| /** |
| * 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 javax.activation.DataSource; |
| |
| import org.apache.cxf.helpers.IOUtils; |
| import org.apache.cxf.io.CacheSizeExceededException; |
| import org.apache.cxf.io.CachedOutputStream; |
| import org.apache.cxf.message.Message; |
| |
| public class AttachmentDataSource implements DataSource { |
| |
| private final String ct; |
| private CachedOutputStream cache; |
| private InputStream ins; |
| private DelegatingInputStream delegate; |
| private String name; |
| |
| public AttachmentDataSource(String ctParam, InputStream inParam) { |
| this.ct = ctParam; |
| ins = inParam; |
| } |
| |
| public boolean isCached() { |
| return cache != null; |
| } |
| public void cache(Message message) throws IOException { |
| if (cache == null) { |
| cache = new CachedOutputStream(); |
| AttachmentUtil.setStreamedAttachmentProperties(message, cache); |
| try { |
| IOUtils.copyAndCloseInput(ins, cache); |
| cache.lockOutputStream(); |
| if (delegate != null) { |
| delegate.setInputStream(cache.getInputStream()); |
| } |
| } catch (CacheSizeExceededException | IOException cee) { |
| cache.close(); |
| cache = null; |
| throw cee; |
| } finally { |
| ins = null; |
| } |
| } |
| } |
| public void hold(Message message) throws IOException { |
| cache(message); |
| cache.holdTempFile(); |
| } |
| public void release() { |
| if (cache != null) { |
| cache.releaseTempFileHold(); |
| } |
| } |
| |
| public String getContentType() { |
| return ct; |
| } |
| |
| public InputStream getInputStream() { |
| try { |
| if (cache != null) { |
| return cache.getInputStream(); |
| } |
| if (delegate == null) { |
| delegate = new DelegatingInputStream(ins); |
| } |
| return delegate; |
| } catch (IOException e) { |
| return null; |
| } |
| } |
| |
| public String getName() { |
| return name; |
| } |
| |
| public void setName(String name) { |
| this.name = name; |
| } |
| |
| public OutputStream getOutputStream() throws IOException { |
| throw new UnsupportedOperationException(); |
| } |
| } |