org.apache.drill.exec.store.sys.PStoreTestUtil.java Source code

Introduction

Here is the source code for org.apache.drill.exec.store.sys.PStoreTestUtil.java

Source

/**
 * 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.drill.exec.store.sys;

import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertTrue;

import java.util.Iterator;
import java.util.Map;
import java.util.Map.Entry;

import com.fasterxml.jackson.databind.ObjectMapper;
import com.google.common.collect.Maps;

public class PStoreTestUtil {
    static final org.slf4j.Logger logger = org.slf4j.LoggerFactory.getLogger(PStoreTestUtil.class);

    public static void test(PStoreProvider provider) throws Exception {
        PStore<String> store = provider.getStore(
                PStoreConfig.newJacksonBuilder(new ObjectMapper(), String.class).name("sys.test").build());
        String[] keys = { "first", "second" };
        String[] values = { "value1", "value2" };
        Map<String, String> expectedMap = Maps.newHashMap();

        for (int i = 0; i < keys.length; i++) {
            expectedMap.put(keys[i], values[i]);
            store.put(keys[i], values[i]);
        }
        // allow one second for puts to propagate back to cache
        {
            Iterator<Map.Entry<String, String>> iter = store.iterator();
            for (int i = 0; i < keys.length; i++) {
                Entry<String, String> e = iter.next();
                assertTrue(expectedMap.containsKey(e.getKey()));
                assertEquals(expectedMap.get(e.getKey()), e.getValue());
            }

            assertFalse(iter.hasNext());
        }

        {
            Iterator<Map.Entry<String, String>> iter = store.iterator();
            while (iter.hasNext()) {
                iter.next();
                iter.remove();
            }
        }

        // allow one second for deletes to propagate back to cache

        assertFalse(store.iterator().hasNext());
    }
}