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This project allows a user to interact with ESP services in a controlled manner. The API calls available under org.hpccsystems.ws.client.platform allow for a user to target ESP's across multiple environments running a range of hpccsystems-platform versions. There is no guarantee that if a user utilizes org.hpccsystems.ws.client.gen generated stub code from wsdl, that the calls will be backwards compatible with older hpccsystems-platform versions.

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/*******************************************************************************
 * Copyright (c) 2011 HPCC Systems. All rights reserved. This program and the accompanying materials are made available
 * under the terms of the Eclipse Public License v1.0 which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors: HPCC Systems - initial API and implementation
 ******************************************************************************/
package org.hpccsystems.ws.client.utils;

import java.util.Stack;

import org.xml.sax.Attributes;
import org.xml.sax.SAXException;
import org.xml.sax.helpers.DefaultHandler;

public class StackHandler extends DefaultHandler
{
    public class Element
    {
        public String        tag;
        public Attributes    attributes;
        public StringBuilder content;

        Element(String tag, Attributes attributes)
        {
            this.tag = tag;
            this.attributes = attributes;
            content = new StringBuilder();
        }

        void appendContent(char[] ch, int start, int length)
        {
            content.append(new String(ch, start, length));
        }
    }

    protected Stack elementStack;

    public StackHandler()
    {
        elementStack = new Stack();
    }

    @Override
    public void characters(char[] ch, int start, int length) throws SAXException
    {
        assert (!elementStack.empty());
        elementStack.peek().appendContent(ch, start, length);
        super.characters(ch, start, length);
    }

    @Override
    public void startDocument() throws SAXException
    {
        super.startDocument();
    }

    @Override
    public void endDocument() throws SAXException
    {
        super.endDocument();
    }

    @Override
    public void startElement(String uri, String localName, String qName, Attributes attributes) throws SAXException
    {
        super.startElement(uri, localName, qName, attributes);
        elementStack.push(new Element(qName, attributes));
    }

    @Override
    public void endElement(String uri, String localName, String qName) throws SAXException
    {
        elementStack.pop();
        super.endElement(uri, localName, qName);
    }
}




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