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 $


        while (f != null)
        {
            if (f instanceof Fragment)
            {
                Fragment fragment = (Fragment)f;
                if ((fragment.getName() != null) && fragment.getName().equals(name))
                {
                    fragments.add(fragment);
                }


                Iterator i = fragment.getFragments().iterator();


                while (i.hasNext())
                {
                    stack.push(i.next());
                }

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                fragments.add(f);
            }


            if (f instanceof Fragment)
            {
                Fragment fragment = (Fragment)f;
                Iterator i = fragment.getFragments().iterator();


                while (i.hasNext())
                {
                    stack.push(i.next());
                }

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            BaseFragmentElement rootFragment = pageOrTemplate.getRootFragment();
            if (!(rootFragment instanceof Fragment))
            {
                throw new IllegalArgumentException("New fragment cannot be added to page root fragment");                
            }
            Fragment fragment = (Fragment)rootFragment;
            if (!Fragment.LAYOUT.equals(fragment.getType()))
            {
                throw new IllegalArgumentException("New fragment cannot be added to non-layout page root fragment");                
            }
            
            // check for edit permission
            fragment.checkAccess(JetspeedActions.EDIT);
            
            // create fragment and add to layout root fragment
            Fragment newFragment = pageManager.newFragment();
            newFragment.setType(contentFragment.getType());
            newFragment.setName(contentFragment.getName());
            if (!Utils.isNull(row))
            {
                newFragment.setLayoutRow(row);
            }
            if (!Utils.isNull(column))
            {
                newFragment.setLayoutColumn(column);
            }
            fragment.getFragments().add(newFragment);


            // update page in page manager
            updatePage(pageOrTemplate);

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            BaseFragmentElement parentFragment = pageOrTemplate.getFragmentById(contentFragmentImpl.getFragment().getId());
            if (!(parentFragment instanceof Fragment))
            {
                throw new IllegalArgumentException("New fragment cannot be added to parent fragment");
            }
            Fragment fragment = (Fragment)parentFragment;
            if (!Fragment.LAYOUT.equals(fragment.getType()))
            {
                throw new IllegalArgumentException("New fragment cannot be added to non-layout parent fragment");                
            }
            
            // check for edit permission
            fragment.checkAccess(JetspeedActions.EDIT);


            // create fragment reference and add to layout fragment
            FragmentReference newFragmentReference = pageManager.newFragmentReference();
            newFragmentReference.setRefId(id);
            if (!Utils.isNull(row))
            {
                newFragmentReference.setLayoutRow(row);
            }
            if (!Utils.isNull(column))
            {
                newFragmentReference.setLayoutColumn(column);
            }
            fragment.getFragments().add(newFragmentReference);


            // update page in page manager
            updatePage(pageOrTemplate);


            // update content context

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            BaseFragmentElement rootFragment = pageOrTemplate.getRootFragment();
            if (!(rootFragment instanceof Fragment))
            {
                throw new IllegalArgumentException("New Fragment cannot be added to page root fragment");                
            }
            Fragment fragment = (Fragment)rootFragment;
            if (!Fragment.LAYOUT.equals(fragment.getType()))
            {
                throw new IllegalArgumentException("New Fragment cannot be added to non-layout page root fragment");                
            }


            // check for edit permission
            fragment.checkAccess(JetspeedActions.EDIT);
            
            // create fragment reference and add to layout root fragment
            FragmentReference newFragmentReference = pageManager.newFragmentReference();
            newFragmentReference.setRefId(id);
            fragment.getFragments().add(newFragmentReference);


            // update page in page manager
            updatePage(pageOrTemplate);


            // update content page context

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            BaseFragmentElement parentFragment = pageOrTemplate.getFragmentById(contentFragmentImpl.getFragment().getId());
            if (!(parentFragment instanceof Fragment))
            {
                throw new IllegalArgumentException("New fragment cannot be added to parent fragment");                
            }
            Fragment fragment = (Fragment)parentFragment;
            if (!Fragment.LAYOUT.equals(fragment.getType()))
            {
                throw new IllegalArgumentException("New fragment cannot be added to non-layout parent fragment");                
            }
            
            // check for edit permission
            fragment.checkAccess(JetspeedActions.EDIT);


            // create fragment and add to layout fragment
            Fragment newFragment = pageManager.newFragment();
            newFragment.setType(type);
            newFragment.setName(name);
            if (!Utils.isNull(row))
            {
                newFragment.setLayoutRow(row);
            }
            if (!Utils.isNull(column))
            {
                newFragment.setLayoutColumn(column);
            }
            fragment.getFragments().add(newFragment);


            // update page in page manager
            updatePage(pageOrTemplate);

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            BaseFragmentElement rootFragment = pageOrTemplate.getRootFragment();
            if (!(rootFragment instanceof Fragment))
            {
                throw new IllegalArgumentException("New Fragment cannot be added to page root fragment");                
            }
            Fragment fragment = (Fragment)rootFragment;
            if (!Fragment.LAYOUT.equals(fragment.getType()))
            {
                throw new IllegalArgumentException("New Fragment cannot be added to non-layout page root fragment");                
            }


            // check for edit permission
            fragment.checkAccess(JetspeedActions.EDIT);
            
            // create fragment and add to layout root fragment
            Fragment newFragment = pageManager.newFragment();
            newFragment.setType(type);
            newFragment.setName(name);
            fragment.getFragments().add(newFragment);


            // update page in page manager
            updatePage(pageOrTemplate);

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            BaseFragmentElement fromFragmentElement = pageOrTemplate.getFragmentById(fromContentFragmentImpl.getFragment().getId());
            if (!(fromFragmentElement instanceof Fragment))
            {
                throw new IllegalArgumentException("Move from fragmentId and page not consistent");
            }
            Fragment fromFragment = (Fragment)fromFragmentElement;
            String pageFragmentId = (contentFragmentIsReference ? contentFragmentImpl.getReference().getId() : contentFragmentImpl.getFragment().getId());
            BaseFragmentElement fragment = fromFragment.getFragmentById(pageFragmentId);
            if (fragment == null)
            {
                throw new IllegalArgumentException("Move fragmentId and page not consistent");                
            }
            BaseFragmentElement toFragmentElement = pageOrTemplate.getFragmentById(toContentFragmentImpl.getFragment().getId());
            if (!(toFragmentElement instanceof Fragment))
            {
                throw new IllegalArgumentException("Move to fragmentId and page not consistent");
            }
            Fragment toFragment = (Fragment)toFragmentElement;


            // check for edit permission
            pageOrTemplate.checkAccess(JetspeedActions.EDIT);


            // move page fragment and update page in page manager
            fragment = fromFragment.removeFragmentById(fragment.getId());
            toFragment.getFragments().add(fragment);
            updatePage(pageOrTemplate);


            // update content context
            fromContentFragmentImpl.removeFragmentById(fragmentId);
            toContentFragmentImpl.getFragments().add(contentFragmentImpl);

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                throw new IllegalArgumentException("Page template "+newPageTemplatePath+" exists");
            }
            PageTemplate newPageTemplate = pageManager.newPageTemplate(newPageTemplatePath);
            if (newPageTemplate.getRootFragment() instanceof Fragment)
            {
                Fragment rootFragment = (Fragment)newPageTemplate.getRootFragment();
                if (!Utils.isNull(layoutName))
                {
                    rootFragment.setName(layoutName);
                }
                rootFragment.getFragments().add(pageManager.newPageFragment());
            }
            if (!Utils.isNull(templateTitle))
            {
                newPageTemplate.setTitle(templateTitle);
            }

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                throw new IllegalArgumentException("PageTemplate "+newFragmentDefinitionPath+" exists");
            }
            FragmentDefinition newFragmentDefinition = pageManager.newFragmentDefinition(newFragmentDefinitionPath);
            if (newFragmentDefinition.getRootFragment() instanceof Fragment)
            {
                Fragment rootFragment = (Fragment)newFragmentDefinition.getRootFragment();                
                if (!Utils.isNull(defId))
                {
                    rootFragment.setId(defId);
                }
                if (!Utils.isNull(portletName))
                {
                    rootFragment.setType(Fragment.PORTLET);
                    rootFragment.setName(portletName);
                }
            }
            if (!Utils.isNull(definitionTitle))
            {
                newFragmentDefinition.setTitle(definitionTitle);

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