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Elasticsearch subproject :server
/*
* Licensed to Elasticsearch under one or more contributor
* license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright
* ownership. Elasticsearch 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.elasticsearch.common.blobstore.url;
import org.elasticsearch.common.blobstore.BlobMetaData;
import org.elasticsearch.common.blobstore.BlobPath;
import org.elasticsearch.common.blobstore.support.AbstractBlobContainer;
import java.io.BufferedInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.net.URL;
import java.util.Map;
/**
* URL blob implementation of {@link org.elasticsearch.common.blobstore.BlobContainer}
*/
public class URLBlobContainer extends AbstractBlobContainer {
protected final URLBlobStore blobStore;
protected final URL path;
/**
* Constructs new URLBlobContainer
*
* @param blobStore blob store
* @param blobPath blob path for this container
* @param path URL for this container
*/
public URLBlobContainer(URLBlobStore blobStore, BlobPath blobPath, URL path) {
super(blobPath);
this.blobStore = blobStore;
this.path = path;
}
/**
* Returns URL for this container
*
* @return URL for this container
*/
public URL url() {
return this.path;
}
/**
* This operation is not supported by URLBlobContainer
*/
@Override
public Map listBlobs() throws IOException {
throw new UnsupportedOperationException("URL repository doesn't support this operation");
}
/**
* This operation is not supported by URLBlobContainer
*/
@Override
public Map listBlobsByPrefix(String blobNamePrefix) throws IOException {
throw new UnsupportedOperationException("URL repository doesn't support this operation");
}
@Override
public void move(String from, String to) throws IOException {
throw new UnsupportedOperationException("URL repository doesn't support this operation");
}
/**
* This operation is not supported by URLBlobContainer
*/
@Override
public void deleteBlob(String blobName) throws IOException {
throw new UnsupportedOperationException("URL repository is read only");
}
/**
* This operation is not supported by URLBlobContainer
*/
@Override
public boolean blobExists(String blobName) {
throw new UnsupportedOperationException("URL repository doesn't support this operation");
}
@Override
public InputStream readBlob(String name) throws IOException {
return new BufferedInputStream(new URL(path, name).openStream(), blobStore.bufferSizeInBytes());
}
@Override
public void writeBlob(String blobName, InputStream inputStream, long blobSize) throws IOException {
throw new UnsupportedOperationException("URL repository doesn't support this operation");
}
}