org.apache.hama.examples.SymmetricMatrixGenTest.java Source code

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Here is the source code for org.apache.hama.examples.SymmetricMatrixGenTest.java

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/**
 * 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.hama.examples;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.fs.FileStatus;
import org.apache.hadoop.fs.FileSystem;
import org.apache.hadoop.fs.Path;
import org.apache.hadoop.io.SequenceFile;
import org.apache.hadoop.io.Text;
import org.apache.hadoop.io.Writable;
import org.apache.hama.commons.io.TextArrayWritable;
import org.apache.hama.examples.util.SymmetricMatrixGen;
import org.junit.Test;

public class SymmetricMatrixGenTest {
    protected static Log LOG = LogFactory.getLog(SymmetricMatrixGenTest.class);
    private static String TEST_OUTPUT = "/tmp/test";

    @Test
    public void testGraphGenerator() throws Exception {
        Configuration conf = new Configuration();

        SymmetricMatrixGen.main(new String[] { "20", "10", TEST_OUTPUT, "3" });
        FileSystem fs = FileSystem.get(conf);

        FileStatus[] globStatus = fs.globStatus(new Path(TEST_OUTPUT + "/part-*"));
        for (FileStatus fts : globStatus) {
            SequenceFile.Reader reader = new SequenceFile.Reader(fs, fts.getPath(), conf);
            Text key = new Text();
            TextArrayWritable value = new TextArrayWritable();

            while (reader.next(key, value)) {
                String values = "";
                for (Writable v : value.get()) {
                    values += v.toString() + " ";
                }
                LOG.info(fts.getPath() + ": " + key.toString() + " | " + values);
            }
            reader.close();
        }

        fs.delete(new Path(TEST_OUTPUT), true);
    }
}