package cc.twittertools.corpus.demo;
import java.io.File;
import java.io.PrintStream;
import org.apache.commons.cli.CommandLine;
import org.apache.commons.cli.CommandLineParser;
import org.apache.commons.cli.GnuParser;
import org.apache.commons.cli.HelpFormatter;
import org.apache.commons.cli.OptionBuilder;
import org.apache.commons.cli.Options;
import org.apache.commons.cli.ParseException;
import org.apache.log4j.Logger;
import cc.twittertools.corpus.data.JsonStatusBlockReader;
import cc.twittertools.corpus.data.JsonStatusCorpusReader;
import cc.twittertools.corpus.data.Status;
import cc.twittertools.corpus.data.StatusStream;
/**
* Sample program to illustrate how to work with {@link StatusStream}.
*/
public class ReadStatuses {
private static final Logger LOG = Logger.getLogger(ReadStatuses.class);
private ReadStatuses() {}
private static final String INPUT_OPTION = "input";
private static final String VERBOSE_OPTION = "verbose";
private static final String DUMP_OPTION = "dump";
@SuppressWarnings("static-access")
public static void main(String[] args) throws Exception {
Options options = new Options();
options.addOption(OptionBuilder.withArgName("path").hasArg()
.withDescription("input directory or file").create(INPUT_OPTION));
options.addOption(VERBOSE_OPTION, false, "print logging output every 10000 tweets");
options.addOption(DUMP_OPTION, false, "dump statuses");
CommandLine cmdline = null;
CommandLineParser parser = new GnuParser();
try {
cmdline = parser.parse(options, args);
} catch (ParseException exp) {
System.err.println("Error parsing command line: " + exp.getMessage());
System.exit(-1);
}
if (!cmdline.hasOption(INPUT_OPTION)) {
HelpFormatter formatter = new HelpFormatter();
formatter.printHelp(ReadStatuses.class.getName(), options);
System.exit(-1);
}
PrintStream out = new PrintStream(System.out, true, "UTF-8");
StatusStream stream;
// Figure out if we're reading from HTML SequenceFiles or JSON.
File file = new File(cmdline.getOptionValue(INPUT_OPTION));
if (!file.exists()) {
System.err.println("Error: " + file + " does not exist!");
System.exit(-1);
}
if (file.isDirectory()) {
stream = new JsonStatusCorpusReader(file);
} else {
stream = new JsonStatusBlockReader(file);
}
int cnt = 0;
Status status;
while ((status = stream.next()) != null) {
if (cmdline.hasOption(DUMP_OPTION)) {
String text = status.getText();
if (text != null) {
text = text.replaceAll("\\s+", " ");
text = text.replaceAll("\0", "");
}
out.println(String.format("%d\t%s\t%s\t%s", status.getId(), status.getScreenname(),
status.getCreatedAt(), text));
}
cnt++;
if ( cnt % 10000 == 0 && cmdline.hasOption(VERBOSE_OPTION)) {
LOG.info(cnt + " statuses read");
}
}
stream.close();
LOG.info(String.format("Total of %s statuses read.", cnt));
}
}