclouds, Inc. (jclouds) under one or more
* contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. jclouds 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.jclouds.ec2.predicates;
import org.jclouds.ec2.domain.Attachment;
import org.jclouds.ec2.domain.Volume;
import org.jclouds.ec2.services.ElasticBlockStoreClient;
import org.testng.annotations.BeforeMethod;
import org.testng.annotations.DataProvider;
import org.testng.annotations.Test;
import java.util.Date;
import java.util.Set;
import static com.google.common.collect.Sets.newHashSet;
import static org.easymock.EasyMock.createMock;
import static org.easymock.EasyMock.expect;
import static org.easymock.EasyMock.replay;
import static org.easymock.EasyMock.verify;
import static org.jclouds.ec2.domain.Attachment.Status;
import static org.testng.Assert.assertFalse;
import static org.testng.Assert.assertTrue;
/**
* @author Andrei Savu
*/
@Test(groups = "unit", singleThreaded = true)
public class VolumeDetachedTest {
private ElasticBlockStoreClient client;
private VolumeDetached volumeDetached;
@BeforeMethod
public void setUp() {
client = createMock(ElasticBlockStoreClient.class);
volumeDetached = new VolumeDetached(client);
}
@Test
public void testVolumeWithEmptyListOfAttachments() {
Attachment attachment = newAttachmentWithStatus(Status.ATTACHED);
Set<Volume> volumes = newHashSet(newVolumeWithAttachments(/* empty */));
expect(client.describeVolumesInRegion(attachment.getRegion(),
attachment.getVolumeId())).andReturn(volumes);
replay(client);
assertTrue(volumeDetached.apply(attachment));
verify(client);
}
@DataProvider(name = "notDetachedStatuses")
public Object[][] provideNotDetachedStatuses() {
return new Object[][]{
{Status.ATTACHED},
{Status.ATTACHING},
{Status.BUSY},
{Status.DETACHING},
{Status.UNRECOGNIZED}
};
}
@Test(dataProvider = "notDetachedStatuses")
public void testWithDifferentStatus(Status attachmentStatus) {
Attachment attachment = newAttachmentWithStatus(attachmentStatus);
Set<Volume> volumes = newHashSet(newVolumeWithAttachments(attachment));
expect(client.describeVolumesInRegion(attachment.getRegion(),
attachment.getVolumeId())).andReturn(volumes);
replay(client);
assertFalse(volumeDetached.apply(attachment));
verify(client);
}
@Test
public void testWithStatusDetached() {
Attachment attachment = newAttachmentWithStatus(Status.DETACHED);
Set<Volume> volumes = newHashSet(newVolumeWithAttachments(attachment));
expect(client.describeVolumesInRegion(attachment.getRegion(),
attachment.getVolumeId())).andReturn(volumes);
replay(client);
assertTrue(volumeDetached.apply(attachment));
verify(client);
}
private Volume newVolumeWithAttachments(Attachment... attachments) {
return Volume.builder().region("us-east-1").attachments(attachments).build();
}
private Attachment newAttachmentWithStatus(Status status) {
return Attachment.builder()
.volumeId("1").status(status).region("us-east-1").attachTime(new Date())
.device("/dev/sda").instanceId("us-east-1/i-1234").build();
}
}