org.lockss.laaws.config.impl.NoaupeersApiServiceImpl Maven / Gradle / Ivy
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/*
Copyright (c) 2000-2019 Board of Trustees of Leland Stanford Jr. University,
all rights reserved.
Redistribution and use in source and binary forms, with or without modification,
are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice, this
list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation and/or
other materials provided with the distribution.
3. Neither the name of the copyright holder nor the names of its contributors
may be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
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(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
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(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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*/
package org.lockss.laaws.config.impl;
import java.io.IOException;
import java.security.AccessControlException;
import org.lockss.app.LockssDaemon;
import org.lockss.laaws.config.api.NoaupeersApiDelegate;
import org.lockss.log.L4JLogger;
import org.lockss.plugin.AuUtil;
import org.lockss.spring.auth.Roles;
import org.lockss.spring.auth.AuthUtil;
import org.lockss.spring.base.BaseSpringApiServiceImpl;
import org.lockss.state.StateManager;
import org.lockss.util.JsonUtil;
import org.springframework.http.HttpStatus;
import org.springframework.http.ResponseEntity;
import org.springframework.stereotype.Service;
/**
* Service for accessing Archival Unit NoAuPeerSet object.
*/
@Service
public class NoaupeersApiServiceImpl extends BaseSpringApiServiceImpl
implements NoaupeersApiDelegate {
private static L4JLogger log = L4JLogger.getLogger();
/**
* Provides the NoAuPeerSet object of an AU given the AU identifier.
*
* @param auid
* A String with the AU identifier.
* @return a {@code ResponseEntity} with the Archival Unit NoAuPeerSet
* object if successful, or a {@code ResponseEntity} with the
* error information otherwise.
*/
@Override
public ResponseEntity getNoAuPeers(String auid) {
log.debug2("auid = {}", auid);
// Check whether the service has not been fully initialized.
if (!waitReady()) {
// Yes: Notify the client.
return new ResponseEntity<>(HttpStatus.SERVICE_UNAVAILABLE);
}
try {
// Validate the AUId.
ResponseEntity errorResponseEntity = validateAuid(auid);
if (errorResponseEntity != null) {
return errorResponseEntity;
}
// Get the Archival Unit NoAuPeerSet object.
String result = getStateManager().getNoAuPeerSet(auid).toJson();
log.debug2("result = {}", result);
return new ResponseEntity(result, HttpStatus.OK);
} catch (IllegalArgumentException iae) {
String message =
"Cannot get the NoAuPeerSet object for auid = '" + auid + "'";
log.error(message, iae);
return getErrorResponseEntity(HttpStatus.BAD_REQUEST, message, iae);
} catch (Exception e) {
String message =
"Cannot get the NoAuPeerSet object for auid = '" + auid + "'";
log.error(message, e);
return getErrorResponseEntity(HttpStatus.INTERNAL_SERVER_ERROR, message,
e);
}
}
/**
* Updates the NoAuPeerSet object of an Archival Unit with the provided
* values.
*
* @param auid
* A String with the AU identifier.
* @param noAuPeerSet
* A String with the Archival Unit NoAuPeerSet object changes.
* @param xLockssRequestCookie
* A String with "X-Lockss-Request-Cookie" request header.
* @return a {@code ResponseEntity} if successful, or a
* {@code ResponseEntity} with the error information
* otherwise.
*/
@Override
public ResponseEntity putNoAuPeers(String auid, String noAuPeerSet,
String xLockssRequestCookie) {
log.debug2("auid = {}", auid);
log.debug2("noAuPeerSet = {}", noAuPeerSet);
log.debug2("xLockssRequestCookie = {}", xLockssRequestCookie);
// Check whether the service has not been fully initialized.
if (!waitReady()) {
// Yes: Notify the client.
return new ResponseEntity<>(HttpStatus.SERVICE_UNAVAILABLE);
}
// Check for required role
try {
AuthUtil.checkHasRole(Roles.ROLE_AU_ADMIN);
} catch (AccessControlException ace) {
log.warn(ace.getMessage());
return getErrorResponseEntity(HttpStatus.FORBIDDEN, null, ace);
}
try {
// Validate the input parameters.
ResponseEntity errorResponseEntity =
validateAuidAndNoAuPeerSet(auid, noAuPeerSet);
if (errorResponseEntity != null) {
return errorResponseEntity;
}
// Update the Archival Unit NoAuPeerSet object.
getStateManager().updateNoAuPeerSetFromJson(auid, noAuPeerSet,
xLockssRequestCookie);
return new ResponseEntity(HttpStatus.OK);
} catch (IllegalArgumentException iae) {
String message =
"Cannot update the NoAuPeerSet object for auid = '" + auid + "'";
log.error(message, iae);
log.error("noAuPeerSet = {}", noAuPeerSet);
return getErrorResponseEntity(HttpStatus.BAD_REQUEST, message, iae);
} catch (Exception e) {
String message =
"Cannot update the NoAuPeerSet object for auid = '" + auid + "'";
log.error(message, e);
log.error("noAuPeerSet = {}", noAuPeerSet);
return getErrorResponseEntity(HttpStatus.INTERNAL_SERVER_ERROR, message,
e);
}
}
/**
* Validates the AU identifier.
*
* @param auid
* A String with the AU identifier.
* @return a {@code ResponseEntity} with the error response entity, or
* null if the validation succeeds.
*/
private ResponseEntity validateAuid(String auid) {
// Check whether there is no AUId.
if (auid == null || auid.isEmpty()) {
// Yes: Report the problem.
String message = "Invalid auId = '" + auid + "'";
log.error(message);
return getErrorResponseEntity(HttpStatus.BAD_REQUEST, message, null);
}
// No: Success.
return null;
}
/**
* Validates the AU identifier and NoAuPeerSet object.
*
* @param auid
* A String with the AU identifier.
* @param noAuPeersSet
* A String with the Archival Unit NoAuPeerSet object.
* @return a {@code ResponseEntity} with the error response entity, or
* null if the validation succeeds.
*/
private ResponseEntity validateAuidAndNoAuPeerSet(String auid,
String noAuPeersSet) throws IOException {
// Validate the AUId.
ResponseEntity errorResponseEntity = validateAuid(auid);
if (errorResponseEntity != null) {
return errorResponseEntity;
}
// Check whether there is no NoAuPeerSet object.
if (noAuPeersSet == null || noAuPeersSet.isEmpty()) {
// Yes: Report the problem.
String message = "Invalid noAuPeersSet = '" + noAuPeersSet + "'";
log.error(message);
return getErrorResponseEntity(HttpStatus.BAD_REQUEST, message, null);
}
// No: Validate the AUId consistency between arguments.
String auIdInNoAuPeersSet =
AuUtil.datedPeerIdSetImplFromJson(noAuPeersSet).getAuid();
if (auIdInNoAuPeersSet != null && !auIdInNoAuPeersSet.isEmpty()
&& !auIdInNoAuPeersSet.equals(auid)) {
String message =
"Incompatible auId in noAuPeersSet = '" + noAuPeersSet + "'";
log.error(message);
log.error("auid = {}",auid);
return getErrorResponseEntity(HttpStatus.BAD_REQUEST, message, null);
}
// Success.
return null;
}
/**
* Provides the response entity when there is an error.
*
* @param status
* An HttpStatus with the error HTTP status.
* @param message
* A String with the error message.
* @param e
* An Exception with theerror exception.
* @return a {@code ResponseEntity} with the error response entity.
*/
private ResponseEntity getErrorResponseEntity(HttpStatus status,
String message, Exception e) {
String errorMessage = message;
if (e != null) {
if (errorMessage == null) {
errorMessage = e.getMessage();
} else {
errorMessage = errorMessage + " - " + e.getMessage();
}
}
return new ResponseEntity(JsonUtil.toJsonError(status.value(),
errorMessage), status);
}
}