Java Code Examples for org.apache.brooklyn.api.location.Location#setParent()

public boolean removeChild(Location child) {
    boolean removed;
    synchronized (children) {
        removed = children.remove(child);
    }
    if (removed) {
        if (child instanceof Closeable) {
            Streams.closeQuietly((Closeable)child);
        }
        child.setParent(null);
        
        if (isManaged() && Locations.isManaged(child)) {
            // This is called as part of child's LocalLocationManager.unmanage; don't try to 
            // unmanage it yet again as then would get a log.warn!
            getManagementContext().getLocationManager().unmanage(child);
        }
    }
    onChanged();
    return removed;
}
 

@SuppressWarnings("deprecation")
public void addChild(Location child) {
    // Previously, setParent delegated to addChildLocation and we sometimes ended up with
    // duplicate entries here. Instead this now uses a similar scheme to 
    // AbstractLocation.setParent/addChild (with any weaknesses for distribution that such a 
    // scheme might have...).
    // 
    // We continue to use a list to allow identical-looking locations, but they must be different 
    // instances.
    
    synchronized (children) {
        for (Location contender : children) {
            if (contender == child) {
                // don't re-add; no-op
                return;
            }
        }

        children.add(child);
    }
    
    if (isManaged()) {
        if (!getManagementContext().getLocationManager().isManaged(child)) {
            Locations.manage(child, getManagementContext());
        }
    } else if (getManagementContext() != null) {
        if (((LocalLocationManager)getManagementContext().getLocationManager()).getLocationEvenIfPreManaged(child.getId()) == null) {
            ((ManagementContextInternal)getManagementContext()).prePreManage(child);
        }
    }

    children.add(child);
    child.setParent(this);
    
    onChanged();
}
 

@Test
public void testSettingParentLocation() {
    Location location = createConcrete();
    Location locationSub = createConcrete();
    locationSub.setParent(location);
    
    assertEquals(ImmutableList.copyOf(location.getChildren()), ImmutableList.of(locationSub));
    assertEquals(locationSub.getParent(), location);
}
 

@Test
public void testClearingParentLocation() {
    Location location = createConcrete();
    Location locationSub = createConcrete();
    locationSub.setParent(location);
    
    locationSub.setParent(null);
    assertEquals(ImmutableList.copyOf(location.getChildren()), Collections.emptyList());
    assertEquals(locationSub.getParent(), null);
}
 

@Test
public void testContainsLocation() {
    Location location = createConcrete();
    Location locationSub = createConcrete();
    locationSub.setParent(location);
    
    assertTrue(location.containsLocation(location));
    assertTrue(location.containsLocation(locationSub));
    assertFalse(locationSub.containsLocation(location));
}
 

@Test
public void setParentLocationReturnsExpectedLocation() {
    Location parent = createConcrete(MutableMap.of("name", "Middle Earth"));
    Location child = createConcrete(MutableMap.of("name", "The Shire"));
    child.setParent(parent);
    assertEquals(child.getParent(), parent);
    assertEquals(ImmutableList.copyOf(parent.getChildren()), ImmutableList.of(child));
}