2 * Copyright (c) 2014 Brocade Communications Systems, Inc. and others. All rights reserved.
4 * This program and the accompanying materials are made available under the
5 * terms of the Eclipse Public License v1.0 which accompanies this distribution,
6 * and is available at http://www.eclipse.org/legal/epl-v10.html
8 package org.opendaylight.restconf.common.errors;
10 import com.google.common.base.Preconditions;
11 import com.google.common.collect.ImmutableList;
12 import java.util.ArrayList;
13 import java.util.Collection;
14 import java.util.List;
15 import javax.ws.rs.WebApplicationException;
16 import javax.ws.rs.core.Response.Status;
17 import org.eclipse.jdt.annotation.NonNull;
18 import org.eclipse.jdt.annotation.Nullable;
19 import org.opendaylight.restconf.common.errors.RestconfError.ErrorTag;
20 import org.opendaylight.restconf.common.errors.RestconfError.ErrorType;
21 import org.opendaylight.yangtools.yang.common.OperationFailedException;
22 import org.opendaylight.yangtools.yang.common.RpcError;
23 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
26 * Unchecked exception to communicate error information, as defined in the ietf restcong draft, to be sent to the
30 * See also <a href="https://tools.ietf.org/html/draft-bierman-netconf-restconf-02">RESTCONF</a>
33 * @author Thomas Pantelis
35 public class RestconfDocumentedException extends WebApplicationException {
37 private static final long serialVersionUID = 1L;
39 private final ImmutableList<RestconfError> errors;
40 private final Status status;
43 * Constructs an instance with an error message. The error type defaults to APPLICATION and the error tag defaults
44 * to OPERATION_FAILED.
47 * A string which provides a plain text string describing the error.
49 public RestconfDocumentedException(final String message) {
50 this(message, RestconfError.ErrorType.APPLICATION, RestconfError.ErrorTag.OPERATION_FAILED);
54 * Constructs an instance with an error message, error type, error tag and exception cause.
57 * A string which provides a plain text string describing the error.
59 * The enumerated type indicating the layer where the error occurred.
61 * The enumerated tag representing a more specific error cause.
63 * The underlying exception cause.
65 public RestconfDocumentedException(final String message, final ErrorType errorType, final ErrorTag errorTag,
66 final Throwable cause) {
67 this(cause, new RestconfError(errorType, errorTag, message, null,
68 cause.getMessage(), null));
72 * Constructs an instance with an error message, error type, and error tag.
75 * A string which provides a plain text string describing the error.
77 * The enumerated type indicating the layer where the error occurred.
79 * The enumerated tag representing a more specific error cause.
81 public RestconfDocumentedException(final String message, final ErrorType errorType, final ErrorTag errorTag) {
82 this(null, new RestconfError(errorType, errorTag, message));
86 * Constructs an instance with an error message, error type, error tag and error path.
89 * A string which provides a plain text string describing the error.
91 * The enumerated type indicating the layer where the error occurred.
93 * The enumerated tag representing a more specific error cause.
95 * The instance identifier representing error path
97 public RestconfDocumentedException(final String message, final ErrorType errorType, final ErrorTag errorTag,
98 final YangInstanceIdentifier errorPath) {
99 this(null, new RestconfError(errorType, errorTag, message, errorPath));
103 * Constructs an instance with an error message and exception cause.
104 * The underlying exception is included in the error-info.
107 * A string which provides a plain text string describing the error.
109 * The underlying exception cause.
111 public RestconfDocumentedException(final String message, final Throwable cause) {
112 this(cause, new RestconfError(RestconfError.ErrorType.APPLICATION, RestconfError.ErrorTag.OPERATION_FAILED,
113 message, null, cause.getMessage(), null));
117 * Constructs an instance with the given error.
119 public RestconfDocumentedException(final RestconfError error) {
124 * Constructs an instance with the given errors.
126 public RestconfDocumentedException(final String message, final Throwable cause, final List<RestconfError> errors) {
127 // FIXME: We override getMessage so supplied message is lost for any public access
128 // this was lost also in original code.
130 if (!errors.isEmpty()) {
131 this.errors = ImmutableList.copyOf(errors);
133 this.errors = ImmutableList.of(new RestconfError(RestconfError.ErrorType.APPLICATION,
134 RestconfError.ErrorTag.OPERATION_FAILED, message));
141 * Constructs an instance with the given RpcErrors.
143 public RestconfDocumentedException(final String message, final Throwable cause,
144 final Collection<? extends RpcError> rpcErrors) {
145 this(message, cause, convertToRestconfErrors(rpcErrors));
149 * Constructs an instance with an HTTP status and no error information.
154 public RestconfDocumentedException(final Status status) {
155 Preconditions.checkNotNull(status, "Status can't be null");
156 errors = ImmutableList.of();
157 this.status = status;
160 public RestconfDocumentedException(final Throwable cause, final RestconfError error) {
161 super(cause, error.getErrorTag().getStatusCode());
162 Preconditions.checkNotNull(error, "RestconfError can't be null");
163 errors = ImmutableList.of(error);
167 public static RestconfDocumentedException decodeAndThrow(final String message,
168 final OperationFailedException cause) {
169 for (final RpcError error : cause.getErrorList()) {
170 if (error.getErrorType() == RpcError.ErrorType.TRANSPORT
171 && error.getTag().equals(ErrorTag.RESOURCE_DENIED.getTagValue())) {
172 throw new RestconfDocumentedException(error.getMessage(), ErrorType.TRANSPORT,
173 ErrorTag.RESOURCE_DENIED_TRANSPORT, cause);
176 throw new RestconfDocumentedException(message, cause, cause.getErrorList());
180 * Throw an instance of this exception if an expression evaluates to true. If the expression evaluates to false,
181 * this method does nothing.
183 * @param expression Expression to be evaluated
184 * @param errorType The enumerated type indicating the layer where the error occurred.
185 * @param errorTag The enumerated tag representing a more specific error cause.
186 * @param format Format string, according to {@link String#format(String, Object...)}.
187 * @param args Format string arguments, according to {@link String#format(String, Object...)}
188 * @throws RestconfDocumentedException if the expression evaluates to true.
190 public static void throwIf(final boolean expression, final ErrorType errorType, final ErrorTag errorTag,
191 final @NonNull String format, final Object... args) {
193 throw new RestconfDocumentedException(String.format(format, args), errorType, errorTag);
198 * Throw an instance of this exception if an expression evaluates to true. If the expression evaluates to false,
199 * this method does nothing.
201 * @param expression Expression to be evaluated
202 * @param message error message
203 * @param errorType The enumerated type indicating the layer where the error occurred.
204 * @param errorTag The enumerated tag representing a more specific error cause.
205 * @throws RestconfDocumentedException if the expression evaluates to true.
207 public static void throwIf(final boolean expression, final @NonNull String message,
208 final ErrorType errorType, final ErrorTag errorTag) {
210 throw new RestconfDocumentedException(message, errorType, errorTag);
215 * Throw an instance of this exception if an object is null. If the object is non-null, it will
216 * be returned as the result of this method.
218 * @param obj Object reference to be checked
219 * @param errorType The enumerated type indicating the layer where the error occurred.
220 * @param errorTag The enumerated tag representing a more specific error cause.
221 * @param format Format string, according to {@link String#format(String, Object...)}.
222 * @param args Format string arguments, according to {@link String#format(String, Object...)}
223 * @throws RestconfDocumentedException if the expression evaluates to true.
225 public static <T> @NonNull T throwIfNull(final @Nullable T obj, final ErrorType errorType, final ErrorTag errorTag,
226 final @NonNull String format, final Object... args) {
228 throw new RestconfDocumentedException(String.format(format, args), errorType, errorTag);
233 private static List<RestconfError> convertToRestconfErrors(final Collection<? extends RpcError> rpcErrors) {
234 final List<RestconfError> errorList = new ArrayList<>();
235 if (rpcErrors != null) {
236 for (RpcError rpcError : rpcErrors) {
237 errorList.add(new RestconfError(rpcError));
244 public List<RestconfError> getErrors() {
248 public Status getStatus() {
253 public String getMessage() {
254 return "errors: " + errors + (status != null ? ", status: " + status : "");