| /* |
| |
| Derby - Class org.apache.derbyTesting.functionTests.tests.memory.MultiByteClobTest |
| 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.derbyTesting.functionTests.tests.memory; |
| |
| import java.io.IOException; |
| import java.io.Reader; |
| import java.sql.PreparedStatement; |
| import java.sql.ResultSet; |
| import java.sql.SQLException; |
| import java.sql.Statement; |
| import java.util.Properties; |
| import junit.framework.Test; |
| import org.apache.derbyTesting.functionTests.util.streams.CharAlphabet; |
| import org.apache.derbyTesting.functionTests.util.streams.LoopingAlphabetReader; |
| import org.apache.derbyTesting.junit.BaseJDBCTestCase; |
| import org.apache.derbyTesting.junit.BaseTestSuite; |
| import org.apache.derbyTesting.junit.CleanDatabaseTestSetup; |
| import org.apache.derbyTesting.junit.DatabasePropertyTestSetup; |
| import org.apache.derbyTesting.junit.JDBC; |
| import org.apache.derbyTesting.junit.SystemPropertyTestSetup; |
| import org.apache.derbyTesting.junit.TestConfiguration; |
| |
| /** |
| * Test for small and larg clobs with multibyte characters. |
| */ |
| public class MultiByteClobTest extends BaseJDBCTestCase { |
| |
| private static final int LONG_CLOB_LENGTH = 9000000; |
| private static final int SHORT_CLOB_LENGTH = 100; |
| private static final String LONG_CLOB_LENGTH_STRING = "9000000"; |
| private static final String SHORT_CLOB_LENGTH_STRING = "100"; |
| |
| /** |
| * Create a test case with the given name. |
| * |
| * @param name of the test case. |
| */ |
| public MultiByteClobTest(String name) { |
| super(name); |
| } |
| |
| public void testSmallMultiByteCharLob() throws SQLException, IOException { |
| setAutoCommit(false); |
| Statement s = createStatement(); |
| |
| PreparedStatement ps = prepareStatement("INSERT INTO MB_CLOBTABLE VALUES(?,?)"); |
| // We allocate 16MB for the test so use something bigger than that. |
| ps.setInt(1,1); |
| LoopingAlphabetReader reader = new LoopingAlphabetReader(SHORT_CLOB_LENGTH, CharAlphabet.cjkSubset()); |
| |
| ps.setCharacterStream(2, reader, SHORT_CLOB_LENGTH); |
| ps.executeUpdate(); |
| |
| ResultSet rs = s.executeQuery("SELECT K, LENGTH(C), C FROM MB_CLOBTABLE" + |
| "-- DERBY-PROPERTIES constraint=pk\n ORDER BY K"); |
| rs.next(); |
| assertEquals(SHORT_CLOB_LENGTH_STRING, rs.getString(2)); |
| // make sure we can still access the clob after getting length. |
| // It should be ok because we reset the stream |
| Reader rsReader = rs.getCharacterStream(3); |
| int len= 0; |
| char[] buf = new char[32672]; |
| for (;;) { |
| int size = rsReader.read(buf); |
| if (size == -1) |
| break; |
| len += size; |
| int expectedValue = ((len -1) % 12) + '\u4E00'; |
| if (size != 0) |
| assertEquals(expectedValue,buf[size -1]); |
| } |
| assertEquals(SHORT_CLOB_LENGTH, len); |
| rs.close(); |
| // Select just length without selecting the clob. |
| rs = s.executeQuery("SELECT K, LENGTH(C) FROM MB_CLOBTABLE " + |
| "ORDER BY K"); |
| JDBC.assertFullResultSet(rs, new String [][] {{"1",SHORT_CLOB_LENGTH_STRING}}); |
| } |
| |
| public void testLargeMultiByteCharLob() throws SQLException, IOException { |
| setAutoCommit(false); |
| Statement s = createStatement(); |
| |
| PreparedStatement ps = prepareStatement("INSERT INTO MB_CLOBTABLE VALUES(?,?)"); |
| // We allocate 16MB for the test so use something bigger than that. |
| ps.setInt(1,1); |
| LoopingAlphabetReader reader = new LoopingAlphabetReader(LONG_CLOB_LENGTH, CharAlphabet.cjkSubset()); |
| |
| ps.setCharacterStream(2, reader, LONG_CLOB_LENGTH); |
| ps.executeUpdate(); |
| |
| ResultSet rs = s.executeQuery("SELECT K, LENGTH(C), C FROM MB_CLOBTABLE" + |
| "-- DERBY-PROPERTIES constraint=pk\n ORDER BY K"); |
| rs.next(); |
| assertEquals(LONG_CLOB_LENGTH_STRING, rs.getString(2)); |
| // make sure we can still access the clob after getting length. |
| // It should be ok because we reset the stream |
| Reader rsReader = rs.getCharacterStream(3); |
| int len= 0; |
| char[] buf = new char[32672]; |
| for (;;) { |
| int size = rsReader.read(buf); |
| if (size == -1) |
| break; |
| len += size; |
| int expectedValue = ((len -1) % 12) + '\u4E00'; |
| if (size != 0) |
| assertEquals(expectedValue,buf[size -1]); |
| } |
| assertEquals(LONG_CLOB_LENGTH, len); |
| rs.close(); |
| // Select just length without selecting the clob. |
| rs = s.executeQuery("SELECT K, LENGTH(C) FROM MB_CLOBTABLE " + |
| "ORDER BY K"); |
| JDBC.assertFullResultSet(rs, new String [][] {{"1",LONG_CLOB_LENGTH_STRING}}); |
| } |
| |
| /** |
| * Runs the test fixtures in embedded and client. |
| * |
| * @return test suite |
| */ |
| public static Test suite() { |
| BaseTestSuite suite = new BaseTestSuite("MultiByteClobTest"); |
| suite.addTest(baseSuite("MultiByteClobTest:embedded")); |
| suite.addTest(TestConfiguration |
| .clientServerDecorator(baseSuite("MultiByteClobTest:client"))); |
| Properties p = new Properties(); |
| // use small pageCacheSize so we don't run out of memory on the insert. |
| p.setProperty("derby.storage.pageCacheSize", "100"); |
| return new SystemPropertyTestSetup(suite,p); |
| } |
| |
| /** |
| * Base suite of tests that will run in both embedded and client. |
| * |
| * @param name name for the suite. |
| */ |
| private static Test baseSuite(String name) { |
| BaseTestSuite suite = new BaseTestSuite(name); |
| suite.addTestSuite(MultiByteClobTest.class); |
| return new CleanDatabaseTestSetup(DatabasePropertyTestSetup |
| .setLockTimeouts(suite, 2, 4)) { |
| |
| /** |
| * Creates the tables used in the test cases. |
| * |
| * @exception java.sql.SQLException |
| * if a database error occurs |
| */ |
| protected void decorateSQL(Statement stmt) throws SQLException { |
| stmt.execute("CREATE TABLE MB_CLOBTABLE " + |
| "(K INT CONSTRAINT PK PRIMARY KEY, C CLOB(" + |
| LONG_CLOB_LENGTH + "))"); |
| } |
| }; |
| } |
| } |