| /* |
| * 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.oodt.cas.product.jaxrs.writers; |
| |
| import java.io.File; |
| import java.io.FileInputStream; |
| import java.io.IOException; |
| import java.io.OutputStream; |
| import java.lang.annotation.Annotation; |
| import java.lang.reflect.Type; |
| |
| import javax.ws.rs.Produces; |
| import javax.ws.rs.WebApplicationException; |
| import javax.ws.rs.core.MediaType; |
| import javax.ws.rs.core.MultivaluedMap; |
| import javax.ws.rs.ext.MessageBodyWriter; |
| import javax.ws.rs.ext.Provider; |
| |
| import org.apache.commons.io.IOUtils; |
| import org.apache.oodt.cas.product.jaxrs.resources.ProductResource; |
| |
| /** |
| * A {@link Provider} that writes {@link ProductResource product resources} to |
| * output streams for HTTP responses with "application/zip" content-type. |
| * @author rlaidlaw |
| * @version $Revision$ |
| */ |
| @Provider |
| @Produces("application/zip") |
| public class ProductZipWriter implements MessageBodyWriter<ProductResource> |
| { |
| @Override |
| public long getSize(ProductResource resource, Class<?> type, Type genericType, |
| Annotation[] annotations, MediaType mediaType) |
| { |
| return -1; |
| } |
| |
| |
| |
| @Override |
| public boolean isWriteable(Class<?> type, Type genericType, |
| Annotation[] annotations, MediaType mediaType) |
| { |
| return true; |
| } |
| |
| |
| |
| @Override |
| public void writeTo(ProductResource resource, Class<?> type, Type genericType, |
| Annotation[] annotations, MediaType mediaType, |
| MultivaluedMap<String, Object> httpHeaders, OutputStream entityStream) |
| throws IOException, WebApplicationException |
| { |
| // Create a zip file for the product resource. |
| File zipFile = new ProductZipper().createZipFile(resource); |
| |
| // Add the zip file to the HTTP response entity stream. |
| httpHeaders.add("Content-Type", "application/zip"); |
| httpHeaders.add("Content-Disposition", |
| "attachment; filename=\"" + zipFile.getName() + "\""); |
| FileInputStream fis = new FileInputStream(zipFile); |
| IOUtils.copy(fis, entityStream); |
| fis.close(); |
| } |
| } |