Example usage for org.apache.commons.pool KeyedObjectPool getNumIdle

Introduction

In this page you can find the example usage for org.apache.commons.pool KeyedObjectPool getNumIdle.

Prototype

int getNumIdle() throws UnsupportedOperationException;

Source Link

Document

Returns the total number of instances currently idle in this pool (optional operation).

Usage

From source file:edu.illinois.enforcemop.examples.apache.pool.TestBaseKeyedObjectPool.java

public void testUnsupportedOperations() throws Exception {
    if (!getClass().equals(TestBaseKeyedObjectPool.class)) {
        return; // skip redundant tests
    }//from  ww w.j  a  v  a  2  s.c o m
    KeyedObjectPool pool = new BaseKeyedObjectPool() {
        public Object borrowObject(Object key) {
            return null;
        }

        public void returnObject(Object key, Object obj) {
        }

        public void invalidateObject(Object key, Object obj) {
        }
    };

    try {
        pool.addObject("key");
        fail("Expected UnsupportedOperationException");
    } catch (UnsupportedOperationException e) {
        // expected
    }

    assertTrue("Negative expected.", pool.getNumIdle() < 0);
    assertTrue("Negative expected.", pool.getNumIdle("key") < 0);
    assertTrue("Negative expected.", pool.getNumActive() < 0);
    assertTrue("Negative expected.", pool.getNumActive("key") < 0);

    try {
        pool.clear();
        fail("Expected UnsupportedOperationException");
    } catch (UnsupportedOperationException e) {
        // expected
    }

    try {
        pool.clear("key");
        fail("Expected UnsupportedOperationException");
    } catch (UnsupportedOperationException e) {
        // expected
    }

    try {
        pool.setFactory(null);
        fail("Expected UnsupportedOperationException");
    } catch (UnsupportedOperationException e) {
        // expected
    }

    pool.close(); // a no-op, probably should be remove

}

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