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/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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.
*/
package org.eclipse.aether.transfer;
import org.eclipse.aether.RepositoryException;
/**
* Thrown in case of a checksum failure during an artifact/metadata download.
*/
public class ChecksumFailureException extends RepositoryException {
private final String expected;
private final String expectedKind;
private final String actual;
private final boolean retryWorthy;
/**
* Creates a new exception with the specified expected and actual checksum. The resulting exception is
* {@link #isRetryWorthy() retry-worthy}.
*
* @param expected The expected checksum as declared by the hosting repository, may be {@code null}.
* @param actual The actual checksum as computed from the local bytes, may be {@code null}.
* @deprecated Does not reveal expected checksum kind, use other constructor that provide that information as well.
*/
@Deprecated
public ChecksumFailureException(String expected, String actual) {
this(expected, null, actual);
}
/**
* Creates a new exception with the specified expected, expected kind and actual checksum. The resulting exception
* is {@link #isRetryWorthy() retry-worthy}.
*
* @param expected The expected checksum as declared by the hosting repository, may be {@code null}.
* @param expectedKind The expected checksum kind, may be {@code null}.
* @param actual The actual checksum as computed from the local bytes, may be {@code null}.
* @since 1.8.0
*/
public ChecksumFailureException(String expected, String expectedKind, String actual) {
super("Checksum validation failed, expected '"
+ expected + "'" + (expectedKind == null ? "" : " (" + expectedKind + ")")
+ " but is actually '" + actual + "'");
this.expected = expected;
this.expectedKind = expectedKind;
this.actual = actual;
this.retryWorthy = true;
}
/**
* Creates a new exception with the specified detail message. The resulting exception is not
* {@link #isRetryWorthy() retry-worthy}.
*
* @param message The detail message, may be {@code null}.
*/
public ChecksumFailureException(String message) {
this(false, message, null);
}
/**
* Creates a new exception with the specified cause. The resulting exception is not {@link #isRetryWorthy()
* retry-worthy}.
*
* @param cause The exception that caused this one, may be {@code null}.
*/
public ChecksumFailureException(Throwable cause) {
this("Checksum validation failed" + getMessage(": ", cause), cause);
}
/**
* Creates a new exception with the specified detail message and cause. The resulting exception is not
* {@link #isRetryWorthy() retry-worthy}.
*
* @param message The detail message, may be {@code null}.
* @param cause The exception that caused this one, may be {@code null}.
*/
public ChecksumFailureException(String message, Throwable cause) {
this(false, message, cause);
}
/**
* Creates a new exception with the specified retry flag, detail message and cause.
*
* @param retryWorthy {@code true} if the exception is retry-worthy, {@code false} otherwise.
* @param message The detail message, may be {@code null}.
* @param cause The exception that caused this one, may be {@code null}.
*/
public ChecksumFailureException(boolean retryWorthy, String message, Throwable cause) {
super(message, cause);
this.expected = "";
this.expectedKind = "";
this.actual = "";
this.retryWorthy = retryWorthy;
}
/**
* Gets the expected checksum for the downloaded artifact/metadata.
*
* @return The expected checksum as declared by the hosting repository or {@code null} if unknown.
*/
public String getExpected() {
return expected;
}
/**
* Gets the expected checksum kind for the downloaded artifact/metadata.
*
* @return The expected checksum kind or {@code null} if unknown.
* @since 1.8.0
*/
public String getExpectedKind() {
return expectedKind;
}
/**
* Gets the actual checksum for the downloaded artifact/metadata.
*
* @return The actual checksum as computed from the local bytes or {@code null} if unknown.
*/
public String getActual() {
return actual;
}
/**
* Indicates whether the corresponding download is retry-worthy.
*
* @return {@code true} if retrying the download might solve the checksum failure, {@code false} if the checksum
* failure is non-recoverable.
*/
public boolean isRetryWorthy() {
return retryWorthy;
}
}
