/**
* 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.blur.shell;
import java.io.PrintWriter;
import java.io.Writer;
import java.util.List;
import jline.Terminal;
import jline.console.ConsoleReader;
import org.apache.blur.shell.PagingPrintWriter.FinishedException;
import org.apache.blur.thirdparty.thrift_0_9_0.TException;
import org.apache.blur.thrift.generated.Blur;
import org.apache.blur.thrift.generated.BlurException;
import org.apache.commons.cli.CommandLine;
import org.apache.commons.cli.CommandLineParser;
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.commons.cli.PosixParser;
public class TermsDataCommand extends Command implements TableFirstArgCommand {
@Override
public void doit(PrintWriter outPw, Blur.Iface client, String[] args) throws CommandException, TException,
BlurException {
if (args.length < 3) {
throw new CommandException("Invalid args: " + help());
}
try {
doitInternal(outPw, client, args);
} catch (FinishedException e) {
if (Main.debug) {
e.printStackTrace();
}
}
}
private void doitInternal(PrintWriter outPw, Blur.Iface client, String[] args) throws FinishedException,
BlurException, TException {
ConsoleReader reader = getConsoleReader();
int totalWidth = 200;
if (reader != null) {
totalWidth = reader.getTerminal().getWidth() - 2;
}
int[] cols = new int[2];
cols[0] = 20;
cols[1] = totalWidth - cols[0];
ColumnBasedPrintWriter out = new ColumnBasedPrintWriter(outPw, cols);
if (reader != null) {
Terminal terminal = reader.getTerminal();
out.setLineLimit(terminal.getHeight() - 2);
}
CommandLine cmd = parse(args, outPw);
if (cmd == null) {
return;
}
String tablename = args[1];
String familyPlusColumn = args[2];
String family = null;
String column = familyPlusColumn;
String startWith = "";
short size = 100;
if (familyPlusColumn.contains(".")) {
int index = familyPlusColumn.indexOf(".");
family = familyPlusColumn.substring(0, index);
column = familyPlusColumn.substring(index + 1);
}
if (cmd.hasOption("n")) {
size = Short.parseShort(cmd.getOptionValue("n"));
}
if (cmd.hasOption("s")) {
startWith = cmd.getOptionValue("s");
}
boolean checkFreq = false;
if (cmd.hasOption("F")) {
checkFreq = true;
}
while (true) {
List<String> terms = client.terms(tablename, family, column, startWith, size);
for (int i = 0; i < terms.size(); i++) {
String term = terms.get(i);
if (term.equals(startWith)) {
continue;
}
if (checkFreq) {
out.println(client.recordFrequency(tablename, family, column, term), term);
} else {
out.println(" - ", term);
}
startWith = term;
}
}
}
@Override
public String description() {
return "Gets the terms list.";
}
@Override
public String usage() {
return "<tablename> <field> [-s <startwith>] [-n <number>] [-F frequency]";
}
@Override
public String name() {
return "terms";
}
@SuppressWarnings("static-access")
private static CommandLine parse(String[] otherArgs, Writer out) {
Options options = new Options();
options.addOption(OptionBuilder.withArgName("startwith").hasArg().withDescription("The value to start with.")
.create("s"));
options.addOption(OptionBuilder.withArgName("size").hasArg().withDescription("The number of terms to return.")
.create("n"));
options.addOption(OptionBuilder.withDescription("Get the frequency of each term.").create("F"));
CommandLineParser parser = new PosixParser();
CommandLine cmd = null;
try {
cmd = parser.parse(options, otherArgs);
} catch (ParseException e) {
HelpFormatter formatter = new HelpFormatter();
PrintWriter pw = new PrintWriter(out, true);
formatter.printHelp(pw, HelpFormatter.DEFAULT_WIDTH, "terms", null, options, HelpFormatter.DEFAULT_LEFT_PAD,
HelpFormatter.DEFAULT_DESC_PAD, null, false);
return null;
}
return cmd;
}
}