Examples of org.apache.avalon.framework.service.ServiceSelector

Package org.apache.avalon.framework.service

Examples of org.apache.avalon.framework.service.ServiceSelector

org.apache.avalon.framework.service.ServiceSelector
A ServiceSelector selects {@link Object}s based on a supplied policy. The contract is that all the {@link Object}s implement the same role. @author Avalon Development Team @version CVS $Revision: 1.16 $ $Date: 2004/02/11 14:34:25 $ @see org.apache.avalon.framework.service.Serviceable @see org.apache.avalon.framework.service.ServiceSelector

     */
    protected void storeKeyValue( Configuration tableConf, Column key, int rowIndex, Connection conn,
                                  Statement statement, Map objectModel, String outputMode, Map results )
        throws SQLException, ConfigurationException, ServiceException {


            ServiceSelector autoincrSelector = null;
        AutoIncrementModule autoincr = null;
        try {
            autoincrSelector=(ServiceSelector) this.manager.lookup(DATABASE_MODULE_SELECTOR);
            if (key.mode != null && autoincrSelector != null && autoincrSelector.isSelectable(key.mode)){
                autoincr = (AutoIncrementModule) autoincrSelector.select(key.mode);
            }


            if (!autoincr.includeAsValue()) {
                Object value = autoincr.getPostValue( tableConf, key.columnConf, key.modeConf, conn, statement, objectModel );
                this.setOutput(objectModel, outputMode, results, tableConf, key.columnConf, rowIndex, value);
            }


        } finally {
            if (autoincrSelector != null) {
                if (autoincr != null)
                    autoincrSelector.release(autoincr);
                this.manager.release(autoincrSelector);
            }
         }


    }

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                        queryBuffer.append( ", " );
                        valueBuffer.append( ", " );
                    }
                    if ( queryData.columns[i].isKey && queryData.columns[i].isAutoIncrement ) {


                        ServiceSelector autoincrSelector = null;
                        AutoIncrementModule autoincr = null;
                        try {
                            autoincrSelector = (ServiceSelector) this.manager.lookup(DATABASE_MODULE_SELECTOR); 
                            if (queryData.columns[i].mode != null && 
                                autoincrSelector != null && 
                                autoincrSelector.isSelectable(queryData.columns[i].mode)){
                                autoincr = (AutoIncrementModule) autoincrSelector.select(queryData.columns[i].mode);
                                
                                if ( autoincr.includeInQuery() ) {
                                    actualColumns++;
                                    queryBuffer.append( queryData.columns[i].columnConf.getAttribute( "name" ) );
                                    if ( autoincr.includeAsValue() ) {
                                        valueBuffer.append( "?" );
                                    } else {
                                        valueBuffer.append(
                                                           autoincr.getSubquery( table, queryData.columns[i].columnConf,
                                                                                 queryData.columns[i].modeConf ) );
                                    }
                                }
                            } else {
                                if (getLogger().isErrorEnabled())
                                    getLogger().error("Could not find mode description " 
                                                      + queryData.columns[i].mode + " for column #"+i);
                                if (getLogger().isDebugEnabled()) {
                                    getLogger().debug("Column data "+queryData.columns[i]);
                                }
                                throw new ConfigurationException("Could not find mode description "+queryData.columns[i].mode+" for column "+i);
                            }
                            
                        } finally {
                            if (autoincrSelector != null) {
                                if (autoincr != null) 
                                    autoincrSelector.release(autoincr);
                                this.manager.release(autoincrSelector);
                            }
                        }


                    } else {

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        widget.service(this.serviceManager);


        Element selectionListElement = DomHelper.getChildElement(widgetElement, Constants.WD_NS, "selection-list");
        if (selectionListElement != null) {
            // Get an appropriate list builder
            ServiceSelector builderSelector = (ServiceSelector)this.serviceManager.lookup(SelectionListBuilder.ROLE + "Selector");
            SelectionListBuilder builder = null;
            try {
                // listType can be null, meaning we will use the default selection list
                String listType = selectionListElement.getAttribute("type");
                if ("".equals(listType)) {
                    listType = null;
                }


                builder = (SelectionListBuilder)builderSelector.select(listType);
                SelectionList list = builder.build(selectionListElement, widget.getDatatype());
                widget.setSelectionList(list);
            } finally {
                if (builder != null) {
                    builderSelector.release(builder);
                }
                this.serviceManager.release(builderSelector);
            }


            return true;

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        super.configure(configuration);
        m_datasourceName = configuration.getChild("datasource",true).getValue("cocoondb");
    }
    
    public void initialize() throws Exception {
        ServiceSelector datasources = (ServiceSelector) m_manager.lookup(
            DataSourceComponent.ROLE + "Selector");
        m_datasource = (DataSourceComponent) datasources.select(m_datasourceName);
    }

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        widget.service(this.serviceManager);


        Element selectionListElement = DomHelper.getChildElement(widgetElement, Constants.DEFINITION_NS, "selection-list");
        if (selectionListElement != null) {
            // Get an appropriate list builder
            ServiceSelector builderSelector = (ServiceSelector)this.serviceManager.lookup(SelectionListBuilder.ROLE + "Selector");
            SelectionListBuilder builder = null;
            try {
                // listType can be null, meaning we will use the default selection list
                String listType = selectionListElement.getAttribute("type");
                if ("".equals(listType)) {
                    listType = null;
                }


                builder = (SelectionListBuilder)builderSelector.select(listType);
                SelectionList list = builder.build(selectionListElement, widget.getDatatype());
                widget.setSelectionList(list);
            } finally {
                if (builder != null) {
                    builderSelector.release(builder);
                }
                this.serviceManager.release(builderSelector);
            }


            return true;

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   * @see org.apache.excalibur.source.Source#getInputStream()
   */
  public InputStream getInputStream() throws IOException, SourceNotFoundException {
        try {
            ServiceManager sitemapManager = (ServiceManager) this.context.get(ContextHelper.CONTEXT_SITEMAP_SERVICE_MANAGER);
            ServiceSelector serializerSelector = null;
            Serializer serializer = null;
            try {
                serializerSelector = (ServiceSelector) sitemapManager.lookup(Serializer.ROLE+"Selector");
                serializer = (Serializer) serializerSelector.select("xml");
                ByteArrayOutputStream os = new ByteArrayOutputStream();
                serializer.setOutputStream(os);
                this.toSAX(serializer);
                return new ByteArrayInputStream(os.toByteArray());
            } catch (SAXException se) {
                throw new CascadingIOException("Unable to stream content.", se);
            } catch (ServiceException ce) {
                throw new CascadingIOException("Unable to get components for serializing.", ce);
            } finally {
                if ( serializer != null ) {
                    serializerSelector.release(serializer);
                }
                sitemapManager.release(serializerSelector);
            }
        } catch (ContextException ce) {
            throw new CascadingIOException("Unable to get service manager.", ce);

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  /**
   * @see org.apache.excalibur.xml.sax.XMLizable#toSAX(ContentHandler)
   */
  public void toSAX(ContentHandler handler) 
    throws SAXException {
        ServiceSelector copletAdapterSelector = null;
        CopletAdapter copletAdapter = null;
        try {
            copletAdapterSelector = (ServiceSelector)this.manager.lookup(CopletAdapter.ROLE+"Selector");
            copletAdapter = (CopletAdapter)copletAdapterSelector.select(this.copletControllerName);
            
            copletAdapter.toSAX(this.copletInstanceData, handler);
        } catch (ServiceException ce) {
            throw new SAXException("Unable to lookup coplet adaptor or adaptor selector.", ce);
        } finally {
            if ( null != copletAdapter ) {
                 copletAdapterSelector.release( copletAdapter );
            }
            this.manager.release(copletAdapterSelector);
        }
            
  }

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            DocumentFactory map = document.getFactory();
            SiteStructure liveSite = publication.getArea(Publication.LIVE_AREA).getSite();


            List missingDocuments = new ArrayList();


            ServiceSelector selector = null;
            SiteManager siteManager = null;
            try {
                selector = (ServiceSelector) this.manager.lookup(SiteManager.ROLE + "Selector");
                siteManager = (SiteManager) selector.select(publication.getSiteManagerHint());


                if (!liveSite.contains(document.getPath())) {
                    DocumentLocator liveLoc = document.getLocator().getAreaVersion(
                            Publication.LIVE_AREA);
                    DocumentLocator[] requiredNodes = siteManager
                            .getRequiredResources(map, liveLoc);
                    for (int i = 0; i < requiredNodes.length; i++) {
                        String path = requiredNodes[i].getPath();
                        if (!liveSite.contains(path)) {
                            Link link = getExistingLink(path, document);
                            if (link != null) {
                                missingDocuments.add(link.getDocument());
                            }
                        }


                    }
                }
            } catch (Exception e) {
                throw new RuntimeException(e);
            } finally {
                if (selector != null) {
                    if (siteManager != null) {
                        selector.release(siteManager);
                    }
                    this.manager.release(selector);
                }
            }

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     * @throws ProcessingException
     */
    protected void generateFragmentInitial(String siteArea) throws SiteException, SAXException,
            ProcessingException {
        
        ServiceSelector selector = null;
        SiteManager siteManager = null;
        try {
            selector = (ServiceSelector) this.manager.lookup(SiteManager.ROLE + "Selector");
            siteManager = (SiteManager) selector.select(this.publication.getSiteManagerHint());
            SiteStructure siteTree = this.publication.getArea(siteArea).getSite();


            String label = "";
            String isFolder = "";


            // FIXME: don't hardcode area label
            if (siteArea.equals(Publication.AUTHORING_AREA))
                label = "Authoring";
            if (siteArea.equals(Publication.ARCHIVE_AREA))
                label = "Archive";
            if (siteArea.equals(Publication.TRASH_AREA))
                label = "Trash";
            if (siteArea.equals(Publication.LIVE_AREA))
                label = "Live";
            if (siteArea.equals(Publication.STAGING_AREA))
                label = "Staging";


            if (siteTree.getTopLevelNodes().length > 0)
                isFolder = "true";
            else
                isFolder = "false";


            this.attributes.clear();
            this.attributes.addAttribute("", ATTR_AREA, ATTR_AREA, "CDATA", siteArea);
            this.attributes.addAttribute("", ATTR_FOLDER, ATTR_FOLDER, "CDATA", isFolder);
            this.attributes.addAttribute("", ATTR_LABEL, ATTR_LABEL, "CDATA", label);


            startNode(NODE_SITE);


            if (this.area.equals(siteArea)) {
                generateFragmentRecursive(siteTree.getTopLevelNodes(), this.path);
            }


            endNode(NODE_SITE);
        } catch (Exception e) {
            throw new ProcessingException(e);
        } finally {
            if (selector != null) {
                if (siteManager != null) {
                    selector.release(siteManager);
                }
                this.manager.release(selector);
            }
        }
    }

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    private DocumentBuilder documentBuilder;
    
    public DocumentBuilder getDocumentBuilder() {
        if (this.documentBuilder == null) {
            ServiceSelector selector = null;
            try {
                selector = (ServiceSelector) this.manager.lookup(DocumentBuilder.ROLE + "Selector");
                this.documentBuilder = (DocumentBuilder) selector.select(delegate.getDocumentBuilderHint());
            } catch (Exception e) {
                throw new RuntimeException(e);
            }
        }
        return this.documentBuilder;

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