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@@ -0,0 +1,47 @@
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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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+
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+package org.apache.hadoop.fs.tosfs;
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+
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+import org.apache.hadoop.conf.Configuration;
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+import org.apache.hadoop.fs.FileSystem;
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+import org.apache.hadoop.fs.tosfs.object.tos.TOS;
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+import org.apache.hadoop.util.Preconditions;
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+
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+import java.io.IOException;
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+import java.net.URI;
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+import java.net.URISyntaxException;
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+
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+public class TosFS extends RawFS {
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+ public TosFS(URI uri, Configuration conf) throws IOException, URISyntaxException {
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+ super(verifyURI(uri, conf), conf);
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+ }
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+
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+ private static URI verifyURI(URI uri, Configuration conf) {
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+ Preconditions.checkNotNull(uri);
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+
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+ String scheme = uri.getScheme();
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+ if (scheme == null || scheme.isEmpty()) {
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+ scheme = FileSystem.getDefaultUri(conf).getScheme();
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+ }
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+ Preconditions.checkArgument(scheme.equals(TOS.TOS_SCHEME),
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+ "Unsupported scheme %s, expected scheme is %s.", scheme, TOS.TOS_SCHEME);
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+
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+ return uri;
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+ }
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+}
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