Remove S3 handling

Author: dominikl

.gitignore

@@ -1,3 +1,4 @@
+.vscode
 .DS_Store
 target
 .idea

pom.xml

@@ -87,51 +87,6 @@
   </ciManagement>
 
   <dependencies>
-    <dependency>
-     <groupId>io.minio</groupId>
-     <artifactId>minio</artifactId>
-     <version>5.0.2</version>
-     <exclusions>
-       <exclusion>
-         <groupId>commons-codec</groupId>
-         <artifactId>commons-codec</artifactId>
-       </exclusion>
-       <exclusion>
-         <groupId>commons-logging</groupId>
-         <artifactId>commons-logging</artifactId>
-       </exclusion>
-       <exclusion>
-         <groupId>com.google.code.findbugs</groupId>
-         <artifactId>annotations</artifactId>
-       </exclusion>
-       <exclusion>
-         <groupId>com.google.code.findbugs</groupId>
-         <artifactId>jsr305</artifactId>
-       </exclusion>
-       <exclusion>
-         <groupId>com.fasterxml.jackson.core</groupId>
-         <artifactId>jackson-databind</artifactId>
-       </exclusion>
-       <exclusion>
-         <groupId>com.fasterxml.jackson.core</groupId>
-         <artifactId>jackson-core</artifactId>
-       </exclusion>
-       <exclusion>
-         <groupId>com.fasterxml.jackson.core</groupId>
-         <artifactId>jackson-annotations</artifactId>
-       </exclusion>
-     </exclusions>
-    </dependency>
-    <dependency>
-      <groupId>com.fasterxml.jackson.core</groupId>
-      <artifactId>jackson-databind</artifactId>
-      <version>2.14.2</version>
-    </dependency>
-    <dependency>
-      <groupId>com.fasterxml.jackson.core</groupId>
-      <artifactId>jackson-annotations</artifactId>
-      <version>2.14.2</version>
-    </dependency>
     <dependency>
      <groupId>com.esotericsoftware</groupId>
      <artifactId>kryo</artifactId>

src/main/java/loci/common/Location.java

@@ -203,14 +203,8 @@ public Location(String parent, String child) {
         pathname = child;
         uri = new URI(mapped);
         isURL = true;
-        if (S3Handle.canHandleScheme(uri.toString())) {
-          urlType = UrlType.S3;
-          url = null;
-        }
-        else {
-          urlType = UrlType.GENERIC;
-          url = uri.toURL();
-        }
+        urlType = UrlType.GENERIC;
+        url = uri.toURL();
       }
       catch (URISyntaxException | MalformedURLException e) {
         // Readers such as FilePatternReader may pass invalid URI paths
@@ -486,23 +480,8 @@ public static IRandomAccess getHandle(String id, boolean writable,
       LOGGER.trace("no handle was mapped for this ID");
       String mapId = getMappedId(id);
 
-      if (S3Handle.canHandleScheme(id)) {
-        StreamHandle.Settings ss = new StreamHandle.Settings();
-        if (ss.getRemoteCacheRootDir() != null) {
-          String cachedFile = S3Handle.cacheObject(mapId, ss);
-          if (bufferSize > 0) {
-            handle = new NIOFileHandle(
-              new File(cachedFile), "r", bufferSize);
-          }
-          else {
-            handle = new NIOFileHandle(cachedFile, "r");
-          }
-        }
-        else {
-          handle = new S3Handle(mapId);
-        }
-      }
-      else if (id.startsWith("http://") || id.startsWith("https://")) {
+      if (id.startsWith("http://") || id.startsWith("https://")
+          || id.startsWith("s3://")) {
         handle = new URLHandle(mapId);
       }
       else if (allowArchiveHandles && ZipHandle.isZipFile(mapId)) {
@@ -918,32 +897,9 @@ public boolean isAbsolute() {
   public boolean isDirectory() {
     LOGGER.trace("isDirectory()");
     if (isURL) {
-      if (urlType == UrlType.S3) {
-        // TODO: This is complicated
-        //
-        // S3 doesn't have directories, but keys can contain / which we
-        // can pretend is a file path. However this "directory" doesn't
-        // actually exist, only the "contents" of the directory exist.
-        //
-        // Minio.listObjects() lists all objects in a bucket that
-        // match an optional prefix so this could be an option for checking
-        // whether to trest this as a directory.
-        //
-        // S3 buckets are the closest thing to a proper directory
-        // so for now
-        try {
-          S3Handle h = new S3Handle(uri.toString());
-          boolean isBucket = h.isBucket();
-          h.close();
-          return isBucket;
-        } catch (IOException e) {
-          throw new UncheckedIOException(e);
-        }
-      } else {
-        // TODO: this should be removed as well.
-        String[] list = list();
-        return list != null;
-      }
+      // TODO: this should be removed as well.
+      String[] list = list();
+      return list != null;
     }
     return file.isDirectory();
   }