Creating Feeds

The Eclipse plugin allows you to create the feed with all required files at once.

1. In Eclipse, select File > New > Other.
2. Select CloudView Mashup Components > Mashup-API feed and click Next.
3. Define your feed general configuration:
   1. Specify a source folder.
   2. Specify a package.
   3. Give it a name.
4. Click Finish.

   The new feed is added to the specified source folder in the Project Explorer panel. Edit the feed files as needed.

public abstract class Feed {
    /*
     * API to implement
     */
    /**
     * Return a human friendly name for this Feed, to be used by the Administration Console
     */
    abstract public String getDisplayName();1 
    /**
     * Execute routine. Called when receiving a request without any specific ID.
     * @param context
     * @return Return the ResultFeed for the given QueryContext
     * @throws AccessException
     */
    abstract public ResultFeed execute(QueryContext context)4 throws AccessException;
    /**
     * Get routine. Called when receiving a request with a specific ID. Must return one and only one hit.
     * @param context
     * @param id
     * @throws AccessException
     */
    abstract public ResultFeed get(QueryContext context, String id) throws AccessException;
    /**
     * Get the list of available metas for the given feed configuration.
     * @param feedConf
     * @throws AccessException
     */
        @Override
    public AvailableMetas getAvailableMetas(Map<String, String[]> feedConf) throws AccessException {
        AvailableMetas m = new AvailableMetas();
        String[] mv = { "metaName", "feedOption1" };
        m.addType(new AvailableMetas.Type("all", mv, null));
        return m;
    }
    /**
     * Get the list of supported parameters by this Feed.
     * @return An array of supported Parameters
     */
    abstract protected Parameter[] getSupportedParameters();3

import java.util.HashMap;
import java.util.Map;

import com.exalead.access.feedapi.AccessException;
import com.exalead.access.feedapi.Entry;
import com.exalead.access.feedapi.Feed;
import com.exalead.access.feedapi.Meta;
import com.exalead.access.feedapi.QueryContext;
import com.exalead.access.feedapi.ResultFeed;
import com.exalead.access.feedapi.utils.FeedHelper;
import com.exalead.access.feedapi.v10.AvailableMetas;
import com.exalead.access.feedapi.v10.Parameter;
import com.exalead.cv360.customcomponents.CustomComponent;

@CustomComponent(displayName = "Sample Feed")
public class SampleFeed extends Feed {

	@Override
	public String getDisplayName() {
		return "Sample Feed";
	}

	@Override
	public ResultFeed execute(QueryContext context) throws AccessException {
		String feedOption1 = this.getEvaluatedParameter(context, "feedOption1");
		ResultFeed r = new ResultFeed(this);
		Entry e = new Entry("42");
		e.addMeta(new Meta("metaName", "metaValue"));
		e.addMeta(new Meta("feedOption1", feedOption1));
		r.addEntry(e);
		return r;
	}

	@Override
	public ResultFeed get(QueryContext context, String id) throws AccessException {
		return null;
	}

	@Override
	public AvailableMetas getAvailableMetas(Map<String, String[]> feedConf) throws AccessException {
		AvailableMetas m = new AvailableMetas();
		String[] mv = { "metaName", "feedOption1" };
		m.addType(new AvailableMetas.Type("all", mv, null));
		return m;
	}

	@Override
	protected Parameter[] getSupportedParameters() {
		return new Parameter[] { new Parameter("feedOption1") };
	}
	public static void main(String[] args) throws Exception {
		com.exalead.access.configuration.v10.Feed config = new com.exalead.access.configuration.v10.Feed();
		config.addParameter(new com.exalead.access.configuration.v10.Feed.Parameter("feedOption1", "value1"));

		Feed pageSearch = FeedHelper.getTestPageFeed("search");

		pageSearch.getSubFeeds().add(FeedHelper.getTestFeed(SampleFeed.class, "test", config));

		// FeedTrigger trigger = new testFeedTrigger();
		// testFeed.getTriggers().add(trigger);

		Map<String, String> params = new HashMap<String, String>();
		params.put("test.feedOption1", "feedOption1Value");


		ResultFeed result = FeedHelper.runFirstFeed(pageSearch, params);
		for (Entry e : result.getEntries()) {
			for (Object s : e.getMetas().keySet().toArray()) {
				System.out.println(s + " : " + e.getMeta((String) s).getFirstValue());
			}
		}
	}
}