kopia lustrzana https://github.com/gaul/s3proxy
Add NullBlobStore
This throws away all data during object creation and reconstructs it with NUL bytes. Clients can use this middleware for performance testing or to simulate very large objects. Fixes #131.pull/197/head
Andrew Gaul
rodzic
92ef32f860
commit
7116f29199
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@ -171,6 +171,13 @@ public final class Main {
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delay, TimeUnit.SECONDS, probability);
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}
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String nullBlobStore = properties.getProperty(
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S3ProxyConstants.PROPERTY_NULL_BLOBSTORE);
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if ("true".equalsIgnoreCase(nullBlobStore)) {
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System.err.println("Using null storage backend");
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blobStore = NullBlobStore.newNullBlobStore(blobStore);
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}
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S3Proxy s3Proxy;
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try {
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S3Proxy.Builder s3ProxyBuilder = S3Proxy.builder()
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@ -0,0 +1,179 @@
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/*
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* Copyright 2014-2017 Andrew Gaul <andrew@gaul.org>
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* 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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*
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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.gaul.s3proxy;
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import java.io.IOException;
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import java.io.InputStream;
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import java.util.List;
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import com.google.common.collect.ImmutableList;
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import com.google.common.hash.HashCode;
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import com.google.common.io.ByteSource;
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import com.google.common.io.ByteStreams;
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import com.google.common.primitives.Longs;
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import org.jclouds.blobstore.BlobStore;
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import org.jclouds.blobstore.domain.Blob;
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import org.jclouds.blobstore.domain.BlobMetadata;
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import org.jclouds.blobstore.domain.MultipartPart;
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import org.jclouds.blobstore.domain.MultipartUpload;
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import org.jclouds.blobstore.options.GetOptions;
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import org.jclouds.blobstore.options.PutOptions;
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import org.jclouds.blobstore.util.ForwardingBlobStore;
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import org.jclouds.io.Payload;
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import org.jclouds.io.payloads.ByteSourcePayload;
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final class NullBlobStore extends ForwardingBlobStore {
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private NullBlobStore(BlobStore blobStore) {
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super(blobStore);
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}
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static BlobStore newNullBlobStore(BlobStore blobStore) {
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return new NullBlobStore(blobStore);
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}
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@Override
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public BlobMetadata blobMetadata(String container, String name) {
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Blob blob = getBlob(container, name);
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if (blob == null) {
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return null;
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}
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return blob.getMetadata();
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}
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@Override
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public Blob getBlob(String container, String name) {
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return getBlob(container, name, GetOptions.NONE);
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}
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@Override
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public Blob getBlob(String container, String name, GetOptions options) {
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Blob blob = super.getBlob(container, name, options);
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if (blob == null) {
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return null;
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}
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byte[] array;
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try (InputStream is = blob.getPayload().openStream()) {
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array = ByteStreams.toByteArray(is);
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} catch (IOException ioe) {
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throw new RuntimeException(ioe);
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}
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long length = Longs.fromByteArray(array);
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ByteSourcePayload payload = new ByteSourcePayload(
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new NullByteSource().slice(0, length));
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payload.setContentMetadata(blob.getPayload().getContentMetadata());
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payload.getContentMetadata().setContentLength(length);
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payload.getContentMetadata().setContentMD5((HashCode) null);
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blob.setPayload(payload);
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return blob;
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}
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@Override
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public String putBlob(String containerName, Blob blob) {
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return putBlob(containerName, blob, PutOptions.NONE);
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}
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@Override
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public String putBlob(String containerName, Blob blob,
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PutOptions options) {
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long length;
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try (InputStream is = blob.getPayload().openStream()) {
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length = ByteStreams.copy(is, ByteStreams.nullOutputStream());
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} catch (IOException ioe) {
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throw new RuntimeException(ioe);
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}
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byte[] array = Longs.toByteArray(length);
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ByteSourcePayload payload = new ByteSourcePayload(
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ByteSource.wrap(array));
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payload.setContentMetadata(blob.getPayload().getContentMetadata());
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payload.getContentMetadata().setContentLength((long) array.length);
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payload.getContentMetadata().setContentMD5((HashCode) null);
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blob.setPayload(payload);
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return super.putBlob(containerName, blob, options);
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}
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@Override
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public String completeMultipartUpload(final MultipartUpload mpu,
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final List<MultipartPart> parts) {
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long length = 0;
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for (MultipartPart part : parts) {
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length += part.partSize();
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}
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byte[] array = Longs.toByteArray(length);
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ByteSourcePayload payload = new ByteSourcePayload(
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ByteSource.wrap(array));
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super.abortMultipartUpload(mpu);
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MultipartPart part = delegate().uploadMultipartPart(mpu, 1, payload);
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return delegate().completeMultipartUpload(mpu, ImmutableList.of(part));
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}
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@Override
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public MultipartPart uploadMultipartPart(MultipartUpload mpu,
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int partNumber, Payload payload) {
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long length;
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try (InputStream is = payload.openStream()) {
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length = ByteStreams.copy(is, ByteStreams.nullOutputStream());
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} catch (IOException ioe) {
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throw new RuntimeException(ioe);
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}
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byte[] array = Longs.toByteArray(length);
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ByteSourcePayload newPayload = new ByteSourcePayload(
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ByteSource.wrap(array));
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newPayload.setContentMetadata(payload.getContentMetadata());
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newPayload.getContentMetadata().setContentLength((long) array.length);
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newPayload.getContentMetadata().setContentMD5((HashCode) null);
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MultipartPart part = super.uploadMultipartPart(mpu, partNumber,
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newPayload);
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return MultipartPart.create(part.partNumber(), length, part.partETag(),
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part.lastModified());
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}
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// Cannot read parts to get the embedded size so return zero instead.
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@Override
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public List<MultipartPart> listMultipartUpload(MultipartUpload mpu) {
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ImmutableList.Builder<MultipartPart> builder = ImmutableList.builder();
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for (MultipartPart part : super.listMultipartUpload(mpu)) {
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builder.add(MultipartPart.create(part.partNumber(), 0,
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part.partETag(), part.lastModified()));
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}
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return builder.build();
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}
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private static final class NullByteSource extends ByteSource {
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@Override
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public InputStream openStream() throws IOException {
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return new NullInputStream();
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}
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}
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private static final class NullInputStream extends InputStream {
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@Override
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public int read() throws IOException {
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return 0;
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}
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}
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}
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@ -64,6 +64,9 @@ public final class S3ProxyConstants {
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/** Probability of eventual consistency, between 0.0 and 1.0. */
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public static final String PROPERTY_EVENTUAL_CONSISTENCY_PROBABILITY =
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"s3proxy.eventual-consistency.probability";
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/** Discard object data. */
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public static final String PROPERTY_NULL_BLOBSTORE =
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"s3proxy.null-blobstore";
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static final String PROPERTY_ALT_JCLOUDS_PREFIX = "alt.";
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@ -0,0 +1,195 @@
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/*
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* Copyright 2014-2017 Andrew Gaul <andrew@gaul.org>
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* 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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*
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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.gaul.s3proxy;
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import static org.assertj.core.api.Assertions.assertThat;
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import java.io.IOException;
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import java.io.InputStream;
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import java.util.List;
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import java.util.Random;
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import com.google.common.collect.ImmutableList;
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import com.google.common.collect.ImmutableMap;
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import com.google.common.hash.Hashing;
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import com.google.common.io.ByteSource;
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import com.google.common.io.ByteStreams;
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import com.google.common.net.MediaType;
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import com.google.inject.Module;
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import org.jclouds.ContextBuilder;
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import org.jclouds.blobstore.BlobStore;
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import org.jclouds.blobstore.BlobStoreContext;
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import org.jclouds.blobstore.domain.Blob;
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import org.jclouds.blobstore.domain.BlobMetadata;
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import org.jclouds.blobstore.domain.MultipartPart;
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import org.jclouds.blobstore.domain.MultipartUpload;
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import org.jclouds.blobstore.options.PutOptions;
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import org.jclouds.io.ContentMetadata;
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import org.jclouds.io.Payload;
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import org.jclouds.io.Payloads;
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import org.jclouds.logging.slf4j.config.SLF4JLoggingModule;
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import org.junit.After;
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import org.junit.Before;
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import org.junit.Test;
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public final class NullBlobStoreTest {
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private static final ByteSource BYTE_SOURCE =
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TestUtils.randomByteSource().slice(0, 1024);
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private BlobStoreContext context;
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private BlobStore blobStore;
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private String containerName;
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private BlobStore nullBlobStore;
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@Before
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public void setUp() throws Exception {
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containerName = createRandomContainerName();
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context = ContextBuilder
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.newBuilder("transient")
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.credentials("identity", "credential")
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.modules(ImmutableList.<Module>of(new SLF4JLoggingModule()))
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.build(BlobStoreContext.class);
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blobStore = context.getBlobStore();
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blobStore.createContainerInLocation(null, containerName);
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nullBlobStore = NullBlobStore.newNullBlobStore(blobStore);
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}
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@After
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public void tearDown() throws Exception {
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if (context != null) {
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blobStore.deleteContainer(containerName);
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context.close();
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}
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}
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@Test
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public void testCreateBlobGetBlob() throws Exception {
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String blobName = createRandomBlobName();
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Blob blob = makeBlob(nullBlobStore, blobName);
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nullBlobStore.putBlob(containerName, blob);
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blob = nullBlobStore.getBlob(containerName, blobName);
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validateBlobMetadata(blob.getMetadata(), BYTE_SOURCE);
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// content differs, only compare length
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try (InputStream actual = blob.getPayload().openStream();
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InputStream expected = BYTE_SOURCE.openStream()) {
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long actualLength = ByteStreams.copy(actual,
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ByteStreams.nullOutputStream());
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long expectedLength = ByteStreams.copy(expected,
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ByteStreams.nullOutputStream());
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assertThat(actualLength).isEqualTo(expectedLength);
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}
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}
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@Test
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public void testCreateBlobBlobMetadata() throws Exception {
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String blobName = createRandomBlobName();
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Blob blob = makeBlob(nullBlobStore, blobName);
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nullBlobStore.putBlob(containerName, blob);
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BlobMetadata metadata = nullBlobStore.blobMetadata(containerName,
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blobName);
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validateBlobMetadata(metadata, BYTE_SOURCE);
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}
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@Test
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public void testCreateMultipartBlobGetBlob() throws Exception {
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String blobName = "multipart-upload";
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BlobMetadata blobMetadata = makeBlob(nullBlobStore, blobName)
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.getMetadata();
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MultipartUpload mpu = nullBlobStore.initiateMultipartUpload(
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containerName, blobMetadata, new PutOptions());
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ByteSource byteSource = TestUtils.randomByteSource().slice(
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0, nullBlobStore.getMinimumMultipartPartSize() + 1);
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ByteSource byteSource1 = byteSource.slice(
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0, nullBlobStore.getMinimumMultipartPartSize());
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ByteSource byteSource2 = byteSource.slice(
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nullBlobStore.getMinimumMultipartPartSize(), 1);
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Payload payload1 = Payloads.newByteSourcePayload(byteSource1);
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Payload payload2 = Payloads.newByteSourcePayload(byteSource2);
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payload1.getContentMetadata().setContentLength(byteSource1.size());
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payload2.getContentMetadata().setContentLength(byteSource2.size());
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MultipartPart part1 = nullBlobStore.uploadMultipartPart(mpu, 1,
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payload1);
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MultipartPart part2 = nullBlobStore.uploadMultipartPart(mpu, 2,
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payload2);
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List<MultipartPart> parts = nullBlobStore.listMultipartUpload(mpu);
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assertThat(parts.get(0).partNumber()).isEqualTo(1);
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assertThat(parts.get(0).partSize()).isZero();
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assertThat(parts.get(0).partETag()).isEqualTo(part1.partETag());
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assertThat(parts.get(1).partNumber()).isEqualTo(2);
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assertThat(parts.get(1).partSize()).isZero();
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assertThat(parts.get(1).partETag()).isEqualTo(part2.partETag());
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nullBlobStore.completeMultipartUpload(mpu, ImmutableList.of(part1,
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part2));
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Blob newBlob = nullBlobStore.getBlob(containerName, blobName);
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validateBlobMetadata(newBlob.getMetadata(), byteSource);
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// content differs, only compare length
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try (InputStream actual = newBlob.getPayload().openStream();
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InputStream expected = byteSource.openStream()) {
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long actualLength = ByteStreams.copy(actual,
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ByteStreams.nullOutputStream());
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long expectedLength = ByteStreams.copy(expected,
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ByteStreams.nullOutputStream());
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assertThat(actualLength).isEqualTo(expectedLength);
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}
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}
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private static String createRandomContainerName() {
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return "container-" + new Random().nextInt(Integer.MAX_VALUE);
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}
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private static String createRandomBlobName() {
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return "blob-" + new Random().nextInt(Integer.MAX_VALUE);
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}
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private static Blob makeBlob(BlobStore blobStore, String blobName)
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throws IOException {
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return blobStore.blobBuilder(blobName)
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.payload(BYTE_SOURCE)
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.contentDisposition("attachment; filename=foo.mp4")
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.contentEncoding("compress")
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.contentLength(BYTE_SOURCE.size())
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.contentType(MediaType.MP4_AUDIO)
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.contentMD5(BYTE_SOURCE.hash(Hashing.md5()))
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.userMetadata(ImmutableMap.of("key", "value"))
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.build();
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}
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private static void validateBlobMetadata(BlobMetadata metadata,
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ByteSource byteSource) throws IOException {
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assertThat(metadata).isNotNull();
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ContentMetadata contentMetadata = metadata.getContentMetadata();
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assertThat(contentMetadata.getContentDisposition())
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.isEqualTo("attachment; filename=foo.mp4");
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assertThat(contentMetadata.getContentEncoding())
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.isEqualTo("compress");
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assertThat(contentMetadata.getContentType())
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.isEqualTo(MediaType.MP4_AUDIO.toString());
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assertThat(metadata.getUserMetadata())
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.isEqualTo(ImmutableMap.of("key", "value"));
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}
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}
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