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Apache CXF example source code file (LazyDataSource.java)
The Apache CXF LazyDataSource.java source code/** * 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.cxf.attachment; import java.io.IOException; import java.io.InputStream; import java.io.OutputStream; import java.util.Collection; import javax.activation.DataSource; import org.apache.cxf.message.Attachment; /** * A DataSource which will search through a Collection of attachments so as to * lazily load the attachment from the collection. This allows streaming attachments * with databinding toolkits like JAXB. */ public class LazyDataSource implements DataSource { private DataSource dataSource; private Collection<Attachment> attachments; private String id; public LazyDataSource(String id, Collection<Attachment> attachments) { super(); this.id = id; this.attachments = attachments; } private synchronized void load() { if (dataSource == null) { for (Attachment a : attachments) { if (a.getId().equals(id)) { this.dataSource = a.getDataHandler().getDataSource(); break; } } } } public String getContentType() { load(); return dataSource.getContentType(); } public InputStream getInputStream() throws IOException { load(); return dataSource.getInputStream(); } public String getName() { load(); return dataSource.getName(); } public OutputStream getOutputStream() throws IOException { load(); return dataSource.getOutputStream(); } public DataSource getDataSource() { return dataSource; } public void setDataSource(DataSource dataSource) { this.dataSource = dataSource; } } Other Apache CXF examples (source code examples)Here is a short list of links related to this Apache CXF LazyDataSource.java source code file: |
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