IgfsClientExistsCallable.java

/*
 * 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.ignite.internal.processors.igfs.client;

import org.apache.ignite.igfs.IgfsPath;
import org.apache.ignite.internal.processors.igfs.IgfsContext;
import org.apache.ignite.internal.util.typedef.internal.S;
import org.jetbrains.annotations.Nullable;

/**
 * IGFS client exists callable.
 */
public class IgfsClientExistsCallable extends IgfsClientAbstractCallable<Boolean> {
    /** */
    private static final long serialVersionUID = 0L;

    /**
     * Default constructor.
     */
    public IgfsClientExistsCallable() {
        // NO-op.
    }

    /**
     * Constructor.
     *
     * @param igfsName IGFS name.
     * @param user IGFS user name.
     * @param path Path.
     */
    public IgfsClientExistsCallable(@Nullable String igfsName, @Nullable String user, IgfsPath path) {
        super(igfsName, user, path);
    }

    /** {@inheritDoc} */
    @Override protected Boolean call0(IgfsContext ctx) throws Exception {
        return ctx.igfs().exists(path);
    }

    /** {@inheritDoc} */
    @Override public String toString() {
        return S.toString(IgfsClientExistsCallable.class, this);
    }
}