Example usage for org.apache.commons.net.nntp Threadable isDummy

Introduction

In this page you can find the example usage for org.apache.commons.net.nntp Threadable isDummy.

Prototype

public boolean isDummy();

Source Link

Usage

From source file:org.ossmeter.metricprovider.trans.newsgroups.threads.Threader.java

/**
 * The client passes in a list of Iterable objects, and
 * the Threader constructs a connected 'graph' of messages
 * @param messages iterable of messages to thread
 * @return null if messages == null or root.child == null
 * @since 3.0//  www. j a va2  s  . com
 */
public Threadable thread(Iterable<? extends Threadable> messages) {
    if (messages == null) {
        return null;
    }

    idTable = new HashMap<String, ThreadContainer>();

    // walk through each Threadable element
    for (Threadable t : messages) {
        if (!t.isDummy()) {
            buildContainer(t);
        }
    }

    root = findRootSet();
    idTable.clear();
    idTable = null;

    pruneEmptyContainers(root);

    root.reverseChildren();
    gatherSubjects();

    if (root.next != null) {
        throw new RuntimeException("root node has a next:" + root);
    }

    for (ThreadContainer r = root.child; r != null; r = r.next) {
        if (r.threadable == null) {
            r.threadable = r.child.threadable.makeDummy();
        }
    }

    Threadable result = (root.child == null ? null : root.child.threadable);
    root.flush();
    root = null;

    return result;
}

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