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/**
* 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.jaxrs.ext.multipart;
import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.lang.annotation.Annotation;
import java.util.Iterator;
import java.util.List;
import java.util.UUID;
import javax.activation.DataHandler;
import javax.activation.DataSource;
import javax.ws.rs.core.MediaType;
import javax.ws.rs.core.MultivaluedMap;
import javax.ws.rs.ext.MessageBodyReader;
import javax.ws.rs.ext.Providers;
import org.apache.cxf.helpers.IOUtils;
import org.apache.cxf.io.Transferable;
import org.apache.cxf.jaxrs.impl.MetadataMap;
import org.apache.cxf.jaxrs.utils.ExceptionUtils;
import org.apache.cxf.jaxrs.utils.JAXRSUtils;
/**
* This class represents an attachment; generally a multipart part.
* Some constructors in here are intended only for
* internal use in CXF, others are suitable or preparing
* attachments to pass to the {@link org.apache.cxf.jaxrs.client.WebClient} API.
* See the {@link AttachmentBuilder} for a convenient
* way to create attachments for use with {@link org.apache.cxf.jaxrs.client.WebClient}.
*/
public class Attachment implements Transferable {
private DataHandler handler;
private MultivaluedMap headers =
new MetadataMap<>(false, true);
private Object object;
private Providers providers;
public Attachment(org.apache.cxf.message.Attachment a,
Providers providers) {
handler = a.getDataHandler();
for (Iterator i = a.getHeaderNames(); i.hasNext();) {
String name = i.next();
if ("Content-ID".equalsIgnoreCase(name)) {
continue;
}
headers.add(name, a.getHeader(name));
}
headers.putSingle("Content-ID", a.getId());
this.providers = providers;
}
public Attachment(String id, DataHandler dh, MultivaluedMap headers) {
handler = dh;
this.headers = new MetadataMap<>(headers, false, true);
this.headers.putSingle("Content-ID", id);
}
public Attachment(String id, DataSource ds, MultivaluedMap headers) {
this(id, new DataHandler(ds), headers);
}
public Attachment(MultivaluedMap headers, Object object) {
this.headers = headers;
this.object = object;
}
public Attachment(InputStream is, MultivaluedMap headers) {
this(headers.getFirst("Content-ID"),
new DataHandler(new InputStreamDataSource(is, headers.getFirst("Content-Type"))),
headers);
}
public Attachment(String mediaType, Object object) {
this(UUID.randomUUID().toString(), mediaType, object);
}
public Attachment(String id, String mediaType, Object object) {
this.object = object;
if (id != null) {
headers.putSingle("Content-ID", id);
}
headers.putSingle("Content-Type", mediaType);
}
public Attachment(String id, InputStream is, ContentDisposition cd) {
handler = new DataHandler(new InputStreamDataSource(is, "application/octet-stream"));
if (cd != null) {
headers.putSingle("Content-Disposition", cd.toString());
}
headers.putSingle("Content-ID", id);
headers.putSingle("Content-Type", "application/octet-stream");
}
public Attachment(MultivaluedMap headers, DataHandler handler, Object object) {
this.headers = headers;
this.handler = handler;
this.object = object;
}
public ContentDisposition getContentDisposition() {
String header = getHeader("Content-Disposition");
return header == null ? null : new ContentDisposition(header);
}
public String getContentId() {
return headers.getFirst("Content-ID");
}
public MediaType getContentType() {
String value = handler != null && handler.getContentType() != null ? handler.getContentType()
: headers.getFirst("Content-Type");
return value == null ? MediaType.TEXT_PLAIN_TYPE : JAXRSUtils.toMediaType(value);
}
public DataHandler getDataHandler() {
return handler;
}
public void setDataHandler(DataHandler dataHandler) {
this.handler = dataHandler;
}
public Object getObject() {
return object;
}
public T getObject(Class cls) {
if (providers != null) {
MessageBodyReader mbr =
providers.getMessageBodyReader(cls, cls, new Annotation[]{}, getContentType());
if (mbr != null) {
try {
return mbr.readFrom(cls, cls, new Annotation[]{}, getContentType(),
headers, getDataHandler().getInputStream());
} catch (Exception ex) {
throw ExceptionUtils.toInternalServerErrorException(ex, null);
}
}
}
return null;
}
public String getHeader(String name) {
List header = headers.get(name);
if (header == null || header.isEmpty()) {
return null;
}
StringBuilder sb = new StringBuilder();
for (int i = 0; i < header.size(); i++) {
sb.append(header.get(i));
if (i + 1 < header.size()) {
sb.append(',');
}
}
return sb.toString();
}
public List getHeaderAsList(String name) {
return headers.get(name);
}
public MultivaluedMap getHeaders() {
return new MetadataMap(headers, false, true);
}
public void transferTo(File destinationFile) throws IOException {
IOUtils.transferTo(handler.getInputStream(), destinationFile);
}
@Override
public int hashCode() {
return headers.hashCode();
}
@Override
public boolean equals(Object o) {
if (!(o instanceof Attachment)) {
return false;
}
Attachment other = (Attachment)o;
return headers.equals(other.headers);
}
}
