/**
* 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.camel.util;
import java.io.ByteArrayInputStream;
import java.nio.charset.Charset;
import java.nio.charset.StandardCharsets;
import java.util.Scanner;
import org.apache.camel.CamelContext;
import org.apache.camel.Exchange;
import org.apache.camel.TestSupport;
import org.apache.camel.impl.DefaultCamelContext;
import org.apache.camel.impl.DefaultExchange;
/**
*
*/
public class GroupIteratorTest extends TestSupport {
private CamelContext context;
private Exchange exchange;
@Override
public void setUp() throws Exception {
super.setUp();
context = new DefaultCamelContext();
context.start();
exchange = new DefaultExchange(context);
}
@Override
public void tearDown() throws Exception {
context.stop();
super.tearDown();
}
public void testGroupIterator() throws Exception {
String s = "ABC\nDEF\nGHI\nJKL\nMNO\nPQR\nSTU\nVW";
Scanner scanner = new Scanner(s);
scanner.useDelimiter("\n");
GroupIterator gi = new GroupIterator(exchange, scanner, "\n", 3);
assertTrue(gi.hasNext());
assertEquals("ABC\nDEF\nGHI", gi.next());
assertEquals("JKL\nMNO\nPQR", gi.next());
assertEquals("STU\nVW", gi.next());
assertFalse(gi.hasNext());
IOHelper.close(gi);
}
public void testGroupIteratorWithDifferentEncodingFromDefault() throws Exception {
if (Charset.defaultCharset() == StandardCharsets.UTF_8) {
// can't think of test case where having default charset set to UTF-8 is affected
return;
}
byte[] buf = "\u00A31\n\u00A32\n".getBytes(StandardCharsets.UTF_8);
ByteArrayInputStream in = new ByteArrayInputStream(buf);
Scanner scanner = new Scanner(in, StandardCharsets.UTF_8.displayName());
scanner.useDelimiter("\n");
exchange.setProperty(Exchange.CHARSET_NAME, StandardCharsets.UTF_8.displayName());
GroupIterator gi = new GroupIterator(exchange, scanner, "\n", 1);
assertTrue(gi.hasNext());
assertEquals("\u00A31", gi.next());
assertEquals("\u00A32", gi.next());
assertFalse(gi.hasNext());
IOHelper.close(gi);
}
}