jakartaee-10.0/javadoc/jakarta/ws/rs/core/EntityPart.html - tomee-site-pub - Git at Google

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 <div class="subTitle">jakarta.ws.rs.core</div>
 <h2 title="Interface EntityPart" class="title">Interface EntityPart</h2>
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 <pre>public interface <span class="typeNameLabel">EntityPart</span></pre>
 <div class="block">A <code>EntityPart</code> is one part of a multipart entity. As defined in
  <a href="https://tools.ietf.org/html/rfc7578">RFC 7578</a>, a multipart
  request or response must have a content type of "multipart/form-data" with a
  <code>boundary</code> parameter indicating where one part ends the next may begin.
  <p>
  Multipart entities may be received in a resource method as a collection of
  parts (e.g. <code>List&lt;EntityPart&gt;</code>) or as a form parameter (ex:
  <code>@FormParam("part1Name") EntityPart part1</code>).
  </p>
  <p>
  Likewise, a client may receive a multipart response by reading the returned
  entity as a collection of EntityParts (ex: <code>response.readEntity(new
  GenericType&lt;List&lt;EntityPart&gt;&gt;() {})</code>).
  </p>
  <p>
  In order to send a multipart entity either as a client request or a response
  from a resource method, you may create the Lists using
  <code>EntityPart.Builder</code>. For example:
  </p>

  <pre>
  Client c = ClientBuilder.newClient();
 WebTarget target = c.target(someURL);
 List&lt;EntityPart&gt; parts = Arrays.asList(
      EntityPart.withName("name1").fileName("file1.doc").content(stream1).build(),
      EntityPart.withName("name2").fileName("file2.doc").content(stream2).build(),
      EntityPart.withName("name3").fileName("file3.xml").content(myObject, MyClass.class).mediaType("application/xml").build());
 GenericEntity&lt;List&lt;EntityPart&gt;&gt; genericEntity = new GenericEntity&lt;&gt;(parts){};
 Entity entity = Entity.entity(genericEntity, MediaType.MULTIPART_FORM_DATA);
 Response r = target.request().post(entity);
  </pre>

  Note that when building a EntityPart, the name and content are required.
  Other properties such as headers, file name, and media type are optional.

  It is the responsibility of the implementation code to close the content
  input streams when sending the multipart content. Closing the stream before
  the implementation has sent it could result in unexpected exceptions. It is
  the responsibility of the calling code to close the stream when receiving the
  multipart content.</div>
 <dl>
 <dt><span class="simpleTagLabel">Since:</span></dt>
 <dd>3.1</dd>
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 <th class="colFirst" scope="col">Modifier and Type</th>
 <th class="colLast" scope="col">Interface and Description</th>
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 <tr class="altColor">
 <td class="colFirst"><code>static interface&nbsp;</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../jakarta/ws/rs/core/EntityPart.Builder.html" title="interface in jakarta.ws.rs.core">EntityPart.Builder</a></span></code>
 <div class="block">Builder for <a href="../../../../jakarta/ws/rs/core/EntityPart.html" title="interface in jakarta.ws.rs.core"><code>EntityPart</code></a> instances.</div>
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 <th class="colLast" scope="col">Method and Description</th>
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 <tr id="i0" class="altColor">
 <td class="colFirst"><code>java.io.InputStream</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../jakarta/ws/rs/core/EntityPart.html#getContent--">getContent</a></span>()</code>
 <div class="block">Returns the input stream for this part.</div>
 </td>
 </tr>
 <tr id="i1" class="rowColor">
 <td class="colFirst"><code>&lt;T&gt;&nbsp;T</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../jakarta/ws/rs/core/EntityPart.html#getContent-java.lang.Class-">getContent</a></span>(java.lang.Class&lt;T&gt;&nbsp;type)</code>
 <div class="block">Converts the content stream for this part to the specified class and returns
  it.</div>
 </td>
 </tr>
 <tr id="i2" class="altColor">
 <td class="colFirst"><code>&lt;T&gt;&nbsp;T</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../jakarta/ws/rs/core/EntityPart.html#getContent-jakarta.ws.rs.core.GenericType-">getContent</a></span>(<a href="../../../../jakarta/ws/rs/core/GenericType.html" title="class in jakarta.ws.rs.core">GenericType</a>&lt;T&gt;&nbsp;type)</code>
 <div class="block">Converts the content stream for this part to the specified type and returns
  it.</div>
 </td>
 </tr>
 <tr id="i3" class="rowColor">
 <td class="colFirst"><code>java.util.Optional&lt;java.lang.String&gt;</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../jakarta/ws/rs/core/EntityPart.html#getFileName--">getFileName</a></span>()</code>
 <div class="block">Returns the filename of this part.</div>
 </td>
 </tr>
 <tr id="i4" class="altColor">
 <td class="colFirst"><code><a href="../../../../jakarta/ws/rs/core/MultivaluedMap.html" title="interface in jakarta.ws.rs.core">MultivaluedMap</a>&lt;java.lang.String,java.lang.String&gt;</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../jakarta/ws/rs/core/EntityPart.html#getHeaders--">getHeaders</a></span>()</code>
 <div class="block">Returns an immutable multivalued map of headers for this specific part.</div>
 </td>
 </tr>
 <tr id="i5" class="rowColor">
 <td class="colFirst"><code><a href="../../../../jakarta/ws/rs/core/MediaType.html" title="class in jakarta.ws.rs.core">MediaType</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../jakarta/ws/rs/core/EntityPart.html#getMediaType--">getMediaType</a></span>()</code>
 <div class="block">Returns the content type of this part, and equivalent to calling
  <code>MediaType.valueOf(part.getHeaders().getFirst(HttpHeaders.CONTENT_TYPE))</code>.</div>
 </td>
 </tr>
 <tr id="i6" class="altColor">
 <td class="colFirst"><code>java.lang.String</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../jakarta/ws/rs/core/EntityPart.html#getName--">getName</a></span>()</code>
 <div class="block">Returns the name of this part within the multipart entity.</div>
 </td>
 </tr>
 <tr id="i7" class="rowColor">
 <td class="colFirst"><code>static <a href="../../../../jakarta/ws/rs/core/EntityPart.Builder.html" title="interface in jakarta.ws.rs.core">EntityPart.Builder</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../jakarta/ws/rs/core/EntityPart.html#withFileName-java.lang.String-">withFileName</a></span>(java.lang.String&nbsp;partAndFileName)</code>
 <div class="block">Creates a new <code>EntityPart.Builder</code> instance that sets the part
  <code>name</code> and <code>fileName</code> to the passed in <code>partAndFileName</code>
  value.</div>
 </td>
 </tr>
 <tr id="i8" class="altColor">
 <td class="colFirst"><code>static <a href="../../../../jakarta/ws/rs/core/EntityPart.Builder.html" title="interface in jakarta.ws.rs.core">EntityPart.Builder</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../jakarta/ws/rs/core/EntityPart.html#withName-java.lang.String-">withName</a></span>(java.lang.String&nbsp;partName)</code>
 <div class="block">Creates a new <code>EntityPart.Builder</code> instance.</div>
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 <pre>static&nbsp;<a href="../../../../jakarta/ws/rs/core/EntityPart.Builder.html" title="interface in jakarta.ws.rs.core">EntityPart.Builder</a>&nbsp;withName(java.lang.String&nbsp;partName)</pre>
 <div class="block">Creates a new <code>EntityPart.Builder</code> instance.</div>
 <dl>
 <dt><span class="paramLabel">Parameters:</span></dt>
 <dd><code>partName</code> - name of the part to create within the multipart entity</dd>
 <dt><span class="returnLabel">Returns:</span></dt>
 <dd><a href="../../../../jakarta/ws/rs/core/EntityPart.Builder.html" title="interface in jakarta.ws.rs.core"><code>EntityPart.Builder</code></a> for building new <a href="../../../../jakarta/ws/rs/core/EntityPart.html" title="interface in jakarta.ws.rs.core"><code>EntityPart</code></a> instances</dd>
 </dl>
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 <pre>static&nbsp;<a href="../../../../jakarta/ws/rs/core/EntityPart.Builder.html" title="interface in jakarta.ws.rs.core">EntityPart.Builder</a>&nbsp;withFileName(java.lang.String&nbsp;partAndFileName)</pre>
 <div class="block">Creates a new <code>EntityPart.Builder</code> instance that sets the part
  <code>name</code> and <code>fileName</code> to the passed in <code>partAndFileName</code>
  value.
  <p>
  Logically, this is the same as <code>EntityPart.withName(x).fileName(x)</code>.
  </p></div>
 <dl>
 <dt><span class="paramLabel">Parameters:</span></dt>
 <dd><code>partAndFileName</code> - name and filename of the part to create within the
                         multipart entity</dd>
 <dt><span class="returnLabel">Returns:</span></dt>
 <dd><a href="../../../../jakarta/ws/rs/core/EntityPart.Builder.html" title="interface in jakarta.ws.rs.core"><code>EntityPart.Builder</code></a> for building new <a href="../../../../jakarta/ws/rs/core/EntityPart.html" title="interface in jakarta.ws.rs.core"><code>EntityPart</code></a> instances</dd>
 </dl>
 </li>
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 <a name="getName--">
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 <h4>getName</h4>
 <pre>java.lang.String&nbsp;getName()</pre>
 <div class="block">Returns the name of this part within the multipart entity. This will be the
  "name" attribute of the <code>Content-Disposition</code> header for this part.</div>
 <dl>
 <dt><span class="returnLabel">Returns:</span></dt>
 <dd>the part name</dd>
 </dl>
 </li>
 </ul>
 <a name="getFileName--">
 <!--   -->
 </a>
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 <h4>getFileName</h4>
 <pre>java.util.Optional&lt;java.lang.String&gt;&nbsp;getFileName()</pre>
 <div class="block">Returns the filename of this part. This will be the "filename" attribute of
  the <code>Content-Disposition</code> header for this part. A filename is not
  required in a part, so if a filename is not present it will return
  <code>Optional.empty()</code>.</div>
 <dl>
 <dt><span class="returnLabel">Returns:</span></dt>
 <dd>an <code>Optional&lt;String&gt;</code> indicating the filename if present</dd>
 </dl>
 </li>
 </ul>
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 <h4>getContent</h4>
 <pre>java.io.InputStream&nbsp;getContent()</pre>
 <div class="block">Returns the input stream for this part. This is the content body of the part
  and is accessed as a stream to avoid loading potentially large amounts of
  data into the heap.

  It is the responsibility of the calling code to close this stream after
  receiving it.</div>
 <dl>
 <dt><span class="returnLabel">Returns:</span></dt>
 <dd>an <code>InputStream</code> representing the content of this part</dd>
 </dl>
 </li>
 </ul>
 <a name="getContent-java.lang.Class-">
 <!--   -->
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 <h4>getContent</h4>
 <pre>&lt;T&gt;&nbsp;T&nbsp;getContent(java.lang.Class&lt;T&gt;&nbsp;type)
           throws java.lang.IllegalArgumentException,
                  java.lang.IllegalStateException,
                  java.io.IOException,
                  <a href="../../../../jakarta/ws/rs/WebApplicationException.html" title="class in jakarta.ws.rs">WebApplicationException</a></pre>
 <div class="block">Converts the content stream for this part to the specified class and returns
  it. The implementation must convert the stream by finding a
  <a href="../../../../jakarta/ws/rs/ext/MessageBodyReader.html" title="interface in jakarta.ws.rs.ext"><code>MessageBodyReader</code></a> that handles the specified type
  as well as the <a href="../../../../jakarta/ws/rs/core/MediaType.html" title="class in jakarta.ws.rs.core"><code>MediaType</code></a> of the part. If no
  <a href="../../../../jakarta/ws/rs/ext/MessageBodyReader.html" title="interface in jakarta.ws.rs.ext"><code>MessageBodyReader</code></a> can be found to perform the
  conversion, this method will throw an <code>IllegalArgumentException</code>.

  The implementation is required to close the content stream when this method
  is invoked, so it may only be invoked once. Subsequent invocations will
  result in an <code>IllegalStateException</code>. Likewise this method will throw
  an <code>IllegalStateException</code> if it is called after calling
  <a href="../../../../jakarta/ws/rs/core/EntityPart.html#getContent--"><code>getContent()</code></a> or <a href="../../../../jakarta/ws/rs/core/EntityPart.html#getContent-jakarta.ws.rs.core.GenericType-"><code>getContent(GenericType)</code></a>.</div>
 <dl>
 <dt><span class="paramLabel">Type Parameters:</span></dt>
 <dd><code>T</code> - the entity type</dd>
 <dt><span class="paramLabel">Parameters:</span></dt>
 <dd><code>type</code> - the <code>Class</code> that the implementation should convert this
              part to</dd>
 <dt><span class="returnLabel">Returns:</span></dt>
 <dd>an instance of the specified <code>Class</code> representing the content
          of this part</dd>
 <dt><span class="throwsLabel">Throws:</span></dt>
 <dd><code>java.lang.IllegalArgumentException</code> - if no
                                   <a href="../../../../jakarta/ws/rs/ext/MessageBodyReader.html" title="interface in jakarta.ws.rs.ext"><code>MessageBodyReader</code></a>
                                   can handle the conversion of this part to
                                   the specified type</dd>
 <dd><code>java.lang.IllegalStateException</code> - if this method or any of the other
                                   <code>getContent</code> methods has already been
                                   invoked</dd>
 <dd><code>java.io.IOException</code> - if the
                                   <a href="../../../../jakarta/ws/rs/ext/MessageBodyReader.html#readFrom-java.lang.Class-java.lang.reflect.Type-java.lang.annotation.Annotation:A-jakarta.ws.rs.core.MediaType-jakarta.ws.rs.core.MultivaluedMap-java.io.InputStream-"><code>MessageBodyReader.readFrom(Class,
                                   java.lang.reflect.Type, java.lang.annotation.Annotation[], MediaType, MultivaluedMap, InputStream)</code></a>
                                   method throws an <code>IOException</code></dd>
 <dd><code><a href="../../../../jakarta/ws/rs/WebApplicationException.html" title="class in jakarta.ws.rs">WebApplicationException</a></code> - if the
                                   <a href="../../../../jakarta/ws/rs/ext/MessageBodyReader.html#readFrom-java.lang.Class-java.lang.reflect.Type-java.lang.annotation.Annotation:A-jakarta.ws.rs.core.MediaType-jakarta.ws.rs.core.MultivaluedMap-java.io.InputStream-"><code>MessageBodyReader.readFrom(Class,
                                   java.lang.reflect.Type, java.lang.annotation.Annotation[], MediaType, MultivaluedMap, InputStream)</code></a>
                                   method throws an
                                   <code>WebApplicationException</code></dd>
 </dl>
 </li>
 </ul>
 <a name="getContent-jakarta.ws.rs.core.GenericType-">
 <!--   -->
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 <h4>getContent</h4>
 <pre>&lt;T&gt;&nbsp;T&nbsp;getContent(<a href="../../../../jakarta/ws/rs/core/GenericType.html" title="class in jakarta.ws.rs.core">GenericType</a>&lt;T&gt;&nbsp;type)
           throws java.lang.IllegalArgumentException,
                  java.lang.IllegalStateException,
                  java.io.IOException,
                  <a href="../../../../jakarta/ws/rs/WebApplicationException.html" title="class in jakarta.ws.rs">WebApplicationException</a></pre>
 <div class="block">Converts the content stream for this part to the specified type and returns
  it. The implementation must convert the stream by finding a
  <a href="../../../../jakarta/ws/rs/ext/MessageBodyReader.html" title="interface in jakarta.ws.rs.ext"><code>MessageBodyReader</code></a> that handles the specified type
  as well as the <a href="../../../../jakarta/ws/rs/core/MediaType.html" title="class in jakarta.ws.rs.core"><code>MediaType</code></a> of the part. If no
  <a href="../../../../jakarta/ws/rs/ext/MessageBodyReader.html" title="interface in jakarta.ws.rs.ext"><code>MessageBodyReader</code></a> can be found to perform the
  conversion, this method will throw an <code>IllegalArgumentException</code>.

  The implementation is required to close the content stream when this method
  is invoked, so it may only be invoked once. Subsequent invocations will
  result in an <code>IllegalStateException</code>. Likewise this method will throw
  an <code>IllegalStateException</code> if it is called after calling
  <a href="../../../../jakarta/ws/rs/core/EntityPart.html#getContent--"><code>getContent()</code></a> or <a href="../../../../jakarta/ws/rs/core/EntityPart.html#getContent-java.lang.Class-"><code>getContent(Class)</code></a>.</div>
 <dl>
 <dt><span class="paramLabel">Type Parameters:</span></dt>
 <dd><code>T</code> - the entity type</dd>
 <dt><span class="paramLabel">Parameters:</span></dt>
 <dd><code>type</code> - the generic type that the implementation should convert this part
              to</dd>
 <dt><span class="returnLabel">Returns:</span></dt>
 <dd>an instance of the specified generic type representing the content of
          this part</dd>
 <dt><span class="throwsLabel">Throws:</span></dt>
 <dd><code>java.lang.IllegalArgumentException</code> - if no
                                   <a href="../../../../jakarta/ws/rs/ext/MessageBodyReader.html" title="interface in jakarta.ws.rs.ext"><code>MessageBodyReader</code></a>
                                   can handle the conversion of this part to
                                   the specified type</dd>
 <dd><code>java.lang.IllegalStateException</code> - if this method or any of the other
                                   <code>getContent</code> methods has already been
                                   invoked</dd>
 <dd><code>java.io.IOException</code> - if the
                                   <a href="../../../../jakarta/ws/rs/ext/MessageBodyReader.html#readFrom-java.lang.Class-java.lang.reflect.Type-java.lang.annotation.Annotation:A-jakarta.ws.rs.core.MediaType-jakarta.ws.rs.core.MultivaluedMap-java.io.InputStream-"><code>MessageBodyReader.readFrom(Class,
                                   java.lang.reflect.Type, java.lang.annotation.Annotation[], MediaType, MultivaluedMap, InputStream)</code></a>
                                   method throws an <code>IOException</code></dd>
 <dd><code><a href="../../../../jakarta/ws/rs/WebApplicationException.html" title="class in jakarta.ws.rs">WebApplicationException</a></code> - if the
                                   <a href="../../../../jakarta/ws/rs/ext/MessageBodyReader.html#readFrom-java.lang.Class-java.lang.reflect.Type-java.lang.annotation.Annotation:A-jakarta.ws.rs.core.MediaType-jakarta.ws.rs.core.MultivaluedMap-java.io.InputStream-"><code>MessageBodyReader.readFrom(Class,
                                   java.lang.reflect.Type, java.lang.annotation.Annotation[], MediaType, MultivaluedMap, InputStream)</code></a>
                                   method throws an
                                   <code>WebApplicationException</code></dd>
 </dl>
 </li>
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 <h4>getHeaders</h4>
 <pre><a href="../../../../jakarta/ws/rs/core/MultivaluedMap.html" title="interface in jakarta.ws.rs.core">MultivaluedMap</a>&lt;java.lang.String,java.lang.String&gt;&nbsp;getHeaders()</pre>
 <div class="block">Returns an immutable multivalued map of headers for this specific part.</div>
 <dl>
 <dt><span class="returnLabel">Returns:</span></dt>
 <dd>immutable <code>MultivaluedMap&lt;String, String&gt;</code> of part headers</dd>
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 <h4>getMediaType</h4>
 <pre><a href="../../../../jakarta/ws/rs/core/MediaType.html" title="class in jakarta.ws.rs.core">MediaType</a>&nbsp;getMediaType()</pre>
 <div class="block">Returns the content type of this part, and equivalent to calling
  <code>MediaType.valueOf(part.getHeaders().getFirst(HttpHeaders.CONTENT_TYPE))</code>.</div>
 <dl>
 <dt><span class="returnLabel">Returns:</span></dt>
 <dd>the media type for this part</dd>
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