ca.uhn.fhir.rest.server.exceptions.BaseServerResponseException Maven / Gradle / Ivy
package ca.uhn.fhir.rest.server.exceptions;
import java.lang.reflect.InvocationTargetException;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collections;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import org.apache.commons.lang3.Validate;
import org.hl7.fhir.instance.model.api.IBaseOperationOutcome;
import ca.uhn.fhir.rest.server.IResourceProvider;
/*
* #%L
* HAPI FHIR - Core Library
* %%
* Copyright (C) 2014 - 2016 University Health Network
* %%
* Licensed 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.
* #L%
*/
/**
* Base class for RESTful client and server exceptions. RESTful client methods will only throw exceptions which are subclasses of this exception type, and RESTful server methods should also only call
* subclasses of this exception type.
*
* HAPI provides a number of subclasses of BaseServerResponseException, and each one corresponds to a specific
* HTTP status code. For example, if a {@link IResourceProvider resource provider} method throws
* {@link ResourceNotFoundException}, this is a signal to the server that an HTTP 404 should
* be returned to the client.
*
*
* See: A complete list of available exceptions is in the package summary.
* If an exception doesn't exist for a condition you want to represent, let us know by filing an
* issue in our tracker. You may also
* use {@link UnclassifiedServerFailureException} to represent any error code you want.
*
*/
public abstract class BaseServerResponseException extends RuntimeException {
private static final Map> ourStatusCodeToExceptionType = new HashMap>();
private static final long serialVersionUID = 1L;
static {
registerExceptionType(AuthenticationException.STATUS_CODE, AuthenticationException.class);
registerExceptionType(InternalErrorException.STATUS_CODE, InternalErrorException.class);
registerExceptionType(InvalidRequestException.STATUS_CODE, InvalidRequestException.class);
registerExceptionType(MethodNotAllowedException.STATUS_CODE, MethodNotAllowedException.class);
registerExceptionType(NotImplementedOperationException.STATUS_CODE, NotImplementedOperationException.class);
registerExceptionType(NotModifiedException.STATUS_CODE, NotModifiedException.class);
registerExceptionType(ResourceNotFoundException.STATUS_CODE, ResourceNotFoundException.class);
registerExceptionType(ResourceGoneException.STATUS_CODE, ResourceGoneException.class);
registerExceptionType(PreconditionFailedException.STATUS_CODE, PreconditionFailedException.class);
registerExceptionType(ResourceVersionConflictException.STATUS_CODE, ResourceVersionConflictException.class);
registerExceptionType(UnprocessableEntityException.STATUS_CODE, UnprocessableEntityException.class);
registerExceptionType(ForbiddenOperationException.STATUS_CODE, ForbiddenOperationException.class);
}
private List myAdditionalMessages = null;
private IBaseOperationOutcome myBaseOperationOutcome;
private String myResponseBody;
private Map> myResponseHeaders;
private String myResponseMimeType;
private int myStatusCode;
/**
* Constructor
*
* @param theStatusCode
* The HTTP status code corresponding to this problem
* @param theMessage
* The message
*/
public BaseServerResponseException(int theStatusCode, String theMessage) {
super(theMessage);
myStatusCode = theStatusCode;
myBaseOperationOutcome = null;
}
/**
* Constructor
*
* @param theStatusCode
* The HTTP status code corresponding to this problem
* @param theMessages
* The messages
*/
public BaseServerResponseException(int theStatusCode, String... theMessages) {
super(theMessages != null && theMessages.length > 0 ? theMessages[0] : null);
myStatusCode = theStatusCode;
myBaseOperationOutcome = null;
if (theMessages != null && theMessages.length > 1) {
myAdditionalMessages = Arrays.asList(Arrays.copyOfRange(theMessages, 1, theMessages.length, String[].class));
}
}
/**
* Constructor
*
* @param theStatusCode
* The HTTP status code corresponding to this problem
* @param theMessage
* The message
* @param theBaseOperationOutcome
* An BaseOperationOutcome resource to return to the calling client (in a server) or the BaseOperationOutcome that was returned from the server (in a client)
*/
public BaseServerResponseException(int theStatusCode, String theMessage, IBaseOperationOutcome theBaseOperationOutcome) {
super(theMessage);
myStatusCode = theStatusCode;
myBaseOperationOutcome = theBaseOperationOutcome;
}
/**
* Constructor
*
* @param theStatusCode
* The HTTP status code corresponding to this problem
* @param theMessage
* The message
* @param theCause
* The cause
*/
public BaseServerResponseException(int theStatusCode, String theMessage, Throwable theCause) {
super(theMessage, theCause);
myStatusCode = theStatusCode;
myBaseOperationOutcome = null;
}
/**
* Constructor
*
* @param theStatusCode
* The HTTP status code corresponding to this problem
* @param theMessage
* The message
* @param theCause
* The underlying cause exception
* @param theBaseOperationOutcome
* An BaseOperationOutcome resource to return to the calling client (in a server) or the BaseOperationOutcome that was returned from the server (in a client)
*/
public BaseServerResponseException(int theStatusCode, String theMessage, Throwable theCause, IBaseOperationOutcome theBaseOperationOutcome) {
super(theMessage, theCause);
myStatusCode = theStatusCode;
myBaseOperationOutcome = theBaseOperationOutcome;
}
/**
* Constructor
*
* @param theStatusCode
* The HTTP status code corresponding to this problem
* @param theCause
* The underlying cause exception
*/
public BaseServerResponseException(int theStatusCode, Throwable theCause) {
super(theCause.toString(), theCause);
myStatusCode = theStatusCode;
myBaseOperationOutcome = null;
}
/**
* Constructor
*
* @param theStatusCode
* The HTTP status code corresponding to this problem
* @param theCause
* The underlying cause exception
* @param theBaseOperationOutcome
* An BaseOperationOutcome resource to return to the calling client (in a server) or the BaseOperationOutcome that was returned from the server (in a client)
*/
public BaseServerResponseException(int theStatusCode, Throwable theCause, IBaseOperationOutcome theBaseOperationOutcome) {
super(theCause.toString(), theCause);
myStatusCode = theStatusCode;
myBaseOperationOutcome = theBaseOperationOutcome;
}
/**
* Add a header which will be added to any responses
*
* @param theName The header name
* @param theValue The header value
* @return Returns a reference to this for easy method chaining
* @since 2.0
*/
public BaseServerResponseException addResponseHeader(String theName, String theValue) {
Validate.notBlank(theName, "theName must not be null or empty");
Validate.notBlank(theValue, "theValue must not be null or empty");
if (getResponseHeaders().containsKey(theName) == false) {
getResponseHeaders().put(theName, new ArrayList());
}
getResponseHeaders().get(theName).add(theValue);
return this;
}
public List getAdditionalMessages() {
return myAdditionalMessages;
}
/**
* Returns the {@link IBaseOperationOutcome} resource if any which was supplied in the response, or null
*/
public IBaseOperationOutcome getOperationOutcome() {
return myBaseOperationOutcome;
}
/**
* In a RESTful client, this method will be populated with the body of the HTTP respone if one was provided by the server, or null otherwise.
*
* In a restful server, this method is currently ignored.
*
*/
public String getResponseBody() {
return myResponseBody;
}
/**
* Returns a map containing any headers which should be added to the outgoing
* response. This methos creates the map if none exists, so it will never
* return null
*
* @since 2.0 (note that this method existed in previous versions of HAPI but the method
* signature has been changed from Map<String, String[]> to Map<String, List<String>>
*/
public Map> getResponseHeaders() {
if (myResponseHeaders == null) {
myResponseHeaders = new HashMap>();
}
return myResponseHeaders;
}
/**
* In a RESTful client, this method will be populated with the HTTP status code that was returned with the HTTP response.
*
* In a restful server, this method is currently ignored.
*
*/
public String getResponseMimeType() {
return myResponseMimeType;
}
/**
* Returns the HTTP status code corresponding to this problem
*/
public int getStatusCode() {
return myStatusCode;
}
/**
* Does the exception have any headers which should be added to the outgoing response?
*
* @see #getResponseHeaders()
* @since 2.0
*/
public boolean hasResponseHeaders() {
return myResponseHeaders != null && myResponseHeaders.isEmpty() == false;
}
/**
* Sets the BaseOperationOutcome resource associated with this exception. In server implementations, this is the OperartionOutcome resource to include with the HTTP response. In client
* implementations you should not call this method.
*
* @param theBaseOperationOutcome
* The BaseOperationOutcome resource Sets the BaseOperationOutcome resource associated with this exception. In server implementations, this is the OperartionOutcome resource to include
* with the HTTP response. In client implementations you should not call this method.
*/
public void setOperationOutcome(IBaseOperationOutcome theBaseOperationOutcome) {
myBaseOperationOutcome = theBaseOperationOutcome;
}
/**
* This method is currently only called internally by HAPI, it should not be called by user code.
*/
public void setResponseBody(String theResponseBody) {
myResponseBody = theResponseBody;
}
/**
* This method is currently only called internally by HAPI, it should not be called by user code.
*/
public void setResponseMimeType(String theResponseMimeType) {
myResponseMimeType = theResponseMimeType;
}
/**
* For unit tests only
*/
static boolean isExceptionTypeRegistered(Class theType) {
return ourStatusCodeToExceptionType.values().contains(theType);
}
public static BaseServerResponseException newInstance(int theStatusCode, String theMessage) {
if (ourStatusCodeToExceptionType.containsKey(theStatusCode)) {
try {
return ourStatusCodeToExceptionType.get(theStatusCode).getConstructor(new Class[] { String.class }).newInstance(theMessage);
} catch (InstantiationException e) {
throw new InternalErrorException(e);
} catch (IllegalAccessException e) {
throw new InternalErrorException(e);
} catch (IllegalArgumentException e) {
throw new InternalErrorException(e);
} catch (InvocationTargetException e) {
throw new InternalErrorException(e);
} catch (NoSuchMethodException e) {
throw new InternalErrorException(e);
} catch (SecurityException e) {
throw new InternalErrorException(e);
}
} else {
return new UnclassifiedServerFailureException(theStatusCode, theMessage);
}
}
static void registerExceptionType(int theStatusCode, Class theType) {
if (ourStatusCodeToExceptionType.containsKey(theStatusCode)) {
throw new Error("Can not register " + theType + " to status code " + theStatusCode + " because " + ourStatusCodeToExceptionType.get(theStatusCode) + " already registers that code");
}
ourStatusCodeToExceptionType.put(theStatusCode, theType);
}
}
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