AddNewStrategy.java

/*******************************************************************************
 * Copyright (c) 2015 IBM Corp.
 *
 * 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.
 *******************************************************************************/
package com.ibm.ws.repository.strategies.writeable;

import java.util.List;

import com.ibm.ws.repository.common.enums.State;
import com.ibm.ws.repository.exceptions.RepositoryBackendException;
import com.ibm.ws.repository.exceptions.RepositoryBadDataException;
import com.ibm.ws.repository.exceptions.RepositoryResourceException;
import com.ibm.ws.repository.exceptions.RepositoryResourceValidationException;
import com.ibm.ws.repository.resources.internal.RepositoryResourceImpl;
import com.ibm.ws.repository.resources.internal.RepositoryResourceImpl.AttachmentResourceImpl;

/**
 * This strategy will add a new resource to the repository. It does not care if an equivalent resource exists, it will
 * always create a new (potentially duplicate) resource.
 */
public class AddNewStrategy extends BaseStrategy {

    /**
     * Delegate to super class for states
     */
    public AddNewStrategy() {}

    /**
     * Sets the desired state of the asset after uploading it
     * 
     * @param desiredStateIfMatchingFound This is not used by this strategy but can be used by derived strategies
     * @param desiredStateIfNoMatchingFound Set the resource to this state after uploading. This behaviour can
     *            be changed by derived classes
     */
    public AddNewStrategy(State desiredStateIfMatchingFound, State desiredStateIfNoMatchingFound) {
        super(desiredStateIfMatchingFound, desiredStateIfNoMatchingFound);
    }

    /** {@inheritDoc} */
    @Override
    public void uploadAsset(RepositoryResourceImpl resource, List<RepositoryResourceImpl> matchingResources) throws RepositoryBackendException, RepositoryResourceException {
        // Add the asset
        resource.addAsset();

        // ... and the attachments
        for (AttachmentResourceImpl attachment : resource.getAttachmentImpls()) {
            resource.addAttachment(attachment);
        }

        // read back any fields massive added during upload
        resource.refreshFromMassive();

        // Move the resource to the desired state, use the noMatching state as matching will be null by default
        RepositoryResourceImpl firstMatch = (matchingResources == null || matchingResources.isEmpty()) ? null : matchingResources.get(0);
        resource.moveToState(getTargetState(firstMatch));
    }

    /**
     * Get the state that the resource being added should be set to once it's been uploaded
     * 
     * @param matchingResource
     * @return
     */
    protected State getTargetState(RepositoryResourceImpl matchingResource) {
        return _desiredStateIfNoMatchingFound;
    }

    @Override
    public List<RepositoryResourceImpl> findMatchingResources(RepositoryResourceImpl resource) throws RepositoryResourceValidationException,
                    RepositoryBackendException, RepositoryBadDataException {
        return null;
    }
}