com.liferay.portal.xsl.XSLTemplateResource.java Source code

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Here is the source code for com.liferay.portal.xsl.XSLTemplateResource.java

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/**
 * Copyright (c) 2000-present Liferay, Inc. All rights reserved.
 *
 * This library is free software; you can redistribute it and/or modify it under
 * the terms of the GNU Lesser General Public License as published by the Free
 * Software Foundation; either version 2.1 of the License, or (at your option)
 * any later version.
 *
 * This library is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
 * FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
 * details.
 */

package com.liferay.portal.xsl;

import com.liferay.petra.lang.HashUtil;
import com.liferay.portal.kernel.io.unsync.UnsyncStringReader;
import com.liferay.portal.kernel.template.TemplateResource;
import com.liferay.portal.kernel.util.Validator;

import java.io.IOException;
import java.io.ObjectInput;
import java.io.ObjectOutput;
import java.io.Reader;

import java.util.Objects;

/**
 * @author Tina Tian
 */
public class XSLTemplateResource implements TemplateResource {

    /**
     * The empty constructor is required by {@link java.io.Externalizable}. Do
     * not use this for any other purpose.
     */
    public XSLTemplateResource() {
    }

    public XSLTemplateResource(String templateId, String xsl, XSLURIResolver xslURIResolver, String xml) {

        if (Validator.isNull(templateId)) {
            throw new IllegalArgumentException("Template ID is null");
        }

        if (Validator.isNull(xsl)) {
            throw new IllegalArgumentException("XSL is null");
        }

        if (Validator.isNull(xml)) {
            throw new IllegalArgumentException("XML is null");
        }

        _templateId = templateId;
        _xsl = xsl;
        _xslURIResolver = xslURIResolver;
        _xml = xml;
    }

    @Override
    public boolean equals(Object obj) {
        if (this == obj) {
            return true;
        }

        if (!(obj instanceof XSLTemplateResource)) {
            return false;
        }

        XSLTemplateResource xslTemplateResource = (XSLTemplateResource) obj;

        if (_templateId.equals(xslTemplateResource._templateId) && _xsl.equals(xslTemplateResource._xsl)
                && Objects.equals(_xslURIResolver, xslTemplateResource._xslURIResolver)
                && _xml.equals(xslTemplateResource._xml)) {

            return true;
        }

        return false;
    }

    @Override
    public long getLastModified() {
        return _lastModified;
    }

    @Override
    public Reader getReader() {
        return new UnsyncStringReader(_xsl);
    }

    @Override
    public String getTemplateId() {
        return _templateId;
    }

    public Reader getXMLReader() {
        return new UnsyncStringReader(_xml);
    }

    public XSLURIResolver getXSLURIResolver() {
        return _xslURIResolver;
    }

    @Override
    public int hashCode() {
        int hashCode = HashUtil.hash(0, _templateId);

        hashCode = HashUtil.hash(hashCode, _xsl);
        hashCode = HashUtil.hash(hashCode, _xslURIResolver);
        hashCode = HashUtil.hash(hashCode, _xml);

        return hashCode;
    }

    @Override
    public void readExternal(ObjectInput objectInput) throws ClassNotFoundException, IOException {

        _templateId = objectInput.readUTF();
        _lastModified = objectInput.readLong();
        _xsl = objectInput.readUTF();
        _xslURIResolver = (XSLURIResolver) objectInput.readObject();
        _xml = objectInput.readUTF();
    }

    @Override
    public void writeExternal(ObjectOutput objectOutput) throws IOException {
        objectOutput.writeUTF(_templateId);
        objectOutput.writeLong(_lastModified);
        objectOutput.writeUTF(_xsl);
        objectOutput.writeObject(_xslURIResolver);
        objectOutput.writeUTF(_xml);
    }

    private long _lastModified = System.currentTimeMillis();
    private String _templateId;
    private String _xml;
    private String _xsl;
    private XSLURIResolver _xslURIResolver;

}