/*
* JBoss, Home of Professional Open Source.
* See the COPYRIGHT.txt file distributed with this work for information
* regarding copyright ownership. Some portions may be licensed
* to Red Hat, Inc. under one or more contributor license agreements.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
* 02110-1301 USA.
*/
package org.teiid.common.buffer;
import static org.junit.Assert.*;
import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.StringReader;
import java.nio.charset.Charset;
import java.util.Arrays;
import java.util.List;
import org.junit.Test;
import org.teiid.common.buffer.FileStore.FileStoreOutputStream;
import org.teiid.common.buffer.LobManager.ReferenceMode;
import org.teiid.core.types.BlobImpl;
import org.teiid.core.types.BlobType;
import org.teiid.core.types.ClobImpl;
import org.teiid.core.types.ClobType;
import org.teiid.core.types.DataTypeManager;
import org.teiid.core.types.InputStreamFactory;
import org.teiid.core.types.InputStreamFactory.StorageMode;
import org.teiid.core.types.Streamable;
import org.teiid.core.util.ObjectConverterUtil;
import org.teiid.core.util.ReaderInputStream;
@SuppressWarnings("nls")
public class TestLobManager {
@Test
public void testLobPeristence() throws Exception{
BufferManager buffMgr = BufferManagerFactory.getStandaloneBufferManager();
FileStore fs = buffMgr.createFileStore("temp");
ClobType clob = new ClobType(new ClobImpl(new InputStreamFactory() {
@Override
public InputStream getInputStream() throws IOException {
return new ReaderInputStream(new StringReader("Clob contents One"), Charset.forName(Streamable.ENCODING));
}
}, -1));
BlobType blob = new BlobType(new BlobImpl(new InputStreamFactory() {
@Override
public InputStream getInputStream() throws IOException {
return new ReaderInputStream(new StringReader("Blob contents Two"), Charset.forName(Streamable.ENCODING));
}
}));
BlobType blobEmpty = new BlobType(new BlobImpl(new InputStreamFactory() {
@Override
public InputStream getInputStream() throws IOException {
return new ByteArrayInputStream(new byte[0]);
}
}));
FileStore fs1 = buffMgr.createFileStore("blob");
FileStoreInputStreamFactory fsisf = new FileStoreInputStreamFactory(fs1, Streamable.ENCODING);
FileStoreOutputStream fsos = fsisf.getOuputStream();
byte[] b = new byte[DataTypeManager.MAX_LOB_MEMORY_BYTES + 1];
fsos.write(b);
fsos.close();
BlobType blob1 = new BlobType(new BlobImpl(fsisf));
assertNotNull(blob1.getReferenceStreamId());
LobManager lobManager = new LobManager(new int[] {0, 1, 2, 3}, fs);
lobManager.setMaxMemoryBytes(4);
List<?> tuple = Arrays.asList(clob, blob, blob1, blobEmpty);
lobManager.updateReferences(tuple, ReferenceMode.CREATE);
assertNotNull(blob1.getReferenceStreamId());
lobManager.persist();
Streamable<?>lob = lobManager.getLobReference(clob.getReferenceStreamId());
assertTrue(lob.getClass().isAssignableFrom(ClobType.class));
ClobType clobRead = (ClobType)lob;
assertEquals(ClobType.getString(clob), ClobType.getString(clobRead));
assertTrue(clobRead.length() != -1);
lob = lobManager.getLobReference(blob.getReferenceStreamId());
assertTrue(lob.getClass().isAssignableFrom(BlobType.class));
BlobType blobRead = (BlobType)lob;
assertTrue(Arrays.equals(ObjectConverterUtil.convertToByteArray(blob.getBinaryStream()), ObjectConverterUtil.convertToByteArray(blobRead.getBinaryStream())));
lobManager.updateReferences(tuple, ReferenceMode.REMOVE);
assertEquals(0, lobManager.getLobCount());
}
@Test public void testInlining() throws Exception{
BufferManager buffMgr = BufferManagerFactory.getStandaloneBufferManager();
FileStore fs = buffMgr.createFileStore("temp");
ClobType clob = new ClobType(new ClobImpl(new InputStreamFactory() {
@Override
public InputStream getInputStream() throws IOException {
return new ReaderInputStream(new StringReader("small"), Charset.forName(Streamable.ENCODING));
}
}, 5));
assertEquals(StorageMode.OTHER, InputStreamFactory.getStorageMode(clob));
LobManager lobManager = new LobManager(new int[] {0}, fs);
lobManager.updateReferences(Arrays.asList(clob), ReferenceMode.CREATE);
assertEquals(StorageMode.MEMORY, InputStreamFactory.getStorageMode(clob));
}
}