Package org.teiid.core.types

Source Code of org.teiid.core.types.TestClobValue

/*
* 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.core.types;

import static org.junit.Assert.*;

import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.io.Reader;

import javax.sql.rowset.serial.SerialClob;

import org.junit.Test;
import org.teiid.core.util.UnitTestUtil;

@SuppressWarnings("nls")
public class TestClobValue {

    @Test public void testClobValue() throws Exception {
        String testString = "this is test clob"; //$NON-NLS-1$
        SerialClob clob = new SerialClob(testString.toCharArray());
       
        ClobType cv = new ClobType(clob);
        assertEquals(testString, cv.getSubString(1L, (int)cv.length()));
    }
   
    @Test public void testClobValuePersistence() throws Exception {
        String testString = "this is test clob"; //$NON-NLS-1$
        SerialClob clob = new SerialClob(testString.toCharArray());
       
        ClobType cv = new ClobType(clob);
        String key = cv.getReferenceStreamId();
       
        // now force to serialize
        File saved = new File(UnitTestUtil.getTestScratchPath()+"/clobassaved.bin"); //$NON-NLS-1$
        ObjectOutputStream out = new ObjectOutputStream(new FileOutputStream(saved));
        out.writeObject(cv);
        out.close();
       
        // now read back the object from serilized state
        ObjectInputStream in = new ObjectInputStream(new FileInputStream(saved));
        ClobType read = (ClobType)in.readObject();
       
        assertTrue(read.length() > 0);
               
        // make sure we have kept the reference stream id
        assertEquals(key, read.getReferenceStreamId());
       
        // and lost the original object
        assertNull(read.getReference());
       
        saved.delete();
    }
   
    @Test public void testClobSubstring() throws Exception {
      ClobImpl clob = new ClobImpl() {
        public java.io.Reader getCharacterStream() throws java.sql.SQLException {
          return new Reader() {

            int pos = 0;
           
          @Override
          public void close() throws IOException {
           
          }

          @Override
          public int read(char[] cbuf, int off, int len)
              throws IOException {
            if (pos < 2) {
              cbuf[off] = 'a';
              pos++;
              return 1;
            }
            return -1;
          }
          };
        }
      };
      assertEquals("aa", clob.getSubString(1, 3));
    }
   
}
TOP

Related Classes of org.teiid.core.types.TestClobValue

TOP
Copyright © 2018 www.massapi.com. All rights reserved.
All source code are property of their respective owners. Java is a trademark of Sun Microsystems, Inc and owned by ORACLE Inc. Contact coftware#gmail.com.