Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;

import java.io.InputStream;

import java.util.HashMap;

import javax.xml.parsers.DocumentBuilderFactory;

import javax.xml.xpath.XPath;

import javax.xml.xpath.XPathFactory;
import org.w3c.dom.Document;

public class Main {
    private static DocumentBuilderFactory domFactory;
    private static XPathFactory xpathFactory;

    /**
     * Processes the POST request from the client instructing the server to process 
     * a serverStart or serverProxy. Returns the fields in this request as a HashMap for
     * easy handling.
     * 
     * @param xmlStream the InputStream obtained from an HttpServletRequest object. This contains the desired pipeline from the client.
     * @param search a HashMap with arbitrary names as keys and XPath Strings as values, the results of which are assigned as values to the names in the returned HashMap. 
     * @return
     */
    public static HashMap<String, String> procPipelineReq(InputStream xmlStream, HashMap<String, String> search) {
        HashMap<String, String> returnHash = new HashMap<String, String>();
        try {
            for (String item : search.keySet()) {
                Document xmlDoc = parse(xmlStream);
                XPath xpath = xpathFactory.newXPath();
                returnHash.put(item, xpath.evaluate(search.get(item), xmlDoc));
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
        return returnHash;
    }

    public static Document parse(InputStream inputStream) throws Exception {
        return domFactory.newDocumentBuilder().parse(inputStream);
    }
}