Examples of org.apache.commons.pool.ObjectPool.borrowObject()

Class org.apache.commons.pool.ObjectPool

Examples of org.apache.commons.pool.ObjectPool.borrowObject()

org.apache.commons.pool.ObjectPool.borrowObject()
Obtain an instance from my pool. By contract, clients MUST return the borrowed instance using {@link #returnObject(java.lang.Object) returnObject}or a related method as defined in an implementation or sub-interface.
The behaviour of this method when the pool has been exhausted is not specified (although it may be specified by implementations). @return an instance from my pool.

    public void testMakeNull() throws Exception {
        SelectiveFactory factory = new SelectiveFactory();
        ObjectPool pool = new StackObjectPool(factory);
        factory.setMakeNull(true);
        try {
            pool.borrowObject();
            fail("Expecting NoSuchElementException");
        } catch (NoSuchElementException ex) {
            // Expected
        }
    }

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        SelectiveFactory factory = new SelectiveFactory();
        ObjectPool pool = new StackObjectPool(factory);
        pool.addObject(); // 0
        pool.addObject(); // 1
        pool.addObject(); // 2
        Integer two = (Integer) pool.borrowObject();
        assertEquals(2, two.intValue());
        pool.close();
        assertEquals(0, pool.getNumIdle());
        assertEquals(1, pool.getNumActive());
        List destroyed = factory.getDestroyed();

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            fail("Expecting IllegalStateException");
        } catch (IllegalStateException ex) {
            // Expected
        }
        try {
            pool.borrowObject();
            fail("Expecting IllegalStateException");
        } catch (IllegalStateException ex) {
            // Expected
        }
    }

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        try
        {
            if (useConnectionPool())
            {
                ObjectPool pool = getClientPool(endpoint);
                client = (SftpClient) pool.borrowObject();
            }
            else
            {
                client = SftpConnectionFactory.createClient(endpoint);
            }

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        connector.setConnectionFactoryClass(testFactory.getClass().getName());
        // no validate call for simplicity
        connector.setValidateConnections(false);


        ObjectPool pool = connector.getFtpPool(endpointURI);
        Object obj = pool.borrowObject();
        assertEquals("Custom FTP connection factory has been ignored.", testObject, obj);
    }




    /**

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            ObjectPool pool = getConnectionPool(url.substring(URL_PREFIX_LEN));
            if(null == pool) {
                throw new SQLException("No pool found for " + url + ".");
            } else {
                try {
                    return (Connection)(pool.borrowObject());
                } catch(SQLException e) {
                    throw e;
                } catch(Throwable e) {
                    throw new SQLNestedException("Connect failed", e);
                }

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        // 3, 9, 15 fail passivation.  
        assertEquals(7,pool.getNumIdle());
        assertEquals(new Integer(19), pool.borrowObject());
        assertEquals(new Integer(17), pool.borrowObject());
        assertEquals(new Integer(13), pool.borrowObject());
        assertEquals(new Integer(11), pool.borrowObject());
        assertEquals(new Integer(7), pool.borrowObject());
        assertEquals(new Integer(5), pool.borrowObject());
        assertEquals(new Integer(1), pool.borrowObject());     
    }

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        assertEquals(7,pool.getNumIdle());
        assertEquals(new Integer(19), pool.borrowObject());
        assertEquals(new Integer(17), pool.borrowObject());
        assertEquals(new Integer(13), pool.borrowObject());
        assertEquals(new Integer(11), pool.borrowObject());
        assertEquals(new Integer(7), pool.borrowObject());
        assertEquals(new Integer(5), pool.borrowObject());
        assertEquals(new Integer(1), pool.borrowObject());     
    }
    
    /**

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        assertEquals(new Integer(19), pool.borrowObject());
        assertEquals(new Integer(17), pool.borrowObject());
        assertEquals(new Integer(13), pool.borrowObject());
        assertEquals(new Integer(11), pool.borrowObject());
        assertEquals(new Integer(7), pool.borrowObject());
        assertEquals(new Integer(5), pool.borrowObject());
        assertEquals(new Integer(1), pool.borrowObject());     
    }
    
    /**
     * Verifies that validation and passivation failures returning objects are handled

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        assertEquals(new Integer(17), pool.borrowObject());
        assertEquals(new Integer(13), pool.borrowObject());
        assertEquals(new Integer(11), pool.borrowObject());
        assertEquals(new Integer(7), pool.borrowObject());
        assertEquals(new Integer(5), pool.borrowObject());
        assertEquals(new Integer(1), pool.borrowObject());     
    }
    
    /**
     * Verifies that validation and passivation failures returning objects are handled
     * properly - instances destroyed and not returned to the pool, but no exceptions propagated.

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