/* | |
* 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.uima.cas.impl; | |
import java.io.BufferedInputStream; | |
import java.io.BufferedOutputStream; | |
import java.io.BufferedReader; | |
import java.io.ByteArrayOutputStream; | |
import java.io.File; | |
import java.io.FileInputStream; | |
import java.io.FileOutputStream; | |
import java.io.FileReader; | |
import java.io.IOException; | |
import java.io.OutputStreamWriter; | |
import java.util.Random; | |
import java.util.concurrent.atomic.AtomicInteger; | |
import java.util.stream.DoubleStream; | |
import java.util.stream.IntStream; | |
import java.util.stream.LongStream; | |
import junit.framework.TestCase; | |
/** | |
* Serializer and Deserializer testing | |
* Common code for testing | |
* | |
* Has main method for creating resources to use in testing | |
* will update resources in SerDes4 or 6. If you do this by mistake, just revert those resources. | |
* | |
* Multi-threading: | |
* Create one instance of this class per instance of using class | |
* ** Not one instance per "setup" call ** | |
*/ | |
public abstract class SerDesTstCommon extends TestCase { | |
// FIXME need to understand why includeUid is false, seems to be disabling some testing Nov 2016 | |
private static final boolean includeUid = false; | |
private static final AtomicInteger aint = includeUid? new AtomicInteger(0) : null; | |
/** | |
* A version of Random that can pull numbers from a stream instead | |
* - useful for reproducing a previously generated set of random numbers | |
* - used when running against previously generated serialized data | |
* | |
*/ | |
class MyRandom extends Random { | |
@Override | |
public int nextInt(int n) { | |
int r = usePrevData ? readNextSavedInt() : super.nextInt(n); | |
if (capture) writeSavedInt(r); | |
if (r >= n) { | |
throw new RuntimeException("Internal error - using prev value, max is " + n + ", val read was " + r); | |
} | |
return r; | |
} | |
@Override | |
public int nextInt() { | |
int r = usePrevData ? readNextSavedInt() : super.nextInt(); | |
if (capture) writeSavedInt(r); | |
return r; | |
} | |
@Override | |
public long nextLong() { | |
int r = usePrevData ? readNextSavedInt() : super.nextInt(); | |
if (capture) writeSavedInt(r); | |
return r; | |
} | |
@Override | |
public boolean nextBoolean() { | |
int r = usePrevData ? readNextSavedInt() : super.nextInt(2); | |
if (capture) writeSavedInt(r); | |
return r == 0; | |
} | |
@Override | |
public float nextFloat() { | |
int r = usePrevData ? readNextSavedInt() : super.nextInt(0x7ffff); | |
if (capture) writeSavedInt(r); | |
return Float.intBitsToFloat(r); | |
} | |
@Override | |
public double nextDouble() { | |
int r = usePrevData ? readNextSavedInt() : super.nextInt(0x7ffff); | |
if (capture) writeSavedInt(r); | |
return CASImpl.long2double((long) r); | |
} | |
@Override | |
protected int next(int bits) { | |
if (usePrevData) { | |
throw new RuntimeException("invalid - never called"); | |
} | |
return super.next(bits); | |
} | |
} | |
// Create a random number generator to use for random seeds | |
// one per thread (one per class instance) | |
private final Random randomseed = new Random(); | |
{ long seed = randomseed.nextLong(); | |
// long seed = 1_449_257_605_347_913_923L; // to set a specific seed | |
randomseed.setSeed(seed); | |
System.out.format("SerDesTstCommon Initial RandomSeed: %,d%n", seed); | |
} | |
/** | |
* The random number generator - used throughout. | |
* Can return a pre-computed stream of random numbers if usePrevData is true | |
* Can save the stream of random numbers if capture is true | |
* | |
*/ | |
protected final Random random = new MyRandom(); | |
{ random.setSeed(randomseed.nextLong()); } | |
/** set to true to change FS creation to keep references to all created FS | |
* needed for testing backward compatibility with delta cas | |
* Done by adding to indexes FSs which otherwise would be lost | |
*/ | |
protected boolean isKeep = false; | |
// saving random numbers | |
protected BufferedReader savedIntsStream; | |
protected OutputStreamWriter savedIntsOutStream; | |
private int savedIntSeq = 0; // useful in debug mode | |
protected boolean capture = false; // capture the serialized output | |
protected boolean usePrevData = false; | |
protected boolean doPlain = false; | |
protected void writeout(ByteArrayOutputStream baos, String fname) throws IOException { | |
if (null == fname) { | |
return; | |
} | |
BufferedOutputStream fos = setupFileOut(fname); | |
fos.write(baos.toByteArray()); | |
fos.close(); | |
} | |
// read and create byte array to use as | |
// test data for checking previously serialized | |
protected byte[] readIn(String fname) throws IOException { | |
File f = new File("src/test/resources/" + getTestRootName() + "/" + fname + ".binary"); | |
int len = (int) f.length(); | |
byte[] buffer = new byte[len]; | |
BufferedInputStream inStream = | |
new BufferedInputStream( | |
new FileInputStream(f)); | |
int br = inStream.read(buffer); | |
if (br != len) { | |
throw new RuntimeException("Corrupted test saved ints stream"); | |
} | |
inStream.close(); | |
return buffer; | |
} | |
protected abstract String getTestRootName(); | |
private BufferedOutputStream setupFileOut(String fname) throws IOException { | |
if (null == fname) { | |
return null; | |
} | |
File dir = new File("src/test/resources/" + getTestRootName() + "/"); | |
if (!dir.exists()) { | |
dir.mkdirs(); | |
} | |
System.out.println("debug out file name is " + fname); | |
return | |
new BufferedOutputStream( | |
new FileOutputStream( | |
new File("src/test/resources/" + getTestRootName() + "/" + fname + ".binary"))); | |
} | |
protected void initWriteSavedInts() { | |
try { | |
savedIntsOutStream = new OutputStreamWriter(setupFileOut("SavedInts")); | |
} catch (IOException e) { | |
throw new RuntimeException(e); | |
} | |
} | |
protected void initReadSavedInts() { | |
try { | |
savedIntsStream = new BufferedReader(new FileReader("src/test/resources/" + getTestRootName() + "/SavedInts.binary")); | |
savedIntSeq = 0; | |
} catch (IOException e) { | |
throw new RuntimeException(e); | |
} | |
} | |
private void writeSavedInt(int i) { | |
try { | |
savedIntsOutStream.write(Integer.toString(i) + '\n'); | |
} catch (IOException e) { | |
throw new RuntimeException(e); | |
} | |
} | |
private int readNextSavedInt() { | |
try { | |
String s = savedIntsStream.readLine(); | |
// System.out.println("debug savedInt " + savedIntSeq++ + ", value " + s); | |
return Integer.parseInt(s); | |
} catch (IOException e) { | |
throw new RuntimeException(e); | |
} | |
} | |
} |