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package net.sf.flock.webapp.components;
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import java.net.URL;
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import java.util.ArrayList;
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import java.util.List;
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import net.sf.tapestry.ApplicationRuntimeException;
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import net.sf.tapestry.BaseComponent;
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import net.sf.tapestry.ComponentAddress;
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import net.sf.tapestry.IRender;
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import net.sf.tapestry.IRequestCycle;
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import net.sf.tapestry.RequestCycleException;
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import net.sf.tapestry.components.Block;
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import net.sf.tapestry.components.BlockRenderer;
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import net.sf.tapestry.contrib.table.model.ITableColumn;
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import net.sf.tapestry.contrib.table.model.ITableColumnModel;
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import net.sf.tapestry.contrib.table.model.ITableDataModel;
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import net.sf.tapestry.contrib.table.model.ITableModel;
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import net.sf.tapestry.contrib.table.model.ITableModelSource;
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import net.sf.tapestry.contrib.table.model.ITableSessionStateManager;
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import net.sf.tapestry.contrib.table.model.ognl.ExpressionTableColumn;
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import net.sf.tapestry.contrib.table.model.simple.SimpleListTableDataModel;
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import net.sf.tapestry.contrib.table.model.simple.SimpleTableColumn;
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import net.sf.tapestry.contrib.table.model.simple.SimpleTableColumnModel;
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import net.sf.tapestry.contrib.table.model.simple.SimpleTableSessionStateManager;
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import net.sf.tapestry.contrib.table.model.simple.SimpleTableState;
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import net.sf.tapestry.event.PageDetachListener;
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import net.sf.tapestry.event.PageEvent;
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import net.sf.flock.SubscriptionInfoI;
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import net.sf.flock.FlockResourceException;
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import net.sf.flock.webapp.FlockContext;
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import org.apache.log4j.LogManager;
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import org.apache.log4j.Logger;
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public class SubscriptionsTable extends BaseComponent implements PageDetachListener {
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private final static Logger LOGGER = LogManager.getLogger(SubscriptionsTable.class);
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private SubscriptionInfoI currentSubscription;
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private ITableSessionStateManager tableStateSessionManager;
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public SubscriptionInfoI getCurrentSubscription() {
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return currentSubscription;
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}
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public void setCurrentSubscription(SubscriptionInfoI currentSubscription) {
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this.currentSubscription = currentSubscription;
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}
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/**
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* @see net.sf.tapestry.AbstractComponent#finishLoad()
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*/
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protected void finishLoad() {
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super.finishLoad();
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this.getPage().addPageDetachListener(this);
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}
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/**
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* @see net.sf.tapestry.event.PageDetachListener#pageDetached(net.sf.tapestry.event.PageEvent)
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*/
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public void pageDetached(PageEvent evt) {
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this.tableStateSessionManager = null;
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}
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private void initTableSessionStateManager() {
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LOGGER.debug("initTableSessionStateManager");
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ITableDataModel tableDataModel = this.createTableDataModel();
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ITableColumnModel tableColumnModel = this.createTableColumnModel();
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this.tableStateSessionManager = new SimpleTableSessionStateManager(tableDataModel, tableColumnModel);
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}
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private ITableColumnModel createTableColumnModel() {
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final ComponentAddress componentAddress = new ComponentAddress(this);
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return new SimpleTableColumnModel(
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new ITableColumn[] {
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new BlockColumn(componentAddress, "Location", "blockLocation"),
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new BlockColumn(componentAddress, "Title", "blockTitle"),
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new ExpressionTableColumn("Category", "metaData.get(\"path\")", true),
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new BlockColumn(componentAddress, "Action", "blockAction")
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}
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);
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}
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private ITableDataModel createTableDataModel() {
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try {
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List feedList = new ArrayList(FlockContext.getSubscriptionManager().getSubscriptionInfos());
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return new SimpleListTableDataModel(feedList);
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} catch (FlockResourceException e) {
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throw new ApplicationRuntimeException(e);
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}
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}
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public ITableModel getTableModel() {
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if (this.tableStateSessionManager==null) {
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this.initTableSessionStateManager();
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}
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return this.tableStateSessionManager.recreateTableModel( new SimpleTableState() );
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}
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public ITableSessionStateManager getTableSessionStateManager() {
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LOGGER.debug("getTableSessionStateManager");
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if (this.tableStateSessionManager==null) {
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this.initTableSessionStateManager();
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}
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return this.tableStateSessionManager;
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}
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public void deleteFeed(IRequestCycle cycle) throws RequestCycleException {
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URL location = (URL)cycle.getServiceParameters()[0];
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LOGGER.info("Unsubscribe feed "+location);
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try {
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FlockContext.getSubscriptionManager().unsubscribe(location);
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} catch (FlockResourceException e) {
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throw new ApplicationRuntimeException(e);
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}
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}
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public void refreshFeed(IRequestCycle cycle) throws RequestCycleException {
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URL location = (URL)cycle.getServiceParameters()[0];
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LOGGER.info("Refresh feed "+location);
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try {
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FlockContext.getSubscriptionManager().refresh(location);
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} catch (FlockResourceException e) {
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throw new ApplicationRuntimeException(e);
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}
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}
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private static class BlockColumn extends SimpleTableColumn {
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private String blockName;
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private ComponentAddress componentAddress;
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public BlockColumn(ComponentAddress componentAddress, String title, String blockName) {
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super(title, true);
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this.blockName = blockName;
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this.componentAddress = componentAddress;
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}
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public IRender getValueRenderer(IRequestCycle cycle, ITableModelSource source, Object row) {
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SubscriptionsTable comp = (SubscriptionsTable) componentAddress.findComponent(cycle);
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comp.setCurrentSubscription((SubscriptionInfoI)row);
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Block block = (Block) comp.getComponent(this.blockName);
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return new BlockRenderer(block);
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}
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}
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}
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