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* 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
*
* 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
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* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package org.apache.streams.twitter.test.data;
import org.apache.streams.jackson.StreamsJacksonMapper;
import org.apache.streams.twitter.converter.TwitterDocumentClassifier;
import org.apache.streams.twitter.pojo.Delete;
import org.apache.streams.twitter.pojo.Retweet;
import org.apache.streams.twitter.pojo.Tweet;
import com.fasterxml.jackson.databind.DeserializationFeature;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.databind.node.ObjectNode;
import org.apache.commons.lang.StringUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.testng.Assert;
import org.testng.annotations.Test;
import java.io.BufferedReader;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.util.Optional;
import java.util.stream.Collectors;
import java.util.stream.Stream;
import static org.apache.streams.twitter.converter.TwitterDateTimeFormat.TWITTER_FORMAT;
import static org.hamcrest.CoreMatchers.is;
import static org.hamcrest.CoreMatchers.not;
import static org.hamcrest.CoreMatchers.nullValue;
import static org.hamcrest.MatcherAssert.assertThat;
import static org.hamcrest.Matchers.greaterThan;
/**
* Tests serialization / deserialization of twitter jsons.
*/
public class TwitterObjectMapperIT {
private static final Logger LOGGER = LoggerFactory.getLogger(TwitterObjectMapperIT.class);
private ObjectMapper mapper = StreamsJacksonMapper.getInstance(Stream.of(TWITTER_FORMAT).collect(Collectors.toList()));
@Test
public void tests() {
mapper.configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, Boolean.TRUE);
mapper.configure(DeserializationFeature.ACCEPT_SINGLE_VALUE_AS_ARRAY, Boolean.TRUE);
mapper.configure(DeserializationFeature.ACCEPT_EMPTY_STRING_AS_NULL_OBJECT, Boolean.TRUE);
InputStream is = TwitterObjectMapperIT.class.getResourceAsStream("/testtweets.txt");
InputStreamReader isr = new InputStreamReader(is);
BufferedReader br = new BufferedReader(isr);
int tweetlinks = 0;
int retweetlinks = 0;
try {
while (br.ready()) {
String line = br.readLine();
if (!StringUtils.isEmpty(line)) {
LOGGER.info("raw: {}", line);
Class detected = new TwitterDocumentClassifier().detectClasses(line).get(0);
ObjectNode event = (ObjectNode) mapper.readTree(line);
assertThat(event, is(not(nullValue())));
if ( detected == Tweet.class ) {
Tweet tweet = mapper.convertValue(event, Tweet.class);
assertThat(tweet, is(not(nullValue())));
assertThat(tweet.getCreatedAt(), is(not(nullValue())));
assertThat(tweet.getText(), is(not(nullValue())));
assertThat(tweet.getUser(), is(not(nullValue())));
tweetlinks += Optional.ofNullable(tweet.getEntities().getUrls().size()).orElse(0);
} else if ( detected == Retweet.class ) {
Retweet retweet = mapper.convertValue(event, Retweet.class);
assertThat(retweet.getRetweetedStatus(), is(not(nullValue())));
assertThat(retweet.getRetweetedStatus().getCreatedAt(), is(not(nullValue())));
assertThat(retweet.getRetweetedStatus().getText(), is(not(nullValue())));
assertThat(retweet.getRetweetedStatus().getUser(), is(not(nullValue())));
assertThat(retweet.getRetweetedStatus().getUser().getId(), is(not(nullValue())));
assertThat(retweet.getRetweetedStatus().getUser().getCreatedAt(), is(not(nullValue())));
retweetlinks += Optional.ofNullable(retweet.getRetweetedStatus().getEntities().getUrls().size()).orElse(0);
} else if ( detected == Delete.class ) {
Delete delete = mapper.convertValue(event, Delete.class);
assertThat(delete.getDelete(), is(not(nullValue())));
assertThat(delete.getDelete().getStatus(), is(not(nullValue())));
assertThat(delete.getDelete().getStatus().getId(), is(not(nullValue())));
assertThat(delete.getDelete().getStatus().getUserId(), is(not(nullValue())));
} else {
Assert.fail();
}
}
}
} catch ( Exception ex ) {
LOGGER.error("Exception: ", ex);
Assert.fail();
}
assertThat(tweetlinks, is(greaterThan(0)));
assertThat(retweetlinks, is(greaterThan(0)));
}
}