package org.apache.lucene.facet.taxonomy.writercache;
import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.nio.ByteBuffer;
import java.nio.charset.CharsetDecoder;
import java.nio.charset.CodingErrorAction;
import org.apache.lucene.facet.FacetTestCase;
import org.apache.lucene.util.IOUtils;
import org.apache.lucene.util._TestUtil;
import org.junit.Test;
/*
* 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.
*/
public class TestCharBlockArray extends FacetTestCase {
@Test public void testArray() throws Exception {
CharBlockArray array = new CharBlockArray();
StringBuilder builder = new StringBuilder();
final int n = 100 * 1000;
byte[] buffer = new byte[50];
for (int i = 0; i < n; i++) {
random().nextBytes(buffer);
int size = 1 + random().nextInt(50);
// This test is turning random bytes into a string,
// this is asking for trouble.
CharsetDecoder decoder = IOUtils.CHARSET_UTF_8.newDecoder()
.onUnmappableCharacter(CodingErrorAction.REPLACE)
.onMalformedInput(CodingErrorAction.REPLACE);
String s = decoder.decode(ByteBuffer.wrap(buffer, 0, size)).toString();
array.append(s);
builder.append(s);
}
for (int i = 0; i < n; i++) {
random().nextBytes(buffer);
int size = 1 + random().nextInt(50);
// This test is turning random bytes into a string,
// this is asking for trouble.
CharsetDecoder decoder = IOUtils.CHARSET_UTF_8.newDecoder()
.onUnmappableCharacter(CodingErrorAction.REPLACE)
.onMalformedInput(CodingErrorAction.REPLACE);
String s = decoder.decode(ByteBuffer.wrap(buffer, 0, size)).toString();
array.append((CharSequence)s);
builder.append(s);
}
for (int i = 0; i < n; i++) {
random().nextBytes(buffer);
int size = 1 + random().nextInt(50);
// This test is turning random bytes into a string,
// this is asking for trouble.
CharsetDecoder decoder = IOUtils.CHARSET_UTF_8.newDecoder()
.onUnmappableCharacter(CodingErrorAction.REPLACE)
.onMalformedInput(CodingErrorAction.REPLACE);
String s = decoder.decode(ByteBuffer.wrap(buffer, 0, size)).toString();
for (int j = 0; j < s.length(); j++) {
array.append(s.charAt(j));
}
builder.append(s);
}
assertEqualsInternal("GrowingCharArray<->StringBuilder mismatch.", builder, array);
File tempDir = _TestUtil.getTempDir("growingchararray");
File f = new File(tempDir, "GrowingCharArrayTest.tmp");
BufferedOutputStream out = new BufferedOutputStream(new FileOutputStream(f));
array.flush(out);
out.flush();
out.close();
BufferedInputStream in = new BufferedInputStream(new FileInputStream(f));
array = CharBlockArray.open(in);
assertEqualsInternal("GrowingCharArray<->StringBuilder mismatch after flush/load.", builder, array);
in.close();
f.delete();
}
private static void assertEqualsInternal(String msg, StringBuilder expected, CharBlockArray actual) {
assertEquals(msg, expected.length(), actual.length());
for (int i = 0; i < expected.length(); i++) {
assertEquals(msg, expected.charAt(i), actual.charAt(i));
}
}
}