org.apache.flink.runtime.state.gemini.internal.DirectoryStreamStateHandle Maven / Gradle / Ivy

/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF 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.apache.flink.runtime.state.gemini.internal;

import org.apache.flink.core.fs.FSDataInputStream;
import org.apache.flink.core.fs.Path;
import org.apache.flink.runtime.state.DirectoryStateHandle;
import org.apache.flink.runtime.state.StreamStateHandle;

import javax.annotation.Nonnull;

/**
 * Wrap {@link DirectoryStateHandle} to a {@link StreamStateHandle}.
 */
public class DirectoryStreamStateHandle extends DirectoryStateHandle implements StreamStateHandle {

	private static final long serialVersionUID = -6453596108675892492L;

	public DirectoryStreamStateHandle(@Nonnull Path directory) {
		super(directory);
	}

	@Override
	public FSDataInputStream openInputStream() {
		throw new UnsupportedOperationException();
	}

	@Override
	public boolean equals(Object o) {
		if (this == o) {
			return true;
		}
		if (o == null || getClass() != o.getClass()) {
			return false;
		}

		DirectoryStreamStateHandle that = (DirectoryStreamStateHandle) o;

		return directory.equals(that.directory);
	}

	@Override
	public int hashCode() {
		return directory.hashCode();
	}

	@Override
	public String toString() {
		return "DirectoryStreamStateHandle{" +
			"directory=" + directory +
			'}';
	}
}