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Exchange Web Services (EWS) Java API
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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.core.response;
import microsoft.exchange.webservices.data.core.EwsServiceXmlReader;
import microsoft.exchange.webservices.data.core.XmlAttributeNames;
import microsoft.exchange.webservices.data.core.XmlElementNames;
import microsoft.exchange.webservices.data.core.service.schema.ServiceObjectSchema;
import microsoft.exchange.webservices.data.core.enumeration.misc.error.ServiceError;
import microsoft.exchange.webservices.data.core.enumeration.service.ServiceResult;
import microsoft.exchange.webservices.data.core.enumeration.misc.XmlNamespace;
import microsoft.exchange.webservices.data.core.exception.service.remote.ServiceResponseException;
import microsoft.exchange.webservices.data.misc.SoapFaultDetails;
import microsoft.exchange.webservices.data.property.definition.ExtendedPropertyDefinition;
import microsoft.exchange.webservices.data.property.definition.IndexedPropertyDefinition;
import microsoft.exchange.webservices.data.property.definition.PropertyDefinitionBase;
import java.util.ArrayList;
import java.util.Collection;
import java.util.HashMap;
import java.util.Map;
/**
* Represents the standard response to an Exchange Web Services operation.
*/
public class ServiceResponse {
/**
* The result.
*/
private ServiceResult result;
/**
* The error code.
*/
private ServiceError errorCode;
/**
* The error message.
*/
private String errorMessage;
/**
* The error details.
*/
private Map errorDetails = new HashMap();
/**
* The error property.
*/
private Collection errorProperties =
new ArrayList();
/**
* Initializes a new instance.
*/
public ServiceResponse() {
}
/**
* Initializes a new instance.
*
* @param soapFaultDetails The SOAP fault details.
*/
public ServiceResponse(SoapFaultDetails soapFaultDetails) {
this.result = ServiceResult.Error;
this.errorCode = soapFaultDetails.getResponseCode();
this.errorMessage = soapFaultDetails.getFaultString();
this.errorDetails = soapFaultDetails.getErrorDetails();
}
/**
* Loads response from XML.
*
* @param reader the reader
* @param xmlElementName the xml element name
* @throws Exception the exception
*/
public void loadFromXml(EwsServiceXmlReader reader, String xmlElementName)
throws Exception {
if (!reader.isStartElement(XmlNamespace.Messages, xmlElementName)) {
reader.readStartElement(XmlNamespace.Messages, xmlElementName);
}
this.result = reader.readAttributeValue(ServiceResult.class,
XmlAttributeNames.ResponseClass);
if (this.result == ServiceResult.Success ||
this.result == ServiceResult.Warning) {
if (this.result == ServiceResult.Warning) {
this.errorMessage = reader.readElementValue(
XmlNamespace.Messages, XmlElementNames.MessageText);
}
this.errorCode = reader.readElementValue(ServiceError.class,
XmlNamespace.Messages, XmlElementNames.ResponseCode);
if (this.result == ServiceResult.Warning) {
reader.readElementValue(int.class, XmlNamespace.Messages,
XmlElementNames.DescriptiveLinkKey);
}
// Bug E14:212308 -- If batch processing stopped, EWS returns an
// empty element. Skip over it.
if (this.getBatchProcessingStopped()) {
do {
reader.read();
} while (!reader.isEndElement(XmlNamespace.Messages,
xmlElementName));
} else {
this.readElementsFromXml(reader);
//read end tag if it is an empty element.
if (reader.isEmptyElement()) {
reader.read();
}
reader.readEndElementIfNecessary(XmlNamespace.
Messages, xmlElementName);
}
} else {
this.errorMessage = reader.readElementValue(XmlNamespace.Messages,
XmlElementNames.MessageText);
this.errorCode = reader.readElementValue(ServiceError.class,
XmlNamespace.Messages, XmlElementNames.ResponseCode);
reader.readElementValue(int.class, XmlNamespace.Messages,
XmlElementNames.DescriptiveLinkKey);
while (!reader.isEndElement(XmlNamespace.
Messages, xmlElementName)) {
reader.read();
if (reader.isStartElement()) {
if (!this.loadExtraErrorDetailsFromXml(reader, reader.getLocalName())) {
reader.skipCurrentElement();
}
}
}
}
this.mapErrorCodeToErrorMessage();
this.loaded();
}
/**
* Parses the message XML.
*
* @param reader The reader.
* @throws Exception the exception
*/
protected void parseMessageXml(EwsServiceXmlReader reader)
throws Exception {
do {
reader.read();
if (reader.isStartElement()) {
if (reader.getLocalName().equals(XmlElementNames.Value)) {
this.errorDetails.put(reader
.readAttributeValue(XmlAttributeNames.Name), reader
.readElementValue());
} else if (reader.getLocalName().equals(
XmlElementNames.FieldURI)) {
this.errorProperties
.add(ServiceObjectSchema
.findPropertyDefinition(reader.readAttributeValue(XmlAttributeNames.
FieldURI)));
} else if (reader.getLocalName().equals(
XmlElementNames.IndexedFieldURI)) {
this.errorProperties
.add(new IndexedPropertyDefinition(
reader
.readAttributeValue(XmlAttributeNames.
FieldURI),
reader
.readAttributeValue(XmlAttributeNames.
FieldIndex)));
} else if (reader.getLocalName().equals(
XmlElementNames.ExtendedFieldURI)) {
ExtendedPropertyDefinition extendedPropDef =
new ExtendedPropertyDefinition();
extendedPropDef.loadFromXml(reader);
this.errorProperties.add(extendedPropDef);
}
}
} while (!reader.isEndElement(XmlNamespace.Messages,
XmlElementNames.MessageXml));
}
/**
* Called when the response has been loaded from XML.
*/
protected void loaded() {
}
/**
* Called after the response has been loaded from XML in order to map error
* codes to "better" error messages.
*/
protected void mapErrorCodeToErrorMessage() {
// Bug E14:69560 -- Use a better error message when an item cannot be
// updated because its changeKey is old.
if (this.getErrorCode() == ServiceError.ErrorIrresolvableConflict) {
this.setErrorMessage(
"The operation can't be performed because the item is out of date. Reload the item and try again.");
}
}
/**
* Reads response elements from XML.
*
* @param reader the reader
* @throws Exception the exception
*/
protected void readElementsFromXml(EwsServiceXmlReader reader) throws Exception {
}
/**
* Loads extra error details from XML
*
* @param reader The reader.
* @param xmlElementName The current element name of the extra error details.
* @return True if the expected extra details is loaded;
* False if the element name does not match the expected element.
*/
protected boolean loadExtraErrorDetailsFromXml(EwsServiceXmlReader reader,
String xmlElementName) throws Exception {
if (reader.isStartElement(XmlNamespace.Messages, XmlElementNames.MessageXml) &&
!reader.isEmptyElement()) {
this.parseMessageXml(reader);
return true;
} else {
return false;
}
}
/**
* Throws a ServiceResponseException if this response has its Result
* property set to Error.
*
* @throws ServiceResponseException the service response exception
*/
public void throwIfNecessary() throws ServiceResponseException {
this.internalThrowIfNecessary();
}
/**
* Internal method that throws a ServiceResponseException if this response
* has its Result property set to Error.
*
* @throws ServiceResponseException the service response exception
*/
protected void internalThrowIfNecessary() throws ServiceResponseException {
if (this.result == ServiceResult.Error) {
throw new ServiceResponseException(this);
}
}
/**
* Gets a value indicating whether a batch request stopped processing before
* the end.
*
* @return A value indicating whether a batch request stopped processing
* before the end.
*/
protected boolean getBatchProcessingStopped() {
return (this.result == ServiceResult.Warning)
&& (this.errorCode == ServiceError.ErrorBatchProcessingStopped);
}
/**
* Gets the result associated with this response.
*
* @return The result associated with this response.
*/
public ServiceResult getResult() {
return result;
}
/**
* Gets the error code associated with this response.
*
* @return The error code associated with this response.
*/
public ServiceError getErrorCode() {
return errorCode;
}
/**
* Gets a detailed error message associated with the response. If Result
* is set to Success, ErrorMessage returns null. ErrorMessage is localized
* according to the PreferredCulture property of the ExchangeService object
* that was used to call the method that generated the response.
*
* @return the error message
*/
public String getErrorMessage() {
return errorMessage;
}
/**
* Sets a detailed error message associated with the response.
*
* @param errorMessage The error message associated with the response.
*/
protected void setErrorMessage(String errorMessage) {
this.errorMessage = errorMessage;
}
/**
* Gets error details associated with the response. If Result is set to
* Success, ErrorDetailsDictionary returns null. Error details will only
* available for some error codes. For example, when error code is
* ErrorRecurrenceHasNoOccurrence, the ErrorDetailsDictionary will contain
* keys for EffectiveStartDate and EffectiveEndDate.
*
* @return The error details dictionary.
*/
public Map getErrorDetails() {
return errorDetails;
}
/**
* Gets information about property errors associated with the response. If
* Result is set to Success, ErrorProperties returns null. ErrorProperties
* is only available for some error codes. For example, when the error code
* is ErrorInvalidPropertyForOperation, ErrorProperties will contain the
* definition of the property that was invalid for the request.
*
* @return the error property
*/
public Collection getErrorProperties() {
return this.errorProperties;
}
}