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

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Here is the source code for org.apache.olingo.fit.Demo.java

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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 java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;

import javax.ws.rs.Consumes;
import javax.ws.rs.DefaultValue;
import javax.ws.rs.GET;
import javax.ws.rs.HeaderParam;
import javax.ws.rs.POST;
import javax.ws.rs.PUT;
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 org.apache.commons.io.IOUtils;
import org.apache.commons.lang3.StringUtils;
import org.apache.olingo.fit.metadata.Metadata;
import org.apache.olingo.fit.methods.PATCH;
import org.apache.olingo.fit.utils.Accept;
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;

@Service
@Path("/V40/Demo.svc")
public class Demo extends Services {

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

    private Response replaceServiceName(final Response response) {
        try {
            final String content = IOUtils.toString((InputStream) response.getEntity(), Constants.ENCODING)
                    .replaceAll("Static\\.svc", "Demo.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("demo" + StringUtils.capitalize(Constants.get(ConstantKey.METADATA)));
    }

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

        return replaceServiceName(super.getEntityInternal(uriInfo.getRequestUri().toASCIIString(), accept,
                entitySetName, entityId, format, expand, select));
    }

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

        return super.getMediaEntity(uriInfo, accept, entitySetName, entityId);
    }

    @POST
    @Path("/{entitySetName}")
    @Produces({ MediaType.APPLICATION_XML, MediaType.APPLICATION_ATOM_XML, MediaType.APPLICATION_JSON })
    @Consumes({ MediaType.APPLICATION_ATOM_XML, MediaType.APPLICATION_JSON, MediaType.APPLICATION_OCTET_STREAM })
    @Override
    public Response postNewEntity(@Context final UriInfo uriInfo,
            @HeaderParam("Accept") @DefaultValue(StringUtils.EMPTY) final String accept,
            @HeaderParam("Content-Type") @DefaultValue(StringUtils.EMPTY) final String contentType,
            @HeaderParam("Prefer") @DefaultValue(StringUtils.EMPTY) final String prefer,
            @PathParam("entitySetName") final String entitySetName, final String entity) {

        return replaceServiceName(super.postNewEntity(uriInfo, accept, contentType, prefer, entitySetName, entity));
    }

    @PATCH
    @Path("/{entitySetName}({entityId})")
    @Produces({ MediaType.APPLICATION_XML, MediaType.APPLICATION_ATOM_XML, MediaType.APPLICATION_JSON })
    @Consumes({ MediaType.APPLICATION_ATOM_XML, MediaType.APPLICATION_JSON })
    @Override
    public Response patchEntity(@Context final UriInfo uriInfo,
            @HeaderParam("Accept") @DefaultValue(StringUtils.EMPTY) final String accept,
            @HeaderParam("Content-Type") @DefaultValue(StringUtils.EMPTY) final String contentType,
            @HeaderParam("Prefer") @DefaultValue(StringUtils.EMPTY) final String prefer,
            @HeaderParam("If-Match") @DefaultValue(StringUtils.EMPTY) final String ifMatch,
            @PathParam("entitySetName") final String entitySetName, @PathParam("entityId") final String entityId,
            final String changes) {

        return replaceServiceName(
                super.patchEntity(uriInfo, accept, contentType, prefer, ifMatch, entitySetName, entityId, changes));
    }

    @PUT
    @Produces({ MediaType.APPLICATION_ATOM_XML, MediaType.APPLICATION_JSON })
    @Consumes({ MediaType.WILDCARD, MediaType.APPLICATION_OCTET_STREAM })
    @Path("/{entitySetName}({entityId})/$value")
    @Override
    public Response replaceMediaEntity(@Context final UriInfo uriInfo,
            @HeaderParam("Prefer") @DefaultValue(StringUtils.EMPTY) final String prefer,
            @PathParam("entitySetName") final String entitySetName, @PathParam("entityId") final String entityId,
            final String value) {

        return super.replaceMediaEntity(uriInfo, prefer, entitySetName, entityId, value);
    }
}