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Cristal-ise is a description-driven software platform originally developed to track the construction of the CMS ECAL detector of the LHC at CERN. This is its core library, known as the kernel, which manages business objects called Items. Items are entirely configured from data, called descriptions, held in other Items. Every change of a state in an Item is a consequence of an execution of an activity in that Item's lifecycle, meaning that Cristal-ise applications are completely traceable, even in their design. It also supports extensive versioning of Item description data, giving the system a high level of flexibility.

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/**
 * This file is part of the CRISTAL-iSE kernel.
 * Copyright (c) 2001-2015 The CRISTAL Consortium. 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 3 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; with out even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
 * License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this library; if not, write to the Free Software Foundation,
 * Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
 *
 * http://www.fsf.org/licensing/licenses/lgpl.html
 */
package org.cristalise.kernel.process.resource;

import static org.cristalise.kernel.process.resource.BuiltInResources.*;

import java.util.HashSet;
import java.util.Set;

import org.cristalise.kernel.collection.CollectionArrayList;
import org.cristalise.kernel.lookup.DomainPath;
import org.cristalise.kernel.persistency.outcome.Outcome;
import org.cristalise.kernel.persistency.outcome.Schema;
import org.cristalise.kernel.process.Gateway;
import org.cristalise.kernel.property.PropertyDescriptionList;
import org.cristalise.kernel.querying.Query;
import org.cristalise.kernel.scripting.Script;
import org.cristalise.kernel.utils.DescriptionObject;
import org.cristalise.kernel.utils.LocalObjectLoader;


public class DefaultResourceImportHandler implements ResourceImportHandler {

    BuiltInResources         type;
    DomainPath               typeRootPath;
    PropertyDescriptionList  props;

    public DefaultResourceImportHandler(BuiltInResources resType) throws Exception {
        type = resType;
        typeRootPath = new DomainPath(type.getTypeRoot());
        props = (PropertyDescriptionList)Gateway.getMarshaller().unmarshall(Gateway.getResource().getTextResource(null, "boot/property/"+resType+"Prop.xml"));
    }

    @Deprecated
    public DefaultResourceImportHandler(String resType) throws Exception {
        this(BuiltInResources.getValue(resType));
    }

    @Override
    public CollectionArrayList getCollections(String name, String ns, String location, Integer version) throws Exception {
        return getCollections(name, version,Gateway.getResource().getTextResource(ns, location));
    }

    @Override
    public CollectionArrayList getCollections(String name, Integer version, Outcome outcome) throws Exception {
        return getCollections(name, version, outcome.getData());
    }

    private CollectionArrayList getCollections(String name, Integer version, String xml) throws Exception {
        if (type == SCHEMA_RESOURCE) {
            return new Schema(name, version, null, xml).makeDescCollections();
        }
        else if (type == SCRIPT_RESOURCE) {
            return new Script(name, version, null, xml).makeDescCollections();
        }
        else if (type == QUERY_RESOURCE) {
            return new Query(name, version, null, xml).makeDescCollections();
        }
        else {
            DescriptionObject descObject = (DescriptionObject)Gateway.getMarshaller().unmarshall(xml);
            descObject.setVersion(version);
            return descObject.makeDescCollections();
        }
    }

    @Override
    public DomainPath getTypeRoot() {
        return typeRootPath;
    }

    @Override
    public String getName() {
        return type.getSchemaName();
    }

    @Override
    public DomainPath getPath(String name, String ns) throws Exception {
        //return new DomainPath(type.getTypeRoot()+"/system/"+(ns == null ? "kernel" : ns)+'/'+name);
        return new DomainPath(type.getTypeRoot()+"/"+(ns == null ? "kernel" : ns)+'/'+name);
    }

    @Override
    public Set getResourceOutcomes(String name, String ns, String location, Integer version) throws Exception {
        HashSet retArr = new HashSet();
        String data = Gateway.getResource().getTextResource(ns, location);

        if (data == null) throw new Exception("No data found for "+type.getSchemaName()+" "+name);

        Outcome resOutcome = new Outcome(0, data, LocalObjectLoader.getSchema(type.getSchemaName(), 0));
        retArr.add(resOutcome);
        return retArr;
    }

    @Override
    public PropertyDescriptionList getPropDesc() throws Exception {
        return props;
    }

    @Override
    public String getWorkflowName() throws Exception {
        return type.getWorkflowDef();
    }
}