org.beigesoft.service.persist.xml.ASrvSaveXmlBase.java Source code

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Here is the source code for org.beigesoft.service.persist.xml.ASrvSaveXmlBase.java

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/*
 * Beigesoft 
 * 
 * Licensed under the Apache License, Version 2.0
 * 
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 */

package org.beigesoft.service.persist.xml;

import org.apache.commons.lang.nonstatic.SrvXml;

/**
 * <p>Light-weight(memory friendly) persist XML service
 * Use simple java File writer to persist
 * and SAX to restore</p>
 * 
 * @author Yury Demidenko
 */
public abstract class ASrvSaveXmlBase {

    private final String namePersistable;

    protected final SrvXml srvXml = new SrvXml();

    public ASrvSaveXmlBase(String namePersistable) {
        this.namePersistable = namePersistable;
    }

    //Utils:
    public String getStartXmlAndNewLine() {
        return "<?xml version=\"1.0\" ?>\n";
    }

    public String toStartElement(String element) {
        return "<" + element + ">";
    }

    public String toStartElementAndNewLine(String element) {
        return "<" + element + ">\n";
    }

    public String toStartElementAndTwoNewLine(String element) {
        return "<" + element + ">\n\n";
    }

    public String toStartElementOpened(String element) {
        return "<" + element + " ";
    }

    public String toAttribute(String attrName, String attrValue) {
        return attrName + "=\"" + escapeXml(attrValue) + "\" ";
    }

    public String endElementOpened() {
        return ">";
    }

    public String endElementOpenedAndNewLine() {
        return ">\n";
    }

    public String closeElementOpened() {
        return "/>";
    }

    public String closeElementOpenedAndNewLine() {
        return "/>\n";
    }

    public String toEndElement(String element) {
        return "</" + element + ">";
    }

    public String toEndElementAndNewLine(String element) {
        return "</" + element + ">\n";
    }

    public String toEndElementAndTwoNewLine(String element) {
        return "</" + element + ">\n\n";
    }

    public String toStringOrNull(Object value) {
        if (value == null) {
            return "<Null/>";
        }
        return escapeXml(value.toString());
    }

    public String toEnumNameOrNull(Enum<?> value) {
        if (value == null) {
            return "<Null/>";
        }
        return value.name();
    }

    public String escapeXml(String origin) {
        return srvXml.escapeXml10(origin);
    }

    //SGS:
    public String getNamePersistable() {
        return namePersistable;
    }
}