com.enonic.cms.framework.util.LazyInitializedJDOMDocument.java Source code

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Here is the source code for com.enonic.cms.framework.util.LazyInitializedJDOMDocument.java

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/*
 * Copyright 2000-2011 Enonic AS
 * http://www.enonic.com/license
 */
package com.enonic.cms.framework.util;

import java.io.IOException;
import java.io.Serializable;

import org.apache.commons.lang.builder.HashCodeBuilder;
import org.jdom.Document;
import org.jdom.JDOMException;

/**
 * Apr 27, 2010
 */
public class LazyInitializedJDOMDocument implements Serializable {
    private final String documentAsString;

    //private transient Document cachedDocument;

    public static LazyInitializedJDOMDocument parse(Document document) {
        String docAsString = JDOMUtil.printDocument(document);
        return new LazyInitializedJDOMDocument(docAsString);
    }

    public LazyInitializedJDOMDocument(String documentAsString) {
        if (documentAsString == null) {
            throw new IllegalArgumentException("Given documentAsString cannot be null");
        }
        this.documentAsString = documentAsString;
    }

    public LazyInitializedJDOMDocument(String documentAsString, Document cachedDocument) {
        this.documentAsString = documentAsString;
        /*if ( cachedDocument != null )
        {
        this.cachedDocument = (Document) cachedDocument.clone();
        }*/
    }

    public String getDocumentAsString() {
        return documentAsString;
    }

    public Document getDocument() {
        try {
            /*if ( cachedDocument == null )
            {
            cachedDocument = JDOMUtil.parseDocument( documentAsString );
            }
            return (Document) cachedDocument.clone();*/
            return JDOMUtil.parseDocument(documentAsString);
        } catch (IOException e) {
            throw new RuntimeException("Failed to parse document: " + e.getMessage(), e);
        } catch (JDOMException e) {
            throw new RuntimeException("Failed to parse document: " + e.getMessage(), e);
        }
    }

    public Object clone() {
        //return new LazyInitializedJDOMDocument( documentAsString, cachedDocument );
        return new LazyInitializedJDOMDocument(documentAsString);
    }

    @Override
    public boolean equals(Object o) {
        if (this == o) {
            return true;
        }
        if (!(o instanceof LazyInitializedJDOMDocument)) {
            return false;
        }

        LazyInitializedJDOMDocument that = (LazyInitializedJDOMDocument) o;

        if (documentAsString != null ? !documentAsString.equals(that.documentAsString)
                : that.documentAsString != null) {
            return false;
        }

        return true;
    }

    @Override
    public int hashCode() {
        return new HashCodeBuilder(671, 11).append(documentAsString).toHashCode();
    }
}