Examples of org.apache.jetspeed.om.page.Fragment

org.apache.jetspeed.om.page.Fragment
A Fragment is the basic element handled by the aggregation engine to compose the final portal page. It represents a reserved screen area whose layout is managed by a specified component.

The component that is responsible for the layout policy of the fragment is defined by two properties:
- type: defines the general class of layout component, enabling the engine to retrieve its exact defintion from its component repository.
- name: this is the exact name of the component. This name must be unique within a portal instance for a specific component type.
In addition to specifying the component responsible for the layout, the fragment also stores contextual information used for rendering:

Finally the fragment also holds layout and rendering properties that may be used by a parent fragment to layout all its inner fragments in an appropriate fashion. These properties are always defined for a specific named component.
@version $Id: Fragment.java,v 1.4 2005/01/11 20:01:44 weaver Exp $

    }
    
    protected int getFragmentNestingLevel(Fragment parent, int level, String fragmentId)
    {
        Iterator iter = parent.getFragments().iterator();
        Fragment child;
        int childLevel;
        while ( iter.hasNext() )
        {
            child = (Fragment)iter.next();
            if (child.getId().equals(fragmentId))
            {
                return level;
            }
            else
            {

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    protected void removeFragment(Page page, Fragment root, String fragmentId)
    {
        try
        {
            Fragment f = page.getFragmentById(fragmentId);
            if ( f == null )
            {
                // ignore no longer existing fragment error
                return;
            }

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    protected void addPortletToPage(Page page, Fragment root, String portletId)
    {
        try
        {
            Fragment fragment = pageManager.newFragment();
            fragment.setType(Fragment.PORTLET);
            fragment.setName(portletId);
            
            root.getFragments().add(fragment);
            pageManager.updatePage(page);            
        }
        catch (Exception e)

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        int idx = 0;
        while (column0.hasNext())
        {
            idx++;
            Fragment fragment = (Fragment) column0.next();
            assertEquals("f" + idx, fragment.getId());
        }


        assertEquals(3, idx);


        assertEquals(f4, column1.next());
        assertEquals(f5, column1.next());
        assertEquals(f6, column1.next());


        Fragment testFragment = layout.getFragmentAt(new LayoutCoordinate(0, 0));
        assertNotNull(testFragment);
        assertEquals(f1, testFragment);


        testFragment = layout.getFragmentAt(new LayoutCoordinate(0, 1));
        assertNotNull(testFragment);

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        // all subsequent fragments that go into the same row will push
        // the existing fragment down.
        assertEquals(f2, column0.next());
        assertEquals(f1, column0.next());


        Fragment testFragment = layout.getFragmentAt(0, 1);
        assertNotNull(testFragment);
        assertEquals(f1, testFragment);


        testFragment = layout.getFragmentAt(0, 0);
        assertNotNull(testFragment);

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        ColumnLayout layout = new ColumnLayout(3, "test", null);
        layout.addFragment(f1);
        layout.addFragment(f2);


        Fragment testFragment = layout.getFragmentAt(0, 0);
        assertNotNull(testFragment);
        assertEquals(f1, testFragment);


        testFragment = layout.getFragmentAt(2, 0);
        assertNotNull(testFragment);

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        ColumnLayout layout = new ColumnLayout(3, "test", null);
        layout.addFragment(f1);
        layout.addFragment(f2);


        Fragment testFragment = layout.getFragmentAt(0, 0);
        assertNotNull(testFragment);
        assertEquals(f1, testFragment);


        testFragment = layout.getFragmentAt(0, 1);
        assertNotNull(testFragment);

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        ColumnLayout layout = new ColumnLayout(3, "test", null);
        layout.addFragment(f1);


        // Exceeded columns just get dumped into the last column
        Fragment testFragment = layout.getFragmentAt(2, 0);
        assertNotNull(testFragment);
        assertEquals(f1, testFragment);
    }

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    }


    public void testMovingRight() throws Exception
    {


        Fragment movingFragment = layout.getFragmentAt(new LayoutCoordinate(0, 0));
        assertEquals(f1, movingFragment);
        assertEquals(f4, layout.getFragmentAt(new LayoutCoordinate(1, 0)));


        Mock listenerMock = mock(LayoutEventListener.class);
        layout.addLayoutEventListener((LayoutEventListener) listenerMock.proxy());

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        assertEquals(f6, layout.getFragmentAt(new LayoutCoordinate(1, 3)));
    }


    public void testMovingLeft() throws Exception
    {
        Fragment movingFragment = layout.getFragmentAt(new LayoutCoordinate(1, 0));
        assertEquals(f4, movingFragment);
        assertEquals(f1, layout.getFragmentAt(new LayoutCoordinate(0, 0)));
        
        Mock listenerMock = mock(LayoutEventListener.class);
        layout.addLayoutEventListener((LayoutEventListener) listenerMock.proxy());

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