org.jclouds.vcloud.xml.ovf.NetworkSectionHandler.java Source code

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Here is the source code for org.jclouds.vcloud.xml.ovf.NetworkSectionHandler.java

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/**
 *
 * Copyright (C) 2010 Cloud Conscious, LLC. <info@cloudconscious.com>
 *
 * ====================================================================
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 * ====================================================================
 */

package org.jclouds.vcloud.xml.ovf;

import java.util.Map;
import java.util.Set;

import org.jclouds.http.functions.ParseSax;
import org.jclouds.vcloud.domain.ovf.NetworkSection;
import org.jclouds.vcloud.domain.ovf.network.Network;
import org.jclouds.vcloud.util.Utils;
import org.xml.sax.Attributes;

import com.google.common.collect.Sets;

/**
 * @author Adrian Cole
 */
public class NetworkSectionHandler extends ParseSax.HandlerWithResult<NetworkSection> {
    protected StringBuilder currentText = new StringBuilder();

    protected String info;
    protected String name;
    protected String description;

    protected Set<Network> networks = Sets.newLinkedHashSet();

    public NetworkSection getResult() {
        NetworkSection system = new NetworkSection(info, networks);
        this.info = null;
        this.networks = Sets.newLinkedHashSet();
        return system;
    }

    public void startElement(String uri, String localName, String qName, Attributes attrs) {
        Map<String, String> attributes = Utils.cleanseAttributes(attrs);
        if (qName.endsWith("Network")) {
            name = attributes.get("name");
        }
    }

    @Override
    public void endElement(String uri, String localName, String qName) {
        if (qName.endsWith("Info")) {
            this.info = currentOrNull();
        } else if (qName.endsWith("Description")) {
            this.description = currentOrNull();
        } else if (qName.endsWith("Network")) {
            this.networks.add(new Network(name, description));
        }
        currentText = new StringBuilder();
    }

    public void characters(char ch[], int start, int length) {
        currentText.append(ch, start, length);
    }

    protected String currentOrNull() {
        String returnVal = currentText.toString().trim();
        return returnVal.equals("") ? null : returnVal;
    }
}