hyracks/hyracks-yarn/hyracks-yarn-common/src/main/java/edu/uci/ics/hyracks/yarn/common/resources/LocalResourceHelper.java

/*
 * Copyright 2009-2010 by The Regents of the University of California
 * Licensed 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 from
 * 
 *     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 edu.uci.ics.hyracks.yarn.common.resources;

import java.io.File;
import java.io.IOException;

import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.fs.FileContext;
import org.apache.hadoop.fs.Path;
import org.apache.hadoop.yarn.api.records.LocalResource;
import org.apache.hadoop.yarn.api.records.LocalResourceType;
import org.apache.hadoop.yarn.api.records.LocalResourceVisibility;
import org.apache.hadoop.yarn.api.records.URL;
import org.apache.hadoop.yarn.util.ConverterUtils;
import org.apache.hadoop.yarn.util.Records;

public class LocalResourceHelper {
    private static LocalResource createLocalResourceFromPath(Configuration config, File path) throws IOException {
        LocalResource lr = Records.newRecord(LocalResource.class);
        URL url = ConverterUtils.getYarnUrlFromPath(FileContext.getFileContext().makeQualified(new Path(path.toURI())));
        lr.setResource(url);
        lr.setVisibility(LocalResourceVisibility.APPLICATION);
        lr.setTimestamp(path.lastModified());
        lr.setSize(path.length());
        return lr;
    }

    public static LocalResource createFileResource(Configuration config, File path) throws IOException {
        LocalResource lr = createLocalResourceFromPath(config, path);
        lr.setType(LocalResourceType.FILE);
        return lr;
    }

    public static LocalResource createArchiveResource(Configuration config, File path) throws IOException {
        LocalResource lr = createLocalResourceFromPath(config, path);
        lr.setType(LocalResourceType.ARCHIVE);
        return lr;
    }
}