org.efaps.update.schema.program.CSSUpdate Maven / Gradle / Ivy

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/*
 * Copyright 2003 - 2012 The eFaps Team
 *
 * 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.
 *
 * Revision:        $Rev: 7483 $
 * Last Changed:    $Date: 2012-05-11 11:57:38 -0500 (Fri, 11 May 2012) $
 * Last Changed By: $Author: [email protected] $
 */

package org.efaps.update.schema.program;

import java.net.URL;
import java.util.HashSet;
import java.util.Set;

import org.efaps.ci.CIAdminProgram;
import org.efaps.update.LinkInstance;
import org.efaps.update.schema.program.staticsource.CSSImporter;
import org.efaps.update.util.InstallationException;

/**
 * The class updates programs from type Admin_Program_CSS inside
 * the eFaps database.
 *
 * @author jmox
 * @version $Id: CSSUpdate.java 7483 2012-05-11 16:57:38Z [email protected] $
 */
public class CSSUpdate
    extends AbstractSourceUpdate
{

    /**
     * Link from CSS extending CSS.
     */
    private static final Link LINK2SUPER = new Link(CIAdminProgram.CSS2CSS.getType().getName(),
                                                    CIAdminProgram.CSS2CSS.From.name,
                                                    CIAdminProgram.CSS.getType().getName(),
                                                    CIAdminProgram.CSS2CSS.To.name);

    /**
     * Set off all links for this cssupdate.
     */
    private static final Set ALLLINKS = new HashSet();
    static {
        CSSUpdate.ALLLINKS.add(CSSUpdate.LINK2SUPER);
    }

    /**
     * Constructor.
     *
     * @param _url URL of the file
     */
    protected CSSUpdate(final URL _url)
    {
        super(_url, CIAdminProgram.CSS.getType().getName(), CSSUpdate.ALLLINKS);
    }

    /**
     * Read the file.
     *
     * @param _url URL to the file
     * @return CSSUpdate
     */
    public static CSSUpdate readFile(final URL _url)
    {

        final CSSUpdate ret = new CSSUpdate(_url);
        final CSSDefinition definition = ret.new CSSDefinition(_url);
        ret.addDefinition(definition);
        return ret;
    }

    /**
     *
     */
    public class CSSDefinition
        extends AbstractSourceDefinition
    {

        /**
         * Importer for the css.
         */
        private CSSImporter sourceCode = null;

        /**
         * Construtor.
         *
         * @param _url URL to the css file
         *
         */
        public CSSDefinition(final URL _url)
        {
            super(_url);
        }

        /**
         * Search the instance.
         *
         * @throws InstallationException if the Java source code could not be read or
         *             the file could not be accessed because of the wrong URL
         */
        @Override
        protected void searchInstance()
            throws InstallationException
        {
            if (this.sourceCode == null) {
                this.sourceCode = new CSSImporter(getUrl());
            }
            setName(this.sourceCode.getProgramName());

            if (this.sourceCode.getEFapsUUID() != null) {
                addValue("UUID", this.sourceCode.getEFapsUUID().toString());
            }

            if (this.sourceCode.getExtendSource() != null) {
                addLink(CSSUpdate.LINK2SUPER,
                                new LinkInstance(this.sourceCode.getExtendSource()));
            }

            if (getInstance() == null) {
                setInstance(this.sourceCode.searchInstance());
            }
        }

        /**
         * {@inheritDoc}
         */
        @Override
        protected String getRevision()
            throws InstallationException
        {
            if (this.sourceCode == null) {
                this.sourceCode = new CSSImporter(getUrl());
            }
            return this.sourceCode.getRevision();
        }
    }
}