Examples of org.geotools.data.simple.SimpleFeatureLocking

org.geotools.data.simple.SimpleFeatureLocking
Used to lock feature content to protect against other threads (or depending on the source of data other applications) making modifications when you are not looking.
The locks operate more as a lease for a specific period of time. In effect you are only locking for a set time period; so even if your application or machine crashes the lock will eventually be released allowing others to play. @source $URL$

        assertEquals(1, fl2.lockFeatures(fidFilter));
    }
    
    @Test
    public void testLockUnlockQuery() throws Exception {
        SimpleFeatureLocking fl;
        fl = (SimpleFeatureLocking) rts.getFeatureSource(RENAMED);
        final FeatureLock lock = FeatureLockFactory.generate(10 * 60 * 1000);
        Transaction t = new DefaultTransaction();
        t.addAuthorization(lock.getAuthorization());
        fl.setTransaction(t);
        fl.setFeatureLock(lock);


        SimpleFeatureLocking fl2;
        fl2 = (SimpleFeatureLocking) rts.getFeatureSource(RENAMED);
        fl.setFeatureLock(lock);
        fl2.setTransaction(new DefaultTransaction());


        Query q = new Query(RENAMED, fidFilter);
        assertEquals(1, fl.lockFeatures(q));
        assertEquals(0, fl2.lockFeatures(q));


        fl.unLockFeatures(q);
        assertEquals(1, fl2.lockFeatures(q));
    }

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        String id = ((FeatureId) ids.iterator().next()).getID();
        assertTrue("Id does not start with " + "oaks" + " it's " + id, id.startsWith("oaks"));
    }


    public void testLockUnlockFilter() throws Exception {
        SimpleFeatureLocking fl;
        fl = (SimpleFeatureLocking) rts.getFeatureSource(RENAMED);
        final FeatureLock lock = FeatureLockFactory.generate(10 * 60 * 1000);
        Transaction t = new DefaultTransaction();
        t.addAuthorization(lock.getAuthorization());
        fl.setTransaction(t);
        fl.setFeatureLock(lock);


        SimpleFeatureLocking fl2;
        fl2 = (SimpleFeatureLocking) rts.getFeatureSource(RENAMED);
        fl.setFeatureLock(lock);
        fl2.setTransaction(new DefaultTransaction());


        assertEquals(1, fl.lockFeatures(fidFilter));
        assertEquals(0, fl2.lockFeatures(fidFilter));


        fl.unLockFeatures(fidFilter);
        assertEquals(1, fl2.lockFeatures(fidFilter));
    }

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        fl.unLockFeatures(fidFilter);
        assertEquals(1, fl2.lockFeatures(fidFilter));
    }
    
    public void testLockUnlockQuery() throws Exception {
        SimpleFeatureLocking fl;
        fl = (SimpleFeatureLocking) rts.getFeatureSource(RENAMED);
        final FeatureLock lock = FeatureLockFactory.generate(10 * 60 * 1000);
        Transaction t = new DefaultTransaction();
        t.addAuthorization(lock.getAuthorization());
        fl.setTransaction(t);
        fl.setFeatureLock(lock);


        SimpleFeatureLocking fl2;
        fl2 = (SimpleFeatureLocking) rts.getFeatureSource(RENAMED);
        fl.setFeatureLock(lock);
        fl2.setTransaction(new DefaultTransaction());


        Query q = new Query(RENAMED, fidFilter);
        assertEquals(1, fl.lockFeatures(q));
        assertEquals(0, fl2.lockFeatures(q));


        fl.unLockFeatures(q);
        assertEquals(1, fl2.lockFeatures(q));
    }

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        String id = ((FeatureId) ids.iterator().next()).getID();
        assertTrue("Id does not start with " + "oaks" + " it's " + id, id.startsWith("oaks"));
    }


    public void testLockUnlockFilter() throws Exception {
        SimpleFeatureLocking fl;
        fl = (SimpleFeatureLocking) rts.getFeatureSource(RENAMED);
        final FeatureLock lock = FeatureLockFactory.generate(10 * 60 * 1000);
        Transaction t = new DefaultTransaction();
        t.addAuthorization(lock.getAuthorization());
        fl.setTransaction(t);
        fl.setFeatureLock(lock);


        SimpleFeatureLocking fl2;
        fl2 = (SimpleFeatureLocking) rts.getFeatureSource(RENAMED);
        fl.setFeatureLock(lock);
        fl2.setTransaction(new DefaultTransaction());


        assertEquals(1, fl.lockFeatures(fidFilter));
        assertEquals(0, fl2.lockFeatures(fidFilter));


        fl.unLockFeatures(fidFilter);
        assertEquals(1, fl2.lockFeatures(fidFilter));
    }

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        fl.unLockFeatures(fidFilter);
        assertEquals(1, fl2.lockFeatures(fidFilter));
    }
    
    public void testLockUnlockQuery() throws Exception {
        SimpleFeatureLocking fl;
        fl = (SimpleFeatureLocking) rts.getFeatureSource(RENAMED);
        final FeatureLock lock = FeatureLockFactory.generate(10 * 60 * 1000);
        Transaction t = new DefaultTransaction();
        t.addAuthorization(lock.getAuthorization());
        fl.setTransaction(t);
        fl.setFeatureLock(lock);


        SimpleFeatureLocking fl2;
        fl2 = (SimpleFeatureLocking) rts.getFeatureSource(RENAMED);
        fl.setFeatureLock(lock);
        fl2.setTransaction(new DefaultTransaction());


        Query q = new Query(RENAMED, fidFilter);
        assertEquals(1, fl.lockFeatures(q));
        assertEquals(0, fl2.lockFeatures(q));


        fl.unLockFeatures(q);
        assertEquals(1, fl2.lockFeatures(q));
    }

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