com.thruzero.domain.dsc.ws.WsDataStoreContainer.java Source code

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Here is the source code for com.thruzero.domain.dsc.ws.WsDataStoreContainer.java

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/*
 *   Copyright 2012 George Norman
 *
 *   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.thruzero.domain.dsc.ws;

import java.io.IOException;
import java.util.List;

import javax.ws.rs.core.MultivaluedMap;

import org.apache.commons.io.IOUtils;
import org.apache.commons.lang3.CharEncoding;

import com.sun.jersey.api.client.Client;
import com.sun.jersey.api.client.WebResource;
import com.sun.jersey.core.util.MultivaluedMapImpl;
import com.thruzero.common.core.infonode.InfoNodeElement;
import com.thruzero.common.core.infonode.builder.SaxInfoNodeBuilder;
import com.thruzero.common.core.support.ContainerPath;
import com.thruzero.common.core.support.EntityPath;
import com.thruzero.domain.dsc.store.DataStoreContainer;
import com.thruzero.domain.dsc.store.SimpleDataStoreEntity;
import com.thruzero.domain.store.BaseStorePath;

/**
 * Web Service based data store container ### This is Work-In-Progress #### Only the readEntity function is implemented. TODO-p1(george) Finish this
 * implementation
 * <p>
 * All DataStoreContainer objects are managed by {@code GenericDscDAO}, which will flatten and resurrect the Domain Object instances automatically (and passed
 * in as instances of DataStoreEntity).
 * 
 * @author George Norman
 */
public class WsDataStoreContainer implements DataStoreContainer {
    /** Saved ContainerPath instance. */
    private ContainerPath resourceContainerPath;

    private Client client;
    private WebResource resource;

    // ============================================================
    // WsDataStoreContainer
    // ============================================================

    public WsDataStoreContainer(BaseStorePath baseStorePath, ContainerPath containerPath, String rootServiceUri) {
        this.resourceContainerPath = new ContainerPath(containerPath.getPath());

        this.client = Client.create();
        this.resource = client.resource(rootServiceUri);
    }

    @Override
    public DataStoreEntity readEntity(String entityName) {
        MultivaluedMap<String, String> params = new MultivaluedMapImpl();
        params.add("containerPath", resourceContainerPath.getPath());
        params.add("entityName", entityName);

        String response = resource.path("readEntity").queryParams(params).get(String.class);

        SimpleDataStoreEntity result;
        try {
            result = new SimpleDataStoreEntity(IOUtils.toInputStream(response, CharEncoding.UTF_8),
                    new EntityPath(new ContainerPath(), entityName));
            return result;
        } catch (IOException e) {
            throw new RuntimeException("couldn't convert data to InputStream.", e);
        }
    }

    @Override
    public List<? extends DataStoreEntity> getAllEntities(boolean recursive) {
        // TODO-p2(george) Auto-generated method stub
        return null;
    }

    @Override
    public List<EntityPath> getAllEntityPaths(boolean recursive) {
        // TODO-p2(george) Auto-generated method stub
        return null;
    }

    @Override
    public void saveOrUpdateEntity(String entityName, DataStoreEntity dataStoreEntity) {
        // TODO-p2(george) Auto-generated method stub

    }

    @Override
    public void updateEntity(String entityName, DataStoreEntity dataStoreEntity) {
        // TODO-p2(george) Auto-generated method stub

    }

    @Override
    public void createNewEntity(String entityName) {
        // TODO-p2(george) Auto-generated method stub

    }

    @Override
    public void deleteEntity(String entityName) {
        // TODO-p2(george) Auto-generated method stub

    }

    @Override
    public boolean isExistingEntity(String entityName) {
        MultivaluedMap<String, String> params = new MultivaluedMapImpl();
        params.add("containerPath", resourceContainerPath.getPath());
        params.add("entityName", entityName);

        String response = resource.path("isExistingEntity").queryParams(params).get(String.class);

        InfoNodeElement responseAsNode;
        try {
            responseAsNode = SaxInfoNodeBuilder.DEFAULT.buildInfoNode(response, null);
        } catch (Exception e) {
            throw new RuntimeException("Invalid response node.", e);
        }

        return responseAsNode.getAttributeTransformer("value").getBooleanValue();
    }

    @Override
    public void validate() {
        // TODO-p2(george) Auto-generated method stub

    }

    @Override
    public String getDebugPathInfo(String entityName) {
        // TODO-p2(george) Auto-generated method stub
        return null;
    }

}