Remove non-idiomatic use of Objects.isNull

This method exists to be used as a Predicate, filter(Objects::isNull)
italiangrid · Nov 6, 2024 · 0c78933 · 0c78933
1 parent c3a4a10
commit 0c78933
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Showing 34 changed files with 86 additions and 132 deletions.
diff --git a/src/main/java/org/italiangrid/storm/webdav/authn/AuthenticationUtils.java b/src/main/java/org/italiangrid/storm/webdav/authn/AuthenticationUtils.java
@@ -15,10 +15,7 @@
  */
 package org.italiangrid.storm.webdav.authn;
 
-import static java.util.Objects.isNull;
-
 import java.util.Map;
-import java.util.Objects;
 
 import org.springframework.security.authentication.AnonymousAuthenticationToken;
 import org.springframework.security.core.Authentication;
@@ -33,15 +30,15 @@ private AuthenticationUtils() {
   }
 
   public static String getPalatableSubject(Authentication authn) {
-    if (Objects.isNull(authn) || authn instanceof AnonymousAuthenticationToken) {
+    if (authn == null || authn instanceof AnonymousAuthenticationToken) {
       return "Anonymous user";
     } else if (authn instanceof OAuth2AuthenticationToken) {
       OAuth2AuthenticationToken authToken = (OAuth2AuthenticationToken) authn;
       Map<String, Object> attributes = authToken.getPrincipal().getAttributes();
 
       String subjectIssuer = String.format("%s @ %s", attributes.get("sub"), attributes.get("iss"));
 
-      if (!isNull(attributes.get("name"))) {
+      if (attributes.get("name") != null) {
         return (String) attributes.get("name");
       }
 

diff --git a/src/main/java/org/italiangrid/storm/webdav/authn/PrincipalHelper.java b/src/main/java/org/italiangrid/storm/webdav/authn/PrincipalHelper.java
@@ -18,7 +18,6 @@
 import java.net.MalformedURLException;
 import java.net.URL;
 import java.util.Map;
-import java.util.Objects;
 import java.util.Optional;
 
 import org.italiangrid.storm.webdav.config.ServiceConfigurationProperties;
@@ -43,7 +42,7 @@ public PrincipalHelper(ServiceConfigurationProperties config) throws MalformedUR
   }
 
   public String getPrincipalAsString(Authentication authn) {
-    if (Objects.isNull(authn) || authn instanceof AnonymousAuthenticationToken) {
+    if (authn == null || authn instanceof AnonymousAuthenticationToken) {
       return "anonymous";
     } else if (authn instanceof OAuth2AuthenticationToken) {
       OAuth2AuthenticationToken authToken = (OAuth2AuthenticationToken) authn;

diff --git a/src/main/java/org/italiangrid/storm/webdav/authz/VOMSPolicyService.java b/src/main/java/org/italiangrid/storm/webdav/authz/VOMSPolicyService.java
@@ -15,7 +15,6 @@
  */
 package org.italiangrid.storm.webdav.authz;
 
-import static java.util.Objects.isNull;
 import static org.italiangrid.storm.webdav.authz.SAPermission.canRead;
 import static org.italiangrid.storm.webdav.authz.SAPermission.canWrite;
 
@@ -49,7 +48,7 @@ public VOMSPolicyService(StorageAreaConfiguration saConfig) {
     voMapPerms = ArrayListMultimap.create();
 
     for (StorageAreaInfo sa : saConfig.getStorageAreaInfo()) {
-      if (!isNull(sa.vos())) {
+      if (sa.vos() != null) {
         for (String vo : sa.vos()) {
           voPerms.put(vo, canRead(sa.name()));
           voPerms.put(vo, canWrite(sa.name()));

diff --git a/src/main/java/org/italiangrid/storm/webdav/authz/pdp/PathAuthorizationPolicy.java b/src/main/java/org/italiangrid/storm/webdav/authz/pdp/PathAuthorizationPolicy.java
@@ -16,7 +16,6 @@
 package org.italiangrid.storm.webdav.authz.pdp;
 
 import java.util.List;
-import java.util.Objects;
 import java.util.UUID;
 
 import javax.servlet.http.HttpServletRequest;
@@ -158,7 +157,7 @@ public Builder withPrincipalMatcher(PrincipalMatcher m) {
     }
 
     public PathAuthorizationPolicy build() {
-      if (Objects.isNull(id)) {
+      if (id == null) {
         id = UUID.randomUUID().toString();
       }
       return new PathAuthorizationPolicy(this);

diff --git a/src/main/java/org/italiangrid/storm/webdav/authz/pdp/WlcgStructuredPathAuthorizationPdp.java b/src/main/java/org/italiangrid/storm/webdav/authz/pdp/WlcgStructuredPathAuthorizationPdp.java
@@ -16,7 +16,6 @@
 package org.italiangrid.storm.webdav.authz.pdp;
 
 import static java.lang.String.format;
-import static java.util.Objects.isNull;
 import static java.util.stream.Collectors.toList;
 import static org.italiangrid.storm.webdav.authz.pdp.PathAuthorizationResult.deny;
 import static org.italiangrid.storm.webdav.authz.pdp.PathAuthorizationResult.indeterminate;
@@ -181,13 +180,13 @@ public PathAuthorizationResult authorizeRequest(PathAuthorizationRequest authzRe
 
     JwtAuthenticationToken jwtAuth = (JwtAuthenticationToken) authentication;
 
-    if (isNull(jwtAuth.getToken().getClaimAsString(SCOPE_CLAIM))) {
+    if (jwtAuth.getToken().getClaimAsString(SCOPE_CLAIM) == null) {
       return indeterminate(ERROR_INVALID_TOKEN_NO_SCOPE);
     }
 
     StorageAreaInfo sa = pathResolver.resolveStorageArea(requestPath);
 
-    if (isNull(sa)) {
+    if (sa == null) {
       return indeterminate(ERROR_SA_NOT_FOUND);
     }
 

diff --git a/src/main/java/org/italiangrid/storm/webdav/authz/pdp/principal/AnonymousUser.java b/src/main/java/org/italiangrid/storm/webdav/authz/pdp/principal/AnonymousUser.java
@@ -15,16 +15,14 @@
  */
 package org.italiangrid.storm.webdav.authz.pdp.principal;
 
-import static java.util.Objects.isNull;
-
 import org.springframework.security.authentication.AnonymousAuthenticationToken;
 import org.springframework.security.core.Authentication;
 
 public class AnonymousUser implements PrincipalMatcher {
 
   @Override
   public boolean matchesPrincipal(Authentication authentication) {
-    return isNull(authentication) || authentication instanceof AnonymousAuthenticationToken;
+    return authentication == null || authentication instanceof AnonymousAuthenticationToken;
   }
 
   @Override

diff --git a/src/main/java/org/italiangrid/storm/webdav/authz/pdp/principal/AnyAuthenticatedUser.java b/src/main/java/org/italiangrid/storm/webdav/authz/pdp/principal/AnyAuthenticatedUser.java
@@ -15,16 +15,14 @@
  */
 package org.italiangrid.storm.webdav.authz.pdp.principal;
 
-import static java.util.Objects.isNull;
-
 import org.springframework.security.authentication.AnonymousAuthenticationToken;
 import org.springframework.security.core.Authentication;
 
 public class AnyAuthenticatedUser implements PrincipalMatcher {
 
   @Override
   public boolean matchesPrincipal(Authentication authentication) {
-    return !isNull(authentication) && !(authentication instanceof AnonymousAuthenticationToken)
+    return authentication != null && !(authentication instanceof AnonymousAuthenticationToken)
         && authentication.isAuthenticated();
   }
 

diff --git a/src/main/java/org/italiangrid/storm/webdav/authz/pdp/principal/AuthorityHolder.java b/src/main/java/org/italiangrid/storm/webdav/authz/pdp/principal/AuthorityHolder.java
@@ -15,8 +15,6 @@
  */
 package org.italiangrid.storm.webdav.authz.pdp.principal;
 
-import java.util.Objects;
-
 import org.springframework.security.core.Authentication;
 import org.springframework.security.core.GrantedAuthority;
 
@@ -39,7 +37,7 @@ public static AuthorityHolder fromAuthority(GrantedAuthority authority) {
   @Override
   public boolean matchesPrincipal(Authentication authentication) {
 
-    return !Objects.isNull(authentication) && authentication.getAuthorities()
+    return authentication != null && authentication.getAuthorities()
       .stream()
       .anyMatch(a -> a.getAuthority().equals(authority.getAuthority()));
   }

diff --git a/src/main/java/org/italiangrid/storm/webdav/authz/util/StructuredPathScopeMatcher.java b/src/main/java/org/italiangrid/storm/webdav/authz/util/StructuredPathScopeMatcher.java
@@ -17,7 +17,6 @@
 
 import static com.google.common.base.Preconditions.checkArgument;
 import static com.google.common.base.Strings.isNullOrEmpty;
-import static java.util.Objects.nonNull;
 
 import java.nio.file.Path;
 import java.util.regex.Matcher;
@@ -33,7 +32,7 @@ public class StructuredPathScopeMatcher implements ScopeMatcher {
   public static final Logger LOG = LoggerFactory.getLogger(StructuredPathScopeMatcher.class);
 
   private static final Pattern POINT_DIR_MATCHER = Pattern.compile("\\.\\./?");
-  
+
   private static final Character SEP = ':';
   private static final String SEP_STR = SEP.toString();
 
@@ -55,24 +54,24 @@ private StructuredPathScopeMatcher(String prefix, String path) {
 
   @Override
   public boolean matchesScope(String scope) {
-    checkArgument(nonNull(scope), "scope must be non-null");
+    checkArgument(scope != null, "scope must be non-null");
 
     if (POINT_DIR_MATCHER.matcher(scope).find()) {
       throw new IllegalArgumentException("Scope contains relative path references");
     }
 
     Matcher prefixMatcher = prefixMatchPattern.matcher(scope);
-    
+
     boolean prefixMatches = prefixMatcher.find();
-    
+
     if (prefixMatches) {
       final String scopePath = scope.substring(prefix.length() + 1);
-      return pathMatchPattern.matcher(scopePath).matches(); 
+      return pathMatchPattern.matcher(scopePath).matches();
     } else {
       return false;
     }
   }
-  
+
   public boolean matchesPath(String path) {
     return pathMatchPattern.matcher(path).matches();
   }
@@ -81,7 +80,7 @@ public boolean matchesPathIncludingParents(String path) {
     Path targetPath = Path.of(path);
     return this.path.startsWith(targetPath) || matchesPath(path);
   }
-  
+
   public static StructuredPathScopeMatcher fromString(String scope) {
     final int sepIndex = scope.indexOf(SEP);
     final String prefix = scope.substring(0, sepIndex);
@@ -143,5 +142,5 @@ public String getPrefix() {
   public String getPath() {
     return path.toString();
   }
-  
+
 }
diff --git a/src/main/java/org/italiangrid/storm/webdav/authz/voters/FineGrainedAuthzVoter.java b/src/main/java/org/italiangrid/storm/webdav/authz/voters/FineGrainedAuthzVoter.java
@@ -15,7 +15,6 @@
  */
 package org.italiangrid.storm.webdav.authz.voters;
 
-import static java.util.Objects.isNull;
 import static org.italiangrid.storm.webdav.authz.pdp.PathAuthorizationRequest.newAuthorizationRequest;
 
 import java.util.Collection;
@@ -48,7 +47,7 @@ public int vote(Authentication authentication, FilterInvocation filter,
     final String requestPath = getRequestPath(filter.getHttpRequest());
     StorageAreaInfo sa = resolver.resolveStorageArea(requestPath);
 
-    if (isNull(sa) || Boolean.FALSE.equals(sa.fineGrainedAuthzEnabled())) {
+    if (sa == null || Boolean.FALSE.equals(sa.fineGrainedAuthzEnabled())) {
       return ACCESS_ABSTAIN;
     }
 

diff --git a/src/main/java/org/italiangrid/storm/webdav/authz/voters/FineGrainedCopyMoveAuthzVoter.java b/src/main/java/org/italiangrid/storm/webdav/authz/voters/FineGrainedCopyMoveAuthzVoter.java
@@ -15,7 +15,6 @@
  */
 package org.italiangrid.storm.webdav.authz.voters;
 
-import static java.util.Objects.isNull;
 import static org.italiangrid.storm.webdav.server.servlet.WebDAVMethod.COPY;
 import static org.italiangrid.storm.webdav.server.servlet.WebDAVMethod.PUT;
 
@@ -68,7 +67,7 @@ && requestHasRemoteDestinationHeader(filter.getRequest(), localUrlService)) {
       String destinationPath = getSanitizedPathFromUrl(destination);
       StorageAreaInfo sa = resolver.resolveStorageArea(destinationPath);
 
-      if (isNull(sa)) {
+      if (sa == null) {
         return ACCESS_ABSTAIN;
       }
 

diff --git a/src/main/java/org/italiangrid/storm/webdav/authz/voters/WlcgScopeAuthzCopyMoveVoter.java b/src/main/java/org/italiangrid/storm/webdav/authz/voters/WlcgScopeAuthzCopyMoveVoter.java
@@ -15,7 +15,6 @@
  */
 package org.italiangrid.storm.webdav.authz.voters;
 
-import static java.util.Objects.isNull;
 import static org.italiangrid.storm.webdav.server.servlet.WebDAVMethod.COPY;
 import static org.italiangrid.storm.webdav.server.servlet.WebDAVMethod.PUT;
 
@@ -74,7 +73,7 @@ && requestHasRemoteDestinationHeader(filter.getRequest(), localUrlService)) {
       String destinationPath = getSanitizedPathFromUrl(destination);
       StorageAreaInfo sa = resolver.resolveStorageArea(destinationPath);
 
-      if (isNull(sa)) {
+      if (sa == null) {
         return ACCESS_ABSTAIN;
       }
 

diff --git a/src/main/java/org/italiangrid/storm/webdav/authz/voters/WlcgScopeAuthzVoter.java b/src/main/java/org/italiangrid/storm/webdav/authz/voters/WlcgScopeAuthzVoter.java
@@ -15,7 +15,6 @@
  */
 package org.italiangrid.storm.webdav.authz.voters;
 
-import static java.util.Objects.isNull;
 import static org.italiangrid.storm.webdav.authz.pdp.PathAuthorizationRequest.newAuthorizationRequest;
 
 import java.util.Collection;
@@ -53,7 +52,7 @@ public int vote(Authentication authentication, FilterInvocation filter,
     final String requestPath = getRequestPath(filter.getHttpRequest());
     StorageAreaInfo sa = resolver.resolveStorageArea(requestPath);
 
-    if (isNull(sa)) {
+    if (sa == null) {
       return ACCESS_ABSTAIN;
     }
 

diff --git a/src/main/java/org/italiangrid/storm/webdav/config/validation/PrincipalValidator.java b/src/main/java/org/italiangrid/storm/webdav/config/validation/PrincipalValidator.java
@@ -17,7 +17,6 @@
 
 import static com.google.common.base.Strings.isNullOrEmpty;
 import static java.lang.String.format;
-import static java.util.Objects.isNull;
 import static org.italiangrid.storm.webdav.config.FineGrainedAuthzPolicyProperties.PrincipalProperties.PrincipalType.FQAN;
 import static org.italiangrid.storm.webdav.config.FineGrainedAuthzPolicyProperties.PrincipalProperties.PrincipalType.JWT_GROUP;
 import static org.italiangrid.storm.webdav.config.FineGrainedAuthzPolicyProperties.PrincipalProperties.PrincipalType.JWT_SCOPE;
@@ -63,8 +62,8 @@ public boolean isValid(
       ConstraintValidatorContext context) {
 
     Collection<String> requiredArgs = REQUIRED_ARGS.get(value.getType());
-    
-    if (isNull(requiredArgs) || requiredArgs.isEmpty()) {
+
+    if (requiredArgs == null || requiredArgs.isEmpty()) {
       return true;
     }
 

diff --git a/src/main/java/org/italiangrid/storm/webdav/metrics/StorageAreaStatsFilter.java b/src/main/java/org/italiangrid/storm/webdav/metrics/StorageAreaStatsFilter.java
@@ -16,7 +16,6 @@
 package org.italiangrid.storm.webdav.metrics;
 
 import static com.codahale.metrics.MetricRegistry.name;
-import static java.util.Objects.isNull;
 
 import java.io.IOException;
 
@@ -52,7 +51,7 @@ public StorageAreaStatsFilter(MetricRegistry registry, PathResolver resolver) {
   private void updateStats(HttpServletRequest request, HttpServletResponse response) {
     StorageAreaInfo sa = resolver.resolveStorageArea(getSerlvetRequestPath(request));
 
-    if (!isNull(sa)) {
+    if (sa != null) {
       String prefix = name(SA_KEY, sa.name(), REQUESTS_KEY);
       registry.meter(prefix).mark();
       if (response.getStatus() >= 400) {

diff --git a/src/main/java/org/italiangrid/storm/webdav/milton/StoRMFileResource.java b/src/main/java/org/italiangrid/storm/webdav/milton/StoRMFileResource.java
@@ -16,7 +16,6 @@
 package org.italiangrid.storm.webdav.milton;
 
 import static io.milton.property.PropertySource.PropertyAccessibility.READ_ONLY;
-import static java.util.Objects.isNull;
 
 import java.io.BufferedInputStream;
 import java.io.File;
@@ -126,15 +125,15 @@ public void replaceContent(InputStream in, Long length)
   protected void validateRange(Range range) {
     long fileSize = getFile().length();
 
-    if (isNull(range.getStart())) {
+    if (range.getStart() == null) {
       throw new StoRMWebDAVError("Invalid range: range start not defined");
     }
 
     if (range.getStart() >= fileSize) {
       throw new StoRMWebDAVError("Invalid range: range start out of bounds");
     }
 
-    if (!isNull(range.getFinish()) && range.getFinish() > fileSize) {
+    if (range.getFinish() != null && range.getFinish() > fileSize) {
       throw new StoRMWebDAVError("Invalid range: range end out of bounds");
     }
   }
@@ -147,7 +146,7 @@ public void replacePartialContent(Range range, InputStream in) {
     long rangeStart = range.getStart();
     long rangeEnd = getFile().length();
 
-    if (!isNull(range.getFinish()) && range.getFinish() < rangeEnd) {
+    if (range.getFinish() != null && range.getFinish() < rangeEnd) {
       rangeEnd = range.getFinish();
     }
 

diff --git a/src/main/java/org/italiangrid/storm/webdav/oauth/GrantedAuthoritiesMapperSupport.java b/src/main/java/org/italiangrid/storm/webdav/oauth/GrantedAuthoritiesMapperSupport.java
@@ -15,8 +15,6 @@
  */
 package org.italiangrid.storm.webdav.oauth;
 
-import static java.util.Objects.isNull;
-
 import java.util.Collection;
 import java.util.Set;
 
@@ -48,7 +46,7 @@ public GrantedAuthoritiesMapperSupport(StorageAreaConfiguration conf,
     authzServerProperties = props.getAuthzServer();
 
     for (StorageAreaInfo sa : conf.getStorageAreaInfo()) {
-      if (!isNull(sa.orgs())) {
+      if (sa.orgs() != null) {
         sa.orgs().forEach(i -> addSaGrantedAuthorities(sa, i));
       }
     }