HandlerState.java

package de.danoeh.antennapodsp.syndication.handler;

import de.danoeh.antennapodsp.feed.Feed;
import de.danoeh.antennapodsp.feed.FeedItem;
import de.danoeh.antennapodsp.syndication.namespace.Namespace;
import de.danoeh.antennapodsp.syndication.namespace.SyndElement;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.Stack;

/**
 * Contains all relevant information to describe the current state of a
 * SyndHandler.
 */
public class HandlerState {

    /**
     * Feed that the Handler is currently processing.
     */
    protected Feed feed;
    protected ArrayList<FeedItem> items;
    protected FeedItem currentItem;
    protected Stack<SyndElement> tagstack;
    /**
     * Namespaces that have been defined so far.
     */
    protected HashMap<String, Namespace> namespaces;
    protected Stack<Namespace> defaultNamespaces;
    /**
     * Buffer for saving characters.
     */
    protected StringBuffer contentBuf;

    /**
     * Temporarily saved objects.
     */
    protected HashMap<String, Object> tempObjects;

    public HandlerState(Feed feed) {
        this.feed = feed;
        items = new ArrayList<FeedItem>();
        tagstack = new Stack<SyndElement>();
        namespaces = new HashMap<String, Namespace>();
        defaultNamespaces = new Stack<Namespace>();
        tempObjects = new HashMap<String, Object>();
    }

    public Feed getFeed() {
        return feed;
    }

    public ArrayList<FeedItem> getItems() {
        return items;
    }

    public FeedItem getCurrentItem() {
        return currentItem;
    }

    public Stack<SyndElement> getTagstack() {
        return tagstack;
    }

    public void setFeed(Feed feed) {
        this.feed = feed;
    }

    public void setCurrentItem(FeedItem currentItem) {
        this.currentItem = currentItem;
    }

    /**
     * Returns the SyndElement that comes after the top element of the tagstack.
     */
    public SyndElement getSecondTag() {
        SyndElement top = tagstack.pop();
        SyndElement second = tagstack.peek();
        tagstack.push(top);
        return second;
    }

    public SyndElement getThirdTag() {
        SyndElement top = tagstack.pop();
        SyndElement second = tagstack.pop();
        SyndElement third = tagstack.peek();
        tagstack.push(second);
        tagstack.push(top);
        return third;
    }

    public StringBuffer getContentBuf() {
        return contentBuf;
    }

    public HashMap<String, Object> getTempObjects() {
        return tempObjects;
    }

}