com.google.walkaround.wave.server.attachment.AttachmentUploadHandler.java Source code

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Here is the source code for com.google.walkaround.wave.server.attachment.AttachmentUploadHandler.java

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/*
 * Copyright 2011 Google Inc. All Rights Reserved.
 *
 * 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.google.walkaround.wave.server.attachment;

import com.google.appengine.api.blobstore.BlobKey;
import com.google.appengine.api.blobstore.BlobstoreService;
import com.google.common.collect.Iterables;
import com.google.gxp.base.GxpContext;
import com.google.inject.Inject;
import com.google.walkaround.util.server.servlet.AbstractHandler;
import com.google.walkaround.wave.server.Flag;
import com.google.walkaround.wave.server.FlagName;
import com.google.walkaround.wave.server.gxp.UploadResult;

import java.io.IOException;
import java.util.List;
import java.util.Map;
import java.util.logging.Logger;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

/**
 * Handles attachment uploads.
 *
 * @author danilatos@google.com (Daniel Danilatos)
 */
public class AttachmentUploadHandler extends AbstractHandler {
    @SuppressWarnings("unused")
    private static final Logger log = Logger.getLogger(AttachmentUploadHandler.class.getName());

    /**
     * Attachment file upload form field name.
     */
    static final String ATTACHMENT_UPLOAD_PARAM = "attachment";

    @Inject
    BlobstoreService blobstoreService;
    @Inject
    MetadataDirectory metadataDirectory;
    @Inject
    RawAttachmentService rawAttachmentService;
    @Inject
    @Flag(FlagName.ANALYTICS_ACCOUNT)
    String analyticsAccount;

    @Override
    public void doPost(HttpServletRequest req, HttpServletResponse resp) throws IOException {
        Map<String, List<BlobKey>> blobs = blobstoreService.getUploads(req);
        List<BlobKey> blobKeys = blobs.get(ATTACHMENT_UPLOAD_PARAM);
        log.info("blobKeys: " + blobKeys);
        BlobKey blobKey = Iterables.getOnlyElement(blobKeys);
        AttachmentId newId = rawAttachmentService.turnBlobIntoAttachment(blobKey);
        UploadResult.write(resp.getWriter(), new GxpContext(getLocale(req)), analyticsAccount, newId.getId());
    }

}