com.foc.property.FCloudStoragePropertyResource.java Source code

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Here is the source code for com.foc.property.FCloudStoragePropertyResource.java

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/*******************************************************************************
 * Copyright 2016 Antoine Nicolas SAMAHA
 * 
 * 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.foc.property;

import java.io.InputStream;

import com.foc.Globals;
import com.foc.util.Utils;
import com.vaadin.server.ConnectorResource;
import com.vaadin.server.DownloadStream;

@SuppressWarnings("serial")
public class FCloudStoragePropertyResource implements ConnectorResource {

    private FCloudStorageProperty cloudStorageProperty = null;

    public FCloudStoragePropertyResource(FCloudStorageProperty property) {
        this.cloudStorageProperty = property;
    }

    public void dispose() {
        cloudStorageProperty = null;
    }

    @Override
    public DownloadStream getStream() {
        DownloadStream downloadStream = null;

        if (cloudStorageProperty != null) {
            if (Utils.isStringEmpty(cloudStorageProperty.getKey())) {
                Globals.logString("DOWNLOAD: newBlobResource 1 Key Empty, generating it");
                cloudStorageProperty.generateKey();
            }

            Globals.logString("DOWNLOAD: newBlobResource 1bis Key=" + cloudStorageProperty.getKey());

            if (cloudStorageProperty.getDirectory() == null) {
                Globals.logString("DOWNLOAD: newBlobResource 2 Directory null computing it");
                cloudStorageProperty.setDirectory(Globals.getApp().getCloudStorageDirectory(), false);
            }

            Globals.logString("DOWNLOAD: newBlobResource 2bis Key=" + cloudStorageProperty.getDirectory());

            InputStream is = (InputStream) cloudStorageProperty.getObject();

            if (is == null)
                Globals.logString("DOWNLOAD: newBlobResource 3 inputStream is null");
            else
                Globals.logString("DOWNLOAD: newBlobResource 3bis inputStream is Good");

            Globals.logString("DOWNLOAD: newBlobResource 4 FileName : " + cloudStorageProperty.getFileName());

            if (is != null) {
                downloadStream = new DownloadStream(is, "application/x-unknown",
                        cloudStorageProperty.getFileName());
                downloadStream.setParameter("Content-Disposition", "attachment; filename="
                        + DownloadStream.getContentDispositionFilename(cloudStorageProperty.getFileName()));
                downloadStream.setCacheTime(0);
            }
        }

        return downloadStream;
    }

    @Override
    public String getMIMEType() {
        return null;
    }

    @Override
    public String getFilename() {
        String fileName = "file";
        if (cloudStorageProperty != null) {
            fileName = cloudStorageProperty.getFileName();
        }
        return fileName;
    }
}