javax.xml.soap.AttachmentPart Maven / Gradle / Ivy
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package javax.xml.soap;
import java.io.InputStream;
import java.io.Reader;
import java.util.Iterator;
import javax.activation.DataHandler;
/**
* A single attachment to a SOAPMessage object. A SOAPMessage
* object may contain zero, one, or many AttachmentPart objects.
* Each AttachmentPart object consists of two parts,
* application-specific content and associated MIME headers. The
* MIME headers consists of name/value pairs that can be used to
* identify and describe the content.
*
* An AttachmentPart object must conform to certain standards.
*
* - It must conform to
* MIME [RFC2045] standards
*
- It MUST contain content
*
- The header portion MUST include the following header:
*
* Content-Type
* This header identifies the type of data in the content of an
* AttachmentPart object and MUST conform to [RFC2045].
* The following is an example of a Content-Type header:
*
* Content-Type: application/xml
*
* The following line of code, in which ap is an
* AttachmentPart object, sets the header shown in
* the previous example.
*
* ap.setMimeHeader("Content-Type", "application/xml");
*
*
*
*
*
* There are no restrictions on the content portion of an
* AttachmentPart object. The content may be anything from a
* simple plain text object to a complex XML document or image file.
*
*
* An AttachmentPart object is created with the method
* SOAPMessage.createAttachmentPart. After setting its MIME headers,
* the AttachmentPart object is added to the message
* that created it with the method SOAPMessage.addAttachmentPart.
*
*
* The following code fragment, in which m is a
* SOAPMessage object and contentStringl is a
* String, creates an instance of AttachmentPart,
* sets the AttachmentPart object with some content and
* header information, and adds the AttachmentPart object to
* the SOAPMessage object.
*
* AttachmentPart ap1 = m.createAttachmentPart();
* ap1.setContent(contentString1, "text/plain");
* m.addAttachmentPart(ap1);
*
*
*
*
* The following code fragment creates and adds a second
* AttachmentPart instance to the same message. jpegData
* is a binary byte buffer representing the jpeg file.
*
* AttachmentPart ap2 = m.createAttachmentPart();
* byte[] jpegData = ...;
* ap2.setContent(new ByteArrayInputStream(jpegData), "image/jpeg");
* m.addAttachmentPart(ap2);
*
*
* The getContent method retrieves the contents and header from
* an AttachmentPart object. Depending on the
* DataContentHandler objects present, the returned
* Object can either be a typed Java object corresponding
* to the MIME type or an InputStream object that contains the
* content as bytes.
*
* String content1 = ap1.getContent();
* java.io.InputStream content2 = ap2.getContent();
*
*
* The method clearContent removes all the content from an
* AttachmentPart object but does not affect its header information.
*
* ap1.clearContent();
*
*/
public abstract class AttachmentPart {
/**
* Returns the number of bytes in this AttachmentPart
* object.
*
* @return the size of this AttachmentPart object in bytes
* or -1 if the size cannot be determined
* @exception SOAPException if the content of this attachment is
* corrupted of if there was an exception while trying
* to determine the size.
*/
public abstract int getSize() throws SOAPException;
/**
* Clears out the content of this AttachmentPart object.
* The MIME header portion is left untouched.
*/
public abstract void clearContent();
/**
* Gets the content of this AttachmentPart object as a Java
* object. The type of the returned Java object depends on (1) the
* DataContentHandler object that is used to interpret the bytes
* and (2) the Content-Type given in the header.
*
* For the MIME content types "text/plain", "text/html" and "text/xml", the
* DataContentHandler object does the conversions to and
* from the Java types corresponding to the MIME types.
* For other MIME types,the DataContentHandler object
* can return an InputStream object that contains the content data
* as raw bytes.
*
* A SAAJ-compliant implementation must, as a minimum, return a
* java.lang.String object corresponding to any content
* stream with a Content-Type value of
* text/plain, a
* javax.xml.transform.stream.StreamSource object corresponding to a
* content stream with a Content-Type value of
* text/xml, a java.awt.Image object
* corresponding to a content stream with a
* Content-Type value of image/gif or
* image/jpeg. For those content types that an
* installed DataContentHandler object does not understand, the
* DataContentHandler object is required to return a
* java.io.InputStream object with the raw bytes.
*
* @return a Java object with the content of this AttachmentPart
* object
*
* @exception SOAPException if there is no content set into this
* AttachmentPart object or if there was a data
* transformation error
*/
public abstract Object getContent() throws SOAPException;
/**
* Gets the content of this AttachmentPart object as an
* InputStream as if a call had been made to getContent and no
* DataContentHandler had been registered for the
* content-type of this AttachmentPart.
*
* Note that reading from the returned InputStream would result in consuming
* the data in the stream. It is the responsibility of the caller to reset
* the InputStream appropriately before calling a Subsequent API. If a copy
* of the raw attachment content is required then the {@link #getRawContentBytes} API
* should be used instead.
*
* @return an InputStream from which the raw data contained by
* the AttachmentPart can be accessed.
*
* @throws SOAPException if there is no content set into this
* AttachmentPart object or if there was a data
* transformation error.
*
* @since SAAJ 1.3
* @see #getRawContentBytes
*/
public abstract InputStream getRawContent() throws SOAPException;
/**
* Gets the content of this AttachmentPart object as a
* byte[] array as if a call had been made to getContent and no
* DataContentHandler had been registered for the
* content-type of this AttachmentPart.
*
* @return a byte[] array containing the raw data of the
* AttachmentPart.
*
* @throws SOAPException if there is no content set into this
* AttachmentPart object or if there was a data
* transformation error.
*
* @since SAAJ 1.3
*/
public abstract byte[] getRawContentBytes() throws SOAPException;
/**
* Returns an InputStream which can be used to obtain the
* content of AttachmentPart as Base64 encoded
* character data, this method would base64 encode the raw bytes
* of the attachment and return.
*
* @return an InputStream from which the Base64 encoded
* AttachmentPart can be read.
*
* @throws SOAPException if there is no content set into this
* AttachmentPart object or if there was a data
* transformation error.
*
* @since SAAJ 1.3
*/
public abstract InputStream getBase64Content() throws SOAPException;
/**
* Sets the content of this attachment part to that of the given
* Object and sets the value of the Content-Type
* header to the given type. The type of the
* Object should correspond to the value given for the
* Content-Type. This depends on the particular
* set of DataContentHandler objects in use.
*
*
* @param object the Java object that makes up the content for
* this attachment part
* @param contentType the MIME string that specifies the type of
* the content
*
* @exception IllegalArgumentException may be thrown if the contentType
* does not match the type of the content object, or if there
* was no DataContentHandler object for this
* content object
*
* @see #getContent
*/
public abstract void setContent(Object object, String contentType);
/**
* Sets the content of this attachment part to that contained by the
* InputStream content and sets the value of the
* Content-Type header to the value contained in
* contentType.
*
* A subsequent call to getSize() may not be an exact measure
* of the content size.
*
* @param content the raw data to add to the attachment part
* @param contentType the value to set into the Content-Type
* header
*
* @exception SOAPException if an there is an error in setting the content
* @exception NullPointerException if content is null
* @since SAAJ 1.3
*/
public abstract void setRawContent(InputStream content, String contentType) throws SOAPException;
/**
* Sets the content of this attachment part to that contained by the
* byte[] array content and sets the value of the
* Content-Type header to the value contained in
* contentType.
*
* @param content the raw data to add to the attachment part
* @param contentType the value to set into the Content-Type
* header
* @param offset the offset in the byte array of the content
* @param len the number of bytes that form the content
*
* @exception SOAPException if an there is an error in setting the content
* or content is null
* @since SAAJ 1.3
*/
public abstract void setRawContentBytes(
byte[] content, int offset, int len, String contentType)
throws SOAPException;
/**
* Sets the content of this attachment part from the Base64 source
* InputStream and sets the value of the
* Content-Type header to the value contained in
* contentType, This method would first decode the base64
* input and write the resulting raw bytes to the attachment.
*
* A subsequent call to getSize() may not be an exact measure
* of the content size.
*
* @param content the base64 encoded data to add to the attachment part
* @param contentType the value to set into the Content-Type
* header
*
* @exception SOAPException if an there is an error in setting the content
* @exception NullPointerException if content is null
*
* @since SAAJ 1.3
*/
public abstract void setBase64Content(
InputStream content, String contentType) throws SOAPException;
/**
* Gets the DataHandler object for this AttachmentPart
* object.
*
* @return the DataHandler object associated with this
* AttachmentPart object
*
* @exception SOAPException if there is no data in
* this AttachmentPart object
*/
public abstract DataHandler getDataHandler()
throws SOAPException;
/**
* Sets the given DataHandler object as the data handler
* for this AttachmentPart object. Typically, on an incoming
* message, the data handler is automatically set. When
* a message is being created and populated with content, the
* setDataHandler method can be used to get data from
* various data sources into the message.
*
* @param dataHandler the DataHandler object to be set
*
* @exception IllegalArgumentException if there was a problem with
* the specified DataHandler object
*/
public abstract void setDataHandler(DataHandler dataHandler);
/**
* Gets the value of the MIME header whose name is "Content-ID".
*
* @return a String giving the value of the
* "Content-ID" header or null if there
* is none
* @see #setContentId
*/
public String getContentId() {
String[] values = getMimeHeader("Content-ID");
if (values != null && values.length > 0)
return values[0];
return null;
}
/**
* Gets the value of the MIME header whose name is "Content-Location".
*
* @return a String giving the value of the
* "Content-Location" header or null if there
* is none
*/
public String getContentLocation() {
String[] values = getMimeHeader("Content-Location");
if (values != null && values.length > 0)
return values[0];
return null;
}
/**
* Gets the value of the MIME header whose name is "Content-Type".
*
* @return a String giving the value of the
* "Content-Type" header or null if there
* is none
*/
public String getContentType() {
String[] values = getMimeHeader("Content-Type");
if (values != null && values.length > 0)
return values[0];
return null;
}
/**
* Sets the MIME header whose name is "Content-ID" with the given value.
*
* @param contentId a String giving the value of the
* "Content-ID" header
*
* @exception IllegalArgumentException if there was a problem with
* the specified contentId value
* @see #getContentId
*/
public void setContentId(String contentId)
{
setMimeHeader("Content-ID", contentId);
}
/**
* Sets the MIME header whose name is "Content-Location" with the given value.
*
*
* @param contentLocation a String giving the value of the
* "Content-Location" header
* @exception IllegalArgumentException if there was a problem with
* the specified content location
*/
public void setContentLocation(String contentLocation)
{
setMimeHeader("Content-Location", contentLocation);
}
/**
* Sets the MIME header whose name is "Content-Type" with the given value.
*
* @param contentType a String giving the value of the
* "Content-Type" header
*
* @exception IllegalArgumentException if there was a problem with
* the specified content type
*/
public void setContentType(String contentType)
{
setMimeHeader("Content-Type", contentType);
}
/**
* Removes all MIME headers that match the given name.
*
* @param header the string name of the MIME header/s to
* be removed
*/
public abstract void removeMimeHeader(String header);
/**
* Removes all the MIME header entries.
*/
public abstract void removeAllMimeHeaders();
/**
* Gets all the values of the header identified by the given
* String.
*
* @param name the name of the header; example: "Content-Type"
* @return a String array giving the value for the
* specified header
* @see #setMimeHeader
*/
public abstract String[] getMimeHeader(String name);
/**
* Changes the first header entry that matches the given name
* to the given value, adding a new header if no existing header
* matches. This method also removes all matching headers but the first.
*
* Note that RFC822 headers can only contain US-ASCII characters.
*
* @param name a String giving the name of the header
* for which to search
* @param value a String giving the value to be set for
* the header whose name matches the given name
*
* @exception IllegalArgumentException if there was a problem with
* the specified mime header name or value
*/
public abstract void setMimeHeader(String name, String value);
/**
* Adds a MIME header with the specified name and value to this
* AttachmentPart object.
*
* Note that RFC822 headers can contain only US-ASCII characters.
*
* @param name a String giving the name of the header
* to be added
* @param value a String giving the value of the header
* to be added
*
* @exception IllegalArgumentException if there was a problem with
* the specified mime header name or value
*/
public abstract void addMimeHeader(String name, String value);
/**
* Retrieves all the headers for this AttachmentPart object
* as an iterator over the MimeHeader objects.
*
* @return an Iterator object with all of the Mime
* headers for this AttachmentPart object
*/
public abstract Iterator getAllMimeHeaders();
/**
* Retrieves all MimeHeader objects that match a name in
* the given array.
*
* @param names a String array with the name(s) of the
* MIME headers to be returned
* @return all of the MIME headers that match one of the names in the
* given array as an Iterator object
*/
public abstract Iterator getMatchingMimeHeaders(String[] names);
/**
* Retrieves all MimeHeader objects whose name does
* not match a name in the given array.
*
* @param names a String array with the name(s) of the
* MIME headers not to be returned
* @return all of the MIME headers in this AttachmentPart object
* except those that match one of the names in the
* given array. The nonmatching MIME headers are returned as an
* Iterator object.
*/
public abstract Iterator getNonMatchingMimeHeaders(String[] names);
}