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/*
* The MIT License
* Copyright (c) 2012 Microsoft Corporation
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
package microsoft.exchange.webservices.data.property.complex;
import microsoft.exchange.webservices.data.core.EwsServiceXmlReader;
import microsoft.exchange.webservices.data.core.EwsServiceXmlWriter;
import microsoft.exchange.webservices.data.core.EwsUtilities;
import microsoft.exchange.webservices.data.core.XmlAttributeNames;
import microsoft.exchange.webservices.data.core.XmlElementNames;
import microsoft.exchange.webservices.data.core.exception.service.local.ServiceValidationException;
import microsoft.exchange.webservices.data.core.service.item.Item;
import microsoft.exchange.webservices.data.core.enumeration.property.BodyType;
import microsoft.exchange.webservices.data.core.enumeration.misc.ExchangeVersion;
import microsoft.exchange.webservices.data.core.enumeration.misc.XmlNamespace;
import microsoft.exchange.webservices.data.core.exception.service.local.ServiceVersionException;
import microsoft.exchange.webservices.data.property.definition.PropertyDefinitionBase;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import java.util.Date;
/**
* Represents an attachment to an item.
*/
public abstract class Attachment extends ComplexProperty {
private static final Log LOG = LogFactory.getLog(Attachment.class);
/**
* The owner.
*/
private Item owner;
/**
* The id.
*/
private String id;
/**
* The name.
*/
private String name;
/**
* The content type.
*/
private String contentType;
/**
* The content id.
*/
private String contentId;
/**
* The content location.
*/
private String contentLocation;
/**
* The size.
*/
private int size;
/**
* The last modified time.
*/
private Date lastModifiedTime;
/**
* The is inline.
*/
private boolean isInline;
/**
* Initializes a new instance.
*
* @param owner The owner.
*/
protected Attachment(Item owner) {
this.owner = owner;
}
/**
* Throws exception if this is not a new service object.
*/
protected void throwIfThisIsNotNew() {
if (!this.isNew()) {
throw new UnsupportedOperationException("Attachments can't be updated.");
}
}
/**
* Sets value of field.
*
* We override the base implementation. Attachments cannot be modified so
* any attempts the change a property on an existing attachment is an error.
*
* @param the generic type
* @param field The field
* @param value The value.
* @return true, if successful
*/
public boolean canSetFieldValue(T field, T value) {
this.throwIfThisIsNotNew();
return super.canSetFieldValue(field, value);
}
/**
* Gets the Id of the attachment.
*
* @return the id
*/
public String getId() {
return this.id;
}
/**
* Gets the name of the attachment.
*
* @return the name
*/
public String getName() {
return this.name;
}
/**
* Sets the name.
*
* @param value the new name
*/
public void setName(String value) {
if (this.canSetFieldValue(this.name, value)) {
this.name = value;
this.changed();
}
}
/**
* Gets the content type of the attachment.
*
* @return the content type
*/
public String getContentType() {
return this.contentType;
}
/**
* Sets the content type.
*
* @param value the new content type
*/
public void setContentType(String value) {
if (this.canSetFieldValue(this.contentType, value)) {
this.contentType = value;
this.changed();
}
}
/**
* Gets the content Id of the attachment. ContentId can be used as a
* custom way to identify an attachment in order to reference it from within
* the body of the item the attachment belongs to.
*
* @return the content id
*/
public String getContentId() {
return this.contentId;
}
/**
* Sets the content id.
*
* @param value the new content id
*/
public void setContentId(String value) {
if (this.canSetFieldValue(this.contentId, value)) {
this.contentId = value;
this.changed();
}
}
/**
* Gets the content location of the attachment. ContentLocation can
* be used to associate an attachment with a Url defining its location on
* the Web.
*
* @return the content location
*/
public String getContentLocation() {
return this.contentLocation;
}
/**
* Sets the content location.
*
* @param value the new content location
*/
public void setContentLocation(String value) {
if (this.canSetFieldValue(this.contentLocation, value)) {
this.contentLocation = value;
this.changed();
}
}
/**
* Gets the size of the attachment.
*
* @return the size
* @throws ServiceVersionException throws ServiceVersionException
*/
public int getSize() throws ServiceVersionException {
EwsUtilities.validatePropertyVersion(this.getOwner().getService(), ExchangeVersion.Exchange2010, "Size");
return this.size;
}
/**
* Gets the date and time when this attachment was last modified.
*
* @return the last modified time
* @throws ServiceVersionException the service version exception
*/
public Date getLastModifiedTime() throws ServiceVersionException {
EwsUtilities.validatePropertyVersion(this.getOwner().getService(),
ExchangeVersion.Exchange2010, "LastModifiedTime");
return this.lastModifiedTime;
}
/**
* Gets a value indicating whether this is an inline attachment.
* Inline attachments are not visible to end users.
*
* @return the checks if is inline
* @throws ServiceVersionException the service version exception
*/
public boolean getIsInline() throws ServiceVersionException {
EwsUtilities.validatePropertyVersion(this.getOwner().getService(),
ExchangeVersion.Exchange2010, "IsInline");
return this.isInline;
}
/**
* Sets the checks if is inline.
*
* @param value the new checks if is inline
* @throws ServiceVersionException the service version exception
*/
public void setIsInline(boolean value) throws ServiceVersionException {
EwsUtilities.validatePropertyVersion(this.getOwner().getService(),
ExchangeVersion.Exchange2010, "IsInline");
if (this.canSetFieldValue(this.isInline, value)) {
this.isInline = value;
this.changed();
}
}
/**
* True if the attachment has not yet been saved, false otherwise.
*
* @return true, if is new
*/
public boolean isNew() {
return (this.getId() == null || this.getId().isEmpty());
}
/**
* Gets the owner of the attachment.
*
* @return the owner
*/
public Item getOwner() {
return this.owner;
}
/**
* Gets the name of the XML element.
*
* @return XML element name.
*/
public abstract String getXmlElementName();
/**
* Tries to read element from XML.
*
* @param reader The reader.
* @return True if element was read.
* @throws Exception the exception
*/
@Override
public boolean tryReadElementFromXml(EwsServiceXmlReader reader)
throws Exception {
try {
if (reader.getLocalName().equalsIgnoreCase(
XmlElementNames.AttachmentId)) {
try {
this.id = reader.readAttributeValue(XmlAttributeNames.Id);
} catch (Exception e) {
LOG.error(e);
return false;
}
if (this.getOwner() != null) {
String rootItemChangeKey = reader
.readAttributeValue(XmlAttributeNames.
RootItemChangeKey);
if (null != rootItemChangeKey &&
!rootItemChangeKey.isEmpty()) {
this.getOwner().getRootItemId().setChangeKey(
rootItemChangeKey);
}
}
reader.readEndElementIfNecessary(XmlNamespace.Types,
XmlElementNames.AttachmentId);
return true;
} else if (reader.getLocalName().equalsIgnoreCase(
XmlElementNames.Name)) {
this.name = reader.readElementValue();
return true;
} else if (reader.getLocalName().equalsIgnoreCase(
XmlElementNames.ContentType)) {
this.contentType = reader.readElementValue();
return true;
} else if (reader.getLocalName().equalsIgnoreCase(
XmlElementNames.ContentId)) {
this.contentId = reader.readElementValue();
return true;
} else if (reader.getLocalName().equalsIgnoreCase(
XmlElementNames.ContentLocation)) {
this.contentLocation = reader.readElementValue();
return true;
} else if (reader.getLocalName().equalsIgnoreCase(
XmlElementNames.Size)) {
this.size = reader.readElementValue(Integer.class);
return true;
} else if (reader.getLocalName().equalsIgnoreCase(
XmlElementNames.LastModifiedTime)) {
this.lastModifiedTime = reader.readElementValueAsDateTime();
return true;
} else if (reader.getLocalName().equalsIgnoreCase(
XmlElementNames.IsInline)) {
this.isInline = reader.readElementValue(Boolean.class);
return true;
} else {
return false;
}
} catch (Exception e) {
LOG.error(e);
return false;
}
}
/**
* Writes elements to XML.
*
* @param writer the writer
* @throws Exception the exception
*/
@Override
public void writeElementsToXml(EwsServiceXmlWriter writer)
throws Exception {
writer.writeElementValue(XmlNamespace.Types, XmlElementNames.Name, this
.getName());
writer.writeElementValue(XmlNamespace.Types,
XmlElementNames.ContentType, this.getContentType());
writer.writeElementValue(XmlNamespace.Types, XmlElementNames.ContentId,
this.getContentId());
writer.writeElementValue(XmlNamespace.Types,
XmlElementNames.ContentLocation, this.getContentLocation());
if (writer.getService().getRequestedServerVersion().ordinal() >
ExchangeVersion.Exchange2007_SP1
.ordinal()) {
writer.writeElementValue(XmlNamespace.Types,
XmlElementNames.IsInline, this.getIsInline());
}
}
/**
* Load the attachment.
*
* @param bodyType Type of the body.
* @param additionalProperties The additional property.
* @throws Exception the exception
*/
protected void internalLoad(BodyType bodyType,
Iterable additionalProperties)
throws Exception {
this.getOwner().getService().getAttachment(this, bodyType,
additionalProperties);
}
/**
* Validates this instance.
*
* @param attachmentIndex Index of this attachment.
* @throws ServiceValidationException the service validation exception
* @throws Exception the exception
*/
abstract void validate(int attachmentIndex) throws Exception;
/**
* Loads the attachment. Calling this method results in a call to EWS.
*
* @throws Exception the exception
*/
public void load() throws Exception {
this.internalLoad(null, null);
}
}
