| /** |
| * 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 com.cloudera.sqoop.lib; |
| |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.io.Reader; |
| import java.sql.ResultSet; |
| import java.sql.SQLException; |
| |
| import com.cloudera.sqoop.testutil.BaseSqoopTestCase; |
| import com.cloudera.sqoop.testutil.CommonArgs; |
| |
| import org.apache.hadoop.conf.Configuration; |
| import org.apache.hadoop.fs.FileSystem; |
| import org.apache.hadoop.fs.Path; |
| |
| import com.cloudera.sqoop.testutil.MockResultSet; |
| import org.junit.Before; |
| import org.junit.Test; |
| |
| import static org.junit.Assert.assertEquals; |
| import static org.junit.Assert.assertFalse; |
| import static org.junit.Assert.assertNotNull; |
| import static org.junit.Assert.assertTrue; |
| |
| /** |
| * Test deserialization of ClobRef and BlobRef fields. |
| */ |
| public class TestLargeObjectLoader { |
| |
| protected Configuration conf; |
| protected LargeObjectLoader loader; |
| protected Path outDir; |
| |
| @Before |
| public void setUp() throws IOException, InterruptedException { |
| conf = new Configuration(); |
| if (!BaseSqoopTestCase.isOnPhysicalCluster()) { |
| conf.set(CommonArgs.FS_DEFAULT_NAME, CommonArgs.LOCAL_FS); |
| } |
| String tmpDir = System.getProperty("test.build.data", "/tmp/"); |
| this.outDir = new Path(System.getProperty("java.io.tmpdir")); |
| FileSystem fs = FileSystem.get(conf); |
| if (fs.exists(outDir)) { |
| fs.delete(outDir, true); |
| } |
| fs.mkdirs(outDir); |
| |
| loader = new LargeObjectLoader(conf, outDir); |
| } |
| |
| @Test |
| public void testReadClobRef() |
| throws IOException, InterruptedException, SQLException { |
| // This should give us an inline CLOB. |
| ResultSet resultSet = new MockResultSet(); |
| ClobRef clob = loader.readClobRef(0, resultSet); |
| assertNotNull(clob); |
| assertFalse(clob.isExternal()); |
| assertEquals(MockResultSet.CLOB_DATA, clob.toString()); |
| |
| // LOBs bigger than 4 bytes are now external. |
| conf.setLong(LargeObjectLoader.MAX_INLINE_LOB_LEN_KEY, 4); |
| clob = loader.readClobRef(0, resultSet); |
| assertNotNull(clob); |
| assertTrue(clob.isExternal()); |
| loader.close(); |
| Reader r = clob.getDataStream(conf, outDir); |
| char [] buf = new char[4096]; |
| int chars = r.read(buf, 0, 4096); |
| r.close(); |
| String str = new String(buf, 0, chars); |
| assertEquals(MockResultSet.CLOB_DATA, str); |
| } |
| |
| @Test |
| public void testReadBlobRef() |
| throws IOException, InterruptedException, SQLException { |
| // This should give us an inline BLOB. |
| ResultSet resultSet = new MockResultSet(); |
| BlobRef blob = loader.readBlobRef(0, resultSet); |
| assertNotNull(blob); |
| assertFalse(blob.isExternal()); |
| byte [] data = blob.getData(); |
| byte [] blobData = MockResultSet.blobData(); |
| assertEquals(blobData.length, data.length); |
| for (int i = 0; i < data.length; i++) { |
| assertEquals(blobData[i], data[i]); |
| } |
| |
| // LOBs bigger than 4 bytes are now external. |
| conf.setLong(LargeObjectLoader.MAX_INLINE_LOB_LEN_KEY, 4); |
| blob = loader.readBlobRef(0, resultSet); |
| assertNotNull(blob); |
| assertTrue(blob.isExternal()); |
| loader.close(); |
| InputStream is = blob.getDataStream(conf, outDir); |
| byte [] buf = new byte[4096]; |
| int bytes = is.read(buf, 0, 4096); |
| is.close(); |
| |
| assertEquals(blobData.length, bytes); |
| for (int i = 0; i < bytes; i++) { |
| assertEquals(blobData[i], buf[i]); |
| } |
| } |
| } |
| |