org.apache.olingo.fit.V3ActionOverloading.java Source code

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/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements. See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership. The ASF licenses this file
 * to you 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 org.apache.olingo.fit;

import org.apache.commons.io.IOUtils;
import org.apache.commons.lang3.StringUtils;
import org.apache.olingo.commons.api.edm.constants.ODataServiceVersion;
import org.apache.olingo.fit.metadata.Metadata;
import org.apache.olingo.fit.utils.AbstractUtilities;
import org.apache.olingo.fit.utils.Accept;
import org.apache.olingo.fit.utils.Commons;
import org.apache.olingo.fit.utils.ConstantKey;
import org.apache.olingo.fit.utils.Constants;
import org.apache.olingo.fit.utils.FSManager;
import org.springframework.stereotype.Service;

import javax.ws.rs.DefaultValue;
import javax.ws.rs.GET;
import javax.ws.rs.HeaderParam;
import javax.ws.rs.POST;
import javax.ws.rs.Path;
import javax.ws.rs.PathParam;
import javax.ws.rs.Produces;
import javax.ws.rs.QueryParam;
import javax.ws.rs.core.Context;
import javax.ws.rs.core.MediaType;
import javax.ws.rs.core.Response;
import javax.ws.rs.core.UriInfo;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.util.Map;

@Service
@Path("/V30/ActionOverloading.svc")
public class V3ActionOverloading extends V3Services {

    public V3ActionOverloading() throws IOException {
        super(new Metadata(FSManager.instance(ODataServiceVersion.V30).readRes(
                "actionOverloading"
                        + StringUtils.capitalize(Constants.get(ODataServiceVersion.V30, ConstantKey.METADATA)),
                Accept.XML), ODataServiceVersion.V30));
    }

    private Response replaceServiceName(final Response response) {
        try {
            final String content = IOUtils.toString((InputStream) response.getEntity(), Constants.ENCODING)
                    .replaceAll("Static\\.svc", "ActionOverloading.svc");

            final Response.ResponseBuilder builder = Response.status(response.getStatus());
            for (String headerName : response.getHeaders().keySet()) {
                for (Object headerValue : response.getHeaders().get(headerName)) {
                    builder.header(headerName, headerValue);
                }
            }

            final InputStream toBeStreamedBack = IOUtils.toInputStream(content, Constants.ENCODING);
            final ByteArrayOutputStream baos = new ByteArrayOutputStream();
            IOUtils.copy(toBeStreamedBack, baos);
            IOUtils.closeQuietly(toBeStreamedBack);

            builder.header("Content-Length", baos.size());
            builder.entity(new ByteArrayInputStream(baos.toByteArray()));

            return builder.build();
        } catch (Exception e) {
            return response;
        }
    }

    @GET
    @Path("/$metadata")
    @Produces(MediaType.APPLICATION_XML)
    @Override
    public Response getMetadata() {
        return super.getMetadata("actionOverloading"
                + StringUtils.capitalize(Constants.get(ODataServiceVersion.V30, ConstantKey.METADATA)));
    }

    @POST
    @Path("/RetrieveProduct")
    public Response unboundRetrieveProduct(
            @HeaderParam("Accept") @DefaultValue(StringUtils.EMPTY) final String accept,
            @QueryParam("$format") @DefaultValue(StringUtils.EMPTY) final String format,
            @HeaderParam("Content-Type") @DefaultValue(StringUtils.EMPTY) final String contentType) {

        final Accept acceptType;
        if (StringUtils.isNotBlank(format)) {
            acceptType = Accept.valueOf(format.toUpperCase());
        } else {
            acceptType = Accept.parse(accept, ODataServiceVersion.V30);
        }
        if (acceptType == Accept.XML || acceptType == Accept.TEXT) {
            throw new UnsupportedMediaTypeException("Unsupported media type");
        }

        try {
            final InputStream result = FSManager.instance(ODataServiceVersion.V30)
                    .readFile("actionOverloadingRetrieveProduct", acceptType);
            return replaceServiceName(xml.createResponse(result, null, acceptType));
        } catch (Exception e) {
            return replaceServiceName(xml.createFaultResponse(accept, e));
        }
    }

    @GET
    @Path("/Product({entityId})")
    @Override
    public Response getProduct(@Context final UriInfo uriInfo,
            @HeaderParam("Accept") @DefaultValue(StringUtils.EMPTY) final String accept,
            @PathParam("entityId") final String entityId,
            @QueryParam("$format") @DefaultValue(StringUtils.EMPTY) final String format) {

        final Map.Entry<Accept, AbstractUtilities> utils = super.getUtilities(accept, format);

        if (utils.getKey() == Accept.XML || utils.getKey() == Accept.TEXT) {
            throw new UnsupportedMediaTypeException("Unsupported media type");
        }

        final Map.Entry<String, InputStream> entityInfo = utils.getValue().readEntity("Product", entityId,
                utils.getKey());

        InputStream entity = entityInfo.getValue();
        try {
            if (utils.getKey() == Accept.JSON_FULLMETA || utils.getKey() == Accept.ATOM) {
                entity = utils.getValue().addOperation(entity, "RetrieveProduct",
                        "#DefaultContainer.RetrieveProduct",
                        uriInfo.getAbsolutePath().toASCIIString() + "/RetrieveProduct");
            }

            return replaceServiceName(utils.getValue().createResponse(entity,
                    Commons.getETag(entityInfo.getKey(), ODataServiceVersion.V30), utils.getKey()));
        } catch (Exception e) {
            LOG.error("Error retrieving entity", e);
            return replaceServiceName(xml.createFaultResponse(accept, e));
        }
    }

    @POST
    @Path("/Product({entityId})/{path:.*RetrieveProduct}")
    public Response productBoundRetrieveProduct(
            @HeaderParam("Accept") @DefaultValue(StringUtils.EMPTY) final String accept,
            @QueryParam("$format") @DefaultValue(StringUtils.EMPTY) final String format,
            @HeaderParam("Content-Type") @DefaultValue(StringUtils.EMPTY) final String contentType) {

        return unboundRetrieveProduct(accept, format, contentType);
    }

    @GET
    @Path("/OrderLine(OrderId={orderId},ProductId={productId})")
    public Response getOrderLine(@Context final UriInfo uriInfo,
            @HeaderParam("Accept") @DefaultValue(StringUtils.EMPTY) final String accept,
            @PathParam("orderId") final String orderId, @PathParam("productId") final String productId,
            @QueryParam("$format") @DefaultValue(StringUtils.EMPTY) final String format) {

        final Map.Entry<Accept, AbstractUtilities> utils = super.getUtilities(accept, format);

        if (utils.getKey() == Accept.XML || utils.getKey() == Accept.TEXT) {
            throw new UnsupportedMediaTypeException("Unsupported media type");
        }

        final Map.Entry<String, InputStream> entityInfo = utils.getValue().readEntity("OrderLine",
                orderId + " " + productId, utils.getKey());

        InputStream entity = entityInfo.getValue();
        try {
            if (utils.getKey() == Accept.JSON_FULLMETA || utils.getKey() == Accept.ATOM) {
                entity = utils.getValue().addOperation(entity, "RetrieveProduct",
                        "#DefaultContainer.RetrieveProduct",
                        uriInfo.getAbsolutePath().toASCIIString() + "/RetrieveProduct");
            }

            return replaceServiceName(utils.getValue().createResponse(entity,
                    Commons.getETag(entityInfo.getKey(), ODataServiceVersion.V30), utils.getKey()));
        } catch (Exception e) {
            LOG.error("Error retrieving entity", e);
            return replaceServiceName(xml.createFaultResponse(accept, e));
        }
    }

    @POST
    @Path("/OrderLine(OrderId={orderId},ProductId={productId})/{path:.*RetrieveProduct}")
    public Response orderLineBoundRetrieveProduct(
            @HeaderParam("Accept") @DefaultValue(StringUtils.EMPTY) final String accept,
            @QueryParam("$format") @DefaultValue(StringUtils.EMPTY) final String format,
            @HeaderParam("Content-Type") @DefaultValue(StringUtils.EMPTY) final String contentType) {

        return unboundRetrieveProduct(accept, format, contentType);
    }

}